/* Studio sessions: mirrors demos theme tokens (existing site palette) */
:root {
    --studio-bg: #e5e9df;
    --studio-paper: #f7f5ee;
    --studio-ink: #263b3c;
    --studio-muted: #586b69;
    --studio-line: rgba(65, 86, 80, 0.2);
    --studio-accent: #71856f;
    --studio-accent-dark: #405b52;
    --studio-accent-soft: #536e69;
    --studio-gold: #a77c57;
}

body.studio-sessions-page {
    margin: 0;
    font-family: Inter, system-ui, sans-serif;
    color: var(--studio-ink);
    min-height: 100vh;
    background:
        radial-gradient(circle at 10% 5%, rgba(247, 245, 238, 0.9), transparent 38%),
        radial-gradient(circle at 92% 88%, rgba(174, 189, 192, 0.35), transparent 44%),
        linear-gradient(145deg, transparent 45%, rgba(143, 157, 135, 0.14) 78%),
        var(--studio-bg);
}

.studio-page {
    max-width: 980px;
    margin: 0 auto;
    padding: 1.25rem 1.25rem 3rem;
}

.studio-hero {
    margin-bottom: 1.75rem;
}

.studio-kicker {
    margin: 0 0 0.35rem;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--studio-gold);
    font-weight: 600;
}

.studio-title {
    margin: 0 0 0.45rem;
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 4.5vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--studio-ink);
}

.studio-sub {
    margin: 0;
    color: var(--studio-muted);
    font-size: 1.02rem;
    line-height: 1.55;
    max-width: 36rem;
}

.studio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.8rem;
}

@media (max-width: 720px) {
    .studio-grid {
        grid-template-columns: 1fr;
    }
}

.studio-card {
    position: relative;
    display: grid;
    grid-template-columns: 116px minmax(0, 1fr) auto;
    align-items: center;
    text-decoration: none;
    color: inherit;
    background: linear-gradient(135deg, rgba(250,248,241,.98), rgba(235,239,229,.97));
    border: 1px solid rgba(64,91,82,.2);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 28px rgba(48, 70, 66, 0.10);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.studio-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(48, 70, 66, 0.14);
}

.studio-card-cover {
    position: relative;
    width: 116px;
    height: 116px;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(113, 133, 111, 0.22), transparent 55%),
        linear-gradient(145deg, #314b46 0%, #1d3431 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.studio-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.studio-card-cover-letter {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: #e4c181;
    opacity: 0.95;
    text-shadow: 0 5px 22px rgba(0,0,0,.3);
}
.studio-card-wave { position: absolute; inset: auto 13px 14px; display: flex; height: 20px; align-items: center; justify-content: center; gap: 3px; opacity: .55; }
.studio-card-wave i { width: 3px; border-radius: 4px; background: #b8cabd; }
.studio-card-wave i:nth-child(1), .studio-card-wave i:nth-child(7) { height: 5px; }
.studio-card-wave i:nth-child(2), .studio-card-wave i:nth-child(6) { height: 11px; }
.studio-card-wave i:nth-child(3), .studio-card-wave i:nth-child(5) { height: 17px; }
.studio-card-wave i:nth-child(4) { height: 9px; }

.studio-card-body {
    min-width: 0;
    padding: 1rem 1.15rem;
}

.studio-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem .75rem;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--studio-muted);
    font-weight: 600;
    margin-bottom: 0.35rem;
}
.studio-card-meta span { display: inline-flex; align-items: center; gap: .32rem; }

.studio-card-title {
    margin: 0 0 0.35rem;
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--studio-accent-dark);
}

.studio-card-desc {
    margin: 0;
    color: var(--studio-muted);
    font-size: 0.92rem;
    line-height: 1.45;
}
.studio-card-open { display: inline-flex; align-items: center; gap: .55rem; margin-right: 1.15rem; padding: .65rem .8rem; border: 1px solid rgba(64,91,82,.18); border-radius: 999px; color: #405b52; background: rgba(255,255,255,.45); font-size: .75rem; font-weight: 700; white-space: nowrap; transition: color .2s ease, background .2s ease, transform .2s ease; }
.studio-card:hover .studio-card-open { color: #f8f3e8; background: #405b52; transform: translateX(2px); }

