/* ==========================================================================
   Niffty DJ - Full-Scale Ergonomic DJ Mixer & 3D VU Towers
   ========================================================================== */

.dj-mixer-panel {
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-primary) 100%);
    padding: 4px 6px;
    gap: 3px;
    position: relative;
    border-left: 1px solid var(--border-medium);
    border-right: 1px solid var(--border-medium);
    box-shadow: inset 0 0 25px rgba(0, 0, 0, 0.7);
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--border-medium) transparent;
    box-sizing: border-box;
}

.dj-mixer-panel::-webkit-scrollbar {
    width: 3px;
}

.dj-mixer-panel::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 2px;
}

/* Master Top Strip: Gain, Master Vol, Booth, Cue Vol */
.mixer-master-strip {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-deep-void);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.master-knob-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
}

.knob-label {
    font-size: 7px;
    font-weight: 800;
    letter-spacing: 0.6px;
    color: var(--text-muted);
}

.master-cue-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding-left: 2px;
}

.split-cue-btn {
    height: 16px;
    padding: 0 4.5px;
    font-size: 7.5px;
    font-weight: 800;
    letter-spacing: 0.5px;
    border-radius: 3px;
    background: var(--bg-surface-elevated, #131b29);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.12));
    color: var(--text-muted, #64748b);
    cursor: pointer;
    line-height: 1;
    transition: all 0.15s ease;
}

.split-cue-btn:hover {
    color: #fff;
    border-color: var(--neon-cyan, #00f2fe);
}

.split-cue-btn.active {
    background: var(--neon-cyan, #00f2fe);
    color: #060910;
    border-color: var(--neon-cyan, #00f2fe);
    box-shadow: 0 0 8px var(--neon-cyan, #00f2fe);
    font-weight: 900;
}

.master-limiter-wrap {
    display: flex;
    align-items: center;
    gap: 2.5px;
}

.master-limiter-led {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #334155;
    border: 1px solid rgba(0, 0, 0, 0.6);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.8);
    transition: all 0.08s ease;
}

.master-limiter-led.active {
    background: #ff0044;
    box-shadow: 0 0 6px #ff0044, 0 0 10px #ff0044;
    border-color: #ff3366;
}

.limiter-label {
    font-size: 6.5px;
    font-weight: 800;
    color: var(--text-muted);
    letter-spacing: 0.4px;
}

/* Ergonomic Cyber Rotary Knob Component (Compact Pro DJ Fit) */
.rotary-knob {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #2a384f, #0c121d);
    border: 1.5px solid rgba(255, 255, 255, 0.18);
    position: relative;
    cursor: ns-resize;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.8), inset 0 1px 2px rgba(255, 255, 255, 0.2);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.rotary-knob:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 8px rgba(0, 242, 254, 0.4);
}

.rotary-knob.filter-knob {
    width: 26px;
    height: 26px;
    background: radial-gradient(circle at 35% 35%, #384b66, #0e1624);
    border-color: rgba(0, 242, 254, 0.4);
}

.knob-pointer {
    position: absolute;
    top: 1.5px;
    left: 50%;
    width: 2px;
    height: 7px;
    background: #fff;
    border-radius: 1px;
    transform-origin: 50% 9.5px;
    transform: rotate(0deg);
    box-shadow: 0 0 4px #fff;
}

.filter-knob .knob-pointer {
    background: var(--neon-cyan);
    box-shadow: 0 0 8px var(--neon-cyan);
    height: 8.5px;
    transform-origin: 50% 11.5px;
}

/* Filter On/Off Bypass Toggle Button (Placed directly under Filter Knob & above Headphone CUE) */
.filter-toggle-btn {
    width: 35px;
    height: 15px;
    line-height: 13px;
    font-size: 7.5px;
    font-weight: 900;
    letter-spacing: 0.6px;
    border-radius: 3px;
    cursor: pointer;
    text-align: center;
    padding: 0;
    transition: all 0.15s ease;
    outline: none;
    margin-top: 3px;
    margin-bottom: 2px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #ffffff !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    user-select: none;
}

.filter-toggle-btn:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff !important;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
}

.filter-toggle-btn.active {
    background: linear-gradient(135deg, var(--neon-cyan), #00b4d8);
    color: #ffffff !important;
    font-weight: 900;
    border: 1.2px solid #ffffff;
    box-shadow: 0 0 8px rgba(0, 242, 254, 0.6), inset 0 0 4px rgba(255, 255, 255, 0.4);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.95), 0 0 4px rgba(0, 0, 0, 0.85);
}

.mixer-channel-strip[data-deck="1"] .filter-toggle-btn.active,
.mixer-channel-strip[data-deck="3"] .filter-toggle-btn.active {
    background: linear-gradient(135deg, var(--neon-magenta), #e0218a);
    border-color: #ffffff;
    box-shadow: 0 0 8px rgba(247, 37, 133, 0.6), inset 0 0 4px rgba(255, 255, 255, 0.4);
    color: #ffffff !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.95), 0 0 4px rgba(0, 0, 0, 0.85);
}

