/* CSS Variables */
:root {
    --bg-dark: #0a0a0f;
    --bg-surface: #12121a;
    --bg-elevated: #1a1a25;
    --bg-hover: #252535;
    --bg-input: #0d0d14;

    --accent-primary: #00f0ff;
    --accent-secondary: #ff00aa;
    --accent-warning: #ffaa00;
    --accent-success: #00ff88;
    --accent-danger: #ff4444;
    --accent-caution: #ffff00;
    --accent-glow: rgba(0, 240, 255, 0.3);
    --accent-glow-secondary: rgba(255, 0, 170, 0.3);
    --accent-danger-glow: rgba(255, 68, 68, 0.3);

    /* Slider/control surface colors */
    --slider-thumb-base: #2a2a3a;
    --slider-thumb-highlight: #3a3a4a;
    --slider-thumb-hover: #4a4a5a;
    --slider-thumb-active: #5a5a6a;
    --track-mid: #333333;

    --text-primary: #ffffff;
    --text-secondary: #9999bb;
    --text-muted: #666677;

    --border-subtle: #2a2a3a;
    --border-accent: var(--accent-primary);

    --font-display: 'Orbitron', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Standardized border-radius scale */
    --radius-xs: 3px;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 10px;
    --radius-xl: 14px;

    /* Standardized spacing scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 0.75rem;
    --space-lg: 1rem;
    --space-xl: 1.5rem;

    --transition-fast: 0.12s ease;
    --transition-med: 0.25s ease;

    /* Button base styles */
    --btn-padding-sm: 0.3rem 0.5rem;
    --btn-padding-md: 0.4rem 0.65rem;
    --btn-padding-lg: 0.5rem 0.85rem;
}

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

html {
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-mono);
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* App Container - Fixed viewport layout */
/* Rows: waveform, content (decks OR library) */
.app {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0;
    height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 0;
    overflow: hidden;
}

/* View Mode: Decks visible (default), Library hidden */
.app .library-wrapper {
    display: none;
}

/* View Mode: Library visible, Decks hidden */
.app.library-mode .decks-container {
    display: none !important;
}

.app.library-mode .library-wrapper {
    display: grid;
}

/* Focus Mode Variables */
:root {
    --focus-mode: 0;
    --header-opacity: calc(1 - var(--focus-mode));
    --library-opacity: calc(1 - var(--focus-mode));
    --secondary-opacity: calc(1 - (var(--focus-mode) * 0.7));
    --focus-transition: 0.3s ease-out;
}

body.focus-mode {
    --focus-mode: 1;
}

/* Header - hideable in focus mode */
.header {
    opacity: var(--header-opacity);
    max-height: calc((1 - var(--focus-mode)) * 60px + 0.001px);
    overflow: hidden;
    transition: opacity var(--focus-transition), max-height var(--focus-transition);
    pointer-events: auto;
}

body.focus-mode .header {
    pointer-events: none;
}

/* Focus Mode Exit Button */
.focus-mode-exit {
    position: fixed;
    top: 8px;
    right: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
    padding: 4px 12px;
    border-radius: 4px;
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: opacity 0.2s;
    opacity: 0.5;
    z-index: 1000;
    display: none;
}

body.focus-mode .focus-mode-exit {
    display: block;
}

.focus-mode-exit:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.15);
}

/* Focus mode forces decks view (library mode disabled) */
body.focus-mode .app.library-mode .library-wrapper {
    display: none;
}

body.focus-mode .app.library-mode .decks-container {
    display: grid !important;
}

/* Secondary controls - dimmed in focus mode */
body.focus-mode .eq-group,
body.focus-mode .effects-section,
body.focus-mode .control-group,
body.focus-mode .grid-editor,
body.focus-mode .hot-cues,
body.focus-mode .pad-mode-selector {
    opacity: var(--secondary-opacity);
    transition: opacity 0.15s ease-out;
}

/* Reveal dimmed elements on hover */
body.focus-mode .eq-group:hover,
body.focus-mode .effects-section:hover,
body.focus-mode .control-group:hover,
body.focus-mode .grid-editor:hover,
body.focus-mode .hot-cues:hover,
body.focus-mode .pad-mode-selector:hover {
    opacity: 1;
}

/* Essential controls stay visible in focus mode */
body.focus-mode .transport,
body.focus-mode .waveform-container,
body.focus-mode .dual-waveform-container,
body.focus-mode .crossfader-section,
body.focus-mode .vu-meters {
    opacity: 1;
}

/* Focus indicator remains visible */
body.focus-mode :focus-visible {
    outline: 2px solid var(--deck-color, cyan);
    outline-offset: 2px;
}

body.focus-mode *:focus-within {
    opacity: 1 !important;
}

/* Dual Waveform Container */
.dual-waveform-container {
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    gap: 0;
    min-height: 244px;  /* 24px overview + 220px main */
    overflow: hidden;
    /* Prevent canvas width feedback loop */
    min-width: 0;
    /* Break out of .app container to span full viewport width */
    width: 100vw;
    max-width: 100vw;
    margin-left: calc(-1 * ((100vw - min(100vw, 1600px)) / 2));
    margin-right: calc(-1 * ((100vw - min(100vw, 1600px)) / 2));
    padding: 0;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid var(--border-subtle);
    box-sizing: border-box;
}

.dual-waveform-overview-wrapper {
    position: relative;
    border-bottom: 1px solid var(--border-subtle);
}

.dual-waveform-overview {
    /* Full width, no border radius */
    display: block;
}

.dual-waveform-main {
    flex: 1;
}

.dual-waveform-main-wrapper {
    flex: 1;
    position: relative;
}

/* Horizontal separator between deck A and deck B waveforms */
.waveform-deck-separator {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: var(--border-subtle);
    pointer-events: none;
    z-index: 5;
}

/* Vertical playhead at center of main waveform */
.waveform-playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 1px;
    background: var(--text-primary);
    pointer-events: none;
    z-index: 6;
    transform: translateX(-50%);
}

/* Beatgrid Overlay Controls */
.beatgrid-overlay {
    position: absolute;
    left: 8px;
    z-index: 10;
    display: flex;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s, visibility 0.15s;
    pointer-events: none;
}

.beatgrid-overlay.visible {
    opacity: 0.7;
    visibility: visible;
    pointer-events: auto;
}

.beatgrid-overlay.visible:hover {
    opacity: 1;
}

.beatgrid-overlay-a {
    top: 8px;
}

.beatgrid-overlay-b {
    bottom: 8px;
}

.beatgrid-controls {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    border-radius: 4px;
    padding: 4px 6px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.beatgrid-bpm-group {
    display: flex;
    align-items: center;
    gap: 2px;
}

.beatgrid-btn-group {
    display: flex;
    gap: 1px;
}

.bg-bpm {
    font-family: var(--font-mono, monospace);
    font-size: 10px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    min-width: 36px;
    text-align: center;
    padding: 0 4px;
}

.bg-bpm-input {
    font-family: var(--font-mono, monospace);
    font-size: 10px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    width: 54px;
    text-align: center;
    padding: 2px 4px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    outline: none;
    -moz-appearance: textfield; /* Hide spinner in Firefox */
}

.bg-bpm-input::-webkit-outer-spin-button,
.bg-bpm-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.bg-bpm-input:focus {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(0, 0, 0, 0.6);
}

.bg-bpm-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

/* Deck-specific accent colors for BPM input */
.beatgrid-overlay-a .bg-bpm-input {
    color: var(--accent-primary, #00f0ff);
}

.beatgrid-overlay-b .bg-bpm-input {
    color: var(--accent-secondary, #ff00aa);
}

.bg-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 10px;
    font-weight: 600;
    padding: 4px 6px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
    line-height: 1;
}

.bg-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

.bg-btn:active:not(:disabled) {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(0.96);
}

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

.bg-btn-lock {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 5px;
}

.bg-btn-lock.active {
    background: rgba(255, 170, 0, 0.3);
    color: var(--accent-warning);
}

.bg-btn-lock.active:hover {
    background: rgba(255, 170, 0, 0.4);
}

/* Deck-specific accent colors */
.beatgrid-overlay-a .bg-bpm {
    color: var(--accent-primary, #00f0ff);
}

.beatgrid-overlay-b .bg-bpm {
    color: var(--accent-secondary, #ff00aa);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 0.15em;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px var(--accent-glow);
    margin-bottom: 0.25rem;
}

.tagline {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3em;
}

/* Decks Container - Edge-to-Edge Layout */
.decks-container {
    display: grid !important;
    grid-template-columns: 1fr auto 1fr !important;
    gap: 0;
    align-items: stretch;
    /* Break out of .app container to span full viewport width */
    width: 100vw;
    margin-left: calc(-1 * ((100vw - min(100vw, 1600px)) / 2));
    margin-right: calc(-1 * ((100vw - min(100vw, 1600px)) / 2));
    /* No border-top: waveform has border-bottom */
}

/* Ensure deck and mixer are direct grid items */
.decks-container > .deck,
.decks-container > .mixer-panel {
    min-width: 0; /* Prevent overflow */
}

/* Single Deck - Edge-to-Edge */
.deck {
    --deck-color: var(--accent-primary);
    --deck-glow: var(--accent-glow);

    background: var(--bg-surface);
    border-radius: 0;
    padding: 0;
    border: none;
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 0;
    transition: background-color var(--transition-fast);
}

.deck[data-deck="B"] {
    border-right: none;
    border-left: 1px solid var(--border-subtle);
}

