:root {
    --studio-bg-base: #000000;
    --studio-bg-raised: rgba(12, 14, 18, 0.72);
    --studio-bg-surface: rgba(16, 18, 24, 0.78);
    --studio-bg-overlay: rgba(20, 22, 30, 0.85);
    --studio-bg-input: rgba(6, 8, 12, 0.92);
    --studio-bg-hover: rgba(255, 255, 255, 0.07);
    --studio-border: rgba(255, 255, 255, 0.09);
    --studio-border-strong: rgba(255, 255, 255, 0.16);
    --studio-border-accent: rgba(255, 184, 77, 0.3);
    --studio-accent: rgb(255, 184, 77);
    --studio-accent-dim: rgba(255, 184, 77, 0.62);
    --studio-accent-soft: rgba(255, 184, 77, 0.22);
    --studio-accent-bright: #ffd58c;
    --studio-warm: #c49a6c;
    --studio-coral: #e06c50;
    --studio-clip-status-raw: #8f98a6;
    --studio-clip-status-processing: #ffb84d;
    --studio-clip-status-error: #ff6b6b;
    --studio-clip-status-processed: #5fd18c;
    --studio-text: #e4e4ea;
    --studio-text-secondary: rgba(255, 255, 255, 0.52);
    --studio-text-dim: rgba(255, 255, 255, 0.30);
    --studio-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.32);
    --studio-shadow: 0 6px 24px rgba(0, 0, 0, 0.44);
    --studio-shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.56);
    --studio-radius-xs: 4px;
    --studio-radius-sm: 6px;
    --studio-radius-md: 8px;
    --studio-radius-lg: 10px;
    --studio-radius-xl: 12px;
    --studio-track-row-height: 176px;
    --studio-inspector-width: 280px;
    --studio-panel-width: 210px;
}

/* ─────────────── Shell ─────────────── */

.studio-shell {
    width: min(1240px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 80px;
}

.studio-dashboard-header,
.studio-dashboard-toolbar,
.studio-project-list,
.studio-modal__dialog,
.studio-effect-window__frame,
.studio-tutorials-sidebar,
.studio-tutorial-panel,
.studio-daw-transport,
.studio-daw-sidebar,
.studio-daw-inspector,
.studio-daw-arrangement,
.studio-track-card {
    position: relative;
    overflow: hidden;
}

.studio-dashboard-header::before,
.studio-dashboard-toolbar::before,
.studio-project-list::before,
.studio-modal__dialog::before,
.studio-effect-window__frame::before,
.studio-tutorials-sidebar::before,
.studio-tutorial-panel::before,
.studio-daw-transport::before,
.studio-daw-sidebar::before,
.studio-daw-inspector::before,
.studio-daw-arrangement::before,
.studio-track-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: min(140px, 35%);
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 184, 77, 0.78), rgba(255, 184, 77, 0));
    pointer-events: none;
    z-index: 1;
}

.studio-dashboard-header::after,
.studio-dashboard-toolbar::after,
.studio-project-list::after,
.studio-modal__dialog::after,
.studio-effect-window__frame::after,
.studio-tutorials-sidebar::after,
.studio-tutorial-panel::after,
.studio-daw-transport::after,
.studio-daw-sidebar::after,
.studio-daw-inspector::after,
.studio-daw-arrangement::after,
.studio-track-card::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    width: min(140px, 35%);
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 184, 77, 0), rgba(255, 184, 77, 0.58));
    pointer-events: none;
    z-index: 1;
}

.studio-shell [hidden] {
    display: none !important;
}

.studio-shell__inner {
    display: grid;
    gap: 24px;
}

/* ─────────────── Typography ─────────────── */

.studio-section {
    display: grid;
    gap: 24px;
    margin-top: 40px;
}

.studio-section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--studio-text-secondary);
}

.studio-section-label::before {
    content: "";
    width: 24px;
    height: 1px;
    background: var(--studio-accent-dim);
}

.studio-section-heading {
    max-width: 720px;
}

.studio-section-heading h2,
.studio-feature__copy h2,
.studio-cta__copy h2,
.studio-empty-state h2,
.studio-process-placeholder__copy h1,
.studio-dashboard-header h1 {
    margin: 8px 0 10px;
    font-family: "Manrope", "Rubik", sans-serif;
    font-size: clamp(1.6rem, 2.6vw, 2.6rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--studio-text);
}

.studio-section-heading p,
.studio-feature__copy p,
.studio-cta__copy p,
.studio-dashboard-header__copy p,
.studio-empty-state p,
.studio-process-placeholder__copy p,
.studio-modal__content p {
    margin: 0;
    max-width: 56ch;
    font-size: 0.92rem;
    line-height: 1.65;
    color: var(--studio-text-secondary);
}

/* ─────────────── Buttons ─────────────── */

.studio-primary-button,
.studio-secondary-button,
.studio-danger-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
    padding: 0 18px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid transparent;
    font-weight: 600;
    font-size: 0.84rem;
    text-decoration: none;
    cursor: pointer;
    transition: background 120ms ease, border-color 120ms ease, opacity 120ms ease;
}

.studio-primary-button {
    color: #130f08;
    background: linear-gradient(135deg, var(--studio-accent-bright), var(--studio-accent));
    border-color: rgba(255, 184, 77, 0.72);
    box-shadow: 0 10px 26px rgba(255, 184, 77, 0.2);
}

.studio-primary-button:hover {
    background: linear-gradient(135deg, #ffe1a8, #ffc874);
    box-shadow: 0 14px 30px rgba(255, 184, 77, 0.28);
}

.studio-secondary-button {
    color: var(--studio-text);
    border-color: var(--studio-border-strong);
    background: var(--studio-bg-hover);
}

.studio-secondary-button:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.07);
}

.studio-secondary-button--sm {
    min-height: 30px;
    padding: 0 12px;
    font-size: 0.8125rem;
}

.studio-danger-button {
    color: #fff;
    background: #c9403a;
    border-color: #c9403a;
}

.studio-danger-button:hover {
    background: #d9524c;
}

.studio-secondary-button--danger {
    color: #f08080;
    border-color: rgba(240, 128, 128, 0.2);
}

.studio-secondary-button--danger:hover {
    color: #fff;
    border-color: rgba(240, 128, 128, 0.4);
    background: rgba(240, 128, 128, 0.12);
}

/* ─────────────── Icon Buttons ─────────────── */

.studio-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    cursor: pointer;
    transition: border-color 100ms ease, color 100ms ease, background 100ms ease;
}

.studio-icon-btn:hover {
    border-color: var(--studio-border-strong);
    color: var(--studio-text);
    background: rgba(255, 255, 255, 0.05);
}

.studio-icon-btn--accent {
    background: linear-gradient(135deg, var(--studio-accent-bright), var(--studio-accent));
    border-color: rgba(255, 184, 77, 0.72);
    color: #140f08;
    box-shadow: 0 8px 20px rgba(255, 184, 77, 0.2);
}

.studio-icon-btn--accent:hover {
    background: linear-gradient(135deg, #ffe1a8, #ffc874);
    border-color: #ffd58c;
    color: #140f08;
}

.studio-icon-btn--record {
    color: #e06c50;
    border-color: rgba(224, 108, 80, 0.25);
}

.studio-icon-btn--record:hover:not(:disabled) {
    background: rgba(224, 108, 80, 0.1);
    border-color: rgba(224, 108, 80, 0.4);
    color: #e06c50;
}

.studio-icon-btn--record.is-recording {
    background: #e06c50;
    border-color: #e06c50;
    color: #fff;
    animation: pulse-record 1.2s ease infinite;
}

.studio-icon-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.studio-icon-btn--ghost {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.02);
}

.studio-icon-btn--ghost:hover:not(:disabled) {
    border-color: rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.06);
}

.studio-icon-btn--danger-outline {
    color: rgba(255, 130, 130, 0.95);
    border-color: rgba(255, 120, 120, 0.22);
}

.studio-icon-btn--danger-outline:hover:not(:disabled) {
    color: #ffb0b0;
    border-color: rgba(255, 140, 140, 0.45);
    background: rgba(255, 80, 80, 0.08);
}

a.studio-icon-btn.is-disabled {
    pointer-events: none;
    opacity: 0.35;
    cursor: not-allowed;
}

@keyframes pulse-record {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ─────────────── Tooltip ─────────────── */

/*
 * Studio uses a JS portal tooltip (studio-tooltip.js) so the bubble is
 * appended directly to <body> and is never clipped by any overflow:hidden
 * ancestor or trapped inside a backdrop-filter / will-change stacking context.
 *
 * The legacy CSS ::after approach is fully suppressed below; all visual
 * styling lives on #studio-tooltip-portal.
 */

[data-tooltip] {
    position: relative;
}

/* Suppress CSS pseudo-element tooltips — the JS portal handles display. */
[data-tooltip]::after,
[data-tooltip]:hover::after {
    display: none !important;
}

/* Do not create an unnecessary stacking context on hover. */
[data-tooltip]:hover {
    z-index: auto;
}

/* ── JS Tooltip portal (appended to <body> by studio-tooltip.js) ── */

#studio-tooltip-portal {
    position: fixed;
    top: -9999px;
    left: 0;
    z-index: 2147483647;
    pointer-events: none;
    padding: 5px 10px;
    border-radius: var(--studio-radius-xs);
    background: rgba(10, 12, 18, 0.97);
    border: 1px solid rgba(255, 184, 77, 0.34);
    color: var(--studio-text);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 120ms ease;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
}

#studio-tooltip-portal.is-visible {
    opacity: 1;
}

/* ─────────────── Badges ─────────────── */

.studio-badge {
    display: inline-flex;
    align-items: center;
    min-height: 22px;
    padding: 0 8px;
    border-radius: var(--studio-radius-xs);
    background: rgba(114, 255, 215, 0.1);
    color: var(--studio-accent-dim);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.studio-badge--soft {
    background: rgba(255, 255, 255, 0.06);
    color: var(--studio-text-secondary);
}

/* ─────────────── Fields & Inputs ─────────────── */

.studio-field {
    display: grid;
    gap: 6px;
}

.studio-field span {
    color: var(--studio-text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
}

.studio-field input,
.studio-sort-control select {
    min-height: 36px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    padding: 0 12px;
    font: inherit;
    font-size: 0.88rem;
}

.studio-field textarea {
    min-height: 96px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    padding: 10px 12px;
    font: inherit;
    font-size: 0.88rem;
    resize: vertical;
}

.studio-project-settings-meta {
    margin-top: 8px;
    padding: 14px 16px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.04), rgba(0, 0, 0, 0.2));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    display: grid;
    gap: 10px;
}

.studio-project-settings-meta__row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 10px 14px;
    font-size: 0.86rem;
    color: var(--studio-text);
}

.studio-project-settings-meta__key {
    min-width: 108px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--studio-text-secondary);
}

/* ─────────────── Nav Shell (Studio) ─────────────── */

body.wyverno-body--studio .wyverno-nav.studio-nav {
    background: #000000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: none;
}

body.studio-sidebar-open {
    overflow: hidden;
}

.studio-nav-shell {
    width: min(100% - 32px, 1360px);
    margin: 0 auto;
    padding: 14px 0 8px;
}

.studio-nav-bar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--studio-radius-lg);
    background: linear-gradient(180deg, rgba(18, 20, 26, 0.95) 0%, rgba(4, 4, 6, 0.92) 100%);
    backdrop-filter: blur(20px) saturate(150%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.studio-nav-left {
    justify-self: start;
}

.studio-nav-center {
    justify-self: center;
}

.studio-nav-right {
    justify-self: end;
    display: flex;
    align-items: center;
    gap: 8px;
}

.studio-nav-burger {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: transparent;
    color: var(--studio-text-secondary);
    cursor: pointer;
    transition: border-color 100ms ease, color 100ms ease, background 100ms ease;
}

.studio-nav-burger:hover {
    border-color: var(--studio-border-strong);
    color: var(--studio-text);
    background: rgba(255, 255, 255, 0.04);
}

.studio-nav-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: rgba(255, 255, 255, 0.02);
    color: var(--studio-text-secondary);
    font-size: 0.84rem;
    font-weight: 600;
    text-decoration: none;
    transition: border-color 100ms ease, color 100ms ease, background 100ms ease;
}

.studio-nav-back:hover {
    border-color: var(--studio-border-strong);
    color: var(--studio-text);
    background: rgba(255, 255, 255, 0.05);
}

.studio-nav-title {
    color: var(--studio-text);
    text-decoration: none;
    font-size: clamp(0.92rem, 1.4vw, 1.1rem);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ─────────────── Slide-out Sidebar ─────────────── */

.studio-sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 110;
    background: rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity 160ms ease;
}

.studio-sidebar-backdrop.is-open {
    opacity: 1;
}

.studio-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 120;
    width: min(300px, calc(100vw - 28px));
    padding: 20px 16px;
    display: grid;
    align-content: start;
    gap: 18px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    background: #000000;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(calc(-100% - 8px));
    transition: transform 180ms ease;
}

.studio-sidebar.is-open {
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
}

.studio-sidebar__header,
.studio-sidebar__section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.studio-sidebar__header strong,
.studio-sidebar__section-head h2 {
    margin: 0;
    color: var(--studio-text);
}

.studio-sidebar__close {
    width: 34px;
    height: 34px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: transparent;
    color: var(--studio-text);
    font-size: 1.2rem;
    cursor: pointer;
}

.studio-sidebar__nav,
.studio-sidebar__recent {
    display: grid;
    gap: 6px;
}

.studio-sidebar__link,
.studio-sidebar__recent-item {
    display: block;
    padding: 10px 12px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: transparent;
    color: var(--studio-text);
    text-decoration: none;
    font-size: 0.88rem;
    transition: background 120ms ease, border-color 120ms ease;
}

.studio-sidebar__link.is-active,
.studio-sidebar__recent-item.is-active,
.studio-sidebar__link:hover,
.studio-sidebar__recent-item:hover {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.04);
}

.studio-sidebar__section {
    display: grid;
    gap: 10px;
    padding-top: 4px;
    border-top: 1px solid var(--studio-border);
}

.studio-sidebar__footer {
    display: grid;
    gap: 10px;
    padding-top: 4px;
}

.studio-sidebar__clear {
    width: 100%;
}

.studio-sidebar__empty {
    margin: 0;
    padding: 10px 12px;
    border-radius: var(--studio-radius-sm);
    background: rgba(255, 255, 255, 0.02);
    color: var(--studio-text-dim);
    font-size: 0.84rem;
}

/* ─────────────── Modal ─────────────── */

.studio-modal {
    position: fixed;
    inset: 0;
    display: none;
    padding: 20px;
    place-items: center;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(12px) saturate(140%);
    z-index: 2000;
}

