:root {
    --bg-dark: #07070a;
    --mixer-bg: #121216;
    --deck-bg: #1a1a20;
    --neon-blue: #00e5ff;
    --neon-purple: #b400ff;
    --neon-pink: #ff0055;
    --neon-green: #00ff66;
    --text-main: #ffffff;
    --text-dim: #707080;
}

* { box-sizing: border-box; margin: 0; padding: 0; user-select: none; -webkit-user-select: none; }

body, html {
    width: 100%; height: 100%;
    background-color: var(--bg-dark);
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    overflow: hidden; touch-action: none;
}

h1, h2, h3, .deck-header, .track-label, .label, .cf-label, .neon-value, .track-mute, .fx-button {
    font-family: 'Orbitron', sans-serif;
}

#game-container { position: relative; width: 100%; height: 100%; }

.bg-layer {
    position: absolute; inset: 0;
    background: url('../assets/images/background.png') center/cover no-repeat;
    opacity: 0.4; z-index: -2;
    filter: brightness(0.6) contrast(1.2);
}

#visualizer-canvas {
    position: absolute; inset: 0; z-index: -1; pointer-events: none;
}

/* Overlays */
.overlay-screen {
    position: absolute; inset: 0;
    background: rgba(5,5,10,0.95);
    display: flex; justify-content: center; align-items: center;
    z-index: 100; backdrop-filter: blur(20px);
    transition: opacity 0.5s ease;
}
.overlay-screen.hidden { opacity: 0; pointer-events: none; }

.glass-panel {
    background: rgba(20,20,30,0.8);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px; padding: 40px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.8), inset 0 0 30px rgba(255,255,255,0.05);
    text-align: center; max-width: 600px; width: 90%;
}

.intro-thumbnail {
    width: 180px; height: 180px; object-fit: cover;
    border-radius: 50%; margin: 0 auto 30px auto; display: block;
    border: 3px solid var(--neon-purple);
    box-shadow: 0 0 40px rgba(180,0,255,0.6);
    mix-blend-mode: screen;
    -webkit-mask-image: radial-gradient(circle, black 50%, transparent 100%);
    mask-image: radial-gradient(circle, black 50%, transparent 100%);
}

.neon-text {
    font-size: 3rem; color: #fff;
    text-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue), 0 0 40px var(--neon-purple);
    margin-bottom: 10px; letter-spacing: 2px;
}
.neon-text.success { text-shadow: 0 0 10px var(--neon-green), 0 0 20px var(--neon-green), 0 0 40px var(--neon-green); }

.subtitle { font-size: 1.1rem; color: var(--text-dim); margin-bottom: 30px; }

.tutorial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 15px; margin-bottom: 30px; }
.tut-item {
    background: rgba(0,0,0,0.5); padding: 15px; border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
}
.tut-icon { font-size: 2rem; margin-bottom: 10px; }
.tut-item h3 { font-size: 1rem; color: var(--neon-pink); margin-bottom: 5px; }
.tut-item p { font-size: 0.8rem; color: #aaa; }

/* Buttons */
.neon-button {
    background: rgba(0,229,255,0.1); border: 2px solid var(--neon-blue); color: var(--neon-blue);
    padding: 15px 40px; font-size: 1.2rem; font-family: 'Orbitron', sans-serif;
    border-radius: 40px; cursor: pointer;
    box-shadow: 0 0 15px inset rgba(0,229,255,0.3), 0 0 20px rgba(0,229,255,0.4);
    transition: all 0.3s ease; text-transform: uppercase; font-weight: bold;
}
.neon-button:hover, .neon-button:active {
    background: var(--neon-blue); color: #000;
    box-shadow: 0 0 30px inset var(--neon-blue), 0 0 40px var(--neon-blue);
}

/* Bulletproof Fullscreen Layout */
#hud {
    position: absolute; inset: 0; z-index: 10;
    display: flex; flex-direction: column;
    pointer-events: none;
}
#hud > * { pointer-events: auto; }

