/* =================================================================
   BEYOND — Soundtrack Player v2
   Refonte complète, alignée sur le design system global (style.css) :
   fond transparent noir sans bordure pour le châssis, panneaux
   hairline internes, typographies Unbounded (display) / Inter
   (texte), accents néon bleu/rose. Ambiance dynamique dérivée de la
   pochette, waveform réel, mini-lecteur persistant, recherche,
   raccourcis clavier.
   ================================================================= */

.soundtrack-page {
    max-width: 1040px;
    margin: 0 auto;
    padding: clamp(0.5rem, 1rem, 0.5rem) 0rem 6rem;
    --stk-glow-a: 53, 212, 255;
    --stk-glow-b: 255, 63, 181;
}

@media (prefers-reduced-motion: reduce) {
    .soundtrack-page * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* ---- Châssis : fond transparent noir, pas de bordure ------------- */
.stk-chassis {
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(14px);
    border-radius: 22px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
    overflow: hidden;
    position: relative;
    isolation: isolate;
}

/* ---- Ambiance dynamique (blobs colorés dérivés de la pochette) --- */
.stk-glow {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.6;
    transition: opacity 0.6s var(--ease);
}
.stk-glow::before, .stk-glow::after {
    content: "";
    position: absolute;
    width: 55%;
    height: 55%;
    border-radius: 50%;
    filter: blur(70px);
    animation: stk-drift 16s ease-in-out infinite alternate;
}
.stk-glow::before {
    top: -15%;
    left: -10%;
    background: rgba(var(--stk-glow-a), 0.35);
}
.stk-glow::after {
    bottom: -20%;
    right: -10%;
    background: rgba(var(--stk-glow-b), 0.32);
    animation-delay: -8s;
    animation-direction: alternate-reverse;
}
.stk-player.is-playing ~ .stk-glow,
.stk-grid:has(.stk-player.is-playing) .stk-glow { opacity: 1; }
@keyframes stk-drift {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(6%, 8%) scale(1.15); }
}

.stk-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 1.5rem;
    padding: clamp(1.25rem, 3vw, 1.75rem);
}
@media (max-width: 820px) {
    .stk-grid { grid-template-columns: 1fr; }
}

.stk-hero {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

/* ---- Pochette --------------------------------------------------- */
.stk-art {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--hairline);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.6);
}
.stk-art img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    filter: brightness(0.88) saturate(1);
    transform: scale(1.02);
    transition: filter 0.5s var(--ease), transform 8s linear;
}
.stk-art img.is-playing {
    filter: brightness(1.05) saturate(1.15);
    transform: scale(1.08);
}
.stk-art-sheen {
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.16) 45%, transparent 60%);
    background-size: 220% 220%;
    background-position: -40% -40%;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease);
}
.stk-player.is-playing .stk-art-sheen {
    opacity: 1;
    animation: stk-sheen 5s ease-in-out infinite;
}
@keyframes stk-sheen {
    0%, 100% { background-position: -40% -40%; }
    50% { background-position: 140% 140%; }
}
.stk-art-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 55%);
    pointer-events: none;
}
.stk-art-badge {
    position: absolute;
    top: 10px; left: 10px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 9px 4px 7px;
    border-radius: 999px;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--hairline);
    backdrop-filter: blur(6px);
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.stk-art-badge .stk-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
}
.stk-player.is-playing .stk-art-badge .stk-dot {
    background: var(--pink);
    box-shadow: 0 0 8px var(--pink);
    animation: stk-pulse 1.1s ease-in-out infinite;
}
@keyframes stk-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
}
/* ---- VU-mètres compacts ------------------------------------------ */
.stk-vu {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: var(--panel);
    border: 1px solid var(--hairline);
    border-radius: 10px;
}
.stk-vu-ch { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 1; }
.stk-vu-ch-label {
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}
.stk-vu-bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 22px;
    width: 100%;
}
.stk-vu-seg {
    flex: 1;
    height: 100%;
    border-radius: 1px;
    background: linear-gradient(180deg, #35d4ff, #7a4dff 60%, #ff3fb5);
    opacity: 0.12;
    transform: scaleY(0.15);
    transform-origin: bottom;
    transition: transform 0.08s linear, opacity 0.08s linear;
}
.stk-vu-divider { width: 1px; align-self: stretch; background: var(--hairline); }
.stk-vu-peak {
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    writing-mode: vertical-rl;
    transition: color 0.15s var(--ease), text-shadow 0.15s var(--ease);
}
.stk-vu-peak.is-hot { color: var(--pink); text-shadow: 0 0 8px rgba(255,63,181,0.7); }