.studio-modal.is-open {
    display: grid;
}

.studio-modal__dialog {
    position: relative;
    width: min(100%, 480px);
    border-radius: var(--studio-radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: linear-gradient(165deg, rgba(22, 26, 34, 0.94) 0%, rgba(8, 10, 14, 0.92) 100%);
    backdrop-filter: blur(24px) saturate(160%);
    box-shadow: var(--studio-shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    transform: translateY(10px);
    transition: transform 140ms ease;
}

.studio-modal__dialog--wide {
    width: min(100%, 520px);
}

.studio-modal.is-open .studio-modal__dialog {
    transform: translateY(0);
}

.studio-modal__content {
    display: grid;
    gap: 14px;
    padding: 24px;
}

.studio-modal__content h2 {
    margin: 0;
    font-family: "Manrope", "Rubik", sans-serif;
    font-size: 1.4rem;
    letter-spacing: -0.02em;
}

.studio-modal__close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text);
    cursor: pointer;
    font-size: 1rem;
}

.studio-modal__actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.studio-project-settings__hint {
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.45;
    color: var(--studio-text-dim);
}

/* z-index is assigned dynamically by JS when the modal opens */
.studio-reference-trim-modal.studio-modal {
}

.studio-reference-trim-modal__dialog {
    width: min(100%, 520px);
    max-height: min(92vh, 720px);
    display: flex;
    flex-direction: column;
}

.studio-reference-trim-modal__content {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: min(80vh, 640px);
    overflow-y: auto;
}

.studio-reference-trim-time {
    font-variant-numeric: tabular-nums;
    font-size: 0.82rem;
    color: var(--studio-text-secondary);
}

.studio-reference-trim-body {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 10px;
    align-items: stretch;
}

.studio-reference-trim-play {
    width: 40px;
    height: 40px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: rgba(0, 0, 0, 0.35);
    color: var(--studio-accent);
    cursor: pointer;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    transition: border-color 140ms ease, background 140ms ease;
}

.studio-reference-trim-play:hover {
    border-color: rgba(114, 255, 215, 0.45);
    background: rgba(114, 255, 215, 0.08);
}

.studio-reference-trim-play.is-playing {
    color: var(--studio-warm);
}

.studio-reference-trim-wave-host {
    position: relative;
    min-height: 88px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    overflow: hidden;
}

.studio-reference-trim-wave {
    display: block;
    width: 100%;
    height: 88px;
    vertical-align: top;
    pointer-events: none;
}

.studio-reference-trim-overlay {
    position: absolute;
    inset: 0;
    pointer-events: auto;
}

.studio-reference-trim-shade {
    position: absolute;
    top: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.55);
    pointer-events: none;
}

.studio-reference-trim-shade--left {
    left: 0;
}

.studio-reference-trim-shade--right {
    right: 0;
}

.studio-reference-trim-selection {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 1;
    border-left: 2px solid var(--studio-accent);
    border-right: 2px solid var(--studio-accent);
    background: rgba(114, 255, 215, 0.06);
    box-sizing: border-box;
}

.studio-reference-trim-move-strip {
    position: absolute;
    inset: 0;
    z-index: 1;
    cursor: grab;
    touch-action: none;
}

.studio-reference-trim-move-strip:active {
    cursor: grabbing;
}

.studio-reference-trim-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 28px;
    transform: translateX(-50%);
    cursor: ew-resize;
    z-index: 2;
    touch-action: none;
}

.studio-reference-trim-handle::after {
    content: "";
    position: absolute;
    top: 6px;
    bottom: 6px;
    left: 50%;
    width: 6px;
    transform: translateX(-50%);
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4);
    pointer-events: none;
}

.studio-reference-trim-handle--start {
    left: 0;
}

.studio-reference-trim-handle--end {
    left: 100%;
}

.studio-reference-trim-playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 4;
    width: 3px;
    margin-left: -1.5px;
    background: #ff3b3b;
    pointer-events: auto;
    cursor: ew-resize;
    box-shadow:
        0 0 14px rgba(255, 59, 59, 0.95),
        0 0 0 1px rgba(0, 0, 0, 0.5);
    border-radius: 1px;
}

.studio-reference-trim-tools {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.studio-reference-trim-tools .studio-secondary-button {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.studio-reference-trim-tools__hint {
    margin: 0;
    font-size: 0.76rem;
    line-height: 1.45;
    color: var(--studio-text-dim);
}

.studio-reference-trim-status {
    margin: 0;
    min-height: 1.25em;
    font-size: 0.8rem;
    color: var(--studio-warm);
}

.studio-reference-trim-help {
    margin: 0;
    font-size: 0.78rem;
    line-height: 1.45;
    color: var(--studio-text-dim);
}

.studio-reference-trim-modal__actions {
    margin-top: 4px;
}

.studio-reference-trim-separate__spinner {
    display: none;
    width: 14px;
    height: 14px;
    margin-left: 8px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: var(--studio-accent);
    border-radius: 50%;
    animation: studio-trim-spin 0.7s linear infinite;
    vertical-align: middle;
}

.studio-reference-trim-separate.is-loading .studio-reference-trim-separate__spinner {
    display: inline-block;
}

.studio-reference-trim-separate.is-loading {
    pointer-events: none;
    opacity: 0.85;
}

@keyframes studio-trim-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Studio Voice Modal (Cleaning Process + Result) */
.studio-daw-page .voice-modal {
    z-index: 2000;
    padding: 18px;
    background: rgba(0, 0, 0, 0.72);
    align-items: center;
    justify-content: center;
}

.studio-daw-page .voice-dialog {
    width: min(520px, 92vw);
    padding: 22px;
    border-radius: 18px;
    border: 1px solid var(--studio-border);
    background: linear-gradient(165deg, rgba(18, 22, 30, 0.98), rgba(6, 8, 12, 0.98));
    box-shadow: var(--studio-shadow-lg);
    gap: 14px;
    transform: translateY(10px) scale(0.99);
}

.studio-daw-page .voice-modal.is-open .voice-dialog {
    transform: translateY(0) scale(1);
}

.studio-daw-page .voice-close {
    top: 14px;
    right: 14px;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(6, 8, 12, 0.92);
    color: var(--studio-text);
    font-size: 1.1rem;
}

.studio-daw-page .voice-close:hover {
    border-color: rgba(255, 184, 77, 0.7);
    transform: rotate(0deg);
}

.studio-daw-page .voice-label {
    color: var(--studio-accent);
    font-size: 0.62rem;
    margin-bottom: 8px;
}

.studio-daw-page .voice-title {
    font-size: 1.28rem;
}

.studio-daw-page .voice-body {
    gap: 12px;
}

.studio-daw-page .voice-progress,
.studio-daw-page .voice-preview {
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.42);
}

.studio-daw-page .voice-progress {
    padding: 14px;
    gap: 10px;
}

.studio-daw-page .voice-spinner {
    width: 26px;
    height: 26px;
    border: 2px solid rgba(255, 184, 77, 0.18);
    border-top-color: rgba(255, 184, 77, 0.92);
}

.studio-daw-page .voice-status {
    color: var(--studio-text-secondary);
    font-size: 0.9rem;
}

.studio-daw-page .voice-preview {
    padding: 14px;
    gap: 10px;
}

.studio-daw-page .voice-waveblock {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 12px;
}

.studio-daw-page .voice-play {
    width: 66px;
    height: 66px;
    border-radius: var(--studio-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(6, 8, 12, 0.92);
    font-size: 1.8rem;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
}

.studio-daw-page .voice-play:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 184, 77, 0.6);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.42);
}

.studio-daw-page .voice-play.is-playing {
    border-color: rgba(255, 184, 77, 0.8);
    color: var(--studio-accent);
    box-shadow: 0 18px 44px rgba(255, 184, 77, 0.12);
}

.studio-daw-page .voice-waveframe {
    border-radius: 12px;
    background: rgba(6, 8, 12, 0.92);
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.studio-daw-page .voice-wave {
    height: 88px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.35);
}

.studio-daw-page .voice-playhead {
    top: 8px;
    bottom: 8px;
    background: var(--studio-accent);
    box-shadow: 0 0 12px rgba(255, 184, 77, 0.45);
}

.studio-daw-page .voice-question {
    color: var(--studio-text);
    font-size: 0.98rem;
}

.studio-daw-page .voice-actions {
    gap: 8px;
}

.studio-daw-page .voice-actions .studio-primary-button,
.studio-daw-page .voice-actions .studio-secondary-button {
    min-height: 34px;
    padding: 0 14px;
    font-size: 0.82rem;
}

/* ─────────────── Toast ─────────────── */

.studio-toast-stack {
    position: fixed;
    right: 16px;
    bottom: 16px;
    display: grid;
    gap: 6px;
    z-index: 3000;
}

.studio-toast {
    min-width: 220px;
    max-width: 320px;
    padding: 10px 14px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-overlay);
    box-shadow: var(--studio-shadow);
    color: var(--studio-text);
    font-size: 0.86rem;
}

.studio-toast--error {
    border-color: rgba(200, 80, 80, 0.3);
}

/* ─────────────── Breadcrumb ─────────────── */

.studio-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.84rem;
    color: var(--studio-text-dim);
}

.studio-breadcrumb a {
    color: var(--studio-text-secondary);
    text-decoration: none;
}

.studio-breadcrumb a:hover {
    color: var(--studio-text);
}

/* ═══════════════ DASHBOARD ═══════════════ */

.studio-dashboard-page {
    position: relative;
}

.studio-dashboard-header,
.studio-dashboard-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.studio-dashboard-toolbar {
    padding: 12px 16px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-raised);
}

.studio-dashboard-hint {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--studio-radius-md);
    border: 1px solid rgba(255, 184, 77, 0.16);
    background: rgba(255, 184, 77, 0.06);
}

.studio-dashboard-hint__copy {
    margin: 0;
    max-width: 72ch;
    font-size: 0.86rem;
    line-height: 1.5;
    color: var(--studio-text-secondary);
}

.studio-dashboard-hint__copy a {
    color: var(--studio-accent-bright);
    text-decoration: none;
}

.studio-dashboard-hint__copy a:hover {
    text-decoration: underline;
}

.studio-dashboard-hint__dismiss {
    width: 28px;
    height: 28px;
    line-height: 1;
    font-size: 1.05rem;
    margin-top: -2px;
}

.studio-filter-tabs {
    display: inline-flex;
    padding: 3px;
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
    border: 1px solid var(--studio-border);
}

.studio-filter-tabs__button {
    min-height: 30px;
    padding: 0 14px;
    border: none;
    border-radius: var(--studio-radius-xs);
    background: transparent;
    color: var(--studio-text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
}

.studio-filter-tabs__button.is-active {
    color: var(--studio-text);
    background: var(--studio-bg-overlay);
}

.studio-sort-control {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--studio-text-secondary);
    font-size: 0.84rem;
}

.studio-dashboard-body {
    position: relative;
    min-height: 300px;
}

.studio-dashboard-loading,
.studio-empty-state {
    display: grid;
    justify-items: center;
    gap: 14px;
    padding: 56px 20px;
    border-radius: var(--studio-radius-lg);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-raised);
    text-align: center;
}

.studio-dashboard-loading__spinner {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--studio-border-strong);
    border-top-color: var(--studio-accent);
    animation: studio-spin 0.8s linear infinite;
}

.studio-empty-state__art {
    position: relative;
    width: 100px;
    height: 64px;
}

.studio-empty-state__art span {
    position: absolute;
    inset: auto;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-overlay);
}

.studio-empty-state__art span:nth-child(1) {
    width: 64px;
    height: 40px;
    left: 0;
    bottom: 6px;
    transform: rotate(-8deg);
}

.studio-empty-state__art span:nth-child(2) {
    width: 68px;
    height: 44px;
    right: 4px;
    bottom: 0;
}

.studio-empty-state__art span:nth-child(3) {
    width: 32px;
    height: 32px;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    border-radius: 50%;
}

/* ═══════════════ TUTORIALS ═══════════════ */

.studio-tutorials-page {
    position: relative;
}

.studio-tutorials-layout {
    display: grid;
    grid-template-columns: minmax(240px, 290px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.studio-tutorials-sidebar {
    position: sticky;
    top: 24px;
    display: grid;
    gap: 10px;
    padding: 16px;
    border-radius: var(--studio-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(180deg, rgba(18, 20, 26, 0.92) 0%, rgba(7, 8, 12, 0.94) 100%);
    backdrop-filter: blur(18px) saturate(145%);
    box-shadow: var(--studio-shadow);
}

.studio-tutorials-nav {
    display: grid;
    gap: 8px;
}

.studio-tutorials-nav__button {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    min-height: 48px;
    padding: 12px 14px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-md);
    background: rgba(255, 255, 255, 0.02);
    color: var(--studio-text-secondary);
    font: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    text-align: left;
    cursor: pointer;
    transition: border-color 120ms ease, background 120ms ease, color 120ms ease, transform 120ms ease;
}

.studio-tutorials-nav__button:hover,
.studio-tutorials-nav__button:focus-visible,
.studio-tutorials-nav__button.is-active {
    color: var(--studio-text);
    border-color: var(--studio-border-accent);
    background: rgba(255, 184, 77, 0.08);
    transform: translateX(2px);
}

.studio-tutorials-content {
    min-width: 0;
}

.studio-tutorial-panel {
    padding: clamp(22px, 3vw, 34px);
    border-radius: var(--studio-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(180deg, rgba(18, 20, 26, 0.88) 0%, rgba(8, 9, 13, 0.94) 100%);
    backdrop-filter: blur(22px) saturate(150%);
    box-shadow: 0 14px 42px rgba(0, 0, 0, 0.42);
}

.studio-tutorial-markdown {
    color: var(--studio-text);
}

.studio-tutorial-markdown > :first-child {
    margin-top: 0;
}

.studio-tutorial-markdown > :last-child {
    margin-bottom: 0;
}

.studio-tutorial-markdown h1,
.studio-tutorial-markdown h2,
.studio-tutorial-markdown h3,
.studio-tutorial-markdown h4 {
    margin: 1.5em 0 0.55em;
    font-family: "Manrope", "Rubik", sans-serif;
    letter-spacing: -0.02em;
    line-height: 1.16;
    color: var(--studio-text);
}

.studio-tutorial-markdown h1 {
    font-size: clamp(1.9rem, 3vw, 2.6rem);
}

.studio-tutorial-markdown h2 {
    font-size: clamp(1.25rem, 2vw, 1.55rem);
}

.studio-tutorial-markdown h3 {
    font-size: clamp(1.05rem, 1.5vw, 1.2rem);
}

.studio-tutorial-markdown p,
.studio-tutorial-markdown ul,
.studio-tutorial-markdown ol,
.studio-tutorial-markdown blockquote,
.studio-tutorial-markdown pre,
.studio-tutorial-markdown table {
    margin: 0 0 1.05rem;
}

