.recorder-panel {
            background: #fefefe;
            border-radius: 28px;
            box-shadow: 0 12px 30px rgba(0,0,0,0.05);
            padding: 1.8rem 1.5rem;
            margin-bottom: 2rem;
            border: 1px solid rgba(0,0,0,0.05);
        }
        .visualizer-canvas {
            width: 100%;
            height: 140px;
            background: #0a0f1c;
            border-radius: 24px;
            display: block;
            margin: 20px 0 15px;
            box-shadow: inset 0 0 8px rgba(0,0,0,0.2);
        }
        .timer-display {
            font-family: 'Courier New', 'Fira Code', monospace;
            font-size: 2.4rem;
            font-weight: 600;
            letter-spacing: 2px;
            background: #eef2ff;
            display: inline-block;
            padding: 0.2rem 1rem;
            border-radius: 60px;
            color: #1e2a5e;
        }
        .status-badge {
            font-size: 0.85rem;
            padding: 0.3rem 0.9rem;
            border-radius: 40px;
            background: #e9ecef;
        }
        .recorder-btn-group .btn {
            margin: 0.3rem 0.2rem;
            border-radius: 40px;
            padding: 0.5rem 1.3rem;
            transition: all 0.2s;
        }
        .audio-info {
            background: #f8fafc;
            border-radius: 20px;
            padding: 1rem;
            font-size: 0.9rem;
        }
        .format-badge {
            background: #1e2a5e;
            color: white;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-weight: 500;
        }
        .microphone-level {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .level-bar-container {
            background: #dee2e6;
            border-radius: 12px;
            height: 10px;
            flex: 1;
            overflow: hidden;
        }
        .level-fill {
            width: 0%;
            height: 100%;
            background: linear-gradient(90deg, #2ecc71, #f1c40f, #e67e22);
            border-radius: 12px;
            transition: width 0.05s linear;
        }
        .glow-text {
            color: #2c3e66;
        }
        .feature-list li {
            margin-bottom: 0.6rem;
        }
        .deep-dive-card {
            background: #ffffff;
            border-left: 5px solid #4361ee;
        }
        .privacy-note {
            background: #e9f7ef;
            border-left: 4px solid #2ecc71;
            color: #145c33;
        }
        .example-preset {
            cursor: pointer;
            background: #f1f5f9;
            border-radius: 50px;
            padding: 0.3rem 1rem;
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: 0.1s;
        }
        .example-preset:hover {
            background: #e0e7ff;
            transform: translateY(-1px);
        }
        .tech-note {
            background: #f0f4ff;
            border-radius: 16px;
            padding: 1rem 1.2rem;
            margin: 1.2rem 0;
            font-size: 0.9rem;
            border-left: 4px solid #4361ee;
        }
        @media (max-width: 768px) {
            .timer-display { font-size: 1.8rem; }
            .recorder-btn-group .btn { padding: 0.4rem 1rem; font-size: 0.8rem; }
        }