/* ═══════════════════════════════════════════════════════════════════════
   RPi Audio Mixer — Web UI Styles
   Dark theme optimized for stage use, touch-friendly, responsive
   ═══════════════════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ─────────────────────────────────────────────── */
:root {
    --bg: #0d0d1a;
    --bg-alt: #12122a;
    --panel: #181835;
    --panel-hover: #1e1e42;
    --border: #2a2a50;
    --border-active: #4a4a80;
    --accent: #e94560;
    --accent-dim: #c03050;
    --accent-glow: rgba(233, 69, 96, 0.3);
    --text: #e8e8f0;
    --text-dim: #8888aa;
    --text-faint: #555577;
    --meter-bg: #1a1a35;
    --meter-green: #00cc66;
    --meter-yellow: #ffaa00;
    --meter-red: #ff3333;
    --fader-track: #181835;
    --fader-thumb: #e94560;
    --btn-bg: #222255;
    --btn-hover: #333388;
    --btn-active: #e94560;
    --connected: #00cc66;
    --disconnected: #ff4444;
    --warning: #ffaa00;
    --success: #00cc66;
    --danger: #ff4444;

    /* Touch targets */
    --touch-min: 44px;

    /* Typography */
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace;
    --font-size-xs: 0.625rem;
    --font-size-sm: 0.75rem;
    --font-size-md: 0.875rem;
    --font-size-lg: 1rem;
    --font-size-xl: 1.25rem;
}

/* ── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    height: 100%;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

input, button, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ── App shell ─────────────────────────────────────────────────────────── */
#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
}

/* ── Toolbar ───────────────────────────────────────────────────────────── */
#toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    background: var(--panel);
    border-bottom: 2px solid var(--accent);
    flex-shrink: 0;
    min-height: var(--touch-min);
}

#toolbar h1 {
    font-size: var(--font-size-lg);
    color: var(--accent);
    white-space: nowrap;
    letter-spacing: -0.5px;
}

#connection {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

#connection input {
    padding: 0.35rem 0.5rem;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: var(--font-size-sm);
    width: 110px;
}

#connection input:focus {
    outline: none;
    border-color: var(--accent);
}

.btn {
    padding: 0.35rem 0.7rem;
    background: var(--btn-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    white-space: nowrap;
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
}

.btn:hover { background: var(--btn-hover); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dim); }

.status {
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    white-space: nowrap;
}

.status.connected { color: var(--connected); }
.status.connecting { color: var(--warning); animation: pulse 1s infinite; }
.status.disconnected { color: var(--disconnected); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ── Tab bar ───────────────────────────────────────────────────────────── */
#tabs {
    display: flex;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab {
    flex: 1;
    min-width: 70px;
    padding: 0.5rem 0.5rem;
    background: none;
    color: var(--text-dim);
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    transition: color 0.15s, border-color 0.15s;
}

.tab:hover { color: var(--text); }
.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-icon { font-size: 1rem; }

/* ── Transport bar ──────────────────────────────────────────────────────── */
#transport-bar {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.35rem 0.75rem;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    min-height: var(--touch-min);
    overflow-x: auto;
}

.tbtn {
    width: var(--touch-min);
    height: var(--touch-min);
    padding: 0;
    background: var(--btn-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tbtn:hover { background: var(--btn-hover); }
.tbtn:active { transform: scale(0.93); }
.tbtn.active { background: var(--accent); border-color: var(--accent); }
.tbtn.recording { background: var(--danger); animation: pulse 1.2s infinite; }

.transport-info {
    font-size: var(--font-size-sm);
    color: var(--text-dim);
    white-space: nowrap;
    margin-left: 0.5rem;
    font-variant-numeric: tabular-nums;
}

.transport-info.dimmed { color: var(--text-faint); font-size: var(--font-size-xs); }

/* ── Main content ──────────────────────────────────────────────────────── */
#view-container {
    flex: 1;
    overflow: hidden;
    position: relative;
    min-height: 0;
}

.view {
    display: none;
    height: 100%;
    overflow: auto;
}

.view.active { display: flex; flex-direction: column; }

/* ── Mixer View ────────────────────────────────────────────────────────── */
#mixer-scroll {
    display: flex;
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0.5rem;
    gap: 0.4rem;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    min-height: 0;
}

#channels {
    display: flex;
    gap: 0.35rem;
    flex-shrink: 0;
}

/* Channel strip */
.channel-strip {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--panel);
    border-radius: 8px;
    padding: 0.35rem;
    min-width: 72px;
    width: 80px;
    flex-shrink: 0;
    gap: 0.2rem;
    border: 1px solid var(--border);
    transition: border-color 0.2s;
    position: relative;
}