.mixer-channel-strip[data-deck="2"] .filter-toggle-btn.active {
    background: linear-gradient(135deg, #ffaa00, #ff8800);
    border-color: #ffffff;
    box-shadow: 0 0 8px rgba(255, 170, 0, 0.6), inset 0 0 4px rgba(255, 255, 255, 0.4);
    color: #ffffff !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.95), 0 0 4px rgba(0, 0, 0, 0.85);
}

/* Channel EQ Strips Grid */
.mixer-channels-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 4px;
    flex: 1;
    align-items: center;
    min-height: 0;
}

/* 4 Decks Layout */
.channel-3-strip,
.channel-4-strip,
.deck-3-vu,
.deck-4-vu {
    display: none !important;
}

body.four-decks-active .channel-3-strip,
body.four-decks-active .channel-4-strip,
body.four-decks-active .deck-3-vu,
body.four-decks-active .deck-4-vu {
    display: flex !important;
}

body.four-decks-active .mixer-channels-grid {
    grid-template-columns: 1fr 1fr auto 1fr 1fr !important;
    gap: 3px !important;
}

.mixer-channel-strip {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.channel-eq-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}

.pfl-cue-btn {
    width: 32px;
    height: 18px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: 8px;
    font-weight: 800;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-top: 4px;
    margin-bottom: 2px;
    flex-shrink: 0;
}

.pfl-cue-btn:hover {
    border-color: var(--neon-cyan);
    color: #fff;
}

.pfl-cue-btn.active {
    background: linear-gradient(135deg, var(--neon-cyan), #4facfe);
    color: #000;
    font-weight: 900;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.6);
}

.mixer-channel-strip[data-deck="1"] .pfl-cue-btn.active,
.mixer-channel-strip[data-deck="3"] .pfl-cue-btn.active {
    background: linear-gradient(135deg, var(--neon-magenta), #e0218a);
    box-shadow: 0 0 10px rgba(247, 37, 133, 0.6);
    color: #fff;
}

.mixer-channel-strip[data-deck="2"] .pfl-cue-btn.active {
    background: linear-gradient(135deg, #ffaa00, #ff8800);
    box-shadow: 0 0 10px rgba(255, 170, 0, 0.6);
    color: #000;
}

/* Dedicated Channel Upfader Housing (Zero overlap with CUE button or EQ) */
.channel-fader-wrapper {
    position: relative;
    width: 32px;
    height: 112px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 4px 0 4px 0;
    flex-shrink: 0;
}

/* High Precision Long Channel Upfader */
.channel-fader-input {
    appearance: none;
    -webkit-appearance: none;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 104px !important;
    height: 5px !important;
    background: var(--bg-deep-void);
    border-radius: 2px;
    transform: rotate(-90deg);
    margin-top: -2.5px !important;
    margin-left: -52px !important;
    outline: none;
    cursor: pointer;
    border: 1px solid var(--border-subtle);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.9);
}

.channel-fader-input::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 22px;
    height: 11px;
    background: linear-gradient(180deg, #f8fafc, #94a3b8);
    border-radius: 2px;
    border: 1px solid #475569;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.9);
    cursor: ns-resize;
}

/* Center 3D Stereo VU Towers (Proportional Balanced Length) */
.mixer-center-meters {
    display: flex;
    gap: 3px;
    justify-content: center;
    align-items: stretch;
    align-self: center;
    height: 135px !important;
    min-height: 115px;
    max-height: 150px;
    padding: 2px 2px;
    box-sizing: border-box;
}

.deck-vu-meter, .master-vu-meter {
    display: flex;
    flex-direction: column-reverse;
    gap: 1.5px;
    width: 6px;
    height: 100%;
    background: var(--bg-deep-void);
    padding: 2px 1px;
    border-radius: 2px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-sizing: border-box;
}

.master-vu-meter {
    width: 8px;
    border-color: rgba(255, 255, 255, 0.16);
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.6);
}

.vu-led {
    width: 100%;
    flex: 1 1 auto;
    min-height: 2px;
    background-color: rgba(255, 255, 255, 0.04);
    border-radius: 0.5px;
    transition: background-color 0.03s ease;
}

.vu-led.lit { background-color: var(--neon-emerald); box-shadow: 0 0 4px var(--neon-emerald); }
.deck-vu-meter .vu-led:nth-child(n+16).lit,
.master-vu-meter .vu-led:nth-child(n+16).lit { background-color: var(--neon-amber); box-shadow: 0 0 4px var(--neon-amber); }
.vu-led.clip { background-color: var(--neon-crimson) !important; box-shadow: 0 0 6px var(--neon-crimson) !important; }

/* Crossfader Section (Compact Ergonomic Pro DJ Fit) */
.crossfader-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    background: var(--bg-deep-void);
    padding: 3px 6px;
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.crossfader-header {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: center;
}

.crossfader-label {
    font-size: 7.5px;
    font-weight: 800;
    letter-spacing: 0.6px;
    color: var(--text-muted);
}

.xfader-header-actions {
    display: flex;
    align-items: center;
    gap: 3px;
}

