:root {
            --bg: #0a0806;
            --gold: #ffd074;
            --cyan: #00f3ff;
            --orange: #ff8c42;
            --green: #0aff0a;
            --dim: #555;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html, body {
            width: 100%; height: 100%; overflow: hidden;
            background: var(--bg); color: #fff;
            font-family: 'Space Mono', monospace;
            user-select: none; -webkit-user-select: none;
        }
        canvas { position: fixed; top: 0; left: 0; pointer-events: none; }
        #bgCanvas { z-index: 0; }
        #pulseCanvas { z-index: 5; }
        .scene {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            z-index: 10; opacity: 0; pointer-events: none;
            transition: opacity 0.8s ease;
        }
        .scene.active { opacity: 1; pointer-events: auto; }
        .el {
            position: absolute;
            left: 50%; transform: translateX(-50%);
            text-align: center;
            opacity: 0;
            transition: opacity 0.6s ease;
        }
        .el.vis { opacity: 1; }
        .intro-num {
            top: 25%;
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(6rem, 22vw, 17rem);
            font-weight: 900;
            color: var(--gold);
            text-shadow: 0 0 100px rgba(255,208,116,0.5);
        }
        .intro-line1 {
            top: 56%;
            font-size: clamp(0.9rem, 2.5vw, 1.5rem);
            color: rgba(255,255,255,0.6);
            letter-spacing: 1px;
        }
        .intro-line2 {
            top: 64%;
            font-size: clamp(1rem, 2.8vw, 1.7rem);
            color: rgba(255,255,255,0.9);
            letter-spacing: 1px;
            font-weight: 700;
        }
        .fact-grid {
            position: absolute;
            top: 5%;
            left: 50%;
            transform: translateX(-50%);
            width: 90%;
            max-width: 1200px;
            height: 55%;
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 10px;
            padding: 0;
        }
        .fact-col {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding-top: 2vh;
        }
        .fact-digit {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(3.5rem, 12vw, 9rem);
            font-weight: 900;
            color: var(--gold);
            text-shadow: 0 0 60px rgba(255,208,116,0.4);
            opacity: 0;
            transition: opacity 0.5s ease;
            line-height: 1;
        }
        .fact-digit .bang {
            color: var(--cyan);
            font-size: 0.7em;
        }
        .fact-digit.vis { opacity: 1; }
        .fact-calc {
            font-size: clamp(0.8rem, 2.2vw, 1.4rem);
            font-weight: 700;
            color: rgba(255,255,255,0.7);
            margin-top: clamp(10px, 2vh, 20px);
            opacity: 0;
            transition: opacity 0.5s ease;
            white-space: nowrap;
        }
        .fact-calc.vis { opacity: 1; }
        .fact-result {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(2rem, 7vw, 5rem);
            font-weight: 700;
            color: var(--cyan);
            text-shadow: 0 0 40px rgba(0,243,255,0.4);
            margin-top: clamp(8px, 2vh, 15px);
            opacity: 0;
            transition: opacity 0.5s ease;
            line-height: 1;
        }
        .fact-result.vis { opacity: 1; }
        .fact-sum {
            position: absolute;
            bottom: 8%;
            left: 50%;
            transform: translateX(-50%);
            text-align: center;
        }
        .fact-sum-eq {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(1.3rem, 4.5vw, 3rem);
            font-weight: 700;
        }
        .sum-part {
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        .sum-part.vis { opacity: 1; }
        .sum-part.n { color: var(--cyan); }
        .sum-part.o { color: var(--dim); }
        .fact-sum-result {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(4rem, 14vw, 11rem);