@media (max-width: 620px) {
    .studio-page { padding-inline: .85rem; }
    .studio-hero { margin-bottom: 1.15rem; }
    .studio-card { grid-template-columns: 78px minmax(0, 1fr) 38px; min-height: 88px; border-radius: 13px; }
    .studio-card-cover { width: 78px; height: 100%; min-height: 88px; }
    .studio-card-cover-letter { font-size: 1.8rem; }
    .studio-card-wave { display: none; }
    .studio-card-body { padding: .78rem .8rem; }
    .studio-card-title { font-size: 1.08rem; }
    .studio-card-desc { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; font-size: .8rem; }
    .studio-card-meta { margin-bottom: .22rem; font-size: .61rem; }
    .studio-card-open { width: 32px; height: 32px; box-sizing: border-box; justify-content: center; margin-right: .45rem; padding: 0; }
    .studio-card-open span { display: none; }
}

.studio-empty {
    padding: 2rem 1.25rem;
    text-align: center;
    color: var(--studio-muted);
    background: rgba(247, 245, 238, 0.8);
    border: 1px dashed var(--studio-line);
    border-radius: 18px;
}

.studio-player {
    background: #dfe5dc;
    border: 1px solid rgba(38, 59, 60, 0.28);
    border-radius: 14px;
    box-shadow: 0 18px 42px rgba(38, 59, 60, 0.16);
    overflow: hidden;
}

.studio-player-head {
    padding: 1.25rem 1.35rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    color: #f7f5ee;
    background: linear-gradient(180deg, #344d49, #263b3c);
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

.studio-player-title {
    margin: 0;
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    font-weight: 700;
    color: #f7f5ee;
}

.studio-player-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    color: rgba(247, 245, 238, 0.76);
    font-size: 0.9rem;
    font-weight: 500;
}

.studio-player-back:hover {
    color: #fff;
}

.studio-transport {
    padding: 1rem 1.35rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem 0.85rem;
    border-bottom: 1px solid rgba(38, 59, 60, 0.35);
    background: linear-gradient(180deg, #526b65, #405b52);
}

.studio-btn {
    appearance: none;
    border: 1px solid var(--studio-line);
    background: rgba(247, 245, 238, 0.12);
    color: #f7f5ee;
    border-color: rgba(255, 255, 255, 0.22);
    border-radius: 7px;
    min-height: 42px;
    min-width: 42px;
    padding: 0 0.9rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font: inherit;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.studio-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.38);
}

.studio-btn.is-primary {
    background: #f7f5ee;
    border-color: #f7f5ee;
    color: var(--studio-accent-dark);
}

.studio-btn.is-primary.is-playing {
    background: #c97861;
    border-color: #df9a86;
    color: #fff8ef;
    box-shadow: 0 0 0 4px rgba(201, 120, 97, 0.13), 0 4px 12px rgba(0, 0, 0, 0.2);
}

.studio-btn.is-primary:hover {
    filter: brightness(1.05);
}

.studio-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.studio-time {
    font-variant-numeric: tabular-nums;
    font-size: 0.85rem;
    color: #dff1e7;
    font-weight: 500;
    min-width: 5.5rem;
}

.studio-scrubber-wrap {
    flex: 1 1 180px;
    min-width: 140px;
}

.studio-scrubber {
    width: 100%;
    accent-color: #d7b27d;
    cursor: pointer;
}

.studio-ruler {
    height: 28px;
    padding: 0 1rem 0 1.15rem;
    display: grid;
    grid-template-columns: auto repeat(4, 1fr) auto;
    align-items: end;
    gap: 0;
    color: rgba(247, 245, 238, 0.68);
    background: #293f3d;
    border-bottom: 1px solid rgba(0, 0, 0, 0.32);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.studio-ruler span {
    padding-bottom: 5px;
}

.studio-ruler i {
    height: 9px;
    border-left: 1px solid rgba(247, 245, 238, 0.28);
}

.studio-track-columns {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 70px minmax(150px, 210px);
    gap: 0.65rem 0.9rem;
    padding: 0.42rem 1rem 0.42rem 1.15rem;
    color: rgba(247, 245, 238, 0.72);
    background: #344d49;
    border-bottom: 1px solid rgba(0, 0, 0, 0.28);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.studio-track-columns span:nth-child(2) {
    text-align: center;
}

.studio-tracks {
    list-style: none;
    margin: 0;
    padding: 0;
    background: #d9e0d7;
}

.studio-track {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(150px, 210px);
    gap: 0.65rem 0.9rem;
    align-items: center;
    min-height: 58px;
    padding: 0.55rem 1rem 0.55rem 1.15rem;
    border-top: 1px solid rgba(38, 59, 60, 0.16);
    background: linear-gradient(180deg, rgba(250, 248, 241, 0.88), rgba(233, 237, 228, 0.9));
    transition: opacity 0.15s ease, background 0.15s ease;
}