/* Top Bar */
.top-bar {
    height: 80px; flex-shrink: 0;
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(10,10,15,0.85);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 0 30px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
}
.level-info, .score-info, .objective-info { display: flex; flex-direction: column; align-items: center; }
.objective-info { flex: 1; margin: 0 20px; }
.label { font-size: 0.8rem; color: var(--text-dim); letter-spacing: 2px; margin-bottom: 4px; }
.neon-value { font-size: 1.6rem; color: var(--neon-pink); text-shadow: 0 0 10px rgba(255,0,85,0.8); font-weight: 900; }
#objective-text { font-size: 1.2rem; color: var(--neon-blue); text-shadow: 0 0 10px rgba(0,229,255,0.8); font-weight: bold; }

/* DJ Console World Best UI - Flat & Bulletproof */
#dj-console {
    flex: 1; width: 100%;
    padding: 20px;
    display: flex; justify-content: center; align-items: flex-start;
    overflow-y: auto; /* ALLOW SCROLLING */
    overflow-x: hidden;
}

/* Custom Scrollbar for the console */
#dj-console::-webkit-scrollbar { width: 8px; }
#dj-console::-webkit-scrollbar-track { background: rgba(0,0,0,0.3); border-radius: 4px; }
#dj-console::-webkit-scrollbar-thumb { background: rgba(180, 0, 255, 0.5); border-radius: 4px; }
#dj-console::-webkit-scrollbar-thumb:hover { background: var(--neon-purple); }

.mixer-board {
    width: 100%; max-width: 1400px;
    background: var(--mixer-bg);
    border-radius: 20px; padding: 25px;
    border: 2px solid #222;
    box-shadow: 0 20px 50px rgba(0,0,0,0.9), inset 0 2px 10px rgba(255,255,255,0.05);
    display: grid;
    grid-template-columns: 1fr 280px 1fr;
    gap: 25px;
}

/* Decks */
.deck {
    background: var(--deck-bg); border-radius: 12px; padding: 20px;
    border: 1px solid #25252d; box-shadow: inset 0 10px 30px rgba(0,0,0,0.8);
    display: flex; flex-direction: column;
}
.deck-left { border-top: 4px solid var(--neon-blue); box-shadow: inset 0 10px 30px rgba(0,0,0,0.8), 0 0 20px rgba(0,229,255,0.1); }
.deck-right { border-top: 4px solid var(--neon-purple); box-shadow: inset 0 10px 30px rgba(0,0,0,0.8), 0 0 20px rgba(180,0,255,0.1); }

.deck-header { text-align: center; font-size: 1.4rem; margin-bottom: 20px; color: #606070; letter-spacing: 3px; font-weight: bold; }

.track-controls { display: flex; justify-content: space-between; gap: 15px; flex: 1; }

.track-strip {
    flex: 1; background: linear-gradient(180deg, #1e1e24 0%, #101014 100%);
    border-radius: 10px; padding: 15px 10px; border: 1px solid #2a2a35;
    display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
    box-shadow: 0 5px 15px rgba(0,0,0,0.6);
}

.track-label { font-size: 1.1rem; color: var(--text-dim); margin-bottom: 20px; font-weight: bold; letter-spacing: 1px; }
.deck-left .track-label { color: var(--neon-blue); text-shadow: 0 0 8px rgba(0,229,255,0.5); }
.deck-right .track-label { color: var(--neon-purple); text-shadow: 0 0 8px rgba(180,0,255,0.5); }

/* Realistic Knobs */
.eq-knobs { display: flex; flex-direction: column; gap: 20px; margin-bottom: 20px; width: 100%; align-items: center; }
.knob-container { display: flex; flex-direction: column; align-items: center; position: relative; }
.knob-container span { font-size: 0.7rem; color: #606070; margin-top: 8px; font-weight: bold; }

