/**
 * DrumSeq Advanced — CSS porté du prototype drum-sequencer.
 * Tout est scopé sous .drumseq-app (pas de reset global html/body).
 */

/* ═══ VARIABLES (scoped) ═══ */
.drumseq-app {
    /* Brown / Gold palette */
    --ds-brown-900: #2C1B14;
    --ds-brown-800: #3E2723;
    --ds-brown-700: #4E342E;
    --ds-brown-600: #5D4037;
    --ds-brown-500: #6D4C41;
    --ds-brown-400: #8D6E63;
    --ds-brown-300: #A1887F;
    --ds-gold: #FFD700;
    --ds-gold-light: #FFE44D;
    --ds-gold-dim: #C4A000;
    --ds-gold-glow: rgba(255, 215, 0, 0.25);

    /* Grid colors */
    --ds-grid-row-light: #B8B0A4;
    --ds-grid-row-dark: #AAA296;

    /* Text */
    --ds-text-on-brown: #FFD700;
    --ds-text-on-brown-dim: #D4B86A;
    --ds-text-on-brown-muted: #8D7B5F;

    /* Dimensions */
    --ds-toolbar-h: 56px;
    --ds-toolbar-pad-x: 16px;
    --ds-toolbar-gap-outer: 12px;
    --ds-toolbar-gap-groups: 12px;
    --ds-toolbar-gap-label: 8px;
    --ds-panel-w: 180px;
    --ds-timeline-h: 28px;
    --ds-track-h: 40px;
    --ds-status-h: 24px;

    /* Fonts (already loaded from index.php) */
    --ds-font-heading: 'Bebas Neue', 'Impact', sans-serif;
    --ds-font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --ds-font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
}

/* ═══ CONTAINER ═══ */
.drumseq-app {
    margin-top: 0.5rem;
    border: 1px solid rgba(120, 90, 72, 0.55);
    border-radius: 10px;
    background: var(--ds-brown-900);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 320px;
    user-select: none;
}

/* ═══ TOOLBAR ═══ */
.drumseq-app .ds-toolbar {
    height: var(--ds-toolbar-h);
    min-height: var(--ds-toolbar-h);
    background: var(--ds-brown-900);
    border-bottom: 1px solid rgba(212, 184, 140, 0.22);
    display: flex;
    align-items: center;
    padding: 0 var(--ds-toolbar-pad-x);
    gap: var(--ds-toolbar-gap-outer);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
    flex-shrink: 0;
}

.drumseq-app .ds-toolbar-section {
    display: flex;
    align-items: center;
    gap: var(--ds-toolbar-gap-groups);
}

.drumseq-app .ds-toolbar-left {
    flex-shrink: 0;
    padding-right: 14px;
    margin-right: 2px;
    border-right: 1px solid var(--ds-brown-600);
}

.drumseq-app .ds-toolbar-center {
    flex: 1 1 0;
    min-width: 0;
    justify-content: center;
    flex-wrap: wrap;
    row-gap: 6px;
}

/* Séparation légère entre blocs (GRID, SNAP, BARS…) */
.drumseq-app .ds-toolbar-center .ds-control-group + .ds-control-group {
    padding-left: var(--ds-toolbar-gap-groups);
    margin-left: 2px;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.drumseq-app .ds-toolbar-right {
    flex-shrink: 0;
    padding-left: 14px;
    margin-left: 2px;
    border-left: 1px solid var(--ds-brown-600);
}

.drumseq-app .ds-toolbar-right .ds-control-group + .ds-control-group {
    padding-left: var(--ds-toolbar-gap-groups);
    margin-left: 2px;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.drumseq-app .ds-title {
    font-family: var(--ds-font-heading);
    font-size: 20px;
    letter-spacing: 2px;
    color: var(--ds-gold);
    line-height: 1;
    text-shadow: 0 0 12px rgba(255, 215, 0, 0.2);
    white-space: nowrap;
}

.drumseq-app .ds-title-accent {
    color: #fff;
}

/* ── Control groups ── */
.drumseq-app .ds-control-group {
    display: flex;
    align-items: center;
    gap: var(--ds-toolbar-gap-label);
}

.drumseq-app .ds-control-label {
    font-family: var(--ds-font-heading);
    font-size: 13px;
    letter-spacing: 2px;
    color: #f5f0e6;
    opacity: 0.95;
}

.drumseq-app .ds-control-select {
    background: var(--ds-brown-700);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #ffffff;
    font-family: var(--ds-font-mono);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 6px;
    border-radius: 5px;
    cursor: pointer;
    outline: none;
    transition: all 0.15s;
    min-width: 56px;
    max-width: min(100%, 92px);
}

.drumseq-app .ds-control-select:hover { border-color: var(--ds-gold-dim); }
.drumseq-app .ds-control-select:focus { border-color: var(--ds-gold); box-shadow: 0 0 0 2px var(--ds-gold-glow); }
.drumseq-app .ds-control-select option,
.drumseq-app .ds-control-select optgroup { background: var(--ds-brown-700); color: #fff; }