.studio-track:first-child {
    border-top: 0;
}

.studio-track-color {
    position: absolute;
    inset: 0 auto 0 0;
    width: 6px;
    background: #6f8d80;
}

.studio-track:nth-child(4n + 2) .studio-track-color { background: #a77c57; }
.studio-track:nth-child(4n + 3) .studio-track-color { background: #71856f; }
.studio-track:nth-child(4n + 4) .studio-track-color { background: #7892a0; }

.studio-track.is-solo-muted {
    opacity: 0.48;
}

.studio-track.is-soloed {
    background: linear-gradient(180deg, #fff9e8, #eee5c8);
}

.studio-track-label {
    display: grid;
    grid-template-columns: 1.4rem 36px minmax(0, 1fr);
    align-items: center;
    gap: 0.55rem;
    min-width: 0;
}

.studio-track-number {
    width: 1.6rem;
    color: rgba(38, 59, 60, 0.55);
    font-size: 0.68rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.studio-track-icon {
    width: 34px;
    height: 34px;
    border-radius: 7px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(64, 91, 82, 0.1);
    border: 1px solid rgba(64, 91, 82, 0.18);
    color: var(--studio-accent-dark);
}

.studio-track-copy {
    min-width: 0;
    width: 100%;
    overflow: hidden;
}

.studio-track-name {
    font-weight: 600;
    color: var(--studio-ink);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.studio-track-role {
    margin-top: 0.15rem;
    font-size: 0.75rem;
    color: var(--studio-muted);
    letter-spacing: 0.02em;
}

.studio-track-actions {
    display: flex;
    gap: 0.3rem;
}

.studio-track-btn {
    appearance: none;
    border: 1px solid var(--studio-line);
    background: var(--studio-paper);
    color: var(--studio-muted);
    border-radius: 5px;
    width: 30px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.72rem;
    font-weight: 800;
}

.studio-track-mute.is-active {
    background: #d6a04f;
    border-color: transparent;
    color: #2d332f;
}

.studio-track-solo.is-active {
    background: #e5c24d;
    border-color: #c29a28;
    color: #312b19;
}

.studio-track-btn:hover {
    border-color: rgba(64, 91, 82, 0.28);
    color: var(--studio-accent-dark);
}

.studio-track-edit { display: none; color: #d6ae68; }
.studio-player.is-editing-tracks .studio-track-delete { display: inline-flex; }
.studio-player.is-editing-tracks .studio-track { grid-template-columns: minmax(0, 1fr) 112px minmax(250px, 330px); cursor: grab; }
.studio-player.is-editing-tracks .studio-track.is-dragging { opacity: .45; cursor: grabbing; }
.studio-player.is-editing-tracks .studio-track-icon { outline: 1px dashed rgba(214,174,104,.55); }
.studio-track-delete { display: none; color: #ffc8bf; background: #603731; }
.studio-track-name-input { box-sizing: border-box; display: block; width: 100%; min-width: 0; max-width: 100%; padding: 0; border: 0; outline: 0; color: inherit; background: transparent; font: inherit; font-weight: inherit; }
.studio-track-name-input[readonly] { pointer-events: none; }
.studio-player.is-editing-tracks .studio-track-name-input { padding: .34rem .45rem; border: 1px solid rgba(214,174,104,.3); border-radius: 6px; background: rgba(8,24,22,.35); }
.studio-player.is-editing-tracks .studio-track-name-input:focus { border-color: #d6ae68; box-shadow: 0 0 0 2px rgba(214,174,104,.12); }
.studio-track-icon { border: 0; color: inherit; font: inherit; }
.studio-player.is-editing-tracks button.studio-track-icon { cursor: pointer; }
.studio-track-role-select { position: absolute; z-index: 30; margin: 52px 0 0 60px; padding: .55rem; border: 1px solid rgba(214,174,104,.5); border-radius: 8px; color: #f3f1e8; background: #102220; }
.studio-track.is-saving { opacity: .65; }
.studio-edit-toolbar { display: inline-flex; align-items: center; gap: .35rem; }
.studio-edit-toolbar[hidden] { display: none; }
.studio-edit-toolbar button { display: inline-flex; min-height: 34px; align-items: center; justify-content: center; gap: .35rem; padding: 0 .7rem; border: 1px solid rgba(255,255,255,.14); border-radius: 999px; color: #dce7df; background: #213936; font: inherit; font-size: .7rem; font-weight: 750; cursor: pointer; box-shadow: inset 0 1px rgba(255,255,255,.08); }
.studio-edit-toolbar button:disabled { opacity: .38; cursor: default; }
.studio-edit-toolbar .is-save { color: #172725; background: linear-gradient(180deg,#e4c484,#d1a95f); border-color: #ead09e; box-shadow: inset 0 1px rgba(255,255,255,.45),0 4px 12px rgba(0,0,0,.2); }
.studio-session-inline-editor { display: grid; grid-template-columns: minmax(0,1fr) 190px; gap: .8rem; padding: 1rem 1.25rem; color: #eef2e9; background: #172f2c; border-top: 1px solid rgba(255,255,255,.1); border-bottom: 1px solid rgba(255,255,255,.1); }
.studio-session-inline-editor[hidden] { display: none; }
.studio-session-inline-editor .is-wide, .studio-session-meta-actions { grid-column: 1 / -1; }
.studio-session-inline-editor label { display: block; margin-bottom: .3rem; color: #a8b8af; font-size: .67rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.studio-session-inline-editor input, .studio-session-inline-editor select, .studio-session-inline-editor textarea { box-sizing: border-box; width: 100%; padding: .7rem .75rem; border: 1px solid rgba(255,255,255,.14); border-radius: 9px; color: #f3f1e8; background: #102220; font: inherit; }
.studio-session-meta-actions { display: flex; justify-content: flex-end; align-items: center; gap: .75rem; }
.studio-session-meta-actions span { color: #b4c4bb; font-size: .8rem; }
.studio-session-meta-actions button { padding: .65rem .9rem; border: 1px solid #e4c58e; border-radius: 9px; color: #172725; background: #d6ae68; font-weight: 800; cursor: pointer; }
.studio-single-track-form label + label { margin-top: .8rem; }
.studio-single-track-form small { display: block; margin-top: .3rem; color: #899c92; font-size: .72rem; }
@media (max-width: 680px) { .studio-session-inline-editor { grid-template-columns: 1fr; } .studio-session-inline-editor .is-wide, .studio-session-meta-actions { grid-column: auto; } }

.studio-vol {
    display: grid;
    grid-template-columns: 28px minmax(70px, 1fr) 38px;
    align-items: center;
    gap: 0.32rem 0.45rem;
}
.studio-control-caption { color: #81958b; font-size: .52rem; font-weight: 800; letter-spacing: .06em; }

.studio-vol input[type="range"] {
    width: 100%;
    accent-color: #668579;
}

.studio-vol-label {
    font-size: 0.72rem;
    color: var(--studio-muted);
    width: 2.2rem;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.studio-status {
    padding: 0.85rem 1.35rem 1.15rem;
    font-size: 0.88rem;
    color: var(--studio-muted);
}

.studio-status.is-error {
    color: #8b3a3a;
}

.studio-loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: grid;
    place-items: center;
    padding: 1.25rem;
    background: rgba(229, 233, 223, 0.78);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.studio-loading-overlay[hidden] {
    display: none;
}

.studio-loading-card {
    width: min(82vw, 300px);
    padding: 1.6rem 1.4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
    text-align: center;
    color: var(--studio-ink);
    background: rgba(247, 245, 238, 0.98);
    border: 1px solid var(--studio-line);
    border-radius: 18px;
    box-shadow: 0 18px 50px rgba(38, 59, 60, 0.2);
}

.studio-loading-card [data-stem-loading-count] {
    color: var(--studio-muted);
    font-size: 0.9rem;
    font-variant-numeric: tabular-nums;
}

.studio-loading-spinner {
    width: 44px;
    height: 44px;
    border: 4px solid rgba(64, 91, 82, 0.18);
    border-top-color: var(--studio-accent-dark);
    border-radius: 50%;
    animation: studio-spin 0.8s linear infinite;
}

.studio-loading-overlay.is-error .studio-loading-spinner {
    animation: none;
    border-color: #8b3a3a;
}

.studio-loading-retry {
    margin-top: 0.25rem;
    padding: 0.65rem 1rem;
    border: 0;
    border-radius: 10px;
    background: var(--studio-accent-dark);
    color: var(--studio-paper);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.studio-loading-retry[hidden] {
    display: none;
}