.channel-strip.soloed { border-color: var(--warning); }
.channel-strip.muted { opacity: 0.6; }

.chan-label {
    font-size: var(--font-size-xs);
    color: var(--accent);
    font-weight: 600;
    white-space: nowrap;
    text-align: center;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    min-height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chan-label:hover { color: var(--text); }

/* Fader */
.fader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    min-height: 100px;
    gap: 2px;
    position: relative;
}

.fader-container input[type="range"] {
    -webkit-appearance: slider-vertical;
    appearance: slider-vertical;
    width: 28px;
    flex: 1;
    min-height: 80px;
    background: var(--fader-track);
    accent-color: var(--fader-thumb);
    cursor: pointer;
    margin: 0;
    border-radius: 4px;
}

.fader-container input[type="range"]:active { accent-color: var(--accent-glow); }

.fader-label {
    font-size: 0.6rem;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fader-db {
    font-size: var(--font-size-xs);
    color: var(--text-dim);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    min-height: 16px;
}

/* Meter (vertical) */
.meter-v {
    width: 8px;
    height: 100%;
    background: var(--meter-bg);
    border-radius: 4px;
    position: absolute;
    right: 2px;
    top: 0;
    overflow: hidden;
    z-index: 1;
}

.meter-v .meter-fill {
    width: 100%;
    height: 0%;
    border-radius: 4px;
    transition: height 0.08s linear, background 0.3s;
    position: absolute;
    bottom: 0;
}

.meter-fill.low { background: var(--meter-green); }
.meter-fill.mid { background: var(--meter-yellow); }
.meter-fill.high { background: var(--meter-red); }

/* Channel buttons */
.chan-buttons {
    display: flex;
    gap: 3px;
    width: 100%;
}

.chan-btn {
    flex: 1;
    padding: 0.2rem;
    font-size: 0.6rem;
    font-weight: 700;
    background: var(--btn-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    min-height: 28px;
    letter-spacing: 0.5px;
}

.chan-btn:hover { background: var(--btn-hover); }
.chan-btn:active { transform: scale(0.95); }
.chan-btn.on { background: var(--accent); border-color: var(--accent); }
.chan-btn.solo-on { background: var(--warning); color: #000; border-color: var(--warning); }

.chan-extra {
    display: flex;
    gap: 3px;
    width: 100%;
}

.chan-extra-btn {
    flex: 1;
    padding: 0.15rem;
    font-size: 0.55rem;
    background: var(--btn-bg);
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    min-height: 24px;
}

.chan-extra-btn:hover { color: var(--text); background: var(--btn-hover); }
.chan-extra-btn.eq-on { color: var(--accent); border-color: var(--accent-dim); }

/* Master section */
#master-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--panel);
    border-radius: 8px;
    padding: 0.35rem;
    min-width: 85px;
    flex-shrink: 0;
    border: 1px solid var(--border);
    border-left: 2px solid var(--accent);
    gap: 0.2rem;
}

.section-label {
    font-size: var(--font-size-xs);
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.master-buttons {
    display: flex;
    gap: 3px;
    width: 100%;
}

.toggle-btn {
    flex: 1;
    padding: 0.2rem;
    font-size: 0.6rem;
    font-weight: 700;
    background: var(--btn-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    min-height: 28px;
}

.toggle-btn:hover { background: var(--btn-hover); }
.toggle-btn:active { transform: scale(0.95); }
.toggle-btn.on { background: var(--accent); border-color: var(--accent); }

.master-buses {
    margin-top: 0.3rem;
    font-size: var(--font-size-xs);
    color: var(--text-faint);
    text-align: center;
    width: 100%;
    overflow: hidden;
}

/* ── Routing View ──────────────────────────────────────────────────────── */
.routing-layout {
    display: flex;
    flex: 1;
    gap: 0.5rem;
    padding: 0.5rem;
    overflow: hidden;
    min-height: 0;
}

.routing-panel {
    display: flex;
    flex-direction: column;
    background: var(--panel);
    border-radius: 8px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.routing-panel h3 {
    font-size: var(--font-size-sm);
    color: var(--accent);
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    text-align: center;
}

.sources-panel, .dests-panel {
    flex: 0 0 180px;
    min-width: 100px;
}

.matrix-panel {
    flex: 1;
    min-width: 200px;
}

.routing-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.25rem;
}

.routing-node {
    padding: 0.4rem 0.5rem;
    margin: 2px 0;
    background: var(--btn-bg);
    border-radius: 4px;
    cursor: grab;
    font-size: var(--font-size-xs);
    color: var(--text);
    border: 1px solid transparent;
    min-height: var(--touch-min);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.routing-node:hover { border-color: var(--accent); }
.routing-node:active { cursor: grabbing; }
.routing-node.dragging { opacity: 0.5; }
.routing-node.drop-target { border-color: var(--accent); background: var(--accent-glow); }