.crossfader-curve-select {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--neon-cyan);
    font-size: 7px;
    font-weight: 800;
    padding: 1px 3px;
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.crossfader-hamster-btn {
    background: var(--bg-surface);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-muted);
    font-size: 7px;
    font-weight: 900;
    padding: 1px 4px;
    border-radius: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 2px;
    transition: all 0.15s ease;
}

.crossfader-hamster-btn:hover {
    border-color: #ff9900;
    color: #fff;
}

.crossfader-hamster-btn.active {
    background: rgba(255, 153, 0, 0.2);
    border-color: #ff9900;
    color: #ffaa00;
    box-shadow: 0 0 6px rgba(255, 153, 0, 0.5);
}

.crossfader-slider-wrap {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 4px;
}

.xfader-deck-indicator {
    font-size: 8px;
    font-weight: 900;
    color: var(--text-muted);
    font-family: var(--font-mono);
    width: 8px;
    text-align: center;
}

.xfader-deck-indicator.left {
    color: var(--neon-cyan);
}

.xfader-deck-indicator.right {
    color: var(--neon-magenta);
}

.crossfader-input {
    appearance: none;
    -webkit-appearance: none;
    flex: 1;
    height: 5px;
    background: var(--bg-deep-void);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    border: 1px solid var(--border-subtle);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.9);
}

.crossfader-input::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 22px;
    height: 12px;
    background: linear-gradient(180deg, #ffffff, #cbd5e1);
    border-radius: 2px;
    border: 1px solid #334155;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.95);
}

/* Smart Transitions Panel (Fits cleanly on any display) */
.smart-transitions-panel {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 2px;
    padding-top: 2px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.smart-trans-row {
    width: 100%;
}

.smart-trans-select {
    width: 100%;
    background: var(--bg-surface);
    border: 1px solid rgba(0, 242, 254, 0.3);
    color: var(--neon-cyan);
    font-size: 7.5px;
    font-weight: 800;
    padding: 2px 4px;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.smart-trans-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.smart-deck-cues-container {
    display: flex;
    flex-direction: column;
    gap: 1px;
    width: 100%;
}

.smart-cue-picker {
    display: flex;
    align-items: center;
    gap: 3px;
    justify-content: space-between;
    padding: 0;
}

.cue-picker-label {
    font-size: 7px;
    font-weight: 900;
    letter-spacing: 0.4px;
    min-width: 32px;
}

.cue-picker-label.deck-a {
    color: var(--neon-cyan);
}

.cue-picker-label.deck-b {
    color: var(--neon-magenta);
}

.cue-chips-row {
    display: flex;
    gap: 1.5px;
    flex: 1;
    justify-content: space-between;
}

.smart-cue-chip {
    flex: 1;
    background: var(--bg-surface-elevated);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 7px;
    font-weight: 800;
    padding: 1px 0;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.smart-cue-chip.deck-a:hover {
    border-color: var(--neon-cyan);
    color: #fff;
}

.smart-cue-chip.deck-b:hover {
    border-color: var(--neon-magenta);
    color: #fff;
}

.smart-cue-chip.deck-a.active {
    background: var(--neon-cyan);
    color: #000;
    font-weight: 900;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 6px rgba(0, 242, 254, 0.5);
}

.smart-cue-chip.deck-b.active {
    background: var(--neon-magenta);
    color: #fff;
    font-weight: 900;
    border-color: var(--neon-magenta);
    box-shadow: 0 0 6px rgba(255, 0, 128, 0.5);
}

.smart-trans-length-row {
    display: flex;
    align-items: center;
    gap: 3px;
    justify-content: space-between;
    padding: 0;
}

.length-label {
    font-size: 7px;
    font-weight: 900;
    color: var(--text-muted);
    letter-spacing: 0.4px;
    min-width: 32px;
}

.smart-length-chips {
    display: flex;
    gap: 1.5px;
    flex: 1;
    justify-content: space-between;
}

.smart-length-chip {
    flex: 1;
    background: var(--bg-surface-elevated);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 7px;
    font-weight: 800;
    padding: 1px 0;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.smart-length-chip:hover {
    border-color: #ffe600;
    color: #fff;
}

.smart-length-chip.active {
    background: #ffe600;
    color: #000;
    font-weight: 900;
    border-color: #ffe600;
    box-shadow: 0 0 6px rgba(255, 230, 0, 0.4);
}

.smart-transition-btn {
    width: 100%;
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.18), rgba(247, 37, 133, 0.18));
    border: 1px solid rgba(0, 242, 254, 0.35);
    color: #fff;
    font-size: 7.5px;
    font-weight: 900;
    letter-spacing: 0.6px;
    padding: 3px 6px;
    border-radius: 3px;
    cursor: pointer;
    margin-top: 1px;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.smart-transition-btn:hover {
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
    color: #000;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
}

.smart-transition-btn.active {
    background: linear-gradient(135deg, var(--neon-emerald), var(--neon-cyan));
    color: #000;
    box-shadow: 0 0 12px rgba(5, 255, 161, 0.6);
    animation: transitionPulse 0.8s infinite;
}

@keyframes transitionPulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.02); opacity: 0.85; }
    100% { transform: scale(1); opacity: 1; }
}