/* ---- Afficheur / deck --------------------------------------------- */
.stk-deck {
    background: var(--panel);
    border: 1px solid var(--hairline);
    border-radius: 14px;
    padding: 13px;
    box-shadow: inset 0 0 18px rgba(53, 212, 255, 0.07);
    position: relative;
}
.stk-deck-mode {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 5px;
}
.stk-deck-mode span { color: var(--blue); text-shadow: 0 0 6px var(--blue); }
.stk-deck-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
    text-shadow: 0 0 10px rgba(53, 212, 255, 0.3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.stk-deck-artist { font-size: 0.78rem; color: var(--text-dim); margin-bottom: 10px; }

/* ---- Waveform (progression réelle) -------------------------------- */
.stk-wave-wrap {
    position: relative;
    height: 44px;
    border-radius: 8px;
    cursor: pointer;
    touch-action: none;
}
.stk-wave-wrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.stk-wave-tip {
    position: absolute;
    bottom: 100%;
    margin-bottom: 6px;
    transform: translateX(-50%);
    padding: 2px 6px;
    border-radius: 5px;
    background: rgba(0,0,0,0.85);
    border: 1px solid var(--hairline);
    font-family: var(--font-display);
    font-size: 0.62rem;
    color: var(--text);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s var(--ease);
}
.stk-wave-wrap:hover .stk-wave-tip, .stk-wave-wrap.is-scrubbing .stk-wave-tip { opacity: 1; }

.stk-deck-time-row {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    font-family: var(--font-display);
    font-size: 0.68rem;
    font-variant-numeric: tabular-nums;
}
.stk-deck-time-row .stk-time-now { color: var(--pink); text-shadow: 0 0 8px rgba(255,63,181,0.5); }
.stk-deck-time-row .stk-time-total { color: var(--text-dim); }

/* ---- Bandeau de statut --------------------------------------------- */
.stk-status {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.stk-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 9px;
    border-radius: 999px;
    background: var(--panel);
    border: 1px solid var(--hairline);
    font-family: var(--font-display);
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-dim);
    transition: all 0.2s var(--ease);
}
.stk-chip.is-on { color: var(--text); border-color: var(--pink); background: rgba(255,63,181,0.12); box-shadow: 0 0 8px rgba(255,63,181,0.3); }
.stk-chip-dot { width: 5px; height: 5px; border-radius: 50%; background: rgba(100,180,255,0.4); }
.stk-chip-dot.is-live { background: #47e08a; box-shadow: 0 0 6px #47e08a; animation: stk-pulse 1.4s ease-in-out infinite; }

/* ---- Bouton de téléchargement --------------------------------------- */
.stk-download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 10px 16px;
    background: rgba(53, 212, 255, 0.08);
    border: 1px solid var(--hairline);
    border-radius: 10px;
    color: var(--blue);
    font-family: var(--font-display);
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-decoration: none;
    text-shadow: 0 0 6px rgba(53, 212, 255, 0.4);
    transition: all 0.2s var(--ease);
    box-sizing: border-box;
}
.stk-download-btn:hover {
    background: rgba(53, 212, 255, 0.18);
    border-color: var(--blue);
    box-shadow: 0 0 15px rgba(53, 212, 255, 0.3);
    color: var(--text);
}
.stk-download-btn svg { transition: transform 0.2s var(--ease); }
.stk-download-btn:hover svg { transform: translateY(2px); }

/* ---- Colonne droite -------------------------------------------------- */
.stk-panel {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    background: rgba(0, 0, 0, 0.25);
    border-radius: 16px;
    border: 1px solid var(--hairline);
    padding: 1rem;
    min-height: 0;
}

/* ---- Visualiseur : spectre / oscilloscope ---------------------------- */
.stk-visual {
    position: relative;
    width: 100%;
    height: 108px;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--hairline);
}
.stk-visual canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.stk-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background-image: repeating-linear-gradient(0deg, rgba(0,0,0,0.32) 0px, rgba(0,0,0,0.32) 1px, transparent 1px, transparent 3px);
    mix-blend-mode: overlay;
}
.stk-visual-tabs {
    position: absolute;
    top: 8px; right: 8px;
    z-index: 3;
    display: flex;
    gap: 4px;
}
.stk-vtab {
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--hairline);
    border-radius: 5px;
    color: var(--text-dim);
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 7px;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: all 0.2s var(--ease);
}
.stk-vtab:hover { color: var(--text); }
.stk-vtab.is-on { color: var(--text); border-color: var(--blue); background: rgba(53,212,255,0.18); }
.stk-visual-idle {
    position: absolute; inset: 0;
    z-index: 1;
    display: flex; align-items: center; justify-content: center;
    gap: 10px;
    transition: opacity 0.4s var(--ease);
}
.stk-visual-idle img { width: 34px; height: 34px; border-radius: 6px; opacity: 0.35; filter: grayscale(0.5); }
.stk-visual-idle span {
    font-family: var(--font-display);
    font-size: 0.62rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    opacity: 0.6;
}
.stk-visual-idle.is-hidden { opacity: 0; pointer-events: none; }