.knob {
    width: 44px; height: 44px; border-radius: 50%;
    background: conic-gradient(from 180deg at 50% 50%, #2a2a35 0deg, #1a1a20 180deg, #2a2a35 360deg);
    border: 2px solid #0a0a0c; box-shadow: 0 5px 10px rgba(0,0,0,0.8), inset 0 2px 4px rgba(255,255,255,0.1);
    position: relative; cursor: pointer;
}
.knob::before {
    content: ''; position: absolute; inset: 4px; border-radius: 50%; background: radial-gradient(circle at 50% 10%, #3a3a45, #15151a);
}
.knob::after {
    content: ''; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
    width: 4px; height: 14px; background: #fff; border-radius: 2px; box-shadow: 0 0 5px #fff;
}
.deck-left .knob::after { background: var(--neon-blue); box-shadow: 0 0 8px var(--neon-blue); }
.deck-right .knob::after { background: var(--neon-purple); box-shadow: 0 0 8px var(--neon-purple); }

/* Faders */
.slider-container {
    flex: 1; width: 50px; min-height: 120px; display: flex; justify-content: center; position: relative;
    background: #08080a; border-radius: 8px; border: 1px solid #1a1a20;
    box-shadow: inset 0 5px 15px rgba(0,0,0,0.9), 0 1px 1px rgba(255,255,255,0.05); margin-bottom: 20px;
}
.slider-container::before {
    content: ''; position: absolute; left: 10px; right: 10px; top: 10px; bottom: 10px;
    background: repeating-linear-gradient(to bottom, #222, #222 2px, transparent 2px, transparent 15px);
    opacity: 0.8; pointer-events: none;
}
.slider-container::after {
    content: ''; position: absolute; left: 50%; top: 5px; bottom: 5px; width: 4px;
    transform: translateX(-50%); background: #000; border-radius: 2px;
}

input[type=range].vertical-slider {
    writing-mode: vertical-lr; direction: rtl; -webkit-appearance: none; appearance: none;
    width: 100%; height: 100%; margin: 0; padding: 0; background: transparent; cursor: pointer; z-index: 2;
}

input[type=range].vertical-slider::-webkit-slider-thumb {
    -webkit-appearance: none; height: 35px; width: 48px;
    background: linear-gradient(180deg, #3a3a45 0%, #2a2a30 100%);
    border: 2px solid #0a0a0c; border-radius: 4px;
    box-shadow: 0 8px 15px rgba(0,0,0,0.9), inset 0 2px 2px rgba(255,255,255,0.2); cursor: pointer;
    background-image: linear-gradient(to right, transparent 40%, #fff 40%, #fff 60%, transparent 60%);
}
.deck-left input[type=range].vertical-slider::-webkit-slider-thumb { background-image: linear-gradient(to right, transparent 40%, var(--neon-blue) 40%, var(--neon-blue) 60%, transparent 60%); box-shadow: 0 8px 15px rgba(0,0,0,0.9), inset 0 2px 2px rgba(255,255,255,0.2), 0 0 10px rgba(0,229,255,0.2); }
.deck-right input[type=range].vertical-slider::-webkit-slider-thumb { background-image: linear-gradient(to right, transparent 40%, var(--neon-purple) 40%, var(--neon-purple) 60%, transparent 60%); box-shadow: 0 8px 15px rgba(0,0,0,0.9), inset 0 2px 2px rgba(255,255,255,0.2), 0 0 10px rgba(180,0,255,0.2); }

