/* ==========================================
   PHYSICS CUSTOMIZATION PANEL STYLES
   ========================================== */

.physics-panel {
    max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
}

.preset-selector {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(0, 255, 157, 0.05);
    border: 1px solid rgba(0, 255, 157, 0.2);
    border-radius: 12px;
}

.preset-selector h3 {
    margin: 0 0 1rem 0;
    color: var(--accent-primary);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.preset-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
}

.preset-btn {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    background: rgba(30, 30, 45, 0.8);
    border: 2px solid rgba(0, 255, 157, 0.2);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.preset-btn:hover {
    background: rgba(0, 255, 157, 0.1);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.preset-btn.active {
    background: rgba(0, 255, 157, 0.15);
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px rgba(0, 255, 157, 0.3);
}

.preset-btn strong {
    display: block;
    font-size: 1rem;
    color: var(--accent-primary);
    margin-bottom: 0.25rem;
}

.preset-btn span {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.3;
}

.physics-sections {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.physics-section {
    padding: 1.5rem;
    background: rgba(20, 20, 35, 0.6);
    border: 1px solid rgba(0, 255, 157, 0.2);
    border-radius: 12px;
}

.physics-section h3 {
    margin: 0 0 1rem 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: rgba(0, 255, 157, 0.05);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.toggle-label:hover {
    background: rgba(0, 255, 157, 0.1);
}

.toggle-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

.toggle-label span {
    color: var(--text-primary);
    font-weight: 500;
}

.physics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.physics-grid .input-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.physics-grid .input-field label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.unit-label {
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.physics-grid input[type="range"] {
    width: 100%;
    height: 6px;
    background: rgba(0, 255, 157, 0.1);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.physics-grid input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 255, 157, 0.5);
}

.physics-grid input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(0, 255, 157, 0.5);
}

.physics-grid input[type="range"]:hover::-webkit-slider-thumb {
    background: var(--accent-secondary);
    box-shadow: 0 0 15px rgba(255, 107, 129, 0.5);
}

.physics-grid input[type="range"]:hover::-moz-range-thumb {
    background: var(--accent-secondary);
    box-shadow: 0 0 15px rgba(255, 107, 129, 0.5);
}

.value-display {
    display: inline-block;
    min-width: 60px;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 255, 157, 0.1);
    border: 1px solid rgba(0, 255, 157, 0.3);
    border-radius: 6px;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.9rem;
    text-align: center;
    font-family: 'Orbitron', monospace;
}

.physics-grid select {
    width: 100%;
    padding: 0.75rem;
    background: rgba(30, 30, 45, 0.8);
    border: 2px solid rgba(0, 255, 157, 0.2);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
}

.physics-grid select:hover {
    border-color: var(--accent-primary);
}

.physics-grid select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px rgba(0, 255, 157, 0.2);
}

.physics-footer {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid rgba(0, 255, 157, 0.2);
}

.physics-footer .btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    min-width: 150px;
}

/* Custom scrollbar for physics panel */
.physics-panel::-webkit-scrollbar {
    width: 8px;
}

.physics-panel::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

.physics-panel::-webkit-scrollbar-thumb {
    background: rgba(0, 255, 157, 0.3);
    border-radius: 4px;
}

.physics-panel::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 255, 157, 0.5);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .physics-panel {
        max-width: 95vw;
        max-height: 95vh;
    }

    .preset-buttons {
        grid-template-columns: 1fr;
    }

    .physics-grid {
        grid-template-columns: 1fr;
    }

    .physics-footer {
        flex-direction: column;
    }

    .physics-footer .btn {
        width: 100%;
    }
}