:root{color-scheme:dark;--bg: #0f0f10;--fg: #f2f2f0;--muted: #9a9a96;--accent: #1d9e75;--accent-live: #d85a30;--card: #1a1a1c}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--fg)}.app{max-width:520px;margin:0 auto;padding:48px 24px;text-align:center}h1{font-weight:600;font-size:28px;margin:0 0 4px}.hint{color:var(--muted);margin:0 0 40px;font-size:15px}.mic{width:240px;height:240px;border-radius:50%;border:none;font-size:18px;font-weight:500;color:#fff;background:var(--accent);cursor:pointer;transition:transform .1s ease,background .2s ease;padding:16px}.mic:active{transform:scale(.97)}.mic:disabled{cursor:default;opacity:.85}.mic--listening{background:var(--accent-live);animation:pulse 1.4s ease-in-out infinite}.mic--thinking{background:#444}.mic--speaking{background:#185fa5}.mic--free{background:#2b4c7e}@keyframes pulse{0%,to{box-shadow:0 0 #d85a3073}50%{box-shadow:0 0 0 22px 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