/* Mute Buttons */
.track-mute {
    width: 90%; padding: 15px 0; border-radius: 8px; font-size: 1rem; font-weight: bold; cursor: pointer;
    background: #15151a; border: 2px solid #2a2a35; color: #505060; transition: all 0.2s;
    box-shadow: 0 5px 10px rgba(0,0,0,0.5), inset 0 2px 5px rgba(255,255,255,0.05);
}
.deck-left .track-mute.active {
    background: rgba(0,229,255,0.15); border-color: var(--neon-blue); color: #fff;
    box-shadow: 0 0 20px rgba(0,229,255,0.4), inset 0 0 15px rgba(0,229,255,0.4); text-shadow: 0 0 8px var(--neon-blue);
}
.deck-right .track-mute.active {
    background: rgba(180,0,255,0.15); border-color: var(--neon-purple); color: #fff;
    box-shadow: 0 0 20px rgba(180,0,255,0.4), inset 0 0 15px rgba(180,0,255,0.4); text-shadow: 0 0 8px var(--neon-purple);
}

/* Center Mixer */
.center-mixer {
    display: flex; flex-direction: column; justify-content: space-between;
}

.master-meters {
    display: flex; gap: 15px; height: 150px; background: #050508; padding: 10px;
    border-radius: 8px; border: 2px solid #1a1a20; box-shadow: inset 0 5px 15px rgba(0,0,0,0.9);
    justify-content: center; margin-bottom: 20px;
}
.meter { width: 24px; height: 100%; background: #111; border-radius: 4px; position: relative; overflow: hidden; }
.meter::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(to bottom, transparent, transparent 4px, #050508 4px, #050508 6px); z-index: 2; pointer-events: none; }
.meter-fill {
    position: absolute; bottom: 0; left: 0; right: 0; height: 0%;
    background: linear-gradient(to top, var(--neon-green) 50%, #ffea00 80%, var(--neon-pink) 95%);
    transition: height 0.05s ease; z-index: 1; box-shadow: 0 0 15px var(--neon-green);
}

/* Crossfader */
.crossfader-section {
    width: 100%; padding: 20px; background: var(--deck-bg); border-radius: 12px;
    border: 1px solid #25252d; box-shadow: inset 0 5px 15px rgba(0,0,0,0.8);
    position: relative; margin-bottom: 20px; flex: 1; display: flex; flex-direction: column; justify-content: center;
}
.cf-label { text-align: center; font-size: 1rem; color: #707080; margin-bottom: 20px; font-weight: bold; letter-spacing: 2px; }
.crossfader-container { position: relative; height: 46px; background: #08080a; border-radius: 6px; box-shadow: inset 0 5px 10px rgba(0,0,0,0.9); border: 1px solid #1a1a20; }
.crossfader-container::after {
    content: ''; position: absolute; top: 50%; left: 10px; right: 10px; height: 6px;
    transform: translateY(-50%); background: #000; border-radius: 3px; pointer-events: none;
}
input[type=range]#crossfader { -webkit-appearance: none; width: 100%; height: 100%; background: transparent; outline: none; position: absolute; top: 0; left: 0; z-index: 2; }
input[type=range]#crossfader::-webkit-slider-thumb {
    -webkit-appearance: none; width: 56px; height: 50px; background: linear-gradient(180deg, #3a3a45 0%, #2a2a30 100%);
    border: 2px solid #0a0a0c; border-radius: 4px; box-shadow: 0 8px 15px rgba(0,0,0,0.9), inset 0 2px 2px rgba(255,255,255,0.2); cursor: pointer;
    background-image: linear-gradient(to right, transparent 45%, var(--neon-pink) 45%, var(--neon-pink) 55%, transparent 55%);
}

/* Master FX */
.master-fx { display: flex; width: 100%; justify-content: space-between; gap: 15px; }
.fx-button {
    flex: 1; padding: 20px 0; background: #15151a; border: 2px solid #2a2a35; border-radius: 10px;
    text-align: center; font-size: 1rem; font-weight: bold; color: #707080; cursor: pointer; transition: all 0.2s; box-shadow: 0 8px 15px rgba(0,0,0,0.5);
}
.fx-button:active, .fx-button.active {
    background: rgba(255,0,85,0.15); border-color: var(--neon-pink); color: #fff;
    box-shadow: 0 0 25px rgba(255,0,85,0.4), inset 0 0 15px rgba(255,0,85,0.4); transform: translateY(4px); text-shadow: 0 0 8px var(--neon-pink);
}