.routing-node-type {
    font-size: 0.55rem;
    color: var(--text-faint);
    text-transform: uppercase;
}

.routing-grid {
    flex: 1;
    overflow: auto;
    padding: 0.5rem;
}

.routing-edge {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.3rem 0.5rem;
    margin: 2px 0;
    background: var(--bg-alt);
    border-radius: 4px;
    font-size: var(--font-size-xs);
    border: 1px solid var(--border);
    min-height: 32px;
    gap: 0.5rem;
}

.routing-edge:hover { border-color: var(--accent-dim); }

.routing-edge-path {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    overflow: hidden;
}

.routing-edge-path .arrow { color: var(--accent); flex-shrink: 0; }
.routing-edge-path .src { color: var(--text); }
.routing-edge-path .dst { color: var(--text-dim); }

.routing-edge-actions {
    display: flex;
    gap: 3px;
}

.routing-edge-actions button {
    padding: 0.15rem 0.4rem;
    font-size: 0.55rem;
    background: var(--btn-bg);
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
}

.routing-edge-actions button:hover { color: var(--text); background: var(--btn-hover); }

.routing-edge.muted { opacity: 0.4; }

/* ── Plugins View ──────────────────────────────────────────────────────── */
.plugins-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    flex-wrap: wrap;
}

.plugins-header h3 {
    font-size: var(--font-size-md);
    color: var(--accent);
}

.plugins-grid {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.5rem;
    align-content: start;
}

.plugin-card {
    background: var(--panel);
    border-radius: 8px;
    border: 1px solid var(--border);
    padding: 0.5rem;
}

.plugin-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
}

.plugin-card-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text);
}

.plugin-card-role {
    font-size: var(--font-size-xs);
    color: var(--text-faint);
    text-transform: uppercase;
}

.plugin-card-channel {
    font-size: var(--font-size-xs);
    color: var(--accent);
}

.plugin-bypass-btn {
    padding: 0.2rem 0.5rem;
    font-size: var(--font-size-xs);
    background: var(--btn-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    min-height: 28px;
}

.plugin-bypass-btn:hover { background: var(--btn-hover); }
.plugin-bypass-btn.bypassed { background: var(--danger); border-color: var(--danger); }

.plugin-params {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.plugin-param {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.plugin-param-name {
    font-size: var(--font-size-xs);
    color: var(--text-dim);
    width: 70px;
    flex-shrink: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.plugin-param input[type="range"] {
    flex: 1;
    accent-color: var(--accent);
    height: 16px;
}

.plugin-param-value {
    font-size: var(--font-size-xs);
    color: var(--text);
    width: 40px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* ── Sessions View ─────────────────────────────────────────────────────── */
.sessions-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sessions-header h3 {
    font-size: var(--font-size-md);
    color: var(--accent);
}

.sessions-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.text-input {
    padding: 0.35rem 0.5rem;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: var(--font-size-sm);
    min-height: var(--touch-min);
}

.text-input:focus {
    outline: none;
    border-color: var(--accent);
}

.sessions-grid {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.4rem;
    align-content: start;
}

.session-card {
    background: var(--panel);
    border-radius: 8px;
    border: 1px solid var(--border);
    padding: 0.5rem;
    cursor: pointer;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.session-card:hover { border-color: var(--accent-dim); }
.session-card.loading { opacity: 0.5; pointer-events: none; }

.session-card-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text);
}

.session-card-actions {
    display: flex;
    gap: 3px;
    margin-top: 0.3rem;
}

.session-card-actions button {
    padding: 0.2rem 0.5rem;
    font-size: var(--font-size-xs);
    background: var(--btn-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    min-height: 28px;
}

.session-card-actions button:hover { background: var(--btn-hover); }
.session-card-actions button.danger { color: var(--danger); }
.session-card-actions button.danger:hover { background: var(--danger); color: var(--text); }

/* ── Modal (EQ) ────────────────────────────────────────────────────────── */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal.hidden { display: none; }

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
}

.modal-content {
    position: relative;
    background: var(--panel);
    border: 1px solid var(--border-active);
    border-radius: 12px;
    padding: 1rem;
    width: min(400px, 95vw);
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.modal-header h3 {
    font-size: var(--font-size-lg);
    color: var(--accent);
}

.modal-close {
    width: 32px;
    height: 32px;
    padding: 0;
    background: var(--btn-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover { background: var(--danger); }

.eq-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.eq-toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
}