.studio-tutorial-markdown p,
.studio-tutorial-markdown li {
    font-size: 0.96rem;
    line-height: 1.72;
    color: rgba(255, 255, 255, 0.84);
}

.studio-tutorial-markdown ul,
.studio-tutorial-markdown ol {
    padding-left: 1.25rem;
}

.studio-tutorial-markdown li + li {
    margin-top: 0.5rem;
}

.studio-tutorial-markdown a {
    color: var(--studio-accent-bright);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.16em;
}

.studio-tutorial-markdown a:hover {
    color: #ffe3ad;
}

.studio-tutorial-markdown strong {
    color: #fff0d1;
}

.studio-tutorial-markdown hr {
    margin: 1.5rem 0;
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.studio-tutorial-markdown blockquote {
    padding: 14px 16px;
    border-left: 3px solid rgba(255, 184, 77, 0.7);
    border-radius: 0 var(--studio-radius-md) var(--studio-radius-md) 0;
    background: rgba(255, 184, 77, 0.08);
}

.studio-tutorial-markdown blockquote > :last-child {
    margin-bottom: 0;
}

.studio-tutorial-markdown code {
    padding: 0.15em 0.42em;
    border-radius: 0.4em;
    background: rgba(255, 255, 255, 0.08);
    color: #fff0d1;
    font-size: 0.92em;
}

.studio-tutorial-markdown pre {
    padding: 16px;
    overflow-x: auto;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-md);
    background: rgba(0, 0, 0, 0.45);
}

.studio-tutorial-markdown pre code {
    display: block;
    padding: 0;
    background: transparent;
}

.studio-tutorial-markdown table {
    width: 100%;
    display: block;
    overflow-x: auto;
    border-collapse: collapse;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-md);
    background: rgba(255, 255, 255, 0.02);
}

.studio-tutorial-markdown th,
.studio-tutorial-markdown td {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    text-align: left;
    font-size: 0.92rem;
}

.studio-tutorial-markdown th {
    color: #fff0d1;
    font-weight: 700;
    background: rgba(255, 184, 77, 0.08);
}

.studio-tutorial-markdown tr:last-child td {
    border-bottom: none;
}

.studio-tutorial-markdown img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1.1rem 0;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    box-shadow: var(--studio-shadow);
}

/* ── Project list (dashboard) ── */

.studio-project-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-radius: var(--studio-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(180deg, rgba(16, 18, 24, 0.85) 0%, rgba(6, 7, 10, 0.9) 100%);
    backdrop-filter: blur(20px) saturate(150%);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    overflow: hidden;
}

.studio-project-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 56px;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: background 120ms ease;
}

.studio-project-row:last-child {
    border-bottom: none;
}

.studio-project-row:hover {
    background: rgba(255, 255, 255, 0.03);
}

.studio-project-row.is-processing {
    box-shadow: inset 3px 0 0 var(--studio-accent-dim);
}

.studio-project-row__title-cell {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.studio-project-row__name {
    flex: 1;
    min-width: 0;
    font-family: "Manrope", "Rubik", sans-serif;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--studio-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.studio-project-row__type {
    flex-shrink: 0;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--studio-text-secondary);
    background: rgba(255, 255, 255, 0.04);
}

.studio-project-row__type--studio {
    border-color: rgba(114, 255, 215, 0.22);
    color: rgba(114, 255, 215, 0.88);
    background: rgba(114, 255, 215, 0.07);
}

.studio-project-row__type--process {
    border-color: rgba(140, 170, 255, 0.22);
    color: rgba(180, 198, 255, 0.92);
    background: rgba(130, 150, 255, 0.08);
}

.studio-project-row__actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* ── Project Menu ── */

.studio-project-menu {
    position: relative;
}

.studio-project-menu__toggle {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
}

.studio-project-menu__panel {
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    min-width: 160px;
    padding: 4px;
    display: grid;
    gap: 2px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-overlay);
    box-shadow: var(--studio-shadow);
    z-index: 15;
}

.studio-project-menu__panel button,
.studio-project-menu__panel a {
    min-height: 32px;
    padding: 0 12px;
    text-align: left;
    border: none;
    border-radius: var(--studio-radius-xs);
    background: transparent;
    color: var(--studio-text);
    cursor: pointer;
    font: inherit;
    font-size: 0.84rem;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.studio-project-menu__panel button:hover,
.studio-project-menu__panel a:hover {
    background: var(--studio-bg-hover);
}

.studio-project-menu__panel .is-danger {
    color: #f08080;
}

/* ── Create Project Modal ── */

.studio-project-type-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.studio-project-type-card {
    display: grid;
    gap: 8px;
    padding: 16px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    text-align: left;
    cursor: pointer;
    transition: border-color 120ms ease, background 120ms ease;
}

.studio-project-type-card:hover {
    border-color: rgba(196, 154, 108, 0.3);
    background: rgba(196, 154, 108, 0.04);
}

.studio-project-type-card--studio:hover {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.03);
}

.studio-project-type-card__label {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--studio-text-dim);
}

.studio-project-type-card strong {
    font-size: 0.96rem;
    line-height: 1.35;
}

/* ═══════════════ DAW PAGE ═══════════════ */

/* Full-width project layout: timeline uses remaining viewport; do not cap at a fixed max width. */
.studio-shell.studio-daw-page {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 16px 16px 32px;
    box-sizing: border-box;
}

.studio-daw-page {
    position: relative;
}

/* Ambient background glow that makes glassmorphism pop */
.studio-daw-page::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse at 16% 42%, rgba(114, 255, 215, 0.04) 0%, transparent 52%),
        radial-gradient(ellipse at 84% 22%, rgba(90, 80, 160, 0.025) 0%, transparent 48%),
        radial-gradient(ellipse at 50% 90%, rgba(114, 255, 215, 0.02) 0%, transparent 45%),
        #040406;
    pointer-events: none;
}

.studio-daw-mobile-notice {
    display: none;
    padding: 28px;
    border-radius: var(--studio-radius-lg);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-raised);
}

.studio-daw-mobile-notice h1 {
    margin: 8px 0;
    font-size: clamp(1.6rem, 5vw, 2.2rem);
}

.studio-daw-mobile-notice p {
    margin: 0;
    color: var(--studio-text-secondary);
}

.studio-daw-app {
    display: grid;
    gap: 8px;
}

/* ── Transport ── */

.studio-daw-transport {
    position: sticky;
    top: 84px;
    z-index: 8;
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 14px;
    overflow-x: auto;
    overflow-y: visible;
    scrollbar-width: thin;
    border-radius: var(--studio-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(180deg, rgba(16, 18, 24, 0.92) 0%, rgba(2, 2, 4, 0.94) 100%);
    backdrop-filter: blur(20px) saturate(160%);
    box-shadow: 0 8px 36px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.studio-daw-transport__group {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 6px;
    min-width: 0;
}

.studio-daw-transport__group--lead {
    flex: 1 1 0;
    justify-content: flex-start;
}

.studio-daw-transport__group--bpm {
    flex: 0 0 auto;
}

.studio-daw-transport__group--actions {
    flex: 1 1 0;
    justify-content: flex-end;
}

.studio-daw-field--bpm {
    width: 76px;
    text-align: center;
}

.studio-daw-field--bpm span {
    display: block;
    text-align: center;
}

.studio-daw-field--bpm input {
    text-align: center;
    width: 100%;
}

.studio-daw-track-target {
    display: grid;
    gap: 4px;
    min-width: 0;
    max-width: min(132px, 26vw);
    flex-shrink: 1;
}

.studio-daw-track-target span {
    font-size: 0.64rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--studio-text-dim);
}

.studio-daw-track-target strong {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.82rem;
}

/* Record button states (shared via data attribute) */
[data-transport-record].is-recording {
    background: #e06c50;
    border-color: #e06c50;
    color: #fff;
    animation: pulse-record 1.2s ease infinite;
}

[data-transport-record].is-busy {
    opacity: 0.85;
    pointer-events: none;
}

[data-transport-record].is-busy svg path:last-child {
    transform-origin: center;
    animation: studio-spin 0.75s linear infinite;
}

.studio-daw-field {
    display: grid;
    gap: 6px;
    min-width: 0;
}

.studio-daw-field span {
    font-size: 0.64rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--studio-text-dim);
}

.studio-daw-field input,
.studio-daw-field select {
    min-height: 32px;
    padding: 0 10px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    font-size: 0.84rem;
}

.studio-daw-field--compact {
    width: 72px;
}

.studio-daw-field--slider {
    width: 144px;
    max-width: min(144px, 22vw);
    min-width: 96px;
    flex-shrink: 1;
}

.studio-daw-timecode {
    display: grid;
    gap: 5px;
    min-width: 88px;
}

.studio-daw-timecode span {
    font-size: 0.64rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--studio-text-dim);
}

.studio-daw-timecode strong {
    font-family: "Rubik", monospace, sans-serif;
    font-size: 0.94rem;
    letter-spacing: 0.02em;
}

.studio-daw-inline-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.studio-daw-inline-title > span {
    display: none;
}

.studio-daw-inline-title > button {
    min-height: 32px;
    padding: 0 12px;
    border: 1px solid transparent;
    border-radius: var(--studio-radius-xs);
    background: transparent;
    color: var(--studio-text);
    font-size: 0.96rem;
    font-weight: 700;
    cursor: pointer;
}

.studio-daw-inline-title > button:hover {
    border-color: var(--studio-border);
    background: var(--studio-bg-hover);
}

.studio-daw-inline-title__actions {
    display: flex;
    gap: 6px;
}

/* ── DAW Body: Inspector + Track Panels + Arrangement ── */

.studio-daw-body {
    display: grid;
    grid-template-columns: var(--studio-inspector-width) var(--studio-panel-width) minmax(0, 1fr);
    gap: 2px;
    min-height: calc(100vh - 200px);
    border-radius: var(--studio-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: #000000;
    overflow: hidden;
    box-shadow: 0 8px 48px rgba(0, 0, 0, 0.75);
}

/* ── Inspector (left sidebar, selected track details) ── */

.studio-daw-inspector {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    background: #000000;
    overflow: hidden;
}

.studio-daw-inspector__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    border-top: 1px solid rgba(114, 255, 215, 0.12);
    min-height: 44px;
    background: rgba(114, 255, 215, 0.02);
}

.studio-daw-inspector__header span {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--studio-text-dim);
}

.studio-daw-inspector__empty {
    display: grid;
    place-items: center;
    padding: 32px 16px;
    text-align: center;
    color: var(--studio-text-dim);
    font-size: 0.84rem;
}

.studio-daw-inspector__scroll {
    overflow-x: hidden;
    overflow-y: auto;
    padding: 12px;
}

.studio-daw-inspector__scroll::-webkit-scrollbar {
    width: 6px;
}

.studio-daw-inspector__scroll::-webkit-scrollbar-thumb {
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.08);
}

/* Inspector track detail sections */
.studio-inspector-section {
    display: grid;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--studio-border);
}

.studio-inspector-section:last-child {
    border-bottom: none;
}

.studio-inspector-section__label {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--studio-text-dim);
}

/* ── Track Panels (center column, mini controls) ── */

.studio-daw-sidebar {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    background: #000000;
    overflow: hidden;
}

.studio-daw-sidebar__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    min-height: 44px;
}

.studio-daw-sidebar__header-right {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.studio-daw-sidebar__header-right strong {
    font-size: 1rem;
    font-variant-numeric: tabular-nums;
    min-width: 1.25ch;
    text-align: right;
}

.studio-daw-sidebar__header .studio-section-label::before {
    display: none;
}

.studio-daw-sidebar__viewport {
    position: relative;
    min-height: 0;
    overflow: hidden;
}

.studio-daw-sidebar__inner {
    position: absolute;
    inset: 0 0 auto;
    display: grid;
    gap: 0;
    will-change: transform;
}

.studio-daw-sidebar__inner.is-track-reordering {
    user-select: none;
}

/* ── Track Card (mini panel) ── */

.studio-daw-sidebar .studio-track-card {
    height: var(--studio-track-row-height);
    min-height: var(--studio-track-row-height);
    max-height: var(--studio-track-row-height);
    box-sizing: border-box;
    overflow: visible;
}

.studio-track-card {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 6px;
    padding: 10px 10px 12px;
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    cursor: pointer;
    transition: background 80ms ease, border-left-color 80ms ease;
}

.studio-track-card:hover {
    background: rgba(255, 255, 255, 0.025);
}

.studio-track-card.is-selected {
    background: rgba(114, 255, 215, 0.035);
    border-left: 2px solid var(--studio-accent);
    box-shadow: inset 2px 0 12px rgba(114, 255, 215, 0.04);
}

.studio-track-card__title {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 8px;
    width: 100%;
    min-width: 0;
}

.studio-track-card__drag-handle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 28px;
    padding: 0;
    border: 1px solid transparent;
    border-radius: var(--studio-radius-xs);
    background: transparent;
    color: rgba(255, 255, 255, 0.38);
    cursor: grab;
    touch-action: none;
    transition: color 120ms ease, border-color 120ms ease, background 120ms ease;
}

.studio-track-card__drag-handle:hover {
    color: rgba(255, 255, 255, 0.74);
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
}

.studio-track-card__drag-handle:active,
.studio-track-card__drag-handle:focus-visible {
    color: rgba(255, 255, 255, 0.82);
    border-color: rgba(255, 184, 77, 0.28);
    background: rgba(255, 184, 77, 0.08);
    outline: none;
}

.studio-track-card__drag-handle svg {
    pointer-events: none;
}

.studio-track-card__header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    min-width: 0;
}

.studio-track-card__header-actions {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 4px;
    min-width: 0;
    width: 100%;
}

/* Native color input is wide by default; keep toolbar on one row in the narrow (~210px) track column */
.studio-track-card__header-actions input[type="color"] {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-xs);
    background: transparent;
    cursor: pointer;
    box-sizing: border-box;
}

.studio-track-card__header-actions input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.studio-track-card__header-actions input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.studio-track-card__header-actions input[type="color"]::-moz-color-swatch {
    border: none;
    border-radius: 2px;
}

.studio-track-card__name {
    display: block;
    width: 100%;
    min-width: 0;
    margin: 0;
}

.studio-track-card__name input {
    box-sizing: border-box;
    width: 100%;
    min-height: 28px;
    padding: 4px 8px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid transparent;
    background: transparent;
    color: var(--studio-text);
    font-weight: 600;
    font-size: 0.78rem;
    line-height: 1.25;
}

.studio-track-card__name input:focus {
    border-color: var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-track-card--placeholder {
    border: 1px dashed rgba(255, 184, 77, 0.36);
    border-radius: var(--studio-radius-md);
    background: rgba(255, 184, 77, 0.08);
    box-shadow: inset 0 0 0 1px rgba(255, 184, 77, 0.08);
    pointer-events: none;
}