            font-weight: 900;
            color: var(--gold);
            text-shadow: 0 0 100px rgba(255,208,116,0.6);
            margin-top: clamp(5px, 1vh, 10px);
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        .fact-sum-result.vis { opacity: 1; }
        .explain-title {
            top: 12%;
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(4rem, 16vw, 12rem);
            font-weight: 900;
            color: var(--gold);
            text-shadow: 0 0 80px rgba(255,208,116,0.5);
        }
        .explain-c1 {
            top: 42%;
            font-size: clamp(1.1rem, 3vw, 2rem);
            color: var(--gold);
            font-weight: 700;
        }
        .explain-c2 {
            top: 54%;
            font-size: clamp(0.8rem, 2.2vw, 1.2rem);
            color: rgba(255,255,255,0.8);
            max-width: 90%;
            line-height: 1.6;
            padding: 0 15px;
        }
        .explain-c3 {
            top: 68%;
            font-size: clamp(0.9rem, 2.5vw, 1.4rem);
            color: rgba(255,255,255,0.6);
        }
        .explain-c4 {
            top: 76%;
            font-size: clamp(0.9rem, 2.5vw, 1.4rem);
            color: rgba(255,255,255,0.6);
        }
        .fnum {
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        .fnum.hl {
            color: var(--cyan);
            text-shadow: 0 0 20px rgba(0,243,255,0.6);
        }
        .fnum.hl-gold {
            color: var(--gold);
            text-shadow: 0 0 20px rgba(255,208,116,0.6);
        }
        .radio-person {
            top: 6%;
            width: clamp(90px, 25vw, 180px);
            height: clamp(75px, 21vw, 150px);
        }
        .rp-head {
            position: absolute; bottom: 55%; left: 50%; transform: translateX(-50%);
            width: 28%; aspect-ratio: 1;
            background: radial-gradient(circle at 40% 30%, #4a4a4a, #2a2a2a);
            border-radius: 50%;
        }
        .rp-body {
            position: absolute; bottom: 15%; left: 50%; transform: translateX(-50%);
            width: 55%; height: 45%;
            background: linear-gradient(#3a3a3a, #1a1a1a);
            border-radius: 40% 40% 10% 10%;
        }
        .rp-hp {
            position: absolute; bottom: 58%; left: 50%; transform: translateX(-50%);
            width: 40%; height: 20%;
        }
        .rp-band {
            position: absolute; top: 0; left: 5%; width: 90%; height: 50%;
            border: 3px solid #555; border-bottom: none;
            border-radius: 50% 50% 0 0;
        }
        .rp-ear {
            position: absolute; bottom: 0; width: 30%; height: 65%;
            background: linear-gradient(#666, #444); border-radius: 4px;
        }
        .rp-ear.l { left: 0; } .rp-ear.r { right: 0; }
        .rp-desk {
            position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
            width: 100%; height: 20%;
            background: linear-gradient(#2a2520, #1a1510);
            border-radius: 5px 5px 0 0;
        }
        .rp-waves { position: absolute; top: 0; right: 0; opacity: 0; transition: opacity 0.5s; }
        .rp-wave {
            position: absolute; width: 14px; height: 14px;
            border: 2px solid var(--cyan); border-radius: 50%;
            opacity: 0; animation: wpulse 2s infinite;
        }
        .rp-wave:nth-child(2) { animation-delay: 0.6s; }
        .rp-wave:nth-child(3) { animation-delay: 1.2s; }
        @keyframes wpulse {
            0% { transform: scale(0.5); opacity: 0.8; }
            100% { transform: scale(3); opacity: 0; }
        }
        .radio-freq {
            top: 35%;
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(2rem, 9vw, 7rem);
            font-weight: 900;
            color: var(--cyan);
            text-shadow: 0 0 60px rgba(0,243,255,0.5);
        }
        .radio-freq .u {
            font-size: 0.3em;
            color: rgba(0,243,255,0.5);