/* ---- En-tête playlist + recherche ------------------------------------ */
.stk-list-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 10px;
    background: var(--panel);
    border: 1px solid var(--hairline);
    border-radius: 10px;
}
.stk-list-title {
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    white-space: nowrap;
}
.stk-list-title span { color: var(--blue); }
.stk-search-wrap {
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 1;
    max-width: 160px;
}
.stk-search-wrap svg { color: var(--text-dim); flex-shrink: 0; }
.stk-search-wrap input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.78rem;
}
.stk-search-wrap input::placeholder { color: var(--text-dim); }

/* ---- Tracklist --------------------------------------------------------- */
.stk-tracklist {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    min-height: 120px;
    overflow-y: auto;
}
.stk-tracklist::-webkit-scrollbar { width: 4px; }
.stk-tracklist::-webkit-scrollbar-thumb { background: rgba(53,212,255,0.3); border-radius: 2px; }

.stk-track {
    display: grid;
    grid-template-columns: 24px auto 1fr auto;
    align-items: center;
    gap: 8px;
    padding: 7px 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s var(--ease), color 0.2s var(--ease);
    font-size: 0.85rem;
    color: var(--text-dim);
    width: 100%;
    box-sizing: border-box;
    border-left: 2px solid transparent;
    opacity: 0;
    animation: stk-track-in 0.35s var(--ease) forwards;
    animation-delay: calc(var(--i, 0) * 28ms);
}
@keyframes stk-track-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}
.stk-track:hover { background: rgba(53, 212, 255, 0.06); color: var(--text); }
.stk-track.is-active { background: rgba(255, 63, 181, 0.09); color: var(--text); border-left-color: var(--pink); }
.stk-track.is-filtered-out { display: none; }

.stk-track-num { font-family: var(--font-display); font-size: 0.72rem; font-variant-numeric: tabular-nums; }
.stk-track-eq { display: none; align-items: flex-end; gap: 1.5px; height: 12px; width: 14px; }
.stk-track.is-active .stk-track-num { display: none; }
.stk-track.is-active .stk-track-eq { display: flex; }
.stk-track-eq i { width: 2px; background: var(--pink); border-radius: 1px; animation: stk-eq-anim 0.8s ease-in-out infinite alternate; }
.stk-track-eq i:nth-child(2) { animation-delay: 0.2s; }
.stk-track-eq i:nth-child(3) { animation-delay: 0.4s; }
@keyframes stk-eq-anim { from { height: 20%; } to { height: 100%; } }

.stk-track-title {
    font-family: var(--font-body);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    width: 100%;
}
.stk-track-duration {
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-variant-numeric: tabular-nums;
    color: var(--text-dim);
    white-space: nowrap;
    justify-self: end;
}

/* ---- Barre de transport --------------------------------------------- */
.stk-transport {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: var(--panel);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    flex-wrap: wrap;
}

.stk-tbtn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    color: var(--text);
    cursor: pointer;
    width: 32px; height: 32px;
    display: inline-flex; align-items: center; justify-content: center;
    transition: all 0.2s var(--ease);
    flex-shrink: 0;
}
.stk-tbtn:hover { background: rgba(53, 212, 255, 0.15); border-color: var(--blue); box-shadow: 0 0 8px rgba(53,212,255,0.4); }
.stk-tbtn.is-on { color: var(--pink); border-color: var(--pink); background: rgba(255,63,181,0.15); box-shadow: 0 0 8px rgba(255,63,181,0.35); }

.stk-play-wrap { position: relative; width: 44px; height: 44px; flex-shrink: 0; }
.stk-play-ring { position: absolute; inset: 0; transform: rotate(-90deg); }
.stk-play-ring circle { fill: none; stroke-width: 2; }
.stk-play-ring .stk-ring-bg { stroke: var(--hairline); }
.stk-play-ring .stk-ring-fill { stroke: var(--pink); stroke-linecap: round; filter: drop-shadow(0 0 4px var(--pink)); transition: stroke-dashoffset 0.15s linear; }
.stk-tbtn-play {
    position: absolute;
    top: 3px; left: 3px;
    width: 38px; height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(53,212,255,0.22), rgba(255,63,181,0.22));
    border: 1px solid var(--pink);
    box-shadow: 0 0 10px rgba(255,63,181,0.3);
    color: var(--text);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.stk-tbtn-play .stk-icon-pause { display: none; }
.stk-player.is-playing .stk-tbtn-play .stk-icon-play { display: none; }
.stk-player.is-playing .stk-tbtn-play .stk-icon-pause { display: block; }