.studio-track-card--placeholder::before,
.studio-track-card--placeholder::after {
    display: none;
}

.studio-track-card.is-track-dragging {
    position: absolute;
    left: 0;
    right: 0;
    z-index: 8;
    cursor: grabbing;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(18, 22, 30, 0.96), rgba(8, 10, 16, 0.94));
    border: 1px solid rgba(255, 184, 77, 0.32);
    border-left-width: 2px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(255, 184, 77, 0.08);
}

.studio-track-card.is-track-dragging .studio-track-card__drag-handle {
    cursor: grabbing;
}

body.studio-track-reorder-active,
body.studio-track-reorder-active * {
    cursor: grabbing !important;
}

body.studio-effect-window-resizing,
body.studio-effect-window-resizing * {
    cursor: ns-resize !important;
    user-select: none !important;
}

body.studio-effect-window-dragging,
body.studio-effect-window-dragging * {
    cursor: move !important;
    user-select: none !important;
}

.studio-track-card__toggle {
    flex-shrink: 0;
    min-height: 24px;
    min-width: 24px;
    padding: 0 6px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    cursor: pointer;
    font-size: 0.72rem;
    font-weight: 700;
}

.studio-track-card__toggle.is-active {
    color: var(--studio-bg-base);
    border-color: var(--studio-accent);
    background: var(--studio-accent);
}

.studio-track-card__clone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 24px;
    min-width: 24px;
    padding: 0;
    border-radius: var(--studio-radius-xs);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: transparent;
    color: rgba(255, 255, 255, 0.56);
    cursor: pointer;
}

.studio-track-card__clone:hover {
    border-color: rgba(255, 255, 255, 0.24);
    color: rgba(255, 255, 255, 0.82);
}

.studio-track-card__delete {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 24px;
    min-width: 24px;
    padding: 0;
    border-radius: var(--studio-radius-xs);
    border: 1px solid rgba(255, 107, 107, 0.32);
    background: transparent;
    color: rgba(255, 170, 170, 0.88);
    cursor: pointer;
    flex-shrink: 0;
}

.studio-track-card__delete:hover {
    border-color: rgba(255, 120, 120, 0.55);
    color: #ffc9c9;
}

.studio-track-card__meters {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    padding-top: 0;
}

.studio-track-card__meters--knobs {
    display: flex;
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 4px;
}

.studio-track-card__meters--knobs > div {
    flex: 1;
    min-width: 0;
    display: flex;
    justify-content: center;
}

.studio-track-card__meters--knobs .studio-effect-knob {
    padding: 2px 0 0;
    border: none;
    background: transparent;
    width: 100%;
    max-width: 72px;
}

.studio-track-card__meters--knobs .studio-effect-knob__label {
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--studio-text-dim);
}

.studio-track-card__meters--knobs .studio-effect-knob__dial {
    width: 52px;
    height: 52px;
    margin: 0 auto;
}

.studio-track-card__meters--knobs .studio-effect-knob__value {
    font-size: 0.62rem;
    line-height: 1.2;
}

.studio-track-card__meters .studio-daw-field {
    gap: 5px;
}

.studio-track-card__meters .studio-daw-field input[type="range"] {
    width: 100%;
    min-width: 0;
}

.studio-track-card__meters .studio-daw-field span {
    font-size: 0.6rem;
}

.studio-track-card__meters input[type="range"],
.studio-daw-field--slider input[type="range"] {
    min-height: auto;
    padding: 0;
    border: 0;
    background: transparent;
    accent-color: var(--studio-accent);
}

/* Model / effects / reference only live in the inspector — hide inside the track mini-panel column */
.studio-daw-sidebar [data-track-model-field],
.studio-daw-sidebar [data-track-effects-section],
.studio-daw-sidebar [data-track-reference-section] {
    display: none !important;
}

/* ── Inspector: track effects & model styling ── */

.studio-track-effects {
    display: grid;
    gap: 6px;
}

.studio-track-effects__head {
    display: flex;
    align-items: center;
    gap: 6px;
}

.studio-track-effects__head span,
.studio-track-reference__head span {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--studio-text-dim);
}

.studio-track-effects__list {
    display: grid;
    gap: 4px;
}

.studio-track-effects__empty {
    padding: 10px;
    border-radius: var(--studio-radius-sm);
    border: 1px dashed var(--studio-border-strong);
    color: var(--studio-text-dim);
    font-size: 0.82rem;
}

.studio-track-effect-row {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) 28px auto;
    gap: 4px;
    align-items: center;
    padding: 6px 8px;
    border-radius: var(--studio-radius-sm);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--studio-border);
    font-size: 0.82rem;
}

.studio-track-effect-row.is-disabled {
    opacity: 0.35;
}

.studio-track-effect-row__pill {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    min-height: 24px;
    padding: 0 8px;
    border-radius: var(--studio-radius-xs);
    background: rgba(114, 255, 215, 0.08);
    color: var(--studio-text);
    font-weight: 600;
    font-size: 0.78rem;
}

.studio-track-effect-row__control,
.studio-track-effect-row__order button,
.studio-track-reference__clear {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    min-height: 28px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    cursor: pointer;
    font-size: 0.78rem;
}

.studio-track-effect-row__order {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity 100ms ease;
}

.studio-track-effect-row__control {
    opacity: 0;
    transition: opacity 100ms ease;
}

.studio-track-effect-row:hover .studio-track-effect-row__order,
.studio-track-effect-row:hover .studio-track-effect-row__control {
    opacity: 1;
}

/* ── Track Reference ── */

.studio-track-reference {
    display: grid;
    gap: 8px;
}

.studio-track-reference__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.studio-track-reference__import {
    min-height: 28px;
    padding: 0 10px;
    font-size: 0.76rem;
}

.studio-track-reference__trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 34px;
    padding: 0 12px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.04);
    color: var(--studio-text);
    font: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 120ms ease, border-color 120ms ease;
    box-sizing: border-box;
    word-break: break-word;
}

.studio-track-reference__trigger:hover:not(:disabled) {
    border-color: rgba(114, 255, 215, 0.3);
    background: rgba(114, 255, 215, 0.08);
}

.studio-track-reference__trigger:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.studio-track-reference__meta {
    font-size: 0.8rem;
    color: var(--studio-text-secondary);
    overflow-wrap: break-word;
    word-break: break-word;
}

.studio-track-reference__actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ── Arrangement ── */

.studio-daw-arrangement {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    background: #000000;
    overflow: hidden;
}

.studio-daw-ruler {
    height: 44px;
    border-bottom: 1px solid var(--studio-border);
    background: #000000;
}

.studio-daw-ruler canvas {
    display: block;
    width: 100%;
    height: 44px;
}

.studio-daw-timeline-shell {
    position: relative;
    min-height: 0;
}

.studio-daw-scroll-host {
    position: absolute;
    inset: 0;
    overflow: auto;
}

.studio-daw-scroll-host::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.studio-daw-scroll-host::-webkit-scrollbar-thumb {
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.08);
}

.studio-daw-timeline-shell canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* ── Context Menu ── */

.studio-daw-context-menu {
    position: fixed;
    z-index: 30;
    display: grid;
    gap: 2px;
    min-width: 160px;
    padding: 4px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-overlay);
    box-shadow: var(--studio-shadow);
}

.studio-daw-context-menu button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 32px;
    padding: 0 12px;
    border-radius: var(--studio-radius-xs);
    border: 0;
    background: transparent;
    color: var(--studio-text);
    text-align: left;
    cursor: pointer;
    font-size: 0.84rem;
}

.studio-daw-context-menu button kbd {
    font-family: inherit;
    font-size: 0.72rem;
    color: var(--studio-text-muted);
    opacity: 0.6;
}

.studio-daw-context-menu button:hover {
    background: var(--studio-bg-hover);
}

.studio-daw-context-menu button.is-danger {
    color: #f08080;
}

.studio-daw-context-menu__sep {
    height: 1px;
    margin: 2px 8px;
    background: var(--studio-border);
}

/* ── DAW Modals ── */

.studio-daw-modal-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 6px;
}

.studio-export-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 10px;
    padding: 12px 14px;
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
}

.studio-export-status a {
    color: var(--studio-accent);
    font-weight: 600;
    font-size: 0.88rem;
}

/* ── Effect Editor Window ── */

.studio-effect-window {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 1000;
    pointer-events: none;
    --studio-effect-window-height: 420px;
}

.studio-effect-window__backdrop {
    display: none;
}

.studio-effect-window__frame {
    position: absolute;
    left: 0;
    top: 0;
    width: min(720px, calc(100vw - 24px));
    height: clamp(320px, var(--studio-effect-window-height, 420px), 100%);
    max-height: 100%;
    max-width: calc(100vw - 24px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: var(--studio-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: linear-gradient(165deg, rgba(18, 21, 29, 0.98) 0%, rgba(6, 8, 12, 0.96) 100%);
    backdrop-filter: blur(24px) saturate(160%);
    box-shadow: var(--studio-shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    pointer-events: auto;
}

.studio-effect-window__resize-handle {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 16px;
    border: 0;
    padding: 0;
    background: transparent;
    cursor: ns-resize;
    z-index: 3;
}

.studio-effect-window__resize-handle::after {
    content: "";
    position: absolute;
    bottom: 5px;
    left: 50%;
    width: 64px;
    height: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    transform: translateX(-50%);
    transition: background 120ms ease;
}

.studio-effect-window__resize-handle:hover::after,
.studio-effect-window.is-resizing .studio-effect-window__resize-handle::after {
    background: rgba(255, 184, 77, 0.48);
}

.studio-effect-window__titlebar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 18px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0));
    flex-shrink: 0;
    cursor: move;
    user-select: none;
}

.studio-effect-window__titlecopy {
    display: grid;
    gap: 4px;
    min-width: 0;
}

.studio-effect-window__eyebrow {
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--studio-text-dim);
}

.studio-effect-window__titlecopy h2 {
    margin: 0;
    font-family: "Manrope", "Rubik", sans-serif;
    font-size: 1.18rem;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--studio-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.studio-effect-window__subtitle {
    display: block;
    min-height: 1.2em;
    font-size: 0.82rem;
    color: var(--studio-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.studio-effect-window__title-actions {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
    padding-left: 12px;
    flex-shrink: 0;
}

.studio-effect-window__content {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px 16px 18px;
    overflow: hidden;
}

.studio-effect-window.is-dragging .studio-effect-window__frame {
    box-shadow: 0 20px 56px rgba(0, 0, 0, 0.58), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.studio-effect-window.is-fullscreen {
    display: grid;
    place-items: center;
    padding: max(8px, env(safe-area-inset-top, 0px)) max(10px, env(safe-area-inset-right, 0px))
        max(8px, env(safe-area-inset-bottom, 0px)) max(10px, env(safe-area-inset-left, 0px));
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(12px) saturate(140%);
    pointer-events: auto;
}

.studio-effect-window.is-fullscreen .studio-effect-window__backdrop {
    display: block;
    position: absolute;
    inset: 0;
}

.studio-effect-window.is-fullscreen .studio-effect-window__frame {
    position: relative;
    left: auto;
    top: auto;
    width: min(680px, calc(100vw - 20px));
    height: min(88vh, calc(100dvh - 16px));
    max-height: min(88vh, calc(100dvh - 16px));
}

.studio-effect-window.is-fullscreen .studio-effect-window__resize-handle {
    display: none;
}

.studio-effect-window.is-fullscreen .studio-effect-window__titlebar {
    cursor: default;
}

.studio-effect-modal__dialog {
    width: min(100%, 680px);
    max-height: min(90vh, calc(100dvh - 40px));
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.studio-effect-modal__content {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.studio-effect-modal__body {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.studio-effect-window .studio-modal__actions,
.studio-effect-modal__actions {
    flex-shrink: 0;
    margin-top: 0;
    padding-top: 6px;
    gap: 6px;
}

/* Compact controls inside effect modal (fit more on screen) */
.studio-effect-window .studio-effect-section {
    gap: 10px;
}

.studio-effect-window .studio-effect-controls--sectioned {
    gap: 10px;
}

.studio-effect-window .studio-effect-param-panel {
    padding: 8px 10px;
}

.studio-effect-window .studio-effect-param-panel__title {
    margin-bottom: 6px;
    font-size: 0.62rem;
}

.studio-effect-window .studio-effect-param-panel__controls {
    grid-template-columns: repeat(auto-fit, minmax(104px, 1fr));
    gap: 8px;
}

.studio-effect-window .studio-effect-knob,
.studio-effect-window .studio-effect-slider,
.studio-effect-window .studio-effect-toggle {
    padding: 8px 6px;
}

.studio-effect-window .studio-effect-knob {
    gap: 4px;
}

.studio-effect-window .studio-effect-knob__label {
    font-size: 0.7rem;
    line-height: 1.2;
}

.studio-effect-window .studio-effect-knob__dial {
    width: 58px;
    height: 58px;
}

.studio-effect-window .studio-effect-knob__value {
    font-size: 0.7rem;
}

.studio-effect-window .studio-effect-eq-wrap {
    padding: 8px 10px;
}

.studio-effect-window .studio-effect-eq {
    max-height: min(150px, 28vh);
    width: 100%;
    height: auto;
}

.studio-effect-window .studio-track-effect-reference {
    position: relative;
    z-index: 1;
    gap: 8px;
    padding: 10px 12px;
    max-height: min(200px, 30vh);
    overflow-y: auto;
    flex-shrink: 0;
}

.studio-effect-window .studio-effect-reference-dropzone {
    min-height: 72px;
    padding: 10px 12px;
    font-size: 0.8rem;
}

.studio-effect-modal__dirty {
    display: inline-flex;
    align-items: center;
    min-height: 22px;
    padding: 0 8px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid rgba(196, 154, 108, 0.2);
    background: rgba(196, 154, 108, 0.08);
    color: var(--studio-warm);
    font-size: 0.76rem;
    font-weight: 600;
}

.studio-track-effect-reference {
    display: grid;
    gap: 10px;
    padding: 14px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-track-effect-reference__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.studio-track-effect-reference__head strong {
    display: block;
    margin-top: 6px;
    font-size: 0.86rem;
    line-height: 1.45;
}

.studio-track-effect-reference__actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.studio-effect-reference-dropzone {
    position: relative;
    z-index: 2;
    display: grid;
    gap: 8px;
    place-content: center;
    min-height: 112px;
    padding: 16px 14px;
    border-radius: var(--studio-radius-md);
    border: 1px dashed rgba(255, 255, 255, 0.18);
    background: rgba(0, 0, 0, 0.4);
    color: var(--studio-text-secondary);
    text-align: center;
    font-size: 0.86rem;
    cursor: pointer;
    transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.studio-effect-reference-dropzone:hover:not(.is-disabled):not([hidden]) {
    border-color: rgba(114, 255, 215, 0.45);
    background: rgba(114, 255, 215, 0.06);
    box-shadow: inset 0 0 0 1px rgba(114, 255, 215, 0.08);
}

