*{box-sizing:border-box;margin:0;padding:0}body{color:#fff;background:linear-gradient(135deg,#1a2a6c,#2a3a7c);flex-direction:column;align-items:center;min-height:100vh;padding:20px;display:flex}h1{background:linear-gradient(to right, var(--accent), var(--accent));-webkit-text-fill-color:transparent;text-shadow:none;-webkit-background-clip:text;margin-bottom:10px;font-size:2.5rem}.subtitle{opacity:.9;margin-bottom:15px;font-size:1.2rem}a:link{color:#fff;text-decoration:none}a:visited{color:#fff}a:hover{color:orange}.container{flex-wrap:wrap;justify-content:center;gap:30px;width:100%;max-width:1200px;display:flex}.wave-container{border-radius:var(--radius-md);min-width:600px;box-shadow:none;background:#1e286499;flex:1;padding:15px;overflow:hidden}canvas{border-radius:var(--radius-lg);background:#0a1432b3;width:100%;height:400px;display:block}.controls{border-radius:var(--radius-md);box-shadow:none;background:#1e286499;flex:0 0 300px;padding:25px}.control-group{margin-bottom:25px}.control-group h3{color:var(--accent);border-bottom:1px solid #4facfe4d;margin-bottom:15px;padding-bottom:8px}.slider-container{margin-bottom:18px}.slider-label{justify-content:space-between;margin-bottom:8px;font-size:.95rem;display:flex}input[type=range]{border-radius:var(--radius-sm);-webkit-appearance:none;background:#4facfe33;outline:none;width:100%;height:8px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:20px;height:20px;box-shadow:0 0 10px #4facfe80}.button-group{gap:12px;margin-top:20px;display:flex}button{border-radius:var(--radius-md);background:linear-gradient(to right, var(--accent), var(--accent));color:#fff;cursor:pointer;border:none;flex:1;padding:12px;font-weight:700;transition:all .3s;box-shadow:0 4px 10px #0003}button:hover{transform:translateY(-2px);box-shadow:0 6px 15px #0000004d}button:active{transform:translateY(0)}.wave-type{gap:10px;margin-top:10px;display:flex}.wave-option{text-align:center;border-radius:var(--radius-md);cursor:pointer;background:#4facfe33;flex:1;padding:10px;transition:all .3s}.wave-option.active{background:linear-gradient(to right, var(--accent), var(--accent));box-shadow:0 0 10px #4facfe80}.instructions{border-radius:var(--radius-md);max-width:800px;box-shadow:none;background:#1e286499;margin-top:30px;padding:25px}.instructions h3{color:var(--accent);margin-bottom:15px}.instructions ul{padding-left:20px}.instructions li{margin-bottom:10px;line-height:1.5}.footer{text-align:center;opacity:.7;margin-top:30px;font-size:.9rem}@media (width<=900px){.container{flex-direction:column;align-items:center}.wave-container,.controls{width:100%;max-width:600px}}html,body{--page-bg:#0f1115;--surface:#171a20;--surface-strong:#1b1f26;--surface-soft:#14171c;--text-main:#e7e9ee;--text-subtle:#a3adbb;--text-soft:#828c9a;--line:#2a2f37;--line-strong:#3a404a;--line-soft:#23272e;--accent:#7aa2ff;--accent-soft:#7aa2ff24;--accent-2:#4fd1c5;--shadow-main:0 1px 2px #00000080;--shadow-soft:0 1px 2px #0006;color-scheme:dark;background:var(--page-bg);color:var(--text-main)}body{background:var(--page-bg);align-items:stretch;padding:100px 24px 48px}.header{text-align:left;max-width:none;margin-bottom:28px}h1{letter-spacing:-.025em;-webkit-text-fill-color:currentColor;color:var(--text-main);background:0 0;margin:0 0 8px;font-size:clamp(30px,4.5vw,44px);font-weight:650}.subtitle{color:var(--text-subtle);opacity:1;margin:0;font-size:14px}.container{justify-content:flex-start;gap:32px;max-width:1120px;margin:0 auto}.wave-container{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:none}canvas{background:var(--surface-soft);border-radius:var(--radius-md)}.controls{border:0;border-left:1px solid var(--line);box-shadow:none;background:0 0;border-radius:0;padding:0 0 0 28px}.control-group h3{color:var(--text-soft);letter-spacing:.12em;text-transform:uppercase;border-bottom:1px solid var(--line);margin-bottom:14px;padding-bottom:10px;font-size:11px;font-weight:600}input[type=range]{background:var(--line)}input[type=range]::-webkit-slider-thumb{background:var(--accent)}.instructions{border:0;border-top:1px solid var(--line);color:var(--text-subtle);background:0 0;border-radius:0;padding:18px 0 0}@media (width<=900px){body{padding:88px 16px 32px}.controls{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.wave-container{min-width:0}}