:root{--bg: #0b0b12;--panel: #16161f;--accent: #ff2d78;--text: #f4f4f8;--muted: #9a9ab0;color-scheme:dark}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;overscroll-behavior:none}#app{display:flex;flex-direction:column;height:100dvh;max-width:520px;margin:0 auto;padding:env(safe-area-inset-top) 12px calc(env(safe-area-inset-bottom) + 12px);gap:12px}#stage{position:relative;flex:1;min-height:0;border-radius:20px;overflow:hidden;background:#000;display:flex;align-items:center;justify-content:center}#video,#canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}#video{visibility:hidden}#hint{position:relative;z-index:2;color:var(--muted);font-size:15px;text-align:center;padding:0 24px}#rec-dot{position:absolute;top:14px;right:14px;z-index:3;width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 #ff2d78b3;animation:pulse 1.2s infinite}@keyframes pulse{0%{box-shadow:0 0 #ff2d78b3}70%{box-shadow:0 0 0 12px #ff2d7800}to{box-shadow:0 0 #ff2d7800}}#controls{display:flex;gap:10px}.btn{flex:1;padding:15px;border-radius:14px;border:1px solid #2a2a3a;background:var(--panel);color:var(--text);font-size:16px;font-weight:700;text-align:center;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn:disabled{opacity:.5}.btn.primary{background:var(--accent);border-color:var(--accent)}.btn.recording{background:#23232f;border-color:var(--accent);color:var(--accent)}#status{margin:0;min-height:18px;text-align:center;font-size:13px;color:var(--muted)}