* { box-sizing: border-box; font-family: Arial, sans-serif; }
body { background-color: #f4f4f9; margin: 0; padding: 10px; color: #333; }
.container { max-width: 800px; margin: 0 auto; padding-bottom: 30px; }
h1 { text-align: center; font-size: 1.5rem; }
h3 { margin-top: 0; border-bottom: 1px solid #eee; padding-bottom: 5px; font-size: 1.1rem; width: 100%; }
.panel { background: #fff; padding: 15px; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); margin-bottom: 15px; display: flex; flex-wrap: wrap; gap: 10px; }
.controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; width: 100%; }
.controls label { font-weight: bold; display: flex; flex-direction: column; font-size: 0.85rem; flex-grow: 1; }
input, select { padding: 8px; margin-top: 5px; border: 1px solid #ccc; border-radius: 4px; }
button { background-color: #007bff; color: white; border: none; padding: 12px; border-radius: 4px; cursor: pointer; flex-grow: 1; }
button:disabled { background-color: #ccc; }
button.recording { background-color: #dc3545; }
button.success-btn { background-color: #28a745; font-weight: bold; width: 100%; }
video, canvas { width: 100%; height: auto; background-color: #000; border-radius: 8px; display: block; }
.hidden { display: none !important; }