.stk-seek-vol { flex: 1; display: flex; flex-direction: column; gap: 6px; min-width: 140px; }
.stk-vol-row { display: flex; align-items: center; gap: 8px; }
.stk-vol-pct {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
    min-width: 30px;
    text-align: right;
}
.stk-range-wrap {
    position: relative;
    flex: 1;
    height: 14px;
    display: flex;
    align-items: center;
    cursor: pointer;
}
.stk-range-wrap::before {
    content: "";
    position: absolute; left: 0; right: 0;
    height: 4px; border-radius: 2px;
    background: rgba(255,255,255,0.1);
}
.stk-range-fill {
    position: absolute; left: 0;
    height: 4px; border-radius: 2px;
    background: var(--pink);
    box-shadow: 0 0 6px var(--pink);
    width: 80%;
}
.stk-range-thumb {
    position: absolute; left: 0%;
    width: 10px; height: 10px; border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 8px #fff;
    transform: translateX(-50%);
}
.stk-btn-vol-mute { background: none; border: none; color: var(--text-dim); cursor: pointer; display: flex; align-items: center; flex-shrink: 0; }
.stk-btn-vol-mute:hover { color: var(--text); }
.stk-icon-vol-off { display: none; }
.stk-btn-vol-mute.is-muted .stk-icon-vol-on { display: none; }
.stk-btn-vol-mute.is-muted .stk-icon-vol-off { display: inline-flex; }

.stk-speed-btn {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    font-family: var(--font-display);
    color: var(--text-dim);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    padding: 0 9px;
    height: 32px;
    cursor: pointer;
    transition: all 0.2s var(--ease);
    flex-shrink: 0;
    min-width: 40px;
}
.stk-speed-btn:hover { color: var(--text); border-color: var(--blue); }
.stk-speed-btn.is-active { color: var(--text); border-color: var(--blue); background: rgba(53,212,255,0.15); box-shadow: 0 0 8px rgba(53,212,255,0.3); }

/* ---- Mini-lecteur persistant (docké au scroll) ------------------------ */
.stk-mini {
    position: fixed;
    left: 50%;
    bottom: 14px;
    transform: translate(-50%, 140%);
    z-index: 60;
    display: flex;
    align-items: center;
    gap: 10px;
    width: min(560px, calc(100% - 24px));
    padding: 8px 12px;
    background: rgba(10, 10, 14, 0.75);
    backdrop-filter: blur(16px);
    border: 1px solid var(--hairline);
    border-radius: 999px;
    box-shadow: 0 14px 40px rgba(0,0,0,0.5);
    transition: transform 0.35s var(--ease);
}
.stk-mini.is-visible { transform: translate(-50%, 0); }
.stk-mini-cover { width: 34px; height: 34px; border-radius: 8px; object-fit: cover; flex-shrink: 0; }
.stk-mini-info { flex: 1; min-width: 0; }
.stk-mini-title {
    font-family: var(--font-display);
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.stk-mini-progress {
    height: 3px;
    border-radius: 2px;
    background: rgba(255,255,255,0.12);
    margin-top: 4px;
    overflow: hidden;
}
.stk-mini-progress-fill { height: 100%; width: 0%; background: var(--gradient); box-shadow: 0 0 6px var(--pink); }
.stk-mini-btns { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.stk-mini .stk-tbtn { width: 28px; height: 28px; }
.stk-mini .stk-tbtn-play { width: 32px; height: 32px; position: static; }

/* ---- États vides / clavier ------------------------------------------- */
.stk-empty-box { padding: 3rem; text-align: center; }
.stk-empty { color: var(--text-dim); font-size: 0.9rem; }

.stk-kbd-hint {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 2px;
    font-family: var(--font-body);
    font-size: 0.68rem;
    color: var(--text-dim);
    opacity: 0.55;
}
.stk-kbd-hint kbd {
    font-family: var(--font-display);
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--hairline);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.62rem;
}

@media (max-width: 560px) {
    .stk-mini { bottom: 8px; }
    .stk-transport { justify-content: center; }
    .stk-seek-vol { order: 5; flex-basis: 100%; }
}