.eq-bands {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.eq-band {
    background: var(--bg-alt);
    border-radius: 6px;
    padding: 0.4rem;
    border: 1px solid var(--border);
}

.eq-band-header {
    font-size: var(--font-size-xs);
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.param-rows {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.param-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.param-row-name {
    font-size: var(--font-size-xs);
    color: var(--text-dim);
    width: 50px;
    flex-shrink: 0;
}

.param-row input[type="range"] {
    flex: 1;
    accent-color: var(--accent);
    height: 16px;
}

.param-row-value {
    font-size: var(--font-size-xs);
    color: var(--text);
    width: 45px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

#dyn-controls h4 {
    font-size: var(--font-size-sm);
    color: var(--text-dim);
    margin: 0.4rem 0 0.2rem;
    border-top: 1px solid var(--border);
    padding-top: 0.4rem;
}

/* ── Log panel ─────────────────────────────────────────────────────────── */
#log-panel {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    max-height: 40vh;
}

#log-header {
    padding: 0.3rem 0.75rem;
    cursor: pointer;
    font-size: var(--font-size-xs);
    color: var(--text-faint);
}

#log-header:hover { color: var(--text-dim); }

#log-body {
    max-height: 120px;
    overflow-y: auto;
    transition: max-height 0.2s;
}

#log-body.collapsed { max-height: 0; overflow: hidden; }

#log {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-dim);
    padding: 0 0.75rem 0.5rem;
    line-height: 1.4;
}

.log-entry {
    padding: 0.1rem 0;
    border-bottom: 1px solid var(--border);
}

.log-param { color: var(--accent); }
.log-state { color: var(--connected); }
.log-error { color: var(--danger); }
.log-info { color: var(--text-faint); }
.log-ws { color: var(--warning); }

/* ── Locate dialog ─────────────────────────────────────────────────────── */
#locate-dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--panel);
    border: 1px solid var(--border-active);
    border-radius: 12px;
    padding: 1rem;
    z-index: 500;
}

#locate-dialog.hidden { display: none; }

.locate-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.locate-row input {
    width: 60px;
    padding: 0.3rem;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: var(--font-size-md);
    text-align: center;
}

.locate-row span { color: var(--text-dim); }

/* ── Select inputs ─────────────────────────────────────────────────────── */
select {
    padding: 0.35rem 0.5rem;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: var(--font-size-sm);
    min-height: var(--touch-min);
    cursor: pointer;
}

select:focus { outline: none; border-color: var(--accent); }

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

/* Phone portrait (< 480px) */
@media (max-width: 479px) {
    #toolbar { padding: 0.35rem 0.5rem; }
    #toolbar h1 { font-size: var(--font-size-sm); }
    #connection { gap: 0.2rem; }
    #connection input { width: 80px; font-size: var(--font-size-xs); }
    .btn { padding: 0.3rem 0.5rem; font-size: var(--font-size-xs); }

    .tab { font-size: 0.65rem; padding: 0.4rem 0.3rem; min-width: 55px; }
    .tab-icon { display: none; }

    .channel-strip { min-width: 58px; width: 66px; padding: 0.2rem; }
    .fader-container input[type="range"] { width: 22px; }
    .meter-v { width: 5px; right: 1px; }

    .routing-layout { flex-direction: column; }
    .sources-panel, .dests-panel { flex: 0 0 auto; max-height: 120px; }

    .plugins-grid { grid-template-columns: 1fr; }
    .sessions-grid { grid-template-columns: 1fr; }

    #transport-bar { gap: 0.15rem; padding: 0.25rem 0.4rem; }
    .tbtn { width: 36px; height: 36px; font-size: 0.9rem; }
    .transport-info { font-size: var(--font-size-xs); margin-left: 0.2rem; }

    .modal-content { width: 95vw; padding: 0.75rem; }
}

/* Phone landscape / small tablet (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .channel-strip { min-width: 64px; width: 74px; }

    .routing-layout { flex-direction: row; flex-wrap: wrap; }
    .sources-panel, .dests-panel { flex: 1 1 120px; max-height: 200px; }
    .matrix-panel { flex: 2 1 200px; }

    .plugins-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
}

/* Tablet (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .channel-strip { min-width: 76px; width: 84px; }
    .plugins-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
    .sessions-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .channel-strip { min-width: 80px; width: 88px; }
    .plugins-grid { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
    .sessions-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    .routing-layout { max-width: 1400px; margin: 0 auto; }
}

/* ── High contrast / accessibility ─────────────────────────────────────── */
@media (prefers-contrast: high) {
    :root {
        --border: #555;
        --border-active: #888;
        --text-dim: #bbb;
    }
}

/* ── Reduced motion ────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}