*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #ffffff;--fg: #0f0f0f;--muted: #6b7280;--surface: #f4f4f5;--border: #e4e4e7;--accent: #6366f1;--accent-hover: #4f46e5;--accent-fg: #ffffff;--radius: 12px;--radius-lg: 20px;font-family:Inter,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #0f0f0f;--fg: #fafafa;--muted: #71717a;--surface: #1a1a1a;--border: #27272a;--accent: #818cf8;--accent-hover: #a5b4fc;--accent-fg: #0f0f0f}}body{background:var(--bg);color:var(--fg);min-height:100dvh}.app{display:flex;flex-direction:column;min-height:100dvh;width:100%;max-width:480px;margin:0 auto;padding:0 24px}@media(min-width:640px){body{display:flex;align-items:center;justify-content:center;min-height:100dvh;background:var(--surface)}.app{min-height:auto;width:100%;border-radius:24px;border:1px solid var(--border);box-shadow:0 4px 24px #0000000f,0 1px 4px 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.15s}.track-card:hover{background:var(--border)}.track-card.selected{border-color:var(--accent);background:var(--bg);color:var(--accent)}.play-btn{margin-top:4px;width:100%;padding:18px;background:var(--accent);color:var(--accent-fg);border:none;border-radius:var(--radius-lg);font-size:17px;font-family:inherit;font-weight:600;cursor:pointer;transition:background .15s}.play-btn:hover:not(:disabled){background:var(--accent-hover)}.play-btn:disabled{opacity:.3;cursor:not-allowed}.playing-content{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;width:100%}.live-badge{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.2px;color:#dc2626}.live-dot{width:6px;height:6px;background:#dc2626;border-radius:50%;animation:pulse 1.5s ease-in-out infinite}@keyframes 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