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

@media (prefers-reduced-motion: reduce) {
    .studio-loading-spinner { animation-duration: 1.6s; }
}

.studio-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--studio-gold);
}

@media (max-width: 640px) {
    .studio-track-columns {
        grid-template-columns: 1fr auto;
    }

    .studio-track-columns span:last-child {
        display: none;
    }

    .studio-track {
        grid-template-columns: 1fr;
        gap: 0.55rem;
    }
}

/* Mobile DAW player */
.studio-player {
    --console: #172a29;
    --console-raised: #203735;
    --console-soft: #294440;
    --console-line: rgba(231, 235, 222, 0.12);
    --console-text: #f3f1e8;
    --console-muted: #a9b8af;
    --console-gold: #d6ae68;
    background: var(--console);
    border: 1px solid rgba(24, 47, 44, 0.45);
    border-radius: 22px;
    box-shadow: 0 24px 60px rgba(28, 50, 47, 0.22);
}

.studio-player-head {
    padding: 1.1rem 1.25rem;
    background:
        radial-gradient(circle at 82% 0, rgba(214, 174, 104, 0.12), transparent 38%),
        linear-gradient(145deg, #294541, #1c3230);
    border-bottom-color: var(--console-line);
    align-items: center;
}

.studio-player-title {
    font-family: Inter, system-ui, sans-serif;
    font-size: clamp(1.35rem, 3vw, 1.85rem);
    letter-spacing: -0.025em;
}

.studio-player-head .studio-sub {
    color: var(--console-muted);
    font-size: 0.86rem;
    line-height: 1.4;
}

.studio-badge {
    margin: 0 0 0.4rem;
    color: #ddbd86;
    font-size: 0.64rem;
    letter-spacing: 0.11em;
}

.studio-head-actions {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.studio-track-count,
.studio-player-back,
.studio-edit-button {
    min-height: 34px;
    padding: 0 0.7rem;
    border: 1px solid var(--console-line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--console-muted);
    font-size: 0.72rem;
    font-weight: 700;
}
.studio-edit-button[hidden] { display: none; }

.studio-edit-button {
    display: inline-flex;
    align-items: center;
    gap: 0.38rem;
    font: inherit;
    cursor: pointer;
    color: #1b302d;
    background: var(--console-gold);
    border-color: #e5c791;
    justify-content: center;
    box-shadow: inset 0 1px rgba(255,255,255,.34), 0 4px 12px rgba(0,0,0,.2);
}
.studio-edit-button.is-active { color: #f4f0e5; background: #55766d; border-color: #76958b; }

.studio-track-count {
    display: inline-flex;
    align-items: center;
    gap: 0.38rem;
}

.studio-transport {
    position: relative;
    padding: 0.8rem 1rem;
    gap: 0.5rem;
    flex-wrap: nowrap;
    background: #142524;
    border-bottom-color: rgba(0, 0, 0, 0.5);
    box-shadow: inset 0 -1px rgba(255, 255, 255, 0.04);
}

.studio-transport-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--console-muted);
    font-size: 0.67rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    margin-right: 0.25rem;
}

.studio-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    min-width: 42px;
    height: 42px;
    min-height: 42px;
    padding: 0;
    border-radius: 50%;
    background: var(--console-raised);
    border-color: var(--console-line);
    color: var(--console-text);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.07), 0 4px 12px rgba(0, 0, 0, 0.18);
}
.studio-btn i, .studio-edit-button i { display: block; width: 1em; line-height: 1; text-align: center; }

.studio-btn span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

.studio-btn.is-primary {
    background: var(--console-gold);
    border-color: #e4c58e;
    color: #172725;
}

.studio-time {
    order: 2;
    min-width: 7.7rem;
    padding: 0.48rem 0.65rem;
    border: 1px solid var(--console-line);
    border-radius: 7px;
    background: #0c1c1b;
    color: #d9e6dc;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.78rem;
    text-align: center;
}

.studio-scrubber-wrap {
    order: 3;
    min-width: 100px;
}

.studio-scrubber,
.studio-vol input[type="range"] {
    appearance: none;
    height: 4px;
    border-radius: 99px;
    background: linear-gradient(90deg, #6f9184, #405d55);
}

.studio-scrubber::-webkit-slider-thumb,
.studio-vol input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    border: 3px solid #f0eee5;
    border-radius: 50%;
    background: var(--console-gold);
    box-shadow: 0 2px 7px rgba(0, 0, 0, 0.35);
}