/* Deck Color Theming */
.deck[data-deck="A"] {
    --deck-color: var(--accent-primary);
    --deck-glow: var(--accent-glow);
}

.deck[data-deck="B"] {
    --deck-color: var(--accent-secondary);
    --deck-glow: var(--accent-glow-secondary);
}

/* Focused Deck - subtle highlight instead of border */
.deck.focused {
    background: var(--bg-elevated);
}

/* Deck Label - thin bar at top */
.deck-label {
    display: none; /* Now integrated into compact header */
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-med);
    position: relative;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--deck-color);
    background: rgba(0, 240, 255, 0.03);
}

.deck[data-deck="B"] .drop-zone:hover,
.deck[data-deck="B"] .drop-zone.dragover {
    background: rgba(255, 0, 170, 0.03);
}

.drop-zone.dragover {
    transform: scale(1.01);
}

.drop-zone.has-file {
    border-style: solid;
    border-color: var(--deck-color);
    padding: 0.75rem;
}

.drop-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.drop-icon {
    width: 32px;
    height: 32px;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.drop-zone:hover .drop-icon {
    color: var(--deck-color);
}

.drop-zone p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.drop-hint {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.drop-zone.has-file .drop-zone-content {
    display: none;
}

/* Track Info */
.track-info {
    display: none;
    padding: 0.35rem 0.5rem;
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
    text-align: center;
}

.track-info.visible {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.track-name {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--deck-color);
    letter-spacing: 0.05em;
    flex: 1;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* BPM Display */
.bpm-display {
    display: none;
    align-items: baseline;
    gap: var(--space-xs);
    flex-shrink: 0;
}

.bpm-display.visible {
    display: flex;
}

.bpm-value {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--deck-color);
    text-shadow: 0 0 10px var(--deck-glow);
}

.bpm-label {
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.bpm-original {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--text-muted);
    margin-left: 0.2rem;
}

/* Grid Editor */
.grid-editor {
    display: none;
    flex-direction: column;
    gap: var(--space-sm);
    padding: 0.5rem;
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    margin-top: 0.25rem;
}

.grid-editor.visible {
    display: flex;
}

.grid-editor.locked {
    opacity: 0.6;
}

.grid-editor.locked .bpm-adjust,
.grid-editor.locked .bpm-scale,
.grid-editor.locked .tap-tempo-btn,
.grid-editor.locked .shift-controls,
.grid-editor.locked .downbeat-btn {
    pointer-events: none;
    opacity: 0.5;
}

.grid-editor.locked .lock-btn {
    opacity: 1;
}

.grid-editor-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* BPM Adjust */
.bpm-adjust {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.bpm-btn {
    width: 26px;
    height: 26px;
    padding: 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.bpm-btn:hover {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--text-primary);
}

.bpm-btn:active {
    background: var(--deck-color);
    color: var(--bg-dark);
    transform: scale(0.95);
}

.bpm-input {
    width: 72px;
    height: 26px;
    padding: 0 0.35rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--deck-color);
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 700;
    text-align: center;
}

.bpm-input:focus {
    outline: none;
    border-color: var(--deck-color);
    box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.15);
}

/* BPM Scale buttons (halve/double) */
.bpm-scale {
    display: flex;
    gap: var(--space-xs);
}

.bpm-scale-btn {
    padding: 0.3rem 0.55rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.bpm-scale-btn:hover {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--text-primary);
}

.bpm-scale-btn:active {
    transform: scale(0.96);
}

/* Tap Tempo */
.tap-tempo-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.35rem 0.8rem;
    border: 1.5px solid var(--deck-color);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--deck-color);
    font-family: var(--font-display);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tap-tempo-btn:hover {
    background: rgba(0, 240, 255, 0.08);
    box-shadow: 0 0 14px var(--deck-glow);
}

.tap-tempo-btn:active {
    background: var(--deck-color);
    color: var(--bg-dark);
    transform: scale(0.97);
}

.tap-count {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    min-width: 14px;
}

/* Grid Shift Controls */
.shift-controls {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.shift-label {
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    padding: 0 var(--space-xs);
}

.shift-btn {
    width: 28px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    font-size: 0.62rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.shift-btn:hover {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--text-primary);
}

.shift-btn:active {
    background: var(--deck-color);
    color: var(--bg-dark);
    transform: scale(0.95);
}

/* Set Downbeat Button */
.downbeat-btn {
    padding: 0.35rem 0.6rem;
    border: 1px solid var(--accent-warning);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--accent-warning);
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.downbeat-btn:hover {
    background: rgba(255, 170, 0, 0.12);
    box-shadow: 0 0 12px rgba(255, 170, 0, 0.25);
}

.downbeat-btn:active {
    background: var(--accent-warning);
    color: var(--bg-dark);
    transform: scale(0.97);
}

/* Lock Grid Button */
.lock-btn {
    width: 30px;
    height: 30px;
    padding: 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lock-btn svg {
    width: 15px;
    height: 15px;
}

.lock-btn:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

.lock-btn.active {
    background: rgba(255, 170, 0, 0.2);
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

/* Waveform */
.waveform-container {
    position: relative;
    height: 70px;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    overflow: visible;
    cursor: pointer;
}

/* Scratch-enabled waveform container */
.scratch-waveform-container {
    cursor: crosshair;
    user-select: none;
    touch-action: none;
    height: 100px;
}

.scratch-waveform-container.scratching {
    cursor: grabbing;
    outline: 2px solid var(--deck-color);
    outline-offset: -2px;
    box-shadow: 0 0 20px var(--deck-glow);
}

.waveform-container .waveform {
    /* Clip the canvas itself to maintain rounded corners */
    border-radius: var(--radius-md);
}

.waveform {
    width: 100%;
    height: 100%;
    display: block;
}

.playhead {
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 100%;
    background: var(--deck-color);
    box-shadow: 0 0 10px var(--deck-color);
    pointer-events: none;
    transition: left 0.05s linear;
}

/* Waveform Mode Toggle */
.waveform-controls {
    position: absolute !important;
    top: 6px !important;
    right: 6px !important;
    left: auto !important;
    bottom: auto !important;
    width: auto !important;
    z-index: 100;
    display: block;
    pointer-events: auto;
}

.waveform-mode-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: rgba(255, 255, 255, 0.9);
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 4px 10px;
    border-radius: 3px;
    cursor: pointer;
    transition: all var(--transition-fast);
    pointer-events: auto;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.waveform-mode-btn:hover {
    border-color: var(--deck-color);
    color: var(--deck-color);
    background: rgba(0, 0, 0, 0.8);
}

.waveform-mode-btn.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
    box-shadow: 0 0 8px var(--deck-glow);
}

.waveform-mode-btn .mode-label {
    display: inline-block;
    min-width: 50px;
    text-align: center;
}

/* Waveform Zoom Button (dynamic mode only) */
.waveform-zoom-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: rgba(255, 255, 255, 0.8);
    font-family: var(--font-display);
    font-size: 0.5rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 3px 8px;
    border-radius: 3px;
    cursor: pointer;
    transition: all var(--transition-fast);
    pointer-events: auto;
    margin-left: 4px;
}

.waveform-zoom-btn:hover {
    border-color: var(--deck-color);
    color: var(--deck-color);
    background: rgba(0, 0, 0, 0.8);
}

.waveform-zoom-btn .zoom-label {
    display: inline-block;
    min-width: 45px;
    text-align: center;
}

/* Debug Overlay - Audio-Visual Sync Monitoring */
.debug-overlay {
    position: absolute;
    bottom: 6px;
    left: 6px;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: rgba(0, 0, 0, 0.9);
    border: 1px solid rgba(255, 170, 0, 0.6);
    border-radius: 4px;
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 0.55rem;
    color: var(--accent-warning);
    pointer-events: auto;
}

.debug-latency {
    display: flex;
    justify-content: space-between;
    gap: 8px;
}

.debug-calibration {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    padding-top: 4px;
    border-top: 1px solid rgba(255, 170, 0, 0.3);
}

.debug-calibration input[type="range"] {
    width: 60px;
    height: 12px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    cursor: pointer;
}

.debug-calibration input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 8px;
    height: 12px;
    background: var(--accent-warning);
    border-radius: 2px;
    cursor: pointer;
}

.debug-calibration input[type="range"]::-moz-range-thumb {
    width: 8px;
    height: 12px;
    background: var(--accent-warning);
    border-radius: 2px;
    border: none;
    cursor: pointer;
}

.debug-label {
    color: var(--text-secondary);
}

/* Time Display */
.time-display {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.time-current,
.time-total {
    min-width: 40px;
    color: var(--text-secondary);
}

.time-current {
    text-align: right;
}

.time-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-elevated);
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
}

.time-progress {
    height: 100%;
    width: 0%;
    background: var(--deck-color);
    border-radius: 2px;
    transition: width 0.1s linear;
}

/* Transport Controls */
.transport {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
}

.transport-btn {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.transport-btn:hover {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

.transport-btn:active {
    transform: scale(0.94);
}

.transport-btn svg {
    width: 18px;
    height: 18px;
}

.play-btn {
    width: 48px;
    height: 48px;
    background: var(--deck-color);
    border: 2px solid var(--deck-color);
    color: var(--bg-dark);
}

.play-btn:hover {
    background: var(--deck-color);
    color: var(--bg-dark);
    transform: scale(1.04);
    box-shadow: 0 0 24px var(--deck-glow);
}