            margin-left: 8px;
        }
        .radio-wave {
            top: 52%;
            width: clamp(120px, 45vw, 350px);
            height: clamp(35px, 6vh, 50px);
        }
        #waveCanvas { width: 100%; height: 100%; }
        .radio-c1 {
            top: 70%;
            font-size: clamp(0.75rem, 2vw, 1.15rem);
            color: rgba(255,255,255,0.85);
            max-width: 95%;
            padding: 0 10px;
        }
        .radio-c2 {
            top: 80%;
            font-size: clamp(0.7rem, 1.8vw, 1rem);
            color: rgba(255,255,255,0.6);
        }
        .genre {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(1.8rem, 6vw, 4.5rem);
            font-weight: 700;
            color: var(--orange);
            text-shadow: 0 0 40px rgba(255,140,66,0.4);
        }
        .g1 { top: 12%; }
        .g2 { top: 28%; }
        .g3 { top: 44%; }
        .g4 { top: 60%; }
        .genre-q {
            top: 80%;
            font-size: clamp(0.95rem, 2.5vw, 1.5rem);
            color: rgba(255,255,255,0.9);
        }
        .chord-q {
            top: 10%;
            font-size: clamp(0.95rem, 2.5vw, 1.5rem);
            color: rgba(255,255,255,0.9);
        }
        .chord-row {
            position: absolute;
            top: 32%;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: clamp(20px, 8vw, 90px);
        }
        .chord-n {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(4rem, 14vw, 11rem);
            font-weight: 900;
            color: var(--orange);
            text-shadow: 0 0 60px rgba(255,140,66,0.4);
            opacity: 0;
            transition: opacity 0.4s ease, transform 0.15s ease, color 0.15s ease;
        }
        .chord-n.vis { opacity: 1; }
        .chord-n.play {
            color: #ffcc99;
            text-shadow: 0 0 100px rgba(255,180,100,0.9);
            transform: scale(1.12);
        }
        .chord-c1 {
            top: 68%;
            font-size: clamp(0.95rem, 2.5vw, 1.4rem);
            color: rgba(255,255,255,0.9);
        }
        .chord-c2 {
            top: 78%;
            font-size: clamp(0.85rem, 2.2vw, 1.2rem);
            color: rgba(255,255,255,0.7);
        }
        .bpm-big {
            top: 22%;
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(7rem, 28vw, 22rem);
            font-weight: 900;
            color: var(--green);
            text-shadow: 0 0 120px rgba(10,255,10,0.4);
            line-height: 0.9;
            transition: transform 0.05s ease;
        }
        .bpm-big.pulse { transform: translateX(-50%) scale(1.04); }
        .bpm-label {
            top: 52%;
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(1.4rem, 4vw, 3.5rem);
            color: rgba(10,255,10,0.5);
            letter-spacing: clamp(5px, 1vw, 10px);
        }
        .bpm-c1 {
            top: 70%;
            font-size: clamp(0.85rem, 2.2vw, 1.25rem);
            color: rgba(255,255,255,0.85);
        }
        .bpm-c2 {
            top: 80%;
            font-size: clamp(0.85rem, 2.2vw, 1.25rem);
            color: rgba(255,255,255,0.7);
        }
        .fin-big {
            top: 15%;
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(5rem, 20vw, 15rem);
            font-weight: 900;
            background: linear-gradient(135deg, var(--gold), var(--cyan), var(--orange), var(--green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            filter: drop-shadow(0 0 60px rgba(255,208,116,0.3));
        }
        .fin-l { font-size: clamp(0.8rem, 2.2vw, 1.25rem); }
        .f1 { top: 48%; color: var(--gold); }
        .f2 { top: 57%; color: var(--cyan); }
        .f3 { top: 66%; color: var(--orange); }
        .f4 { top: 75%; color: var(--green); }
        .ctrls {
            position: fixed; top: 50%; left: 50%;
            transform: translate(-50%, -50%);
            z-index: 100;
            display: flex; flex-direction: column; align-items: center;