.studio-ruler {
    height: 24px;
    padding: 0 1rem;
    color: #83968e;
    background: #101f1e;
    border-bottom-color: rgba(0, 0, 0, 0.6);
}

.studio-track-columns {
    grid-template-columns: minmax(0, 1fr) 76px minmax(250px, 330px);
    padding: 0.48rem 1rem;
    color: #8fa098;
    background: #1b302e;
    border-bottom-color: var(--console-line);
    font-size: 0.57rem;
}

.studio-track-columns span:nth-child(3) {
    text-align: center;
}

.studio-tracks {
    background: #142624;
}

.studio-track {
    grid-template-columns: minmax(0, 1fr) 76px minmax(250px, 330px);
    min-height: 68px;
    padding: 0.62rem 1rem;
    gap: 0.65rem;
    background: linear-gradient(180deg, #27423e, #203936);
    border-top-color: var(--console-line);
}

.studio-track:nth-child(even) {
    background: linear-gradient(180deg, #243d3a, #1d3431);
}

.studio-track-color {
    width: 4px;
    background: #82a995;
    box-shadow: 2px 0 14px currentColor;
}

.studio-track:nth-child(4n + 2) .studio-track-color { background: #c99063; }
.studio-track:nth-child(4n + 3) .studio-track-color { background: #8ea878; }
.studio-track:nth-child(4n + 4) .studio-track-color { background: #7197a1; }

.studio-track.is-soloed {
    background: linear-gradient(90deg, rgba(214, 174, 104, 0.25), #273e38 45%);
}

.studio-track.is-muted {
    filter: saturate(0.55);
}

.studio-track-number {
    width: 1.4rem;
    color: #7f948b;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.studio-track-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(236, 238, 226, 0.07);
    border-color: var(--console-line);
    color: #b9cbbf;
}

.studio-track-name {
    color: var(--console-text);
    font-size: 0.9rem;
}

.studio-track-role {
    color: #91a49b;
    font-size: 0.67rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.studio-track-actions {
    justify-content: center;
    gap: 0.4rem;
}

.studio-track-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: #132624;
    border-color: var(--console-line);
    color: #a8bab1;
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.05);
}

.studio-track-mute.is-active {
    background: #c86f58;
    color: #fff9ef;
}

.studio-track-solo.is-active {
    background: var(--console-gold);
    border-color: #ebcb91;
    color: #1c2b27;
}

.studio-vol-label {
    color: #a9bbb2;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.66rem;
}

.studio-status {
    margin: 0;
    padding: 0.6rem 1rem;
    color: #8fa198;
    background: #101f1e;
    border-top: 1px solid var(--console-line);
    font-size: 0.72rem;
}

@media (max-width: 700px) {
    .studio-page {
        padding: 0.5rem 0 1.5rem;
    }

    .studio-player {
        border-radius: 0;
        border-left: 0;
        border-right: 0;
        min-height: calc(100vh - 90px);
    }

    .studio-player-head {
        padding: 0.85rem 0.9rem;
    }

    .studio-player-head .studio-sub,
    .studio-track-count {
        display: none;
    }

    .studio-player-back {
        width: 34px;
        padding: 0;
        justify-content: center;
        font-size: 0;
    }

    .studio-player-back i {
        font-size: 0.75rem;
    }

    .studio-transport {
        position: sticky;
        top: 0;
        z-index: 20;
        display: grid;
        grid-template-columns: repeat(2, 42px) minmax(0, 1fr);
        padding: 0.68rem 0.75rem 0.8rem;
    }

    .studio-transport-label {
        display: none;
    }

    .studio-time {
        grid-column: 3;
        grid-row: 1;
        order: initial;
        justify-self: end;
        min-width: 7.1rem;
    }

    .studio-scrubber-wrap {
        grid-column: 1 / -1;
        width: 100%;
        padding-top: 0.42rem;
        order: initial;
    }

    .studio-ruler {
        display: none;
    }

    .studio-track-columns {
        display: none;
    }

    .studio-track {
        grid-template-columns: minmax(0, 1fr) 72px;
        min-height: 92px;
        padding: 0.65rem 0.75rem 0.62rem 0.85rem;
        gap: 0.5rem;
    }

    .studio-track-label {
        grid-column: 1;
    }

    .studio-track-actions {
        grid-column: 2;
        grid-row: 1;
    }

    .studio-vol {
        grid-column: 1 / -1;
        grid-row: 2;
        padding-left: 1.9rem;
    }