.play-btn:active {
    transform: scale(0.96);
}

.play-btn svg {
    width: 22px;
    height: 22px;
}

/* Sync Button */
.sync-btn {
    width: auto;
    padding: 0 14px;
    border-radius: var(--radius-md);
    margin-left: var(--space-sm);
    transition: all var(--transition-fast);
}

.sync-btn .sync-label {
    font-family: var(--font-display);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.sync-btn:hover {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

/* Active sync state - continuously synced to master */
.sync-btn.synced {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
    box-shadow: 0 0 14px var(--deck-glow);
    animation: sync-pulse 2s ease-in-out infinite;
}

.sync-btn.synced:hover {
    background: var(--deck-color);
    color: var(--bg-dark);
}

@keyframes sync-pulse {
    0%, 100% { box-shadow: 0 0 10px var(--deck-glow); }
    50% { box-shadow: 0 0 20px var(--deck-glow); }
}

/* Master Tempo (Key Lock) Button */
.mt-btn {
    width: auto;
    padding: 0 14px;
    border-radius: var(--radius-md);
    margin-left: var(--space-xs);
    transition: all var(--transition-fast);
}

.mt-btn:hover {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

/* Active MT state */
.mt-btn.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
    box-shadow: 0 0 14px var(--deck-glow);
}

.mt-btn.active:hover {
    background: var(--deck-color);
    color: var(--bg-dark);
}

/* Hot Cue Pads */
.hot-cues {
    display: flex;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-xs) 0;
}

.cue-pad {
    width: 34px;
    height: 34px;
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cue-pad:hover {
    transform: scale(1.04);
    border-color: var(--text-secondary);
    color: var(--text-secondary);
    background: var(--bg-hover);
}

.cue-pad:active {
    transform: scale(0.94);
}

.cue-pad.set {
    border-color: var(--cue-color, var(--deck-color));
    color: var(--cue-color, var(--deck-color));
    background: color-mix(in srgb, var(--cue-color, var(--deck-color)) 12%, var(--bg-elevated));
    box-shadow: 0 0 8px color-mix(in srgb, var(--cue-color, var(--deck-color)) 35%, transparent);
}

.cue-pad.set:hover {
    transform: scale(1.06);
    box-shadow: 0 0 14px color-mix(in srgb, var(--cue-color, var(--deck-color)) 50%, transparent);
}

/* Responsive: smaller pads on mobile */
@media (max-width: 480px) {
    .cue-pad {
        width: 32px;
        height: 32px;
        font-size: 0.6rem;
    }
    
    .hot-cues {
        gap: 4px;
    }
}

/* ==================== LOOP CONTROLS ==================== */

.loop-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-sm);
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-md);
}

.loop-buttons {
    display: flex;
    gap: var(--space-xs);
}

.loop-btn {
    padding: var(--btn-padding-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.loop-btn:hover {
    border-color: var(--deck-color);
    color: var(--deck-color);
    background: var(--bg-hover);
}

.loop-btn.active {
    background: var(--accent-warning);
    color: var(--bg-dark);
    border-color: var(--accent-warning);
}

.loop-btn.pending {
    background: rgba(255, 200, 0, 0.35);
    color: var(--accent-warning);
    border-color: var(--accent-warning);
    animation: loop-pulse 0.5s ease-in-out infinite alternate;
}

@keyframes loop-pulse {
    from { opacity: 0.7; }
    to { opacity: 1; }
}

.loop-exit.active {
    background: var(--accent-warning);
    color: var(--bg-dark);
    border-color: var(--accent-warning);
    animation: loop-pulse 1s ease-in-out infinite alternate;
}

.loop-size {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.loop-size-btn {
    width: 32px;
    height: 28px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.loop-size-btn:hover {
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

.loop-size-btn:active {
    transform: scale(0.95);
}

.loop-length {
    min-width: 50px;
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-warning);
    padding: 4px 8px;
    background: rgba(255, 170, 0, 0.1);
    border-radius: var(--radius-sm);
}

/* Pad Mode Selector */
.pad-mode-selector {
    display: flex;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-xs) 0;
}

.pad-mode {
    height: 24px;
    padding: 0 0.75rem;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.52rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pad-mode:hover {
    border-color: var(--deck-color);
    color: var(--deck-color);
}

.pad-mode.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
}

/* Beat Loop pad styling */
.cue-pad.beatloop-mode {
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

.cue-pad.beatloop-mode.active {
    background: var(--accent-warning);
    color: var(--bg-dark);
    border-color: var(--accent-warning);
    box-shadow: 0 0 10px rgba(255, 170, 0, 0.5);
}

/* Playing state glow animation */
.deck.playing .play-btn {
    animation: glow 2s ease-in-out infinite;
}

.deck[data-deck="A"].playing .play-btn {
    animation-name: glow-cyan;
}

.deck[data-deck="B"].playing .play-btn {
    animation-name: glow-magenta;
}

@keyframes glow-cyan {
    0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
    50% { box-shadow: 0 0 40px var(--accent-glow); }
}

@keyframes glow-magenta {
    0%, 100% { box-shadow: 0 0 20px var(--accent-glow-secondary); }
    50% { box-shadow: 0 0 40px var(--accent-glow-secondary); }
}

/* Transform Controls */
.controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
}

.control-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.control-label {
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--text-secondary);
}

/* Fader */
.fader-container {
    position: relative;
    width: 100%;
    height: 100px;
    display: flex;
    justify-content: center;
}

.fader {
    -webkit-appearance: none;
    appearance: none;
    width: 100px;
    height: 8px;
    background: transparent;
    transform: rotate(-90deg);
    transform-origin: center;
    position: absolute;
    top: 50%;
    margin-top: -4px;
}

.fader::-webkit-slider-track {
    width: 100%;
    height: 8px;
    background: var(--bg-elevated);
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
}

.fader::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 36px;
    background: linear-gradient(180deg, var(--slider-thumb-highlight), var(--slider-thumb-base));
    border: 2px solid var(--deck-color);
    border-radius: 4px;
    cursor: grab;
    margin-top: -14px;
    box-shadow: 0 0 8px var(--deck-glow);
}

.fader::-webkit-slider-thumb:active {
    cursor: grabbing;
    box-shadow: 0 0 15px var(--deck-glow);
}

.fader::-moz-range-track {
    width: 100%;
    height: 8px;
    background: var(--bg-elevated);
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
}

.fader::-moz-range-thumb {
    width: 20px;
    height: 36px;
    background: linear-gradient(180deg, var(--slider-thumb-highlight), var(--slider-thumb-base));
    border: 2px solid var(--deck-color);
    border-radius: 4px;
    cursor: grab;
    box-shadow: 0 0 8px var(--deck-glow);
}

.control-value {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--deck-color);
    text-shadow: 0 0 15px var(--deck-glow);
    display: flex;
    align-items: baseline;
    gap: 0.2rem;
}

.control-unit {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.reset-btn {
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 0.3rem 0.6rem;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.reset-btn:hover {
    border-color: var(--deck-color);
    color: var(--deck-color);
}

/* Disabled Control State */
.control-group.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.control-group.disabled .fader {
    cursor: not-allowed;
}

.control-group.disabled .control-label::after {
    content: ' (LOCKED)';
    font-size: 0.5rem;
    color: var(--accent-secondary);
}

/* EQ Controls */
.eq-group {
    grid-column: 1 / -1;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
}

.eq-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    width: 100%;
}

.eq-band {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    flex: 1;
    max-width: 120px;
}

.eq-label {
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-muted);
}

.eq-slider-container {
    position: relative;
    width: 100%;
    height: 24px;
    display: flex;
    align-items: center;
}

.eq-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-elevated);
    border-radius: 3px;
    border: 1px solid var(--border-subtle);
    outline: none;
    cursor: pointer;
}

.eq-slider::-webkit-slider-track {
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, 
        var(--accent-secondary) 0%, 
        var(--bg-elevated) 25%,
        var(--bg-elevated) 75%,
        var(--accent-warning) 100%
    );
    border-radius: 3px;
    border: 1px solid var(--border-subtle);
}

.eq-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 20px;
    background: linear-gradient(180deg, var(--slider-thumb-hover), var(--slider-thumb-base));
    border: 2px solid var(--deck-color);
    border-radius: 3px;
    cursor: grab;
    box-shadow: 0 0 6px var(--deck-glow);
    transition: box-shadow var(--transition-fast);
}

.eq-slider::-webkit-slider-thumb:hover {
    box-shadow: 0 0 12px var(--deck-glow);
}

.eq-slider::-webkit-slider-thumb:active {
    cursor: grabbing;
    box-shadow: 0 0 18px var(--deck-glow);
}

.eq-slider::-moz-range-track {
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg,
        var(--accent-secondary) 0%,
        var(--bg-elevated) 25%,
        var(--bg-elevated) 75%,
        var(--accent-warning) 100%
    );
    border-radius: 3px;
    border: 1px solid var(--border-subtle);
}

.eq-slider::-moz-range-thumb {
    width: 14px;
    height: 20px;
    background: linear-gradient(180deg, var(--slider-thumb-hover), var(--slider-thumb-base));
    border: 2px solid var(--deck-color);
    border-radius: 3px;
    cursor: grab;
    box-shadow: 0 0 6px var(--deck-glow);
}

.eq-center-mark {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 14px;
    background: var(--text-muted);
    opacity: 0.5;
    pointer-events: none;
    border-radius: 1px;
}

.eq-value {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--deck-color);
    min-width: 35px;
    text-align: center;
}

.eq-hint {
    margin-top: 0.4rem;
    font-size: 0.6rem;
}

/* Mode Toggle */
.toggle-group {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
}

.toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 140px;
    justify-content: center;
}

.toggle-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.toggle-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-secondary);
}

.toggle-btn.active {
    background: rgba(0, 240, 255, 0.1);
    border-color: var(--deck-color);
    color: var(--deck-color);
    box-shadow: 0 0 15px var(--deck-glow);
}

.deck[data-deck="B"] .toggle-btn.active {
    background: rgba(255, 0, 170, 0.1);
}

.toggle-btn.active svg {
    stroke: var(--deck-color);
}

.control-hint {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-align: center;
    width: 100%;
    max-width: 280px;
}

/* ==================== MIXER PANEL (Sprint 3.75 Redesign) ==================== */

.mixer-panel {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    background: var(--bg-surface);
    border-radius: 0;
    border: none;
    min-width: 160px;
}

/* Top Row: Master Knobs - must align with VU meters below */
.mixer-knobs-row {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 8px;
    /* Ensure same width as mixer-channels for proper centering */
    width: 100%;
    box-sizing: border-box;
}

.mixer-knobs-row .knob-container {
    width: 48px;
    height: 48px;
}

/* Master knob indicator color */
.mixer-knobs-row .rotary-knob .knob-indicator {
    stroke: var(--accent-warning);
}

.mixer-knobs-row .rotary-knob:hover .knob-body {
    stroke: var(--accent-warning);
}

.mixer-knobs-row .rotary-knob:hover .knob-indicator {
    filter: drop-shadow(0 0 4px var(--accent-warning));
}

/* Middle Section: Channels + VU Meters */
.mixer-channels {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
    gap: 0;
    padding: 0;
    flex: 1;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

/* VU Meters Column (between channel strips) */
.vu-meters-column {
    display: flex;
    align-items: stretch;
    padding: 0;
    margin: 0;
    justify-self: center;
}

.vu-meter {
    width: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0;
    overflow: hidden;
    position: relative;
    border-right: 1px solid var(--border-subtle);
}

.vu-meter:first-child {
    border-left: 1px solid var(--border-subtle);
}

.vu-meter:last-child {
    border-right: 1px solid var(--border-subtle);
}

.vu-meter .vu-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-origin: bottom center;
    transform: scaleY(0);
    border-radius: 0;
}

/* Peak indicator (red line with hold/decay) */
.vu-meter .vu-peak {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-danger);
    bottom: 0;
    box-shadow: 0 0 4px var(--accent-danger);
    z-index: 1;
    border-radius: 0;
}

/* Color-coded VU bars */
.vu-meter[data-channel="a"] .vu-bar {
    background: linear-gradient(to top,
        var(--accent-primary) 0%,
        var(--accent-primary) 70%,
        var(--accent-caution) 85%,
        var(--accent-danger) 100%
    );
}

.vu-meter[data-channel="master"] .vu-bar {
    background: linear-gradient(to top,
        var(--accent-warning) 0%,
        var(--accent-warning) 70%,
        var(--accent-caution) 85%,
        var(--accent-danger) 100%
    );
}

.vu-meter[data-channel="b"] .vu-bar {
    background: linear-gradient(to top,
        var(--accent-secondary) 0%,
        var(--accent-secondary) 70%,
        var(--accent-caution) 85%,
        var(--accent-danger) 100%
    );
}

/* Clipping state - flash the whole meter red */
.vu-meter.clipping {
    background: var(--accent-danger-glow);
}

.channel-strip {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    justify-self: center;
}

.channel-label {
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.channel-strip[data-channel="a"] .channel-label {
    color: var(--accent-primary);
}

.channel-strip[data-channel="b"] .channel-label {
    color: var(--accent-secondary);
}

.channel-knobs {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: center;
}

.knob-container {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mixer knob indicator colors (not inside a deck, so no --deck-color) */
.channel-strip[data-channel="a"] .rotary-knob .knob-indicator {
    stroke: var(--accent-primary);
}

.channel-strip[data-channel="b"] .rotary-knob .knob-indicator {
    stroke: var(--accent-secondary);
}

/* Hover effects for mixer knobs */
.channel-strip[data-channel="a"] .rotary-knob:hover .knob-body {
    stroke: var(--accent-primary);
}

.channel-strip[data-channel="a"] .rotary-knob:hover .knob-indicator {
    filter: drop-shadow(0 0 4px var(--accent-primary));
}

.channel-strip[data-channel="b"] .rotary-knob:hover .knob-body {
    stroke: var(--accent-secondary);
}

.channel-strip[data-channel="b"] .rotary-knob:hover .knob-indicator {
    filter: drop-shadow(0 0 4px var(--accent-secondary));
}

/* Visual separator between trim and EQ */
.channel-knobs .knob-container:nth-child(2) {
    margin-top: 4px;
    padding-top: 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Channel Faders */
.channel-fader-wrapper {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 4px;
}

.channel-fader {
    -webkit-appearance: none;
    appearance: none;
    width: 8px;
    height: 100px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    cursor: pointer;
    writing-mode: vertical-lr;
    direction: rtl;
}

.channel-fader::-webkit-slider-track {
    width: 6px;
    height: 100%;
    background: transparent;
    border-radius: 3px;
}

.channel-fader::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 16px;
    background: linear-gradient(180deg, var(--slider-thumb-hover), var(--slider-thumb-base));
    border: 1px solid var(--text-muted);
    border-radius: 3px;
    cursor: grab;
}

.channel-fader::-webkit-slider-thumb:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 6px var(--accent-glow);
}

.channel-fader::-webkit-slider-thumb:active {
    cursor: grabbing;
    background: linear-gradient(180deg, var(--slider-thumb-active), var(--slider-thumb-highlight));
}

.channel-fader::-moz-range-track {
    width: 6px;
    height: 100%;
    background: transparent;
    border-radius: 3px;
}

.channel-fader::-moz-range-thumb {
    width: 24px;
    height: 16px;
    background: linear-gradient(180deg, var(--slider-thumb-hover), var(--slider-thumb-base));
    border: 1px solid var(--text-muted);
    border-radius: 3px;
    cursor: grab;
}

/* Crossfader Section */
.crossfader-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 8px 8px 8px;
}

.crossfader-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
}

.crossfader-side {
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.crossfader-slider {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 8px;
    background: var(--bg-elevated);
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
    cursor: pointer;
}

.crossfader-slider::-webkit-slider-track {
    width: 100%;
    height: 100%;
    background: transparent;
    border-radius: 3px;
}

.crossfader-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 24px;
    background: linear-gradient(180deg, var(--slider-thumb-hover), var(--slider-thumb-base));
    border: 1px solid var(--text-muted);
    border-radius: 3px;
    cursor: grab;
}

.crossfader-slider::-webkit-slider-thumb:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 6px var(--accent-glow);
}

.crossfader-slider::-webkit-slider-thumb:active {
    cursor: grabbing;
}

.crossfader-slider::-moz-range-track {
    width: 100%;
    height: 100%;
    background: transparent;
    border-radius: 3px;
}

.crossfader-slider::-moz-range-thumb {
    width: 16px;
    height: 24px;
    background: linear-gradient(180deg, var(--slider-thumb-hover), var(--slider-thumb-base));
    border: 1px solid var(--text-muted);
    border-radius: 3px;
    cursor: grab;
}

/* Curve Toggle Buttons (ARIA radiogroup) */
.curve-toggles {
    display: inline-flex;
    gap: 2px;
    background: rgba(0, 0, 0, 0.25);
    border-radius: var(--radius-lg);
    padding: 3px;
}

.curve-toggle {
    padding: 5px 12px;
    font-family: var(--font-display);
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
}

.curve-toggle:hover {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.06);
}

.curve-toggle:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.curve-toggle.active {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
}

/* Mixer Help Button */
.mixer-help-btn {
    margin-top: 8px;
    padding: 6px 16px;
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mixer-help-btn:hover {
    color: var(--text-secondary);
    border-color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
}

.mixer-help-btn:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* ==================== LIBRARY PANEL ==================== */

/* Library Wrapper - Edge-to-edge layout, fills available space */
.library-wrapper {
  display: grid;
  grid-template-rows: 1fr;
  /* Break out of .app container to span full viewport width */
  width: 100vw;
  margin-left: calc(-1 * ((100vw - min(100vw, 1600px)) / 2));
  margin-right: calc(-1 * ((100vw - min(100vw, 1600px)) / 2));
  /* No border-top: waveform container has border-bottom */
  min-height: 0;
  overflow: hidden;
}

.library-panel {
  background: var(--bg-surface);
  border: none;
  border-radius: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  min-height: 0;
}

.library-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  border-radius: 0;
}

.library-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: var(--accent-primary);
}

.library-controls {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.library-search {
  width: 200px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.library-search::placeholder {
  color: var(--text-muted);
}

.library-search:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.15);
}

.library-btn {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.library-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: var(--bg-hover);
}

.library-btn:active {
  transform: scale(0.97);
}

.library-toggle {
  padding: 6px 10px;
}

.toggle-icon {
  font-size: 0.6rem;
}

.library-filters {
  display: flex;
  gap: var(--space-md);
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid var(--border-subtle);
}

.library-select,
.library-input {
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  transition: border-color var(--transition-fast);
}

.library-select:focus,
.library-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.library-select {
  min-width: 130px;
}

.bpm-filter {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.bpm-filter .library-input {
  width: 72px;
}

.bpm-separator {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Library Table */
.library-table-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.library-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.72rem;
}

.library-table th {
  position: sticky;
  top: 0;
  background: var(--bg-elevated);
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  user-select: none;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.library-table th.sortable:hover {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

.library-table th.sort-active {
  color: var(--accent-primary);
}

.library-table th.sort-active::after {
  content: ' ▲';
  font-size: 0.5rem;
  opacity: 0.75;
  margin-left: 2px;
}

.library-table th.sort-active.sort-desc::after {
  content: ' ▼';
}

.library-table td {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.library-table tr:hover td {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.library-table tr {
  cursor: pointer;
  transition: background var(--transition-fast);
}

.library-table tr.selected td {
  background: rgba(0, 240, 255, 0.12);
  color: var(--text-primary);
}

.library-table tr.selected:hover td {
  background: rgba(0, 240, 255, 0.16);
}

.library-table tr.analyzing td {
  opacity: 0.55;
}

.track-title {
  color: var(--text-primary);
  font-weight: 500;
}

.analyzing-badge {
  margin-left: 8px;
  font-size: 0.6rem;
  color: var(--accent-warning);
  animation: analyzing-pulse 1s ease-in-out infinite;
}

@keyframes analyzing-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* Column widths */
.col-title { width: 35%; max-width: 300px; }
.col-artist { width: 25%; max-width: 200px; }
.col-bpm { width: 60px; text-align: center; }
.col-key { width: 50px; text-align: center; }
.col-duration { width: 60px; text-align: center; }
.col-added { width: 80px; }

/* Status bar */
.library-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  font-size: 0.65rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  border-radius: 0;
}

/* Drag and drop */
.library-panel.drag-over {
  border: 2px dashed var(--accent-primary);
  background: rgba(0, 240, 255, 0.02);
}

.library-panel.drag-over .library-table-container {
  pointer-events: none;
}

/* Empty state */
.library-table tbody:empty::after {
  content: 'No tracks in library. Drag audio files here or click + FILE to import.';
  display: block;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Library Toggle Button - collapse/expand control */
.library-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: 0.35rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition-fast);
}

/* When library is collapsed, make toggle button more prominent */
.library-wrapper.collapsed + .library-toggle-btn {
  margin-top: 0.5rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}

.library-toggle-btn:hover {
  background: var(--bg-hover);
  color: var(--accent-primary);
}

.library-toggle-btn .toggle-arrow {
  font-size: 0.6rem;
  transition: transform 0.2s ease-out;
}

.library-toggle-btn .toggle-hint {
  font-size: 0.5rem;
  opacity: 0.5;
}

/* Hide toggle button in focus mode */
body.focus-mode .library-toggle-btn {
  display: none !important;
}

/* ==================== SHORTCUTS MODAL ==================== */

.shortcuts-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

.shortcuts-modal.visible {
  opacity: 1;
  visibility: visible;
}

.shortcuts-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  max-width: 600px;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.shortcuts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.35rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.shortcuts-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
}

.shortcuts-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  transition: color var(--transition-fast);
  border-radius: var(--radius-sm);
}

.shortcuts-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.shortcuts-body {
  padding: 1rem 1.25rem;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.shortcuts-section h3 {
  margin: 0 0 0.5rem 0;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.shortcut-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.shortcut-row kbd {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--accent-primary);
  min-width: 1.6rem;
  text-align: center;
}

.shortcut-row.shortcut-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 0.6rem 0;
}

.shortcut-row.shortcut-hint-small {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: -0.2rem;
}

/* Spatial layout for shortcuts modal */
.shortcuts-content-wide {
  max-width: 800px;
}

.shortcuts-body-spatial {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 1.5rem 2rem;
}

.shortcuts-deck-a {
  grid-column: 1;
  grid-row: 1;
}

.shortcuts-deck-b {
  grid-column: 2;
  grid-row: 1;
}

.shortcuts-global {
  grid-column: 1;
  grid-row: 2;
}

.shortcuts-interface {
  grid-column: 2;
  grid-row: 2;
}

.deck-indicator {
  display: inline-block;
  width: 1.2em;
  height: 1.2em;
  line-height: 1.2em;
  text-align: center;
  border-radius: 3px;
  font-size: 0.7em;
  font-weight: 700;
  margin-right: 0.3em;
}

.deck-indicator.deck-a {
  background: var(--accent-primary);
  color: var(--bg-dark);
}

.deck-indicator.deck-b {
  background: var(--accent-secondary);
  color: var(--bg-dark);
}

.shortcuts-deck-a h3 {
  color: var(--accent-primary);
}

.shortcuts-deck-b h3 {
  color: var(--accent-secondary);
}

.shortcut-alt {
  color: var(--text-muted);
  font-size: 0.6rem;
  margin-left: auto;
}

.shortcuts-footer {
  padding: 0.75rem 1.25rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.shortcut-hint {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.shortcuts-credit {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.6rem;
  color: var(--text-muted);
}

.shortcuts-credit a {
  color: var(--accent-primary);
  text-decoration: none;
}

.shortcuts-credit a:hover {
  text-decoration: underline;
}

/* Responsive shortcuts modal */
@media (max-width: 700px) {
  .shortcuts-content-wide {
    max-width: 95vw;
  }

  .shortcuts-body-spatial {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
  }

  .shortcuts-deck-a,
  .shortcuts-deck-b,
  .shortcuts-global,
  .shortcuts-interface {
    grid-column: 1;
  }

  .shortcuts-deck-a { grid-row: 1; }
  .shortcuts-deck-b { grid-row: 2; }
  .shortcuts-global { grid-row: 3; }
  .shortcuts-interface { grid-row: 4; }
}

/* Responsive - Stack on smaller screens */
/* TEMPORARILY DISABLED for debugging
@media (max-width: 1100px) {
    .decks-container {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
    }

    .mixer-panel {
        grid-column: 1 / -1;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
        min-width: auto;
    }

    .mixer-section {
        flex-direction: column;
        border-bottom: none;
        border-right: 1px solid var(--border-subtle);
        padding: 0.5rem 1rem;
    }

    .mixer-section:last-child {
        border-right: none;
    }

    .crossfader-section {
        flex: 1;
        min-width: 200px;
    }
}

@media (max-width: 900px) {
    .decks-container {
        grid-template-columns: 1fr;
    }

    .mixer-panel {
        grid-column: 1;
    }
}
*/

@media (max-width: 900px) {
    .app {
        max-width: 600px;
        padding: 1rem;
    }
    
    .deck {
        padding: 1.25rem;
    }
    
    .waveform-container {
        height: 80px;
    }
    
    .fader-container {
        height: 110px;
    }
    
    .fader {
        width: 110px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .deck {
        padding: 1rem;
        gap: var(--space-sm);
    }
    
    .controls {
        gap: var(--space-md);
    }
    
    .fader-container {
        height: 90px;
    }
    
    .fader {
        width: 90px;
    }
    
    .eq-controls {
        gap: var(--space-sm);
    }
    
    .eq-band {
        max-width: 90px;
    }
    
    .eq-label {
        font-size: 0.5rem;
    }
    
    .eq-value {
        font-size: 0.6rem;
    }
    
    .transport-btn {
        width: 36px;
        height: 36px;
    }
    
    .play-btn {
        width: 48px;
        height: 48px;
    }
}

/* ==================== Effects Section ==================== */

.effects-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
    margin-top: 0.5rem;
}

.effect-label {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.35rem;
    display: block;
}

/* Filter Effect */
.effect-filter {
    flex: 1;
    min-width: 0;
}

.filter-control {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.filter-slider {
    flex: 1;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right,
        var(--deck-color) 0%,
        var(--track-mid) 48%,
        var(--track-mid) 52%,
        var(--deck-color) 100%);
    border-radius: 4px;
    cursor: pointer;
}

.filter-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 22px;
    background: var(--deck-color);
    border-radius: 3px;
    cursor: grab;
    box-shadow: 0 0 6px var(--deck-color);
}

.filter-slider::-webkit-slider-thumb:active {
    cursor: grabbing;
}

.filter-slider::-moz-range-thumb {
    width: 14px;
    height: 22px;
    background: var(--deck-color);
    border-radius: 3px;
    border: none;
    cursor: grab;
}

.filter-mode {
    font-size: 0.6rem;
    color: var(--text-muted);
    min-width: 18px;
    text-align: center;
    font-weight: 600;
    transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.filter-mode.active {
    color: var(--deck-color);
    text-shadow: 0 0 8px var(--deck-color);
}

.resonance-control {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: 0.4rem;
}

.resonance-control label {
    font-size: 0.55rem;
    color: var(--text-muted);
    min-width: 24px;
}

.resonance-slider {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right, var(--track-mid), var(--deck-color));
    border-radius: 2px;
    cursor: pointer;
}

.resonance-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 14px;
    background: var(--text-muted);
    border-radius: 2px;
    cursor: grab;
}

.resonance-slider::-webkit-slider-thumb:hover {
    background: var(--deck-color);
}

/* Echo Effect */
.effect-echo {
    flex: 1;
    min-width: 0;
}

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

.echo-toggle {
    padding: var(--btn-padding-sm);
    font-size: 0.58rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
}

.echo-toggle:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

.echo-toggle.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
    box-shadow: 0 0 8px var(--deck-glow);
}

.echo-beats {
    display: flex;
    gap: 3px;
    margin-bottom: var(--space-sm);
}

.echo-beats button {
    flex: 1;
    padding: 0.32rem 0.2rem;
    font-size: 0.55rem;
    font-weight: 600;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
}