.studio-effect-reference-dropzone.is-dragover {
    border-color: var(--studio-accent);
    background: rgba(114, 255, 215, 0.1);
}

.studio-effect-reference-dropzone.is-disabled {
    opacity: 0.42;
    cursor: not-allowed;
    pointer-events: none;
}

.studio-effect-reference-dropzone__title {
    font-weight: 600;
    color: var(--studio-text);
    font-size: 0.88rem;
}

.studio-effect-reference-dropzone__hint {
    font-size: 0.78rem;
    line-height: 1.5;
    max-width: 48ch;
    margin: 0 auto;
}

.studio-track-effect-reference__waveform {
    min-height: 48px;
}

.studio-waveform--inspector {
    margin-top: 10px;
    min-height: 56px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    overflow: hidden;
}

.studio-waveform--inspector .studio-waveform__canvas {
    height: 56px;
}

.studio-effect-modal__tabs {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.studio-effect-modal__body::-webkit-scrollbar {
    width: 8px;
}

.studio-effect-modal__body::-webkit-scrollbar-thumb {
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.12);
}

.studio-effect-modal__body::-webkit-scrollbar-track {
    background: transparent;
}

.studio-effect-modal__tab,
.studio-effect-tab {
    min-height: 30px;
    padding: 0 12px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    font: inherit;
    font-size: 0.8rem;
    cursor: pointer;
}

.studio-effect-modal__tab.is-active,
.studio-effect-tab.is-active {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.06);
    color: var(--studio-text);
}

.studio-effect-modal__placeholder {
    margin: 0;
    padding: 14px 16px;
    border-radius: var(--studio-radius-sm);
    border: 1px dashed var(--studio-border-strong);
    background: var(--studio-bg-input);
    color: var(--studio-text-secondary);
    line-height: 1.55;
    font-size: 0.86rem;
}

.studio-effect-section {
    display: grid;
    gap: 14px;
}

.studio-effect-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.studio-effect-controls--sectioned {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.studio-effect-param-panel {
    padding: 12px 14px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: rgba(0, 0, 0, 0.14);
}

.studio-effect-param-panel__title {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--studio-text-muted, var(--studio-text-secondary));
    margin-bottom: 10px;
    font-weight: 600;
}

.studio-effect-param-panel__controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.studio-effect-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px;
}

.studio-effect-grid--sectioned {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.studio-effect-grid--sectioned .studio-effect-param-panel__controls {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.studio-effect-eq-wrap {
    padding: 14px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-effect-eq {
    width: 100%;
    display: block;
}

.studio-effect-eq__grid {
    stroke: rgba(255, 255, 255, 0.06);
    stroke-width: 1;
}

.studio-effect-eq__curve {
    fill: none;
    stroke: var(--studio-accent);
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.studio-effect-eq__handle {
    fill: var(--studio-warm);
    stroke: var(--studio-bg-base);
    stroke-width: 2;
    cursor: pointer;
}

.studio-effect-knob,
.studio-effect-slider,
.studio-effect-toggle {
    padding: 12px 10px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-effect-knob {
    display: grid;
    justify-items: center;
    gap: 8px;
}

.studio-effect-knob__label {
    font-size: 0.78rem;
    color: var(--studio-text-secondary);
    text-align: center;
}

.studio-effect-knob__dial {
    width: 80px;
    height: 80px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    cursor: ns-resize;
    outline: none;
}

.studio-effect-knob__dial svg {
    width: 100%;
    height: 100%;
}

.studio-effect-knob__track {
    fill: none;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 6;
    stroke-linecap: round;
}

.studio-effect-knob__arc {
    fill: none;
    stroke: var(--studio-accent);
    stroke-width: 6;
    stroke-linecap: round;
}

.studio-effect-knob.is-changed .studio-effect-knob__arc {
    stroke: var(--studio-warm);
}

.studio-effect-knob__core {
    fill: var(--studio-bg-surface);
}

.studio-effect-knob__handle {
    fill: var(--studio-text);
}

.studio-effect-knob__value {
    font-size: 0.78rem;
    color: var(--studio-text-secondary);
}

.studio-effect-slider {
    display: grid;
    gap: 8px;
}

.studio-effect-slider span {
    font-size: 0.76rem;
    color: var(--studio-text-secondary);
}

.studio-effect-slider strong {
    font-size: 0.82rem;
}

.studio-effect-slider input[type="range"] {
    width: 100%;
    accent-color: var(--studio-accent);
}

.studio-effect-slider__value {
    color: var(--studio-text-secondary);
    font-size: 0.76rem;
}

.studio-effect-slider.is-changed,
.studio-effect-toggle.is-on {
    border-color: rgba(196, 154, 108, 0.2);
}

.studio-effect-toggle {
    width: 100%;
    min-height: 80px;
    display: grid;
    gap: 6px;
    align-content: center;
    text-align: left;
    color: var(--studio-text);
    font: inherit;
    font-size: 0.84rem;
    cursor: pointer;
}

.studio-effect-toggle span:last-child {
    color: var(--studio-text-secondary);
    font-size: 0.78rem;
}

/* ═══════════════ PROCESS PROJECT ═══════════════ */

.studio-process-breadcrumb {
    margin: 0 0 18px;
}

.studio-project-settings-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding: 12px 0 4px;
    margin-top: 4px;
    border-top: 1px solid var(--studio-border);
}

.studio-project-settings-meta div {
    display: grid;
    gap: 4px;
}

.studio-project-settings-meta span {
    font-size: 0.72rem;
    color: var(--studio-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.studio-project-settings-meta strong {
    font-size: 0.88rem;
    color: var(--studio-text);
}

.studio-process-main,
.studio-process-panel,
.studio-process-toolbar,
.studio-process-toolbar__status,
.studio-dropzone-card,
.studio-process-actions,
.studio-process-progress__head,
.studio-results-header,
.studio-result-row__main,
.studio-model-picker__section,
.studio-models-header__copy,
.studio-model-row__copy {
    display: grid;
    gap: 12px;
}

.studio-process-progress__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.studio-inline-editor__label,
.studio-process-toolbar__label,
.studio-upload-item__meta span,
.studio-model-row__copy span {
    font-size: 0.76rem;
    color: var(--studio-text-secondary);
}

.studio-inline-editor {
    display: grid;
    gap: 8px;
}

.studio-inline-editor__display {
    width: 100%;
    text-align: left;
    padding: 10px 12px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    cursor: pointer;
    font-size: 0.9rem;
}

.studio-inline-editor__display--title {
    font-size: clamp(1.5rem, 2.5vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
}

.studio-inline-editor__form {
    display: grid;
    gap: 8px;
}

.studio-inline-editor__form input,
.studio-inline-editor__form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    font: inherit;
}

.studio-inline-editor__actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.studio-process-main {
    gap: 16px;
}

.studio-process-panel,
.studio-model-row,
.studio-dropzone-card,
.studio-model-picker__panel,
.studio-result-row {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--studio-radius-lg);
    background: linear-gradient(180deg, rgba(18, 20, 28, 0.82) 0%, rgba(8, 9, 12, 0.88) 100%);
    backdrop-filter: blur(18px) saturate(150%);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.studio-process-panel {
    padding: 18px;
}

.studio-process-panel--upload {
    z-index: 2;
}

.studio-process-toolbar {
    grid-template-columns: minmax(240px, 360px) minmax(0, 1fr);
    align-items: start;
}

/* ── Model Picker ── */

.studio-model-picker {
    position: relative;
    display: grid;
    gap: 8px;
    z-index: 5;
}

.studio-model-picker__trigger {
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 0 14px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    font: inherit;
    font-size: 0.86rem;
    cursor: pointer;
}

.studio-model-picker__caret {
    width: 8px;
    height: 8px;
    border-right: 1.5px solid var(--studio-text-secondary);
    border-bottom: 1.5px solid var(--studio-text-secondary);
    transform: rotate(45deg) translateY(-2px);
}

.studio-model-picker__panel {
    position: absolute;
    left: 0;
    top: calc(100% + 6px);
    z-index: 20;
    width: min(620px, calc(100vw - 32px));
    padding: 14px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 14px;
    align-items: start;
}

.studio-model-picker__heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.studio-model-picker__heading h3,
.studio-dropzone-card__head h3,
.studio-results-header h2 {
    margin: 0;
    font-size: 0.98rem;
}

.studio-model-picker__heading a {
    color: var(--studio-accent-dim);
    text-decoration: none;
    font-size: 0.82rem;
}

.studio-model-picker__list {
    display: grid;
    gap: 6px;
    align-content: start;
    align-items: start;
}

.studio-model-picker__list--scroll {
    max-height: 280px;
    overflow-y: auto;
    padding-right: 4px;
}

.studio-model-option-row {
    width: 100%;
    min-height: 48px;
    padding: 10px 12px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: transparent;
    color: var(--studio-text);
    text-align: left;
    font: inherit;
    font-size: 0.84rem;
    cursor: pointer;
    display: grid;
    gap: 2px;
    align-content: start;
    justify-items: start;
}

.studio-model-option-row:hover {
    background: var(--studio-bg-hover);
}

.studio-model-option-row.is-selected {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.04);
}

.studio-model-option-row span {
    color: var(--studio-text-dim);
    font-size: 0.74rem;
}

.studio-model-picker__section {
    align-self: start;
    align-content: start;
}

.studio-model-option-row__title {
    color: var(--studio-text);
    font-size: 0.86rem;
    font-weight: 600;
    line-height: 1.25;
}

.studio-model-option-row__meta {
    color: var(--studio-text-dim);
    font-size: 0.74rem;
    line-height: 1.25;
}

.studio-model-picker__empty {
    margin: 0;
    color: var(--studio-text-dim);
    font-size: 0.82rem;
}

/* ── Upload / Dropzone ── */

.studio-upload-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.studio-upload-layout[data-mode="one_to_many"] {
    grid-template-columns: 1fr;
}

.studio-upload-layout[data-mode="one_to_many"] [data-dropzone-card="reference"] {
    order: 1;
}

.studio-upload-layout[data-mode="one_to_many"] [data-dropzone-card="input"] {
    order: 2;
}

.studio-dropzone-card {
    padding: 14px;
}

.studio-dropzone-card__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.studio-dropzone-card__head span {
    color: var(--studio-text-dim);
    font-size: 0.76rem;
}

.studio-dropzone {
    min-height: 140px;
    display: grid;
    place-items: center;
    padding: 20px;
    border: 1px dashed var(--studio-border-strong);
    border-radius: var(--studio-radius-md);
    background: var(--studio-bg-input);
    color: var(--studio-text-secondary);
    text-align: center;
    cursor: pointer;
    font-size: 0.86rem;
    transition: border-color 120ms ease, background 120ms ease;
}

.studio-dropzone.is-dragover {
    border-color: var(--studio-accent-dim);
    background: rgba(114, 255, 215, 0.04);
}

.studio-upload-list,
.studio-results-list,
.studio-models-list {
    display: grid;
    gap: 6px;
}

.studio-upload-list {
    max-height: 240px;
    overflow-y: auto;
}

.studio-upload-actions {
    display: block;
    margin-top: 10px;
}

.studio-upload-actions .studio-secondary-button {
    width: 100%;
    min-height: 30px;
    height: 30px;
    padding: 0 12px;
    white-space: nowrap;
}

.studio-upload-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 100px auto;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
    font-size: 0.84rem;
}

.studio-upload-item__meta {
    display: grid;
    gap: 2px;
}

.studio-upload-item__meta strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.84rem;
}

.studio-upload-item__progress {
    height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.studio-upload-item__progress-value,
.studio-progress-bar__value {
    height: 100%;
    width: 0;
    background: var(--studio-accent);
}

.studio-upload-item__remove {
    width: 28px;
    height: 28px;
    border: 0;
    border-radius: var(--studio-radius-xs);
    background: transparent;
    color: var(--studio-text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
}

.studio-upload-item__remove:hover {
    color: #f08080;
}

.studio-process-actions,
.studio-results-header {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
}

.studio-results-header__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.studio-secondary-button--danger-outline {
    border-color: rgba(255, 107, 107, 0.45);
    color: #f08080;
}

.studio-secondary-button--danger-outline:hover {
    border-color: rgba(255, 120, 120, 0.7);
    background: rgba(255, 80, 80, 0.12);
}

.studio-results-select-host {
    position: relative;
    user-select: none;
}

.studio-results-marquee {
    position: fixed;
    z-index: 5;
    border: 1px dashed rgba(114, 255, 215, 0.75);
    background: rgba(114, 255, 215, 0.12);
    pointer-events: none;
    box-sizing: border-box;
}

.studio-result-row.is-selected {
    border-radius: var(--studio-radius-md);
    outline: 2px solid var(--studio-accent);
    outline-offset: 2px;
}

.studio-process-actions__copy,
.studio-result-row__duration {
    margin: 0;
    color: var(--studio-text-secondary);
    font-size: 0.86rem;
}

.studio-process-actions__copy.is-error {
    color: var(--studio-coral);
}

.studio-progress-bar {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

/* ── Result Row ── */

.studio-result-row {
    display: block;
    padding: 16px 18px;
    cursor: default;
}

.studio-result-row__main {
    gap: 14px;
}

.studio-waveform {
    min-height: 48px;
}

.studio-waveform--lab {
    position: relative;
    min-height: 76px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    overflow: hidden;
}

.studio-waveform__canvas {
    display: block;
    width: 100%;
    height: 76px;
    vertical-align: middle;
}

.studio-result-row__under-wave {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 2px;
}

.studio-result-row__player {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* ── Studio audio widget (process results) ────────────────────────────── */

.studio-audio-widget {
    display: grid;
    grid-template-columns: auto minmax(160px, 1fr) auto;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: min(520px, 100%);
    padding: 8px 10px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-audio-widget .studio-result-pause-icon {
    display: none;
}

.studio-audio-widget.is-playing .studio-result-play-icon {
    display: none;
}

.studio-audio-widget.is-playing .studio-result-pause-icon {
    display: inline;
}

.studio-audio-widget__timeline {
    position: relative;
    height: 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
    cursor: pointer;
}

.studio-audio-widget__fill {
    position: absolute;
    inset: 0;
    width: 0%;
    background: linear-gradient(90deg, var(--studio-accent-bright), var(--studio-accent));
}

.studio-audio-widget__seek {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    appearance: none;
    background: transparent;
    margin: 0;
    cursor: pointer;
}