            transition: opacity 0.5s ease;
        }
        .ctrls.hide { opacity: 0; pointer-events: none; }
        .btn {
            background: rgba(0,0,0,0.9);
            border: 2px solid rgba(255,208,116,0.5);
            color: var(--gold);
            padding: clamp(15px, 3vw, 20px) clamp(40px, 8vw, 55px);
            font-family: 'Orbitron', sans-serif;
            text-transform: uppercase;
            font-weight: 700;
            letter-spacing: clamp(2px, 0.5vw, 4px);
            cursor: pointer;
            font-size: clamp(0.9rem, 2.2vw, 1.2rem);
            transition: all 0.3s ease;
        }
        .btn:hover {
            border-color: var(--gold);
            box-shadow: 0 0 40px rgba(255,208,116,0.3);
            transform: scale(1.05);
        }
        .hint {
            margin-top: clamp(12px, 2vh, 20px);
            font-size: clamp(0.65rem, 1.5vw, 0.75rem);
            color: rgba(255,255,255,0.3);
            letter-spacing: 2px;
            text-transform: uppercase;
        }
        .mute {
            position: fixed; top: clamp(12px, 2vh, 20px); right: clamp(12px, 2vw, 20px);
            background: none; border: none;
            font-size: clamp(1.2rem, 3vw, 1.5rem); cursor: pointer;
            color: rgba(255,255,255,0.5);
            z-index: 200;
            transition: color 0.3s ease;
        }
        .mute:hover { color: #fff; }
        .prog {
            position: fixed; bottom: 0; left: 0;
            height: 3px; width: 0%;
            background: linear-gradient(90deg, var(--gold), var(--cyan), var(--orange), var(--green));
            z-index: 200;
        }
        .foot {
            position: fixed; bottom: clamp(12px, 2vh, 20px); width: 100%;
            text-align: center;
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(0.8rem, 2vw, 1.2rem);
            color: rgba(255,255,255,0.4);
            text-decoration: none; letter-spacing: 2px;
            z-index: 100;
            opacity: 1; pointer-events: auto;
            transition: all 0.3s ease;
        }
        .foot:hover { color: var(--gold); }
        #again {
            display: none;
            position: fixed; bottom: clamp(45px, 8vh, 60px); left: 50%;
            transform: translateX(-50%);
            z-index: 100;
            padding: clamp(8px, 1.5vh, 12px) clamp(25px, 5vw, 35px);
            font-size: clamp(0.8rem, 1.8vw, 0.9rem);
        }
        @media (max-width: 480px) {
            .intro-line1 { top: 58%; }
            .intro-line2 { top: 66%; }
            .fact-grid { top: 3%; height: 50%; }
            .fact-digit { font-size: clamp(2.5rem, 10vw, 5rem); }
            .fact-calc { font-size: 0.7rem; }
            .fact-result { font-size: clamp(1.5rem, 6vw, 3rem); }
            .fact-sum { bottom: 12%; }
            .fact-sum-result { font-size: clamp(3rem, 12vw, 8rem); }
            .explain-title { top: 10%; font-size: clamp(3rem, 14vw, 8rem); }
            .explain-c1 { top: 38%; }
            .explain-c2 { top: 50%; }
            .explain-c3 { top: 64%; font-size: 0.8rem; }
            .explain-c4 { top: 72%; font-size: 0.8rem; }
        }
        @media (max-height: 600px) {
            .intro-num { top: 20%; font-size: clamp(5rem, 20vw, 12rem); }
            .intro-line1 { top: 52%; }
            .intro-line2 { top: 60%; }
            .fact-grid { top: 2%; height: 45%; }
            .fact-digit { font-size: clamp(2.5rem, 9vw, 6rem); }
            .fact-result { font-size: clamp(1.5rem, 5vw, 3.5rem); }
            .fact-sum { bottom: 5%; }
            .fact-sum-eq { font-size: clamp(1rem, 3.5vw, 2rem); }
            .fact-sum-result { font-size: clamp(3rem, 10vw, 7rem); }
            .explain-title { top: 8%; font-size: clamp(3rem, 14vw, 8rem); }
            .explain-c1 { top: 36%; }
            .explain-c2 { top: 48%; }
            .explain-c3 { top: 60%; }
            .explain-c4 { top: 68%; }
        }