/* ── Toggle buttons ── */
.drumseq-app .ds-toggle-group {
    display: flex;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--ds-brown-500);
}

.drumseq-app .ds-toggle-btn {
    background: var(--ds-brown-700);
    border: none;
    color: #f0ebe3;
    font-family: var(--ds-font-heading);
    font-size: 11px;
    letter-spacing: 1px;
    padding: 5px 8px;
    min-height: 28px;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.drumseq-app .ds-toggle-btn:not(:last-child) { border-right: 1px solid var(--ds-brown-600); }
.drumseq-app .ds-toggle-btn:hover { background: var(--ds-brown-600); color: var(--ds-gold); }

.drumseq-app .ds-toggle-btn.active {
    background: var(--ds-gold);
    color: var(--ds-brown-900);
    font-weight: 700;
}

.drumseq-app .ds-toggle-btn svg { flex-shrink: 0; }

/* ── Small buttons ── */
.drumseq-app .ds-sm-btn {
    background: var(--ds-brown-700);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-family: var(--ds-font-mono);
    font-size: 15px;
    width: 28px;
    height: 28px;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.12s;
    line-height: 1;
}

.drumseq-app .ds-sm-btn:hover {
    background: var(--ds-brown-600);
    color: var(--ds-gold);
    border-color: var(--ds-gold-dim);
}

.drumseq-app .ds-sm-btn:active { transform: scale(0.9); }

.drumseq-app .ds-sm-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: var(--ds-brown-700);
    color: var(--ds-text-on-brown-muted);
    border-color: var(--ds-brown-600);
}

.drumseq-app .ds-bars-control,
.drumseq-app .ds-zoom-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.drumseq-app .ds-bars-value,
.drumseq-app .ds-zoom-value {
    font-family: var(--ds-font-mono);
    font-size: 12px;
    font-weight: 600;
    color: #ffffff;
    min-width: 28px;
    text-align: center;
}

/* ═══ SEQUENCER BODY ═══ */
.drumseq-app .ds-sequencer-body {
    flex: 1;
    display: flex;
    overflow: hidden;
    min-height: 0;
}

/* ═══ TRACK PANEL ═══ */
.drumseq-app .ds-track-panel {
    width: var(--ds-panel-w);
    min-width: var(--ds-panel-w);
    background: var(--ds-brown-800);
    border-right: 2px solid var(--ds-brown-600);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.drumseq-app .ds-timeline-corner {
    height: var(--ds-timeline-h);
    min-height: var(--ds-timeline-h);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--ds-brown-600);
    background: var(--ds-brown-900);
}

.drumseq-app .ds-corner-label {
    font-family: var(--ds-font-heading);
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--ds-text-on-brown-muted);
}

.drumseq-app .ds-track-list {
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
}
.drumseq-app .ds-track-list::-webkit-scrollbar { display: none; }

/* ── Track Row ── */
.drumseq-app .ds-track-row {
    height: var(--ds-track-h);
    display: flex;
    align-items: center;
    padding: 0 6px;
    gap: 5px;
    border-bottom: 1px solid var(--ds-brown-700);
    transition: background 0.1s;
    cursor: default;
}

.drumseq-app .ds-track-row:hover { background: var(--ds-brown-700); }

.drumseq-app .ds-track-color-bar {
    width: 4px;
    height: 22px;
    border-radius: 2px;
    flex-shrink: 0;
}

.drumseq-app .ds-track-name {
    flex: 1;
    font-family: var(--ds-font-heading);
    font-size: 14px;
    letter-spacing: 1.5px;
    color: var(--ds-text-on-brown-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.drumseq-app .ds-track-name.editing {
    background: var(--ds-brown-900);
    border: 1px solid var(--ds-gold);
    border-radius: 3px;
    padding: 1px 4px;
    outline: none;
    cursor: text;
    color: var(--ds-gold);
    font-family: var(--ds-font-mono);
    font-size: 10px;
}

.drumseq-app .ds-track-btns {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

.drumseq-app .ds-track-btn {
    width: 20px;
    height: 18px;
    border: 1px solid var(--ds-brown-600);
    background: transparent;
    color: var(--ds-text-on-brown-muted);
    font-family: var(--ds-font-heading);
    font-size: 10px;
    letter-spacing: 0.5px;
    border-radius: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.1s;
}

.drumseq-app .ds-track-btn:hover { border-color: var(--ds-gold-dim); color: var(--ds-gold-dim); }

.drumseq-app .ds-track-btn.mute-active {
    background: #D32F2F;
    border-color: #D32F2F;
    color: #fff;
}

.drumseq-app .ds-track-btn.solo-active {
    background: var(--ds-gold);
    border-color: var(--ds-gold);
    color: var(--ds-brown-900);
}

