.sound-generator {
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 0 1rem;
}

.sound-generator h1 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 2rem;
}

.sound-mixer {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.sound-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.category {
    background: var(--gray-100);
    padding: 1.5rem;
    border-radius: 8px;
}

.category h2 {
    color: var(--primary);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

.sound-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sound-item {
    background: var(--white);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.sound-item label {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sound-item span {
    font-weight: 500;
}

.sound-item input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--gray-200);
    outline: none;
    -webkit-appearance: none;
    transition: background 0.3s ease;
}

.sound-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s ease;
}

.sound-item input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--primary-dark);
}

.main-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin: 2rem 0;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: 8px;
}

.timer-control select {
    padding: 0.5rem 1rem;
    border: 2px solid var(--primary);
    border-radius: 4px;
    background: var(--white);
    color: var(--primary);
    font-size: 1rem;
    cursor: pointer;
    outline: none;
}

.volume-value {
    font-size: 0.875rem;
    color: var(--gray-800);
    text-align: right;
}

.presets {
    margin-top: 2rem;
    text-align: center;
}

.presets h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.preset-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.preset-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary);
    border-radius: 8px;
    background: var(--white);
    color: var(--primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.preset-btn:hover {
    background: var(--primary);
    color: var(--white);
}

@media (max-width: 768px) {
    .sound-mixer {
        padding: 1rem;
    }
    
    .main-controls {
        flex-direction: column;
        gap: 1rem;
    }
    
    .preset-buttons {
        flex-direction: column;
    }
    
    .preset-btn {
        width: 100%;
    }
}