.studio-audio-widget__seek::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 999px;
    background: var(--studio-accent);
    border: 2px solid rgba(15, 17, 24, 0.9);
    box-shadow: 0 0 0 3px var(--studio-accent-soft);
}

.studio-audio-widget__seek::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 999px;
    background: var(--studio-accent);
    border: 2px solid rgba(15, 17, 24, 0.9);
    box-shadow: 0 0 0 3px var(--studio-accent-soft);
}

.studio-audio-widget__time {
    font-size: 0.8rem;
    font-variant-numeric: tabular-nums;
    color: var(--studio-text-secondary);
    white-space: nowrap;
}

.studio-audio-widget__time-sep {
    opacity: 0.65;
    margin: 0 6px;
}

.studio-audio-widget audio {
    display: none;
}

.studio-result-row__duration {
    font-size: 0.82rem;
    font-variant-numeric: tabular-nums;
    color: var(--studio-text-secondary);
}

.studio-result-row__icon-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.studio-mode-tabs {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.studio-mode-tabs__button {
    min-height: 32px;
    padding: 0 12px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    font: inherit;
    font-size: 0.82rem;
    cursor: pointer;
}

.studio-mode-tabs__button.is-active {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.05);
    color: var(--studio-text);
}

/* ═══════════════ MODELS LIST ═══════════════ */

.studio-models-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 20px;
    align-items: center;
}

.studio-model-row {
    padding: 14px 16px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
}

.studio-model-row__main {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.studio-model-row__graph {
    min-height: 80px;
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
}

.studio-model-row__title {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.studio-model-row__copy p {
    margin: 0;
    color: var(--studio-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: 0.86rem;
}

/* ═══════════════ MODEL EDITOR ═══════════════ */

.studio-model-editor-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 0.38fr);
    gap: 20px;
    align-items: start;
}

.studio-model-editor-header__copy,
.studio-model-editor-header__meta,
.studio-graph-workspace,
.studio-graph-toolbar,
.studio-graph-banner,
.studio-graph-sidebar,
.studio-node-library-group,
.studio-graph-test-panel {
    display: grid;
    gap: 12px;
}

.studio-model-editor-header__meta {
    padding: 16px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-md);
    background: var(--studio-bg-raised);
}

.studio-model-editor-header__meta span {
    font-size: 0.76rem;
    color: var(--studio-text-secondary);
}

.studio-model-editor-header__meta strong {
    display: block;
    margin-top: 2px;
}

.studio-model-editor-header textarea {
    min-height: 80px;
    padding: 10px 12px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    font: inherit;
    resize: vertical;
}

.studio-graph-editor {
    display: grid;
    grid-template-columns: minmax(240px, 0.28fr) minmax(0, 1fr);
    gap: 12px;
    align-items: stretch;
}

.studio-graph-sidebar,
.studio-graph-workspace {
    min-height: 600px;
    padding: 16px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-lg);
    background: var(--studio-bg-raised);
}

.studio-graph-sidebar {
    align-content: start;
    transition: width 140ms ease, min-width 140ms ease, padding 140ms ease, opacity 140ms ease;
}

.studio-graph-sidebar.is-collapsed {
    min-width: 64px;
    width: 64px;
    padding-right: 8px;
    padding-left: 8px;
}

.studio-graph-sidebar.is-collapsed .studio-field,
.studio-graph-sidebar.is-collapsed .studio-graph-sidebar__groups,
.studio-graph-sidebar.is-collapsed .studio-graph-sidebar__header div h2 {
    display: none;
}

.studio-graph-sidebar__header {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 10px;
}

.studio-graph-sidebar__header h2 {
    margin: 4px 0 0;
    font-size: 1rem;
}

.studio-graph-sidebar__groups {
    display: grid;
    gap: 10px;
    max-height: 100%;
    overflow-y: auto;
    padding-right: 2px;
}

.studio-node-library-group {
    padding: 12px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-node-library-group header strong {
    font-size: 0.82rem;
    color: var(--studio-text-secondary);
}

.studio-node-library-group__items {
    display: grid;
    gap: 6px;
}

.studio-node-library-item {
    min-height: 52px;
    padding: 10px 12px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text);
    font: inherit;
    font-size: 0.84rem;
    text-align: left;
    cursor: grab;
    display: grid;
    gap: 2px;
}

.studio-node-library-item:active {
    cursor: grabbing;
}

.studio-node-library-item span {
    color: var(--studio-text-dim);
    font-size: 0.74rem;
}

.studio-graph-toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
}

.studio-graph-toolbar__group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.studio-graph-toolbar__group:last-child {
    justify-content: flex-end;
}

.studio-graph-toolbar .studio-secondary-button[aria-pressed="true"] {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.06);
}

.studio-graph-banner {
    padding: 12px 14px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid rgba(196, 154, 108, 0.15);
    background: rgba(196, 154, 108, 0.04);
}

.studio-legacy-mono-warning {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.studio-legacy-mono-warning__text {
    flex: 1;
    min-width: 0;
}

.studio-legacy-mono-warning .studio-icon-btn {
    flex-shrink: 0;
    margin-top: 2px;
}

.studio-graph-banner [data-graph-errors] p,
.studio-graph-banner [data-graph-warnings] p {
    margin: 0;
    font-size: 0.84rem;
}

.studio-graph-banner [data-graph-errors] {
    color: var(--studio-coral);
}

.studio-graph-banner [data-graph-warnings] {
    color: var(--studio-text-secondary);
}

/* ── Graph Surface ── */

.studio-graph-surface {
    position: relative;
    min-height: 420px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    overflow: hidden;
    background: var(--studio-bg-base);
    cursor: default;
    touch-action: none;
}

.studio-graph-surface::before,
.studio-graph-surface::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.studio-graph-surface::before {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 28px 28px;
}

.studio-graph-surface::after {
    background-image:
        linear-gradient(rgba(114, 255, 215, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(114, 255, 215, 0.04) 1px, transparent 1px);
    background-size: 112px 112px;
}

.studio-graph-surface.is-panning,
.studio-graph-surface.is-pan-mode {
    cursor: grab;
}

.studio-graph-scene,
.studio-graph-svg,
.studio-graph-node-layer,
.studio-graph-edge-actions,
.studio-graph-selection-box {
    position: absolute;
    inset: 0;
}

.studio-graph-scene {
    transform-origin: 0 0;
    will-change: transform;
}

.studio-graph-svg {
    width: 100%;
    height: 100%;
    overflow: visible;
    z-index: 1;
}

.studio-graph-node-layer,
.studio-graph-edge-actions {
    overflow: visible;
}

.studio-graph-node-layer {
    z-index: 2;
    pointer-events: none;
}

.studio-graph-edge-actions {
    z-index: 3;
    pointer-events: none;
}

.studio-graph-selection-box {
    z-index: 4;
    inset: auto;
    border: 1px solid rgba(114, 255, 215, 0.4);
    border-radius: var(--studio-radius-xs);
    background: rgba(114, 255, 215, 0.06);
    pointer-events: none;
}

.studio-graph-selection-status {
    position: absolute;
    right: 14px;
    bottom: 14px;
    padding: 6px 12px;
    border-radius: var(--studio-radius-xs);
    background: rgba(114, 255, 215, 0.08);
    border: 1px solid var(--studio-border-accent);
    color: var(--studio-accent-dim);
    font-size: 0.72rem;
    font-weight: 500;
    pointer-events: none;
    z-index: 6;
    white-space: nowrap;
}

.studio-graph-hint {
    position: absolute;
    left: 14px;
    bottom: 14px;
    display: grid;
    gap: 2px;
    max-width: 360px;
    padding: 10px 12px;
    border-radius: var(--studio-radius-sm);
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--studio-border);
    color: var(--studio-text-secondary);
    font-size: 0.76rem;
    backdrop-filter: blur(8px);
}

.studio-graph-hint strong {
    color: var(--studio-text);
    font-size: 0.78rem;
}

/* ── Graph Nodes ── */

.studio-graph-editor-node {
    position: absolute;
    width: 160px;
    min-height: 72px;
    padding: 0 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-surface);
    box-shadow: var(--studio-shadow-sm);
    user-select: none;
    pointer-events: auto;
}

.studio-graph-editor-node.is-selected {
    border-color: var(--studio-border-accent);
    box-shadow: 0 0 0 1px rgba(114, 255, 215, 0.12), var(--studio-shadow-sm);
}

.studio-graph-editor-node.is-pending {
    border-color: rgba(196, 154, 108, 0.3);
}

.studio-graph-editor-node.is-input,
.studio-graph-editor-node.is-output {
    background: var(--studio-bg-overlay);
}

.studio-graph-editor-node__body {
    width: 100%;
    display: grid;
    gap: 3px;
    cursor: grab;
    text-align: center;
}

.studio-graph-editor-node__body strong {
    font-size: 0.88rem;
}

.studio-graph-editor-node__body span {
    color: var(--studio-text-dim);
    font-size: 0.72rem;
}

.studio-graph-editor-node__port {
    position: absolute;
    top: 50%;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--studio-text);
    background: rgba(114, 255, 215, 0.1);
    transform: translateY(-50%);
    cursor: pointer;
}

.studio-graph-editor-node__port--input {
    left: -8px;
}

.studio-graph-editor-node__port--output {
    right: -8px;
}

.studio-graph-edge {
    fill: none;
    stroke: rgba(114, 255, 215, 0.5);
    stroke-width: 2;
    stroke-linecap: round;
}

.studio-graph-edge.is-selected {
    stroke: var(--studio-warm);
}

.studio-graph-edge.is-hovered {
    stroke: rgba(255, 255, 255, 0.7);
}

.studio-graph-edge--preview {
    stroke: rgba(255, 255, 255, 0.3);
    stroke-dasharray: 6 6;
}

.studio-graph-edge-hitbox {
    fill: none;
    stroke: transparent;
    stroke-width: 16;
    cursor: pointer;
}

.studio-graph-conversion path {
    fill: var(--studio-warm);
    stroke: var(--studio-bg-base);
    stroke-width: 1;
}

.studio-graph-edge-action {
    position: absolute;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-overlay);
    color: var(--studio-text);
    cursor: pointer;
    box-shadow: var(--studio-shadow-sm);
    pointer-events: auto;
    font-size: 0.78rem;
}

.studio-graph-test-panel {
    padding: 16px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-raised);
}

.studio-result-row--test {
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
}

/* ═══════════════ ABOUT PAGE ═══════════════ */

.studio-about-page {
    position: relative;
}

.studio-about-hero {
    position: relative;
    min-height: 72vh;
    display: grid;
    place-items: center;
    text-align: center;
    overflow: hidden;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
}

.studio-about-hero__content {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 16px;
    justify-items: center;
    max-width: 760px;
}

.studio-about-hero__title {
    margin: 0;
    display: grid;
    gap: 4px;
    font-family: "Manrope", "Rubik", sans-serif;
    font-size: clamp(3.4rem, 10vw, 7rem);
    line-height: 0.92;
    letter-spacing: -0.06em;
}

.studio-about-hero__title-gradient {
    --studio-title-reveal: 100%;
    background: linear-gradient(120deg, var(--studio-text) 0%, var(--studio-accent) 50%, var(--studio-warm) 100%);
    background-size: 240% 100%;
    background-position: 0% 50%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    clip-path: inset(0 calc(100% - var(--studio-title-reveal)) 0 0);
    will-change: clip-path, background-position;
}

.studio-about-hero__title-gradient::after {
    content: "";
    position: absolute;
    inset: -12% -18%;
    background: linear-gradient(
        110deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.0) 38%,
        rgba(255, 226, 160, 0.55) 48%,
        rgba(255, 255, 255, 0.0) 58%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: translateX(-65%);
    opacity: 0;
    mix-blend-mode: screen;
    pointer-events: none;
    filter: blur(0.2px);
    will-change: transform, opacity;
}

.studio-about-hero.is-hero-revealing .studio-about-hero__title-gradient::after {
    opacity: 0.8;
    animation: studio-title-shimmer 1.6s ease-in-out forwards;
}

.studio-about-hero__subtitle {
    margin: 0;
    font-size: clamp(0.96rem, 1.6vw, 1.14rem);
    line-height: 1.6;
    color: var(--studio-text-secondary);
    max-width: 38rem;
}

.studio-about-hero__backdrop {
    position: absolute;
    inset: -10% -8% 0;
    overflow: hidden;
    pointer-events: none;
}

.studio-about-hero__orb {
    position: absolute;
    width: min(36vw, 400px);
    aspect-ratio: 1;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
}

.studio-about-hero__orb--left {
    left: 8%;
    top: 14%;
    background: radial-gradient(circle, rgba(114, 255, 215, 0.2), transparent 70%);
}

.studio-about-hero__orb--right {
    right: 4%;
    bottom: 12%;
    background: radial-gradient(circle, rgba(196, 154, 108, 0.16), transparent 70%);
}

.studio-about-hero__waves {
    position: absolute;
    inset: 18% -18% auto;
    width: 140%;
    height: 50%;
    stroke: rgba(255, 255, 255, 0.06);
    stroke-width: 1;
    stroke-linecap: round;
    animation: studio-wave-drift 20s linear infinite alternate;
    opacity: 1;
    transform: none;
    filter: drop-shadow(0 0 10px rgba(255, 184, 77, 0.08));
}

.studio-about-hero__waves path:last-child {
    stroke: rgba(114, 255, 215, 0.1);
}

@keyframes studio-title-shimmer {
    0% {
        transform: translateX(-65%);
        opacity: 0;
    }
    30% {
        opacity: 0.85;
    }
    100% {
        transform: translateX(65%);
        opacity: 0;
    }
}

/* ── Tier Table ── */

.studio-tier-table__title {
    margin: 18px 0 12px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--studio-text);
}

.studio-tier-table {
    display: grid;
    gap: 4px;
}

.studio-tier-table__row {
    display: grid;
    grid-template-columns: minmax(200px, 1.7fr) repeat(3, minmax(0, 1fr));
    gap: 4px;
}

.studio-tier-table__cell {
    min-height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 14px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-raised);
    text-align: center;
    font-size: 0.86rem;
}

.studio-tier-table__cell--feature {
    justify-content: flex-start;
    text-align: left;
    font-weight: 600;
    color: var(--studio-text);
}

.studio-tier-table__row--head .studio-tier-table__cell {
    min-height: 48px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--studio-text-secondary);
    background: var(--studio-bg-input);
}

.studio-tier-table__cell--highlight {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.03);
}

/* ── Fade-up scroll entrance (Studio About) ── */

.studio-fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
    will-change: opacity, transform;
}

.studio-fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .studio-fade-up {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ── Feature Sections ── */

.studio-feature {
    display: grid;
    grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
    gap: 24px;
    align-items: center;
    margin-top: 48px;
}