.drumseq-app .ds-track-edit-btn {
    width: auto;
    min-width: 34px;
    padding: 0 4px;
    font-size: 8px;
    letter-spacing: 0.3px;
}

.drumseq-app .ds-track-delete-btn {
    font-size: 14px;
    line-height: 1;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.55);
}

.drumseq-app .ds-track-delete-btn:hover {
    border-color: rgba(244, 67, 54, 0.85);
    color: #f44336;
    background: rgba(244, 67, 54, 0.12);
}

/* ── Add Track ── */
.drumseq-app .ds-track-add-row {
    padding: 6px 6px 8px;
    border-top: 1px solid var(--ds-brown-700);
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.drumseq-app .ds-add-track-select {
    width: 100%;
    box-sizing: border-box;
    background: var(--ds-brown-700);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #fff;
    font-family: var(--ds-font-body);
    font-size: 10px;
    font-weight: 600;
    padding: 4px 3px;
    border-radius: 4px;
    cursor: pointer;
}

.drumseq-app .ds-add-track-select option {
    background: var(--ds-brown-800);
    color: #fff;
}

.drumseq-app .ds-add-track-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 5px 4px;
    background: transparent;
    border: 1px dashed var(--ds-brown-500);
    border-radius: 4px;
    color: #e8dfd0;
    font-family: var(--ds-font-heading);
    font-size: 11px;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: all 0.15s;
}

.drumseq-app .ds-add-track-btn:hover {
    border-color: var(--ds-gold);
    color: var(--ds-gold);
    background: var(--ds-gold-glow);
}

/* ═══ GRID AREA ═══ */
.drumseq-app .ds-grid-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.drumseq-app .ds-timeline-canvas {
    width: 100%;
    height: var(--ds-timeline-h);
    min-height: var(--ds-timeline-h);
    display: block;
    border-bottom: 1px solid var(--ds-brown-600);
    cursor: default;
}

.drumseq-app .ds-grid-scroll {
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
}

.drumseq-app .ds-grid-scroll::-webkit-scrollbar { height: 10px; }
.drumseq-app .ds-grid-scroll::-webkit-scrollbar-track { background: var(--ds-brown-800); }
.drumseq-app .ds-grid-scroll::-webkit-scrollbar-thumb {
    background: var(--ds-brown-500);
    border-radius: 5px;
    border: 2px solid var(--ds-brown-800);
}
.drumseq-app .ds-grid-scroll::-webkit-scrollbar-thumb:hover { background: var(--ds-gold-dim); }

.drumseq-app .ds-grid-canvas {
    display: block;
    cursor: crosshair;
    touch-action: none;
}

.drumseq-app .ds-grid-canvas.tool-move { cursor: default; }

/* ═══ VELOCITY POPUP ═══ */
.drumseq-app .ds-velocity-popup {
    position: fixed;
    background: var(--ds-brown-800);
    border: 2px solid var(--ds-gold);
    border-radius: 8px;
    padding: 8px 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    z-index: 500;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.6), 0 0 16px var(--ds-gold-glow);
    min-width: 38px;
}

.drumseq-app .ds-vel-label {
    font-family: var(--ds-font-heading);
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--ds-text-on-brown-muted);
}

.drumseq-app .ds-vel-slider {
    writing-mode: vertical-lr;
    direction: rtl;
    width: 20px;
    height: 85px;
    accent-color: var(--ds-gold);
    cursor: pointer;
}

.drumseq-app .ds-vel-value {
    font-family: var(--ds-font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--ds-gold);
}

/* ═══ STATUS BAR ═══ */
.drumseq-app .ds-status-bar {
    height: var(--ds-status-h);
    min-height: var(--ds-status-h);
    background: var(--ds-brown-900);
    border-top: 1px solid var(--ds-brown-600);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    flex-shrink: 0;
}

.drumseq-app .ds-status-text {
    font-family: var(--ds-font-mono);
    font-size: 10px;
    color: var(--ds-text-on-brown-muted);
    letter-spacing: 0.3px;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1100px) {
    .drumseq-app .ds-toolbar {
        flex-wrap: wrap;
        height: auto;
        min-height: auto;
        padding: 8px 12px;
        gap: 10px;
        row-gap: 10px;
    }
    .drumseq-app .ds-toolbar-left {
        border: none;
        margin: 0;
        padding-right: 8px;
    }
    .drumseq-app .ds-toolbar-right {
        border: none;
        margin: 0;
        padding-left: 0;
    }
    .drumseq-app .ds-toolbar-center .ds-control-group + .ds-control-group,
    .drumseq-app .ds-toolbar-right .ds-control-group + .ds-control-group {
        padding-left: 10px;
        margin-left: 0;
    }
    .drumseq-app { --ds-panel-w: 108px; }
    .drumseq-app .ds-control-label { display: none; }
}