.echo-beats button:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.12);
}

.echo-beats button.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
}

.echo-params {
    display: flex;
    gap: var(--space-md);
}

.echo-params .param {
    flex: 1;
}

.echo-params label {
    display: block;
    font-size: 0.52rem;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-family: var(--font-display);
    font-weight: 600;
}

.echo-params input[type="range"] {
    width: 100%;
    height: 5px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right, var(--bg-hover), var(--deck-color));
    border-radius: var(--radius-xs);
    cursor: pointer;
}

.echo-params input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 11px;
    height: 16px;
    background: var(--text-secondary);
    border-radius: var(--radius-xs);
    cursor: grab;
    transition: background var(--transition-fast);
}

.echo-params input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--deck-color);
}

/* ==================== FX Tab System ==================== */

.fx-tabs {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-xs);
}

.fx-tab {
    flex: 1;
    padding: 0.4rem 0.35rem;
    font-size: 0.55rem;
    font-weight: 600;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.fx-tab:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-secondary);
}

.fx-tab.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
    box-shadow: 0 0 8px var(--deck-glow);
}

.fx-panel {
    display: none;
}

.fx-panel.active {
    display: block;
}

.fx-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: 0.4rem;
}

.fx-toggle {
    padding: var(--btn-padding-sm);
    font-size: 0.55rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
    min-width: 44px;
    letter-spacing: 0.03em;
}

.fx-toggle:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-secondary);
}

.fx-toggle.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
    box-shadow: 0 0 8px var(--deck-glow);
}

.fx-params {
    display: flex;
    gap: var(--space-md);
}

.fx-params .param {
    flex: 1;
}

.fx-params label {
    display: block;
    font-size: 0.52rem;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-family: var(--font-display);
    font-weight: 600;
}

.fx-params input[type="range"] {
    width: 100%;
    height: 5px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right, var(--bg-hover), var(--deck-color));
    border-radius: var(--radius-xs);
    cursor: pointer;
}

.fx-params input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 11px;
    height: 16px;
    background: var(--text-secondary);
    border-radius: var(--radius-xs);
    cursor: grab;
    transition: background var(--transition-fast);
}

.fx-params input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--deck-color);
}

/* Beat/Room buttons */
.beat-buttons,
.room-buttons {
    display: flex;
    gap: 3px;
    flex: 1;
}

.beat-buttons button,
.room-buttons button {
    flex: 1;
    padding: 0.3rem 0.2rem;
    font-size: 0.52rem;
    font-weight: 600;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
}

.beat-buttons button:hover,
.room-buttons button:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--text-secondary);
}

.beat-buttons button.active,
.room-buttons button.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
}

/* Modulation select */
.mod-select {
    display: flex;
    gap: 3px;
}

.mod-type {
    padding: 0.3rem 0.5rem;
    font-size: 0.52rem;
    font-weight: 600;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
}

.mod-type:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.mod-type.active {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

/* Delay time display */
.delay-time {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--deck-color);
}

.delay-time .time-value {
    font-weight: 700;
}

.delay-time .time-unit {
    font-size: 0.5rem;
    color: var(--text-muted);
    margin-left: 2px;
}

/* Noise section */
.noise-section {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-subtle);
}

.noise-section label {
    font-size: 0.52rem;
    color: var(--text-muted);
    text-transform: uppercase;
    min-width: 36px;
    font-family: var(--font-display);
    font-weight: 600;
}

.noise-type {
    padding: 0.25rem 0.45rem;
    font-size: 0.52rem;
    font-weight: 600;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
    min-width: 48px;
}

.noise-type:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.noise-section input[type="range"] {
    flex: 1;
    height: 5px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right, var(--bg-hover), var(--deck-color));
    border-radius: var(--radius-xs);
    cursor: pointer;
}

.noise-section input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 11px;
    height: 16px;
    background: var(--text-secondary);
    border-radius: var(--radius-xs);
    cursor: grab;
}

/* Beat Repeat */
.repeat-division {
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--deck-color);
    min-width: 42px;
    text-align: center;
}

.repeat-trigger {
    margin-top: var(--space-sm);
}

.repeat-btn {
    width: 100%;
    padding: 0.65rem;
    font-size: 0.62rem;
    font-weight: 700;
    background: var(--bg-elevated);
    border: 2px solid var(--border-subtle);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.repeat-btn:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

.repeat-btn:active,
.repeat-btn.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
    box-shadow: 0 0 12px var(--deck-glow);
}

/* Responsive Effects */
@media (max-width: 900px) {
    .effects-section {
        gap: var(--space-sm);
    }

    .fx-tabs {
        flex-wrap: wrap;
    }

    .fx-tab {
        min-width: calc(33% - 0.2rem);
    }
}

/* ==================== SHORTCUT TOOLTIPS ==================== */

.shortcut-tooltip {
    position: fixed;
    z-index: 10000;
    padding: 6px 10px;
    background: rgba(20, 20, 30, 0.95);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s, transform 0.15s;
    max-width: 200px;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.shortcut-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
}

.shortcut-tooltip.below {
    transform: translateY(-4px);
}

.shortcut-tooltip.below.visible {
    transform: translateY(0);
}

.shortcut-tooltip kbd {
    display: inline-block;
    padding: 2px 6px;
    margin-left: 6px;
    background: var(--bg-dark);
    border: 1px solid var(--border-subtle);
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--accent-primary);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .shortcut-tooltip {
        transition: none;
    }
}

/* ==================== FX SLIDE-OUT PANEL ==================== */

/* Deck must have overflow visible for panel to extend outside */
.deck {
    position: relative;
    overflow: visible;
}

/* The slide-out panel */
.fx-slideout-panel {
    position: absolute;
    top: 0;
    width: 220px;
    height: 100%;
    min-height: 400px;
    background: rgba(15, 15, 22, 0.98);
    border: 1px solid var(--border-subtle);
    transition: transform 0.25s ease-out, opacity 0.25s ease-out;
    opacity: 0;
    pointer-events: none;
    z-index: 200;
    display: flex;
    flex-direction: column;
}

/* Direction: slides from left (Deck A) */
.fx-slideout-panel.from-left {
    left: 0;
    right: auto;
    transform: translateX(-100%);
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    border-right: none;
}

/* Direction: slides from right (Deck B) */
.fx-slideout-panel.from-right {
    right: 0;
    left: auto;
    transform: translateX(100%);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    border-left: none;
}

/* Open state */
.fx-slideout-panel.open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

/* Panel header */
.fx-slideout-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.fx-slideout-title {
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--deck-color);
}

.fx-slideout-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    font-size: 20px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color 0.15s;
}

.fx-slideout-close:hover {
    color: var(--text-primary);
}

/* Effects section inside slide-out panel */
.fx-slideout-panel .effects-section {
    flex: 1;
    overflow-y: auto;
    margin-top: 0;
    border-radius: 0;
    background: transparent;
}

/* Compact tabs for slide-out */
.fx-slideout-panel .fx-tabs {
    flex-wrap: wrap;
    gap: 3px;
    padding: 0 0 8px 0;
}

.fx-slideout-panel .fx-tab {
    flex: 1 1 calc(33% - 3px);
    min-width: 0;
    padding: 5px 6px;
    font-size: 0.5rem;
}

/* FX Toggle Button styling update */
.fx-panel-toggle {
    position: relative;
    width: 100%;
    padding: 8px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: 0.5rem;
}

.fx-panel-toggle:hover {
    background: var(--bg-hover);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

.fx-panel-toggle.active {
    background: var(--deck-color);
    color: var(--bg-dark);
    border-color: var(--deck-color);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .fx-slideout-panel {
        transition: opacity 0.15s;
        transform: translateX(0);
    }
}

/* ==================== BEATGRID MODAL ==================== */

.beatgrid-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}

.beatgrid-modal-backdrop.visible {
    opacity: 1;
    visibility: visible;
}

.beatgrid-modal-backdrop.closing {
    opacity: 0;
}

.beatgrid-modal {
    --modal-accent: var(--accent-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    width: 500px;
    max-width: 95%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: translateY(20px) scale(0.95);
    transition: transform 0.2s ease-out;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.beatgrid-modal-backdrop.visible .beatgrid-modal {
    transform: translateY(0) scale(1);
}

/* Modal Header */
.beatgrid-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
}

.beatgrid-modal-header h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--modal-accent);
}

.beatgrid-modal-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.beatgrid-modal-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

/* Waveform Preview Section */
.beatgrid-waveform-section {
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-subtle);
    padding: 12px;
}

.beatgrid-waveform-canvas {
    width: 100%;
    height: 100px;
    display: block;
    border-radius: var(--radius-sm);
    background: var(--bg-input);
}

.beatgrid-waveform-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 8px;
}

.beatgrid-waveform-controls .zoom-label {
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.7);
    min-width: 50px;
    text-align: center;
}

.beatgrid-btn-small {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.8);
    border-radius: 4px;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: background 0.15s, border-color 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.beatgrid-btn-small:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
}

.beatgrid-btn-small:active {
    background: rgba(255, 255, 255, 0.2);
}

/* Modal Content */
.beatgrid-modal-content {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.beatgrid-section {
    margin-bottom: 20px;
}

.beatgrid-section:last-child {
    margin-bottom: 0;
}

.beatgrid-label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.beatgrid-hint {
    display: block;
    font-size: 0.6rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* BPM Row */
.beatgrid-bpm-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}

.beatgrid-bpm-input {
    flex: 1;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--modal-accent);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
}

.beatgrid-bpm-input:focus {
    outline: none;
    border-color: var(--modal-accent);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.beatgrid-bpm-input:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.beatgrid-bpm-actions {
    display: flex;
    gap: 6px;
}

