.doppler-hero-section {
    background: linear-gradient(135deg, #0d6efd 0%, #6f42c1 100%);
    min-height: 40vh;
    padding: 80px 0;
    position: relative;
}

.simulation-container {
    border-left: 4px solid #0d6efd;
}

.viz-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.physics-info {
    border-left: 4px solid #20c997;
}

.audio-player-container {
    border-radius: 10px;
}

/* Canvas styling */
canvas {
    background: #000;
    border-radius: 4px;
    display: block;
    margin: 0 auto;
}