    .studio-track-icon {
        width: 32px;
        height: 32px;
    }

    .studio-track-name {
        font-size: 0.82rem;
    }
}

/* Public session index: compact, viewport-safe mobile composition. */
@media (max-width: 700px) {
    .studio-list-page {
        box-sizing: border-box;
        width: 100%;
        max-width: 100%;
        padding: .8rem .72rem 2rem;
        overflow-x: clip;
    }
    .studio-list-page .studio-hero {
        position: relative;
        margin: 0 0 .85rem;
        padding: .85rem .15rem .95rem;
        border-bottom: 1px solid rgba(64,91,82,.16);
    }
    .studio-list-page .studio-kicker {
        display: inline-flex;
        align-items: center;
        margin-bottom: .42rem;
        padding: .28rem .48rem;
        border-radius: 999px;
        background: rgba(167,124,87,.1);
        font-size: .61rem;
        letter-spacing: .12em;
    }
    .studio-list-page .studio-title {
        max-width: 100%;
        margin-bottom: .4rem;
        font-size: clamp(1.85rem, 10vw, 2.35rem);
        line-height: 1;
        overflow-wrap: anywhere;
    }
    .studio-list-page .studio-sub {
        max-width: 30rem;
        font-size: .84rem;
        line-height: 1.43;
        overflow-wrap: anywhere;
    }
    .studio-list-page .studio-grid { width: 100%; min-width: 0; gap: .6rem; }
    .studio-list-page .studio-card {
        box-sizing: border-box;
        width: 100%;
        min-width: 0;
        grid-template-columns: 64px minmax(0, 1fr) 32px;
        min-height: 74px;
        border-radius: 11px;
    }
    .studio-list-page .studio-card-cover { width: 64px; min-height: 74px; }
    .studio-list-page .studio-card-cover-letter { font-size: 1.55rem; }
    .studio-list-page .studio-card-body { min-width: 0; padding: .62rem .65rem; overflow: hidden; }
    .studio-list-page .studio-card-title { margin-bottom: .18rem; font-size: .98rem; line-height: 1.15; overflow-wrap: anywhere; }
    .studio-list-page .studio-card-meta { gap: .25rem .5rem; font-size: .53rem; letter-spacing: .045em; }
    .studio-list-page .studio-card-desc { font-size: .7rem; line-height: 1.3; -webkit-line-clamp: 1; }
    .studio-list-page .studio-card-open { width: 28px; height: 28px; margin-right: .28rem; font-size: .66rem; }
}

@media (max-width: 370px) {
    .studio-list-page { padding-inline: .55rem; }
    .studio-list-page .studio-card { grid-template-columns: 56px minmax(0, 1fr) 28px; min-height: 68px; }
    .studio-list-page .studio-card-cover { width: 56px; min-height: 68px; }
    .studio-list-page .studio-card-body { padding: .55rem; }
    .studio-list-page .studio-card-meta span:first-child { display: none; }
    .studio-list-page .studio-card-desc { display: none; }
    .studio-list-page .studio-card-open { width: 25px; height: 25px; margin-right: .18rem; }
}

/* Admin track-edit mode must override the regular mixer grid above. */
.studio-player .studio-track-edit { display: none; }
.studio-player.is-editing-tracks .studio-track-delete { display: inline-flex; }
.studio-player.is-editing-tracks .studio-track { grid-template-columns: minmax(0, 1fr) 112px minmax(250px, 330px); cursor: grab; }
@media (max-width: 700px) {
    .studio-player.is-editing-tracks .studio-track { grid-template-columns: minmax(0, 1fr) 108px; }
}

