.device-check{max-width:900px;margin:0 auto;padding:2rem;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:#1a1a2e}.device-check h1{text-align:center;margin-bottom:2rem;font-size:2rem;font-weight:600}.device-check h2{font-size:1.25rem;font-weight:500;margin-bottom:1rem;color:#333}.permission-prompt{text-align:center;padding:3rem;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:16px;color:#fff;box-shadow:0 10px 40px #667eea4d}.permission-prompt h2{color:#fff;font-size:1.75rem;margin-bottom:1rem}.permission-prompt p{font-size:1.1rem;opacity:.95;margin-bottom:1.5rem}.permission-prompt.error{background:linear-gradient(135deg,#f093fb,#f5576c)}.permission-button{background:#fff;color:#667eea;border:none;padding:1rem 2.5rem;font-size:1.1rem;font-weight:600;border-radius:50px;cursor:pointer;transition:transform .2s,box-shadow .2s}.permission-button:hover{transform:translateY(-2px);box-shadow:0 5px 20px #0003}.error-message{background:#fee2e2;color:#dc2626;padding:1rem;border-radius:8px;margin-bottom:1.5rem;text-align:center}.device-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem}@media(max-width:768px){.device-grid{grid-template-columns:1fr}}.device-section{background:#f8fafc;border-radius:12px;padding:1.5rem;border:1px solid #e2e8f0}.select-wrapper{margin-bottom:1rem}.select-wrapper select{width:100%;padding:.75rem 1rem;font-size:1rem;border:2px solid #e2e8f0;border-radius:8px;background:#fff;cursor:pointer;transition:border-color .2s}.select-wrapper select:hover{border-color:#cbd5e1}.select-wrapper select:focus{outline:none;border-color:#667eea}.preview-container{border-radius:8px;overflow:hidden;background:#1a1a2e;position:relative}.video-preview{aspect-ratio:16 / 9}.video-preview video{width:100%;height:100%;object-fit:cover;display:block;transform:scaleX(-1)}.no-device{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#94a3b8;font-size:.9rem}.audio-preview{padding:2rem;background:linear-gradient(135deg,#1a1a2e,#2d2d44)}.audio-meter{text-align:center}.audio-label{color:#94a3b8;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1rem}.meter-track{height:12px;background:#374151;border-radius:6px;overflow:hidden;margin-bottom:1rem}.meter-fill{height:100%;background:linear-gradient(90deg,#10b981,#34d399 50%,#fbbf24,#ef4444);border-radius:6px;transition:width .05s ease-out}.meter-hint{color:#94a3b8;font-size:.85rem}.audio-graph{margin-top:1.5rem;text-align:center}.audio-canvas{width:100%;max-width:400px;height:150px;border-radius:8px;background:#1a1a2e}.recording-section{margin-top:1.5rem;text-align:center}.recording-controls{display:flex;justify-content:center;gap:.75rem;margin-top:.75rem}.record-button,.stop-button,.play-button,.delete-button{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.95rem;font-weight:500;border:none;border-radius:50px;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}.record-button{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.record-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 15px #ef444466}.record-button:disabled{opacity:.5;cursor:not-allowed}.stop-button{background:linear-gradient(135deg,#6b7280,#4b5563);color:#fff}.stop-button.recording{background:linear-gradient(135deg,#ef4444,#dc2626);animation:pulse 1.5s infinite}.stop-button:hover{transform:translateY(-2px);box-shadow:0 4px 15px #6b728066}.play-button{background:linear-gradient(135deg,#10b981,#059669);color:#fff}.play-button:hover{transform:translateY(-2px);box-shadow:0 4px 15px #10b98166}.delete-button{background:#374151;color:#94a3b8}.delete-button:hover{background:#4b5563;color:#fff}.record-icon{display:inline-block;width:12px;height:12px;background:currentColor;border-radius:50%}.stop-icon{display:inline-block;width:12px;height:12px;background:currentColor;border-radius:2px}.play-icon{display:inline-block;width:0;height:0;border-left:10px solid currentColor;border-top:6px solid transparent;border-bottom:6px solid transparent}.playback-section{margin-top:1rem;padding-top:1rem;border-top:1px solid #374151}.playback-controls{display:flex;justify-content:center;gap:.75rem}.playback-hint{color:#94a3b8;font-size:.8rem;margin-top:.75rem}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.device-info{text-align:center;margin-top:2rem;color:#64748b;font-size:.9rem}body{background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh}