*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#333}.container{max-width:800px;margin:0 auto;padding:40px 20px}.card{background:#fff;border-radius:16px;padding:40px;box-shadow:0 10px 40px #0000001a}.header{text-align:center;margin-bottom:40px}.header h1{font-size:2.5rem;color:#667eea;margin-bottom:10px}.header p{font-size:1.1rem;color:#666}.button{width:100%;padding:16px 32px;font-size:1.1rem;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease;margin-bottom:16px}.button-primary{background:#667eea;color:#fff}.button-primary:hover{background:#5568d3;transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.button-secondary{background:#f0f0f0;color:#333}.button-secondary:hover{background:#e0e0e0}.button-danger{background:#ef4444;color:#fff}.button-danger:hover{background:#dc2626}.button:disabled{opacity:.5;cursor:not-allowed;transform:none}.input{width:100%;padding:14px;font-size:1rem;border:2px solid #e0e0e0;border-radius:8px;margin-bottom:16px;transition:border-color .3s ease}.input:focus{outline:none;border-color:#667eea}.select{width:100%;padding:14px;font-size:1rem;border:2px solid #e0e0e0;border-radius:8px;margin-bottom:16px;background:#fff;cursor:pointer}.status{padding:12px 20px;border-radius:8px;margin-bottom:20px;text-align:center;font-weight:500}.status-success{background:#d1fae5;color:#065f46}.status-warning{background:#fef3c7;color:#92400e}.status-error{background:#fee2e2;color:#991b1b}.session-info{background:#f9fafb;padding:24px;border-radius:12px;margin-bottom:24px}.session-code{font-size:2rem;font-weight:700;letter-spacing:4px;color:#667eea;text-align:center;margin:20px 0}.qr-code{display:flex;justify-content:center;margin:20px 0}.subtitle-box{background:#000c;color:#fff;padding:20px;border-radius:12px;margin-top:20px;min-height:100px;font-size:1.2rem;line-height:1.6}.subtitle-text{text-align:center}.listener-count{text-align:center;color:#666;margin-top:10px;font-size:.9rem}.audio-controls{display:flex;justify-content:center;gap:16px;margin:24px 0}.loading{text-align:center;padding:40px;color:#666}.error-message{background:#fee2e2;color:#991b1b;padding:16px;border-radius:8px;margin-bottom:20px;text-align:center}@media (max-width: 600px){.header h1{font-size:2rem}.container{padding:20px 16px}.card{padding:24px}}