/* Buttons */
.beatgrid-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.beatgrid-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--modal-accent);
    color: var(--modal-accent);
}

.beatgrid-btn:active:not(:disabled) {
    background: var(--modal-accent);
    color: var(--bg-dark);
}

.beatgrid-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.beatgrid-btn-secondary {
    flex: 1;
    height: 32px;
    padding: 0 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.beatgrid-btn-secondary:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--modal-accent);
    color: var(--modal-accent);
}

.beatgrid-btn-secondary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.beatgrid-btn-primary {
    width: 100%;
    height: 40px;
    padding: 0 16px;
    border: 2px solid var(--modal-accent);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--modal-accent);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.beatgrid-btn-primary:hover:not(:disabled) {
    background: var(--modal-accent);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}

.beatgrid-btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Tap Tempo */
.beatgrid-tap-btn {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    border: 2px solid var(--accent-warning);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--accent-warning);
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.beatgrid-tap-btn:hover:not(:disabled) {
    background: rgba(255, 170, 0, 0.15);
    box-shadow: 0 0 20px rgba(255, 170, 0, 0.3);
}

.beatgrid-tap-btn:active:not(:disabled) {
    background: var(--accent-warning);
    color: var(--bg-dark);
}

.beatgrid-tap-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.beatgrid-tap-btn .tap-count {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    min-width: 20px;
}

/* Grid Shift */
.beatgrid-shift-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.beatgrid-shift-label {
    flex: 1;
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

/* Lock Button */
.beatgrid-lock-section {
    padding-top: 16px;
    border-top: 1px solid var(--border-subtle);
}

.beatgrid-lock-btn {
    width: 100%;
    height: 40px;
    padding: 0 16px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.beatgrid-lock-btn:hover {
    background: var(--bg-hover);
    border-color: var(--text-secondary);
}

.beatgrid-lock-btn.active {
    background: var(--accent-warning);
    border-color: var(--accent-warning);
    color: var(--bg-dark);
}

/* Modal Footer */
.beatgrid-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-subtle);
}

.beatgrid-modal-btn-secondary {
    padding: 10px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.beatgrid-modal-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.beatgrid-modal-btn-primary {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--modal-accent);
    color: var(--bg-dark);
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.beatgrid-modal-btn-primary:hover {
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

/* Prevent body scroll when modal is open */
body.modal-open {
    overflow: hidden;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .beatgrid-modal-backdrop,
    .beatgrid-modal {
        transition: none;
    }
}

/* ==================== ROTARY EQ KNOBS ==================== */

.eq-knobs-strip {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
}

.eq-knob-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.rotary-knob {
    width: 44px;
    height: 44px;
    cursor: grab;
    touch-action: none;
    user-select: none;
    outline: none;
}

.rotary-knob:focus {
    outline: 2px solid var(--deck-color);
    outline-offset: 2px;
    border-radius: 50%;
}

.rotary-knob.dragging {
    cursor: grabbing;
}

.knob-svg {
    width: 100%;
    height: 100%;
    display: block;
}

.knob-track {
    fill: none;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 2;
}

.knob-body {
    fill: var(--bg-elevated);
    stroke: var(--border-subtle);
    stroke-width: 1;
    transition: fill 0.15s;
}

.knob-indicator {
    stroke: var(--deck-color);
    stroke-width: 2.5;
    stroke-linecap: round;
    transition: stroke 0.15s;
}

.knob-label {
    fill: var(--text-muted);
    font-family: var(--font-display);
    font-size: 8px;
    font-weight: 700;
    text-anchor: middle;
    pointer-events: none;
}

/* Knob states */
.rotary-knob.centered .knob-body {
    fill: var(--bg-hover);
}

.rotary-knob.killed .knob-indicator {
    stroke: var(--accent-danger);
}

.rotary-knob.killed .knob-body {
    fill: var(--accent-danger-glow);
}

.rotary-knob.boosted .knob-indicator {
    stroke: var(--accent-warning);
}

/* Hover effect */
.rotary-knob:hover .knob-body {
    stroke: var(--deck-color);
}

.rotary-knob:hover .knob-indicator {
    filter: drop-shadow(0 0 4px var(--deck-color));
}

.rotary-knob.dragging .knob-indicator {
    filter: drop-shadow(0 0 8px var(--deck-color));
}

/* ==================== VISUAL CLEANUP ==================== */

/* Remove border-top from controls section - use spacing instead */
.controls {
    border-top: none;
    padding-top: 0.5rem;
}

/* No gap between deck zones for compact layout */
.deck {
    gap: 0;
}

/* Deck border stays consistent regardless of focus */

/* Dim secondary elements when not focused */
.deck:not(.focused) .transport {
    opacity: 0.85;
}

.deck:not(.focused) .eq-knobs-strip {
    opacity: 0.7;
}

.deck:not(.focused) .loop-controls {
    opacity: 0.7;
}

.deck:not(.focused) .pad-mode-selector {
    opacity: 0.6;
}

.deck:not(.focused) .hot-cues {
    opacity: 0.7;
}

/* Restore full opacity on hover */
.deck:not(.focused) .transport:hover,
.deck:not(.focused) .eq-knobs-strip:hover,
.deck:not(.focused) .loop-controls:hover,
.deck:not(.focused) .hot-cues:hover {
    opacity: 1;
}

/* Remove background from loop controls for cleaner look */
.loop-controls {
    background: transparent;
    padding: 0.35rem 0;
}

/* Subtle padding reduction for more compact layout */
.time-display {
    padding: 0 0.25rem;
}

/* Grid editor - remove border when visible */
.grid-editor {
    background: transparent;
    padding: 0.35rem 0;
    margin-top: 0;
}

/* Smaller track info for compact layout */
.track-info {
    padding: 0.25rem 0.4rem;
}

/* Streamlined deck label */
.deck-label {
    padding: 0.15rem;
    background: transparent;
    font-size: 0.6rem;
}

/* Compact FX toggle button */
.fx-panel-toggle {
    padding: 6px;
    margin-top: 0.35rem;
    font-size: 0.6rem;
}

/* Hide drop zone border when no file loaded - cleaner appearance */
.drop-zone:not(.has-file) {
    border-color: rgba(42, 42, 58, 0.3);
}

.drop-zone:not(.has-file):hover {
    border-color: var(--deck-color);
}

/* Smoother transitions for interactive elements */
.loop-btn,
.loop-size-btn,
.cue-pad,
.pad-mode,
.transport-btn {
    transition: all 0.12s ease-out;
}

/* Subtle separator between transport and pads using spacing only */
.hot-cues {
    margin-top: 0.25rem;
}

/* Cleaner effect tabs */
.fx-slideout-panel .fx-tabs {
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 4px;
}

/* ================================================
   SPRINT 3.5: DECK PANEL OVERHAUL - Zone-Based Layout
   ================================================ */

/* Deck Zones Structure */
.deck-zone {
    padding: 0.35rem 0.5rem;
}

.deck-zone-info {
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.25rem 0.5rem;
}

.deck-zone-transport {
    background: rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.35rem 0.5rem;
}

.deck-zone-tabs {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
}

/* Track Info Zone - Compact Single-Line Layout */
.deck-zone-info .track-info {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
    padding: 0;
    background: transparent;
}

.deck-zone-info .track-info.visible {
    opacity: 1;
}

.deck-zone-info .deck-id {
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--deck-color);
    flex-shrink: 0;
}

.deck-zone-info .track-primary {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.deck-zone-info .track-name {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.deck-zone-info .track-metadata {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.6rem;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.deck-zone-info .metadata-item {
    display: flex;
    align-items: baseline;
    gap: 0.15rem;
}

.deck-zone-info .bpm-value,
.deck-zone-info .key-value,
.deck-zone-info .pitch-value {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--deck-color);
    font-size: 0.75rem;
}

.deck-zone-info .bpm-label,
.deck-zone-info .pitch-label {
    font-size: 0.55rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Transport Zone - Horizontal Layout */
.transport-row {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex-wrap: nowrap;
}

.transport-row .transport-btn {
    flex-shrink: 0;
}

.transport-row .cue-btn,
.transport-row .sync-btn,
.transport-row .mt-btn {
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 700;
    height: 32px;
    padding: 0 0.65rem;
    min-width: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.time-display-compact {
    display: flex;
    align-items: center;
    gap: 2px;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--text-secondary);
    margin-left: auto;
    padding: 0 var(--space-sm);
}

.time-display-compact .time-current {
    color: var(--text-primary);
    min-width: 38px;
    text-align: right;
}

.time-display-compact .time-separator {
    color: var(--text-muted);
}

.time-display-compact .time-total {
    color: var(--text-muted);
    min-width: 38px;
}

/* ================================================
   DECK TABBED PANEL
   ================================================ */

.deck-tabs-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.deck-tab-bar {
    display: flex;
    gap: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0;
    flex-shrink: 0;
}

.deck-tab {
    flex: 1;
    padding: 0.55rem 0.5rem;
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.deck-tab:hover {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.025);
}

.deck-tab:focus-visible {
    outline: 2px solid var(--deck-color);
    outline-offset: -2px;
}

.deck-tab.active {
    color: var(--deck-color);
    border-bottom-color: var(--deck-color);
    background: rgba(var(--deck-color-rgb, 0, 240, 255), 0.06);
}

.deck-tab-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-sm);
}

.deck-tab-content:not(.active) {
    display: none;
}

/* ================================================
   TAB CONTENT: HOT CUE
   ================================================ */

.tab-content-hotcue {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: 0;
}

.tab-content-hotcue .hot-cues {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xs);
    width: 100%;
}

.tab-content-hotcue .cue-pad {
    width: 100%;
    height: 34px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-hotcue .cue-pad:hover {
    background: var(--bg-hover);
    border-color: var(--text-secondary);
}

.tab-content-hotcue .cue-pad:active {
    transform: scale(0.95);
}

.tab-content-hotcue .cue-pad.set {
    background: var(--cue-color, var(--deck-color));
    border-color: var(--cue-color, var(--deck-color));
    color: var(--bg-dark);
    box-shadow: 0 0 8px var(--cue-color, var(--deck-color));
}

.tab-content-hotcue .cue-pad.set:active {
    filter: brightness(1.15);
}

.tab-content-hotcue .cue-pad.beatloop-mode {
    background: var(--bg-surface);
    color: var(--text-secondary);
    font-size: 0.62rem;
}

.tab-content-hotcue .cue-pad.beatloop-mode.active {
    background: rgba(255, 170, 0, 0.25);
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

/* ================================================
   TAB CONTENT: LOOP
   ================================================ */

.tab-content-loop {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: 0;
}

.tab-content-loop .loop-manual {
    display: flex;
    gap: var(--space-xs);
}

.tab-content-loop .loop-btn {
    flex: 1;
    height: 32px;
    padding: 0;
    font-family: var(--font-display);
    font-size: 0.62rem;
    font-weight: 700;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-loop .loop-btn:hover {
    background: var(--bg-hover);
    border-color: var(--text-secondary);
}

.tab-content-loop .loop-btn:active {
    transform: scale(0.96);
}

.tab-content-loop .loop-btn.active {
    background: rgba(255, 170, 0, 0.2);
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

.tab-content-loop .loop-exit.active {
    animation: loop-pulse 0.6s infinite alternate;
}

@keyframes loop-pulse {
    from { box-shadow: 0 0 4px rgba(255, 170, 0, 0.5); }
    to { box-shadow: 0 0 12px rgba(255, 170, 0, 0.8); }
}

.tab-content-loop .loop-auto {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xs);
}

.tab-content-loop .loop-auto-btn {
    height: 26px;
    padding: 0;
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 700;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-loop .loop-auto-btn:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.tab-content-loop .loop-auto-btn:active {
    transform: scale(0.95);
}

.tab-content-loop .loop-auto-btn.active {
    background: rgba(255, 170, 0, 0.15);
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

.tab-content-loop .loop-adjust {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.tab-content-loop .loop-adj-btn {
    min-width: 32px;
    height: 28px;
    padding: 0;
    font-family: var(--font-display);
    font-size: 0.6rem;
    font-weight: 700;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-loop .loop-adj-btn:hover {
    background: var(--bg-hover);
    border-color: var(--text-secondary);
}

.tab-content-loop .loop-adj-btn:active {
    transform: scale(0.95);
}

.tab-content-loop .loop-length {
    flex: 1;
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-warning);
}

/* ================================================
   TAB CONTENT: FX
   ================================================ */

.tab-content-fx {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: 0;
}

.tab-content-fx .fx-tabs-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xs);
}

.tab-content-fx .fx-tab {
    height: 26px;
    padding: 0 0.35rem;
    font-family: var(--font-display);
    font-size: 0.52rem;
    font-weight: 700;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-fx .fx-tab:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.tab-content-fx .fx-tab.active {
    background: rgba(var(--deck-color-rgb, 0, 240, 255), 0.15);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

.tab-content-fx .fx-panels {
    flex: 1;
}

.tab-content-fx .fx-panel {
    display: none;
}

.tab-content-fx .fx-panel.active {
    display: block;
}

.tab-content-fx .fx-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.tab-content-fx .fx-toggle {
    height: 26px;
    min-width: 44px;
    padding: 0 0.5rem;
    font-family: var(--font-display);
    font-size: 0.55rem;
    font-weight: 700;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-fx .fx-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.tab-content-fx .fx-toggle.active {
    background: rgba(var(--deck-color-rgb, 0, 240, 255), 0.2);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

.tab-content-fx .fx-params {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.tab-content-fx .param {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tab-content-fx .param label {
    font-family: var(--font-display);
    font-size: 0.52rem;
    font-weight: 700;
    color: var(--text-muted);
    width: 38px;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.tab-content-fx .param input[type="range"] {
    flex: 1;
    height: 5px;
    background: var(--bg-surface);
    border-radius: var(--radius-xs);
    cursor: pointer;
    accent-color: var(--deck-color);
}

.tab-content-fx .beat-buttons,
.tab-content-fx .room-buttons {
    display: flex;
    gap: 3px;
    flex: 1;
}

.tab-content-fx .beat-buttons button,
.tab-content-fx .room-buttons button {
    flex: 1;
    height: 24px;
    padding: 0;
    font-family: var(--font-display);
    font-size: 0.52rem;
    font-weight: 700;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xs);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-fx .beat-buttons button:hover,
.tab-content-fx .room-buttons button:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.tab-content-fx .beat-buttons button.active,
.tab-content-fx .room-buttons button.active {
    background: rgba(var(--deck-color-rgb, 0, 240, 255), 0.15);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

.tab-content-fx .filter-control {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tab-content-fx .filter-mode {
    font-family: var(--font-display);
    font-size: 0.58rem;
    font-weight: 700;
    color: var(--text-muted);
    min-width: 20px;
    text-align: center;
    transition: color var(--transition-fast);
}

.tab-content-fx .filter-mode.active {
    color: var(--deck-color);
    text-shadow: 0 0 8px var(--deck-glow);
}

.tab-content-fx .filter-slider {
    flex: 1;
    height: 6px;
}

.tab-content-fx .resonance-control {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.tab-content-fx .resonance-control label {
    font-family: var(--font-display);
    font-size: 0.52rem;
    font-weight: 700;
    color: var(--text-muted);
    min-width: 28px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.tab-content-fx .repeat-trigger {
    margin-top: var(--space-sm);
}

.tab-content-fx .repeat-btn {
    width: 100%;
    height: 36px;
    padding: 0;
    font-family: var(--font-display);
    font-size: 0.58rem;
    font-weight: 700;
    background: var(--bg-elevated);
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.tab-content-fx .repeat-btn:hover {
    background: var(--bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

.tab-content-fx .repeat-btn:active,
.tab-content-fx .repeat-btn.active {
    background: rgba(var(--deck-color-rgb, 0, 240, 255), 0.25);
    border-color: var(--deck-color);
    color: var(--deck-color);
    transform: scale(0.98);
}

.tab-content-fx .mod-select {
    display: flex;
    gap: 3px;
}

.tab-content-fx .mod-type {
    height: 24px;
    padding: 0 0.5rem;
    font-family: var(--font-display);
    font-size: 0.52rem;
    font-weight: 700;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xs);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-content-fx .mod-type:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.tab-content-fx .mod-type.active {
    background: rgba(var(--deck-color-rgb, 0, 240, 255), 0.15);
    border-color: var(--deck-color);
    color: var(--deck-color);
}

/* ==================== KEYBOARD VISUAL FEEDBACK ==================== */

/* Element highlight animation */
.keyboard-highlight {
    position: relative;
    z-index: 1;
}

.keyboard-highlight::after {
    content: '';
    position: absolute;
    inset: -4px;
    border: 2px solid var(--highlight-color, var(--accent-primary));
    border-radius: inherit;
    pointer-events: none;
    animation: keyboard-highlight-pulse 0.4s ease-out forwards;
}

@keyframes keyboard-highlight-pulse {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(1.15);
    }
}

/* Glow variant for rotary knobs */
.rotary-knob.keyboard-highlight::after {
    inset: -6px;
    border-radius: 50%;
}

/* Crossfader highlight */
.crossfader-slider.keyboard-highlight,
input[type="range"].keyboard-highlight {
    outline: 2px solid var(--highlight-color, var(--accent-warning));
    outline-offset: 2px;
}

.crossfader-slider.keyboard-highlight::after,
input[type="range"].keyboard-highlight::after {
    display: none;
}

/* Momentum animation for crossfader */
.crossfader-slider.keyboard-active {
    outline: 2px solid var(--accent-warning);
    outline-offset: 2px;
}

@keyframes momentum-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 170, 0, 0.4); }
    50% { box-shadow: 0 0 8px 2px rgba(255, 170, 0, 0.6); }
}

.crossfader-slider.keyboard-active.has-momentum {
    animation: momentum-pulse 0.3s ease-in-out infinite;
}

/* Value toast popup */
.keyboard-value-toast {
    position: fixed;
    z-index: 10001;
    padding: 6px 12px;
    background: rgba(10, 10, 15, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--text-primary);
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.keyboard-value-toast.visible {
    opacity: 1;
    transform: translateY(0);
}

.keyboard-value-toast .toast-label {
    color: var(--text-muted);
    margin-right: var(--space-sm);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.keyboard-value-toast .toast-value {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Toast state colors */
.keyboard-value-toast.killed .toast-value {
    color: var(--accent-danger);
}

.keyboard-value-toast.boosted .toast-value {
    color: var(--accent-success);
}

.keyboard-value-toast.centered .toast-value {
    color: var(--accent-warning);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .keyboard-highlight::after {
        animation: none;
        opacity: 1;
    }

    .keyboard-value-toast {
        transition: opacity 0.05s;
    }

    .crossfader-slider.keyboard-active.has-momentum {
        animation: none;
    }
}