.studio-feature--reverse {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
}

.studio-feature--reverse .studio-feature__copy {
    order: 2;
}

.studio-feature--reverse .studio-feature__demo {
    order: 1;
}

.studio-demo {
    position: relative;
    overflow: hidden;
    min-height: 280px;
    padding: 20px;
    border-radius: var(--studio-radius-xl);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-raised);
}

.studio-demo__toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.studio-demo__mode,
.studio-project-demo-card button,
.studio-project-menu__panel button,
.studio-vst-knob__dial,
.studio-graph-node {
    font: inherit;
}

.studio-demo__mode {
    min-height: 30px;
    padding: 0 12px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    font-size: 0.82rem;
    cursor: pointer;
    transition: border-color 100ms ease, background 100ms ease;
}

.studio-demo__mode.is-active {
    border-color: var(--studio-border-strong);
    background: var(--studio-bg-overlay);
    color: var(--studio-text);
}

.studio-demo--graph {
    min-height: 280px;
}

.studio-demo--builder {
    min-height: 280px;
    padding: 16px;
}

.studio-mini-builder {
    display: grid;
    gap: 12px;
}

.studio-mini-builder__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.studio-mini-builder__title {
    display: grid;
    gap: 2px;
}

.studio-mini-builder__title strong {
    font-size: 0.92rem;
    letter-spacing: 0.01em;
}

.studio-mini-builder__hint {
    font-size: 0.78rem;
    line-height: 1.4;
    color: var(--studio-text-secondary);
    text-align: right;
    max-width: 220px;
}

.studio-mini-builder__library {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.studio-mini-builder__library .studio-chain-lib-item {
    min-height: 44px;
    padding: 8px 10px;
}

.studio-mini-builder__library .studio-chain-lib-item__text strong {
    font-size: 0.8rem;
}

.studio-mini-builder__library .studio-chain-lib-item__text span {
    font-size: 0.7rem;
}

.studio-chain-list--mini {
    padding: 16px 18px;
    min-height: 0;
    border-radius: var(--studio-radius-md);
    align-items: stretch;
}

.studio-chain-anchor--mini {
    max-width: 100%;
    padding: 10px 12px;
}

.studio-chain-list--mini .studio-chain-anchor,
.studio-chain-list--mini .studio-chain-step,
.studio-chain-list--mini .studio-chain-empty,
.studio-chain-list--mini .studio-chain-step--placeholder {
    width: 100%;
    max-width: none;
}

.studio-chain-anchor--mini .studio-chain-anchor__icon {
    width: 32px;
    height: 32px;
}

.studio-mini-chain {
    width: 100%;
    display: grid;
    gap: 10px;
    align-items: stretch;
    margin: 12px 0;
}

.studio-mini-chain .studio-chain-step {
    width: 100%;
    max-width: none;
}

.studio-mini-chain .studio-chain-empty {
    width: 100%;
    max-width: none;
}

.studio-mini-chain .studio-chain-step__num {
    min-width: 28px;
}

.studio-mini-chain .studio-chain-step--placeholder {
    border-style: dashed;
    border-color: rgba(255, 255, 255, 0.22);
    background: transparent;
    box-shadow: none;
    opacity: 0.7;
}

.studio-mini-builder__actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.studio-mini-builder__saved {
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.08);
    color: var(--studio-accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    animation: studio-mini-saved-in 240ms ease-out, studio-mini-confirm-pulse 900ms ease-out;
}

.studio-mini-builder__saved.is-pulsing {
    animation: studio-mini-saved-in 240ms ease-out, studio-mini-confirm-pulse 900ms ease-out;
}

@keyframes studio-mini-saved-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes studio-mini-confirm-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(114, 255, 215, 0.25); }
    60%  { box-shadow: 0 0 0 10px rgba(114, 255, 215, 0); }
    100% { box-shadow: 0 0 0 0 rgba(114, 255, 215, 0); }
}

@media (max-width: 860px) {
    .studio-mini-builder__library {
        grid-template-columns: 1fr;
    }

    .studio-mini-builder__hint {
        text-align: left;
        max-width: none;
    }
}

.studio-demo__graph-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.studio-demo__graph-lines path {
    fill: none;
    stroke: rgba(114, 255, 215, 0.35);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-dasharray: 6 6;
}

.studio-graph-node {
    position: absolute;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 88px;
    min-height: 44px;
    padding: 0 14px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-surface);
    color: var(--studio-text);
    box-shadow: var(--studio-shadow-sm);
    cursor: grab;
    user-select: none;
    font-size: 0.84rem;
    font-weight: 600;
}

.studio-graph-node.is-active {
    border-color: var(--studio-border-accent);
}

.studio-graph-node--input {
    left: 30px;
    top: 132px;
}

.studio-graph-node--eq {
    left: 160px;
    top: 88px;
}

.studio-graph-node--drive {
    left: 286px;
    top: 180px;
}

.studio-graph-node--reverb {
    left: 392px;
    top: 86px;
}

.studio-graph-node--output {
    right: 28px;
    top: 198px;
}

.studio-demo__graph-caption {
    position: absolute;
    right: 18px;
    bottom: 16px;
    display: grid;
    gap: 2px;
    text-align: right;
    color: var(--studio-text-dim);
    font-size: 0.76rem;
}

.studio-demo__graph-caption strong {
    font-size: 0.84rem;
    color: var(--studio-text-secondary);
}

.studio-batch-queue {
    display: grid;
    gap: 8px;
    margin: 20px 0 16px;
}

.studio-batch-item {
    padding: 12px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-batch-item__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.86rem;
}

.studio-batch-item__bar {
    height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.studio-batch-item__bar span {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: var(--studio-accent);
}

.studio-demo__action {
    margin-top: auto;
}

.studio-demo--vst {
    display: grid;
    align-content: center;
    gap: 24px;
}

.studio-vst-knobs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.studio-vst-knob {
    display: grid;
    justify-items: center;
    gap: 8px;
    padding: 14px 10px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-vst-knob__dial {
    position: relative;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 1px solid var(--studio-border);
    background: radial-gradient(circle at 35% 32%, rgba(255, 255, 255, 0.08), transparent 40%), var(--studio-bg-surface);
    box-shadow: inset 0 -8px 16px rgba(0, 0, 0, 0.2);
    cursor: ns-resize;
}

.studio-vst-knob__indicator {
    position: absolute;
    left: 50%;
    top: 10px;
    width: 3px;
    height: 22px;
    border-radius: 2px;
    background: var(--studio-accent);
    transform: translateX(-50%);
    transform-origin: 50% 26px;
}

.studio-vst-meter {
    position: relative;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.04);
    overflow: hidden;
}

.studio-vst-meter span {
    display: block;
    width: 62%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--studio-accent), var(--studio-warm));
}

.studio-demo--projects {
    display: grid;
    gap: 14px;
}

.studio-demo__mini-action {
    margin-left: auto;
}

.studio-project-demo-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.studio-project-demo-card {
    display: grid;
    align-content: space-between;
    gap: 12px;
    min-height: 140px;
    padding: 14px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
    font-size: 0.86rem;
}

.studio-project-demo-card[data-state="archived"] {
    opacity: 0.45;
}

.studio-project-demo-card strong {
    font-size: 0.92rem;
}

.studio-project-demo-card span {
    color: var(--studio-text-secondary);
}

.studio-project-demo-card button {
    justify-self: start;
    min-height: 28px;
    padding: 0 10px;
    border-radius: var(--studio-radius-xs);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text-secondary);
    font-size: 0.78rem;
    cursor: pointer;
}

/* ── DAW Spotlight ── */

.studio-daw-spotlight {
    position: relative;
    margin-top: 64px;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    display: grid;
    justify-items: center;
    gap: 18px;
    padding: clamp(44px, 7vw, 84px) 0 clamp(44px, 6vw, 76px);
    overflow: hidden;
}

.studio-daw-spotlight__media-wrap {
    position: relative;
    z-index: 1;
    width: min(100% - 32px, 980px);
    perspective: 1200px;
}

.studio-daw-spotlight__media {
    margin: 0;
    aspect-ratio: 16 / 9;
    border-radius: var(--studio-radius-xl);
    overflow: hidden;
    transform-style: preserve-3d;
    box-shadow:
        0 28px 48px rgba(0, 0, 0, 0.34),
        0 0 0 1px rgba(255, 255, 255, 0.05),
        0 0 42px rgba(255, 184, 77, 0.14),
        0 0 70px rgba(255, 226, 160, 0.09);
    will-change: transform;
}

.studio-daw-spotlight__image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--studio-radius-xl);
    border: none;
}

.studio-daw-spotlight__copy {
    position: relative;
    z-index: 1;
    width: min(100% - 32px, 980px);
    text-align: center;
    display: grid;
    gap: 12px;
}

.studio-daw-spotlight__copy h2 {
    margin: 0;
    font-family: "Manrope", "Rubik", sans-serif;
    font-size: clamp(2.2rem, 4.8vw, 3.6rem);
    line-height: 1.02;
    letter-spacing: -0.05em;
    background: linear-gradient(110deg, #fff2c6 0%, #ffcf76 32%, #ffb84d 58%, #fff2c6 100%);
    background-size: 180% 100%;
    background-position: 50% 50%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow:
        0 0 18px rgba(255, 184, 77, 0.22),
        0 0 38px rgba(255, 226, 160, 0.12);
    filter: drop-shadow(0 12px 28px rgba(255, 184, 77, 0.08));
}

.studio-daw-spotlight__sub {
    margin: 0 auto;
    max-width: 52rem;
    color: rgba(226, 232, 240, 0.72);
    font-size: clamp(1rem, 1.6vw, 1.16rem);
    line-height: 1.65;
}

.studio-daw-spotlight__desc {
    margin: 0 auto;
    max-width: 56rem;
    color: rgba(226, 232, 240, 0.58);
    font-size: clamp(0.96rem, 1.5vw, 1.08rem);
    line-height: 1.75;
}

/* ── CTA Section ── */

.studio-cta {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(240px, 0.56fr);
    gap: 24px;
    margin-top: 52px;
    padding: 24px;
    border-radius: var(--studio-radius-xl);
    border: 1px solid var(--studio-border-accent);
    background: var(--studio-bg-raised);
}

.studio-cta__list {
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 8px;
}

.studio-cta__list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    color: var(--studio-text-secondary);
    font-size: 0.88rem;
}

.studio-cta__list li::before {
    content: "•";
    color: var(--studio-accent-dim);
}

.studio-cta__purchase {
    display: grid;
    align-content: center;
    justify-items: start;
    gap: 16px;
    padding: 20px;
    border-radius: var(--studio-radius-lg);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-cta__price {
    font-family: "Manrope", "Rubik", sans-serif;
    font-size: clamp(2.2rem, 4.5vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -0.04em;
}

.studio-cta__price span {
    margin-left: 6px;
    font-size: 0.88rem;
    letter-spacing: 0;
    color: var(--studio-text-secondary);
}

/* ── FAQ ── */

.studio-faq {
    display: grid;
    gap: 6px;
}

.studio-faq__item {
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-raised);
    overflow: hidden;
}

.studio-faq__item summary {
    position: relative;
    padding: 16px 48px 16px 18px;
    list-style: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.92rem;
}

.studio-faq__item summary::-webkit-details-marker {
    display: none;
}

.studio-faq__item summary::after {
    content: "+";
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.1rem;
    color: var(--studio-accent-dim);
}

.studio-faq__item[open] summary::after {
    content: "−";
}

.studio-faq__item p {
    margin: 0;
    padding: 0 18px 16px;
    color: var(--studio-text-secondary);
    line-height: 1.6;
    font-size: 0.88rem;
}

/* ── Placeholder Pages ── */

.studio-process-placeholder {
    padding-top: 24px;
}

.studio-process-placeholder__card {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.8fr);
    gap: 20px;
    padding: 22px;
    border-radius: var(--studio-radius-lg);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-raised);
}

.studio-process-placeholder__meta {
    display: grid;
    gap: 14px;
    align-content: start;
    padding: 16px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border);
    background: var(--studio-bg-input);
}

.studio-process-placeholder__meta-label {
    display: block;
    margin-bottom: 2px;
    font-size: 0.76rem;
    color: var(--studio-text-secondary);
}

.studio-editor-placeholder-page .studio-process-placeholder__card {
    grid-template-columns: minmax(0, 1fr) auto;
}

/* ═══════════════ RESPONSIVE ═══════════════ */

@media (max-width: 1560px) {
    .studio-daw-transport {
        gap: 6px;
        padding: 8px 12px;
    }

    .studio-daw-transport__group {
        gap: 5px;
    }

    .studio-daw-field--bpm {
        width: 70px;
    }
}

@media (max-width: 1440px) {
    .studio-daw-body {
        --studio-inspector-width: 240px;
        --studio-panel-width: 180px;
    }
}

@media (max-width: 1279px) {
    .studio-daw-mobile-notice {
        display: grid;
    }

    .studio-daw-app {
        display: none;
    }
}

@media (max-width: 1100px) {
    .studio-process-toolbar,
    .studio-model-editor-header,
    .studio-graph-editor,
    .studio-models-header,
    .studio-result-row,
    .studio-editor-placeholder-page .studio-process-placeholder__card {
        grid-template-columns: 1fr;
    }

    .studio-model-picker__panel {
        width: min(100vw - 32px, 620px);
    }

    .studio-feature,
    .studio-feature--reverse,
    .studio-cta,
    .studio-process-placeholder__card {
        grid-template-columns: 1fr;
    }

    .studio-feature--reverse .studio-feature__copy,
    .studio-feature--reverse .studio-feature__demo {
        order: initial;
    }
}

@media (max-width: 900px) {
    .studio-upload-layout,
    .studio-model-picker__panel,
    .studio-model-row__main,
    .studio-graph-toolbar,
    .studio-process-actions,
    .studio-results-header,
    .studio-project-type-grid,
    .studio-daw-modal-grid {
        grid-template-columns: 1fr;
    }

    .studio-tier-table__row {
        grid-template-columns: 1.2fr repeat(3, minmax(80px, 1fr));
    }

    .studio-project-demo-grid,
    .studio-vst-knobs {
        grid-template-columns: 1fr;
    }

    .studio-daw-spotlight__image {
        min-height: clamp(300px, 64vw, 500px);
    }

    .studio-effect-window__titlebar {
        padding-right: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .studio-daw-spotlight__media {
        transform: none !important;
    }
}

@media (max-width: 760px) {
    .studio-nav-shell {
        width: min(100% - 20px, 1360px);
        padding-top: 10px;
    }

    .studio-nav-bar {
        grid-template-columns: auto minmax(0, 1fr) auto;
        padding: 8px 10px;
    }

    .studio-nav-title {
        font-size: 0.88rem;
        letter-spacing: 0.04em;
    }