body.studio-editor-open { overflow: hidden; }
.studio-editor-modal { position: fixed; inset: 0; z-index: 20000; display: grid; place-items: center; padding: 1rem; background: rgba(8, 20, 19, .72); backdrop-filter: blur(8px); }
.studio-editor-modal[hidden] { display: none; }
.studio-editor-panel { width: min(920px, 100%); max-height: min(88vh, 900px); display: flex; flex-direction: column; overflow: hidden; color: #eef2e9; background: #172a29; border: 1px solid rgba(255,255,255,.14); border-radius: 20px; box-shadow: 0 30px 90px rgba(0,0,0,.45); }
.studio-editor-panel > header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.15rem; background: #203735; border-bottom: 1px solid rgba(255,255,255,.1); }
.studio-editor-panel > header span { color: #d6ae68; font-size: .62rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.studio-editor-panel h2 { margin: .18rem 0 0; font-size: 1.25rem; }
.studio-editor-panel > header button { width: 36px; height: 36px; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; color: #eef2e9; background: #142523; cursor: pointer; }
.studio-editor-body { overflow: auto; }
.studio-editor-loading, .studio-editor-error { padding: 3rem; text-align: center; color: #a9b8af; }
.studio-editor-form { padding: 1rem; }
.studio-editor-fields { display: grid; grid-template-columns: 1fr 180px; gap: .8rem; padding-bottom: 1rem; }
.studio-editor-fields .is-wide { grid-column: 1 / -1; }
.studio-editor-form label span { display: block; margin-bottom: .3rem; color: #9fb1a8; font-size: .65rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.studio-editor-form input, .studio-editor-form select, .studio-editor-form textarea { box-sizing: border-box; width: 100%; padding: .7rem .75rem; border: 1px solid rgba(255,255,255,.12); border-radius: 9px; outline: none; color: #f3f1e8; background: #102220; font: inherit; }
.studio-editor-form input:focus, .studio-editor-form select:focus, .studio-editor-form textarea:focus { border-color: #d6ae68; box-shadow: 0 0 0 3px rgba(214,174,104,.12); }
.studio-editor-track-head { display: flex; justify-content: space-between; align-items: baseline; padding: .75rem .2rem; border-top: 1px solid rgba(255,255,255,.1); }
.studio-editor-track-head span { color: #82968c; font-size: .72rem; }
.studio-editor-tracks { display: grid; gap: .45rem; margin: 0; padding: 0; list-style: none; }
.studio-editor-track { display: grid; grid-template-columns: 34px minmax(0,1fr) 190px; gap: .65rem; align-items: end; padding: .65rem; border: 1px solid rgba(255,255,255,.09); border-radius: 11px; background: #203633; }
.studio-editor-track.is-dragging { opacity: .45; }
.studio-editor-handle { align-self: center; color: #83978d; text-align: center; cursor: grab; }
.studio-editor-footer { position: sticky; bottom: -1rem; display: flex; justify-content: flex-end; align-items: center; gap: .55rem; margin: 1rem -1rem -1rem; padding: .85rem 1rem; background: #142523; border-top: 1px solid rgba(255,255,255,.1); }
.studio-editor-footer [data-editor-message] { margin-right: auto; color: #b4c4bb; font-size: .8rem; }
.studio-editor-footer button { padding: .65rem .9rem; border-radius: 9px; font: inherit; font-weight: 700; cursor: pointer; }
.studio-editor-cancel { color: #c2cec7; background: transparent; border: 1px solid rgba(255,255,255,.13); }
.studio-editor-save { color: #172725; background: #d6ae68; border: 1px solid #e4c58e; }
.studio-single-track-form { display: grid; gap: .9rem; }
.studio-editor-file { margin: 0; padding: .7rem .8rem; border-radius: 9px; color: #9fb1a8; background: #102220; font-size: .75rem; overflow-wrap: anywhere; }
.studio-editor-delete { margin-right: auto; color: #ffd9d0; background: #713b35; border: 1px solid #99564d; }
@media (max-width: 700px) {
    .studio-edit-button { width: 42px; min-height: 42px; padding: 0; justify-content: center; font-size: 0; border-radius: 12px; }
    .studio-edit-button i { font-size: .86rem; }
    .studio-edit-toolbar { gap: .25rem; }
    .studio-edit-toolbar button { width: 38px; height: 38px; min-height: 38px; padding: 0; border-radius: 11px; font-size: 0; }
    .studio-edit-toolbar button i { font-size: .76rem; }
    .studio-edit-toolbar [data-editor-cancel], .studio-edit-toolbar .is-save { width: auto; padding: 0 .58rem; font-size: .62rem; }
    .studio-editor-modal { padding: 0; place-items: end stretch; }
    .studio-editor-panel { width: 100%; max-height: 94vh; border-radius: 18px 18px 0 0; }
    .studio-editor-fields { grid-template-columns: 1fr; }
    .studio-editor-fields .is-wide { grid-column: auto; }
    .studio-editor-track { grid-template-columns: 26px minmax(0,1fr); }
    .studio-editor-track label:last-child { grid-column: 2; }
    .studio-player.is-editing-tracks .studio-track { grid-template-columns: minmax(0, 1fr) 108px; }
    .studio-editor-footer { flex-wrap: wrap; }
    .studio-editor-footer [data-editor-message] { width: 100%; }
}