/* Level Complete */
.stats { margin: 20px 0 30px 0; font-size: 1.2rem; color: #aaa; }
.stats span { color: #fff; font-weight: bold; }

/* Responsive Adjustments */

@media (max-width: 1200px) {
    .mixer-board { padding: 15px; gap: 15px; }
    .deck { padding: 15px; }
    .track-strip { padding: 10px 5px; }
    .knob { width: 38px; height: 38px; }
    .slider-container { width: 40px; }
}

@media (max-width: 1024px) {
    #dj-console { padding: 15px; }
    .mixer-board { gap: 10px; }
    .slider-container { height: 140px; width: 40px; }
    .center-mixer { width: 220px; }
    .neon-text { font-size: 2.5rem; }
}

@media (max-width: 900px) {
    /* Tablet Portrait */
    .mixer-board {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
        overflow-y: auto; /* Allow scrolling within the board if needed */
    }
    .center-mixer {
        grid-column: 1 / -1;
        flex-direction: row; flex-wrap: wrap; align-items: stretch;
    }
    .master-meters { height: auto; width: 150px; margin-bottom: 0; }
    .crossfader-section { margin-bottom: 0; margin-left: 15px; flex: 1; }
    .master-fx { width: 100%; margin-top: 15px; }
}

@media (max-width: 768px) {
    body { perspective: none; }
    #dj-console { padding: 10px; align-items: flex-start; overflow-y: auto; }
    
    #hud { padding: 10px; }
    .top-bar { padding: 10px 15px; margin-bottom: 10px; }
    .neon-value { font-size: 1.4rem; }
    #objective-text { font-size: 1rem; }
    .objective-info { margin: 0 10px; }
    
    .mixer-board {
        display: flex; flex-direction: column; gap: 15px;
        padding: 10px; border: none; box-shadow: none; background: transparent;
    }
    
    .deck { padding: 10px; border-radius: 12px; }
    .deck-header { font-size: 1.2rem; margin-bottom: 15px; }
    .track-controls { flex-direction: column; gap: 15px; }
    
    .track-strip {
        flex-direction: row; justify-content: space-between; align-items: center;
        padding: 15px; width: 100%; border-radius: 12px;
    }
    .track-label { writing-mode: vertical-rl; transform: rotate(180deg); margin: 0 15px 0 0; font-size: 1rem; }
    .eq-knobs { flex-direction: row; margin: 0; width: auto; gap: 10px; }
    .knob { width: 34px; height: 34px; }
    .knob-container span { display: none; } /* Hide EQ labels on mobile to save space */
    .slider-container { width: 34px; height: 100px; min-height: 100px; margin: 0 15px; }
    .track-mute { width: 70px; padding: 15px 0; margin: 0; }
    
    .center-mixer {
        background: var(--mixer-bg); border-radius: 12px; padding: 15px; border: 1px solid #25252d;
        flex-direction: column; gap: 15px;
    }
    .master-meters { width: 100%; height: 60px; flex-direction: row; padding: 5px; }
    .meter { height: 100%; width: 50%; }
    .meter-fill { transform: rotate(-90deg); transform-origin: left bottom; width: 100%; height: 100%; left: 100%; } /* Horizontal meters */
    .crossfader-section { margin: 0; width: 100%; padding: 15px; }
    .master-fx { margin: 0; }
    
    /* Horizontal meter fix for mobile */
    .master-meters { flex-direction: column; justify-content: space-around; }
    .meter { width: 100%; height: 20px; }
    .meter::after { background: repeating-linear-gradient(to right, transparent, transparent 4px, #050508 4px, #050508 6px); }
    .meter-fill { bottom: 0; left: 0; right: auto; height: 100% !important; background: linear-gradient(to right, var(--neon-green) 50%, #ffea00 80%, var(--neon-pink) 95%); transition: width 0.05s ease; }
}