.synth-panel {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.synth-layout {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .synth-layout {
        flex-direction: column;
    }
}

.synth-sidebar {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.synth-main {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: rgba(0,0,0,0.2);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.05);
}

.control-group h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* Presets */
.preset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.btn-preset {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-main);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

.btn-preset:hover {
    background: rgba(34, 197, 94, 0.1);
    border-color: #22c55e;
    color: white;
}

/* Waveforms */
.waveform-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.btn-wave {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-muted);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.btn-wave:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

.btn-wave.active {
    background: rgba(56, 189, 248, 0.15);
    border-color: #38bdf8;
    color: #38bdf8;
    font-weight: 600;
}

/* Sliders */
.slider-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.slider-row:last-child {
    margin-bottom: 0;
}

.slider-row label {
    font-size: 0.9rem;
    color: var(--text-main);
    min-width: 100px;
}

.slider-row input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    outline: none;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #38bdf8;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
    transition: transform 0.1s;
}

.slider-row input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.val-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: #38bdf8;
    min-width: 45px;
    text-align: right;
    background: rgba(0,0,0,0.3);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

/* Actions */
.synth-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.btn-play {
    padding: 1rem 3rem !important;
    font-size: 1.2rem !important;
    border-radius: 50px !important;
    background: linear-gradient(135deg, #22c55e, #16a34a) !important;
}

.btn-export {
    padding: 1rem 2rem !important;
    font-size: 1.1rem !important;
    border-radius: 50px !important;
}