    .studio-shell {
        width: min(100% - 20px, 1240px);
        padding-bottom: 56px;
    }

    .studio-shell.studio-daw-page {
        width: 100%;
        max-width: none;
        padding-left: 12px;
        padding-right: 12px;
    }

    .studio-about-hero {
        min-height: 60vh;
    }

    .studio-tier-table__head {
        display: none;
    }

    .studio-tier-table__row {
        grid-template-columns: 1fr;
    }

    .studio-tier-table__cell {
        justify-content: flex-start;
        text-align: left;
    }

    .studio-demo {
        padding: 16px;
    }

    .studio-project-row {
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .studio-project-row__actions {
        width: 100%;
        justify-content: flex-end;
    }

    .studio-upload-item {
        grid-template-columns: 1fr;
    }

    .studio-model-row {
        grid-template-columns: 1fr;
    }

    .studio-model-row__main {
        gap: 10px;
    }

    .studio-graph-toolbar__group:last-child {
        justify-content: flex-start;
    }

    .studio-graph-hint {
        right: 12px;
        max-width: none;
    }

    .studio-sidebar {
        width: min(280px, calc(100vw - 20px));
        padding: 16px 12px;
    }

    .studio-effect-window.is-fullscreen .studio-effect-window__frame {
        width: 100%;
    }

    .studio-effect-controls {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .studio-nav-title {
        font-size: 0.82rem;
    }

    .studio-about-hero__title {
        font-size: clamp(2.8rem, 15vw, 4.4rem);
    }

    .studio-dashboard-header,
    .studio-dashboard-toolbar,
    .studio-modal__actions {
        align-items: stretch;
    }

    .studio-sort-control {
        width: 100%;
        justify-content: space-between;
    }

    .studio-sort-control select,
    .studio-primary-button,
    .studio-secondary-button,
    .studio-danger-button {
        width: 100%;
    }

    .studio-toast-stack {
        left: 10px;
        right: 10px;
        bottom: 10px;
    }

    .studio-toast {
        max-width: none;
        width: 100%;
    }

    .studio-tutorial-panel {
        padding: 20px 16px;
    }
}

@media (max-width: 980px) {
    .studio-tutorials-layout {
        grid-template-columns: 1fr;
    }

    .studio-tutorials-sidebar {
        position: static;
    }

    .studio-tutorials-nav {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

@media (max-width: 640px) {
    .studio-tutorials-nav {
        grid-template-columns: 1fr;
    }
}

/* ═══════════════ ANIMATIONS ═══════════════ */

@keyframes studio-spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes studio-wave-drift {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-3%);
    }
}

@media (prefers-reduced-motion: reduce) {
    .studio-about-hero__waves,
    .studio-dashboard-loading__spinner {
        animation: none;
    }

    .studio-primary-button,
    .studio-secondary-button,
    .studio-danger-button,
    .studio-demo__mode,
    .studio-filter-tabs__button,
    .studio-project-menu__toggle,
    .studio-modal,
    .studio-modal__dialog {
        transition: none;
    }
}

/* ═══════════════════════════════════════════════════════════════
   CHAIN EDITOR
   ─────────────────────────────────────────────────────────────
   Replaces the old node-graph canvas with a vertical linear
   chain builder. Audio clearly flows top → bottom.
   ═══════════════════════════════════════════════════════════════ */

/* ── Page layout ──────────────────────────────────────────── */

.studio-chain-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
}

/* ── Library sidebar ─────────────────────────────────────── */

.studio-chain-sidebar {
    position: sticky;
    top: 24px;
    display: grid;
    gap: 12px;
    align-content: start;
    padding: 18px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-lg);
    background: var(--studio-bg-raised);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
}

.studio-chain-sidebar__header {
    display: grid;
    gap: 6px;
}

.studio-chain-sidebar__header h2 {
    margin: 4px 0 0;
    font-size: 1rem;
}

.studio-chain-sidebar__header p {
    margin: 0;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--studio-text-secondary);
}

.studio-chain-insert-hint {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 10px;
    border-radius: var(--studio-radius-sm);
    background: rgba(114, 255, 215, 0.07);
    border: 1px solid var(--studio-border-accent);
    color: var(--studio-accent);
    font-size: 0.78rem;
    line-height: 1.45;
    animation: chain-hint-in 160ms ease;
}

@keyframes chain-hint-in {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.studio-chain-insert-hint svg {
    flex-shrink: 0;
}

.studio-chain-sidebar [data-library-search] {
    width: 100%;
    min-height: 34px;
    padding: 0 10px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-sm);
    background: var(--studio-bg-input);
    color: var(--studio-text);
    font: inherit;
    font-size: 0.84rem;
}

.studio-chain-sidebar [data-library-search]:focus {
    outline: none;
    border-color: var(--studio-border-accent);
}

/* ── Library groups & items ──────────────────────────────── */

.studio-chain-library-groups {
    display: grid;
    gap: 8px;
}

.studio-chain-lib-group {
    display: grid;
    gap: 3px;
}

.studio-chain-lib-group__title {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 6px 6px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--studio-text-secondary);
}

.studio-chain-lib-group__title svg {
    color: var(--studio-text-dim);
    flex-shrink: 0;
}

.studio-chain-lib-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-height: 46px;
    padding: 9px 12px;
    border-radius: var(--studio-radius-sm);
    border: 1px solid var(--studio-border);
    background: transparent;
    color: var(--studio-text);
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: border-color 100ms ease, background 100ms ease;
}

.studio-chain-lib-item:hover {
    border-color: rgba(255, 255, 255, 0.18);
    background: var(--studio-bg-hover);
}

.studio-chain-lib-item:active {
    cursor: grabbing;
}

.studio-chain-lib-item__text {
    flex: 1;
    min-width: 0;
}

.studio-chain-lib-item__text strong {
    display: block;
    font-size: 0.84rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.studio-chain-lib-item__text span {
    display: block;
    font-size: 0.73rem;
    color: var(--studio-text-dim);
    margin-top: 1px;
}

.studio-chain-lib-item__add {
    flex-shrink: 0;
    color: var(--studio-text-dim);
    transition: color 100ms ease;
}

.studio-chain-lib-item:hover .studio-chain-lib-item__add {
    color: var(--studio-accent);
}

.studio-chain-lib-empty {
    margin: 0;
    padding: 12px 6px;
    font-size: 0.82rem;
    color: var(--studio-text-secondary);
    text-align: center;
}

/* ── Chain canvas (right column) ─────────────────────────── */

.studio-chain-canvas {
    display: grid;
    gap: 16px;
}

.studio-chain-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 14px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-md);
    background: var(--studio-bg-raised);
}

.studio-chain-toolbar__left,
.studio-chain-toolbar__right {
    display: flex;
    gap: 6px;
}

/* ── Flow label ──────────────────────────────────────────── */

.studio-chain-body {
    display: grid;
    gap: 4px;
}

.studio-chain-flow-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    align-self: start;
    justify-self: center;
    padding: 4px 12px;
    border-radius: 999px;
    border: 1px solid var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.04);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--studio-accent-dim);
    user-select: none;
    pointer-events: none;
}

.studio-chain-flow-label svg {
    flex-shrink: 0;
}

/* ── Chain list container ────────────────────────────────── */

.studio-chain-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 24px 40px 24px;
    min-height: 420px;
    border: 1px solid var(--studio-border);
    border-radius: var(--studio-radius-lg);
    background: var(--studio-bg-raised);
}

/* ── INPUT / OUTPUT anchors ──────────────────────────────── */

.studio-chain-anchor {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 480px;
    padding: 12px 16px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border-strong);
    background: var(--studio-bg-overlay);
    user-select: none;
}

.studio-chain-anchor--input {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.04);
}

.studio-chain-anchor--output {
    border-color: rgba(196, 154, 108, 0.25);
    background: rgba(196, 154, 108, 0.04);
}

.studio-chain-anchor__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--studio-radius-sm);
    flex-shrink: 0;
}

.studio-chain-anchor--input  .studio-chain-anchor__icon { color: var(--studio-accent); background: rgba(114, 255, 215, 0.08); }
.studio-chain-anchor--output .studio-chain-anchor__icon { color: var(--studio-warm);   background: rgba(196, 154, 108, 0.1); }

.studio-chain-anchor__text {
    flex: 1;
    min-width: 0;
}

.studio-chain-anchor__text strong {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
}

.studio-chain-anchor__text span {
    display: block;
    font-size: 0.75rem;
    color: var(--studio-text-secondary);
    margin-top: 1px;
}

.studio-chain-anchor__badge {
    flex-shrink: 0;
    padding: 2px 7px;
    border-radius: var(--studio-radius-xs);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.studio-chain-anchor--input  .studio-chain-anchor__badge { background: rgba(114, 255, 215, 0.12); color: var(--studio-accent); }
.studio-chain-anchor--output .studio-chain-anchor__badge { background: rgba(196, 154, 108, 0.15); color: var(--studio-warm); }

/* ── Connector (line + insert button between steps) ─────── */

.studio-chain-connector {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 480px;
    padding: 4px 0;
    /* vertical line drawn with ::before */
}

.studio-chain-connector::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(to bottom, var(--studio-border-strong), var(--studio-border-strong));
    border-radius: 1px;
    transition: background 140ms ease;
    z-index: 0;
}

.studio-chain-connector--active::before,
.studio-chain-connector.is-drop-target::before {
    background: linear-gradient(to bottom, var(--studio-accent-dim), rgba(114, 255, 215, 0.2));
}

/* Insert button */

.studio-chain-insert-btn {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin: 10px 0;
    padding: 4px 12px;
    border-radius: 999px;
    border: 1px solid var(--studio-border-strong);
    background: var(--studio-bg-surface);
    color: var(--studio-text-secondary);
    font: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: border-color 120ms ease, background 120ms ease, color 120ms ease;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
}

.studio-chain-connector.is-drop-target .studio-chain-insert-btn {
    opacity: 1;
}

.studio-chain-insert-btn--active,
.studio-chain-connector--active .studio-chain-insert-btn {
    opacity: 1;
    pointer-events: auto;
    border-color: var(--studio-accent);
    background: rgba(114, 255, 215, 0.1);
    color: var(--studio-accent);
    box-shadow: 0 0 0 3px rgba(114, 255, 215, 0.1);
}

.studio-chain-insert-btn:hover:not(.studio-chain-insert-btn--active) {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.05);
    color: var(--studio-text);
}

.studio-chain-insert-btn svg {
    flex-shrink: 0;
}

/* Drop zone highlight */

.studio-chain-connector.is-drop-target {
    padding: 2px 0;
}

.studio-chain-connector.is-drop-target::before {
    width: 3px;
}

.studio-chain-empty.is-drop-target {
    border-color: var(--studio-border-accent);
    background: rgba(114, 255, 215, 0.04);
}

/* ── Effect step card ────────────────────────────────────── */

.studio-chain-step {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    max-width: 480px;
    padding: 12px 14px 12px 10px;
    border-radius: var(--studio-radius-md);
    border: 1px solid var(--studio-border-strong);
    background: var(--studio-bg-surface);
    cursor: default;
    transition: border-color 120ms ease, background 120ms ease, opacity 120ms ease;
    animation: chain-step-in 160ms ease;
}

@keyframes chain-step-in {
    from { opacity: 0; transform: translateY(-6px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0)   scale(1); }
}

.studio-chain-step:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.04);
}

.studio-chain-step--dragging {
    opacity: 0.4;
}

.studio-chain-step__handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: var(--studio-text-dim);
    cursor: grab;
    padding: 0;
    border-radius: var(--studio-radius-xs);
    transition: color 100ms ease, background 100ms ease;
}

.studio-chain-step__handle:hover {
    color: var(--studio-text-secondary);
    background: var(--studio-bg-hover);
}

.studio-chain-step__handle:active {
    cursor: grabbing;
}

.studio-chain-step__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: var(--studio-radius-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--studio-border);
    flex-shrink: 0;
    color: var(--studio-text-secondary);
}

.studio-chain-step__text {
    flex: 1;
    min-width: 0;
}

.studio-chain-step__name {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.studio-chain-step__meta {
    display: block;
    font-size: 0.74rem;
    color: var(--studio-text-secondary);
    margin-top: 2px;
}

.studio-chain-step__num {
    flex-shrink: 0;
    min-width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--studio-radius-xs);
    background: rgba(255, 255, 255, 0.06);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--studio-text-dim);
    letter-spacing: 0.02em;
}

.studio-chain-step__remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    border-radius: var(--studio-radius-xs);
    border: 1px solid transparent;
    background: transparent;
    color: var(--studio-text-dim);
    cursor: pointer;
    padding: 0;
    transition: color 100ms ease, border-color 100ms ease, background 100ms ease;
}

.studio-chain-step__remove:hover {
    color: #f08080;
    border-color: rgba(240, 128, 128, 0.3);
    background: rgba(240, 128, 128, 0.08);
}

/* ── Empty state ─────────────────────────────────────────── */

.studio-chain-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    max-width: 480px;
    padding: 36px 24px;
    border-radius: var(--studio-radius-lg);
    border: 1px dashed var(--studio-border-strong);
    background: transparent;
    text-align: center;
    transition: border-color 120ms ease, background 120ms ease;
}

.studio-chain-empty svg {
    color: var(--studio-text-dim);
}

.studio-chain-empty strong {
    display: block;
    font-size: 0.92rem;
    color: var(--studio-text-secondary);
}

.studio-chain-empty span {
    display: block;
    font-size: 0.8rem;
    color: var(--studio-text-dim);
    max-width: 30ch;
    line-height: 1.55;
}

/* ── Auto-save status indicator ─────────────────────────── */

.studio-autosave-status {
    display: inline-flex;
    align-items: center;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--studio-text-dim);
    transition: color 200ms ease, opacity 200ms ease;
    min-width: 60px;
}

.studio-autosave-status--saving {
    color: var(--studio-text-secondary);
}

.studio-autosave-status--saved {
    color: var(--studio-accent-dim);
}

/* ── Utility ─────────────────────────────────────────────── */

.studio-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 1100px) {
    .studio-chain-layout {
        grid-template-columns: 1fr;
    }

    .studio-chain-sidebar {
        position: static;
        max-height: none;
    }

    .studio-chain-list {
        padding: 20px 16px;
    }
}

@media (max-width: 640px) {
    .studio-chain-toolbar {
        flex-wrap: wrap;
    }

    .studio-chain-toolbar__left,
    .studio-chain-toolbar__right {
        flex: 1;
    }

    .studio-chain-toolbar__right {
        justify-content: flex-end;
    }

    .studio-chain-list {
        padding: 16px 8px;
    }

    .studio-chain-step,
    .studio-chain-anchor,
    .studio-chain-connector {
        max-width: 100%;
    }
}