@container (max-width: 768px) {
    .controls-grid {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .container {
        gap: var(--spacing-xl);
    }
    
    header {
        padding: var(--spacing-md) 0;
        position: relative;
    }
    
    .header-controls {
        display: none;
    }
    
    .mobile-footer {
        display: block;
    }
    
    body {
        padding-bottom: 80px;
    }
    
    h1 {
        font-size: clamp(1.8rem, 6vw, 2.2rem);
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .upload-section {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .drop-zone {
        padding: 2.5rem 1.5rem;
        max-width: 500px;
        width: 100%;
    }
    
    .drop-icon {
        font-size: 3rem;
    }
    
    .drop-text {
        font-size: 1.2rem;
    }
    
    .drop-subtext {
        font-size: 1rem;
    }
    
    .controls-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .button-group {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .export-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }
    
    .modal-header {
        padding: var(--spacing-md);
    }
    
    .modal-body {
        padding: var(--spacing-md);
    }
    
    .remove-audio {
        opacity: 1;
        top: 10px;
        right: 10px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.2rem;
        --spacing-sm: 0.4rem;
        --spacing-md: 0.8rem;
        --spacing-lg: 1.2rem;
        --spacing-xl: 1.6rem;
        --spacing-xxl: 2rem;
    }
    
    body {
        padding: var(--spacing-md) var(--spacing-xs);
    }
    
    .container {
        gap: var(--spacing-lg);
    }
    
    header {
        text-align: center;
    }
    
    .header-controls {
        display: none;
    }
    
    .mobile-footer {
        display: block;
    }
    
    body {
        padding-bottom: 80px;
    }
    
    h1 {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .subtitle {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .upload-section {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        min-height: 40vh;
    }
    
    .drop-zone {
        padding: 2rem 1rem;
        max-width: 400px;
        width: 100%;
    }
    
    .drop-icon {
        font-size: 2.5rem;
        margin-bottom: var(--spacing-md);
    }
    
    .drop-text {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .drop-subtext {
        font-size: 0.9rem;
    }
    
    .controls-section {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .section-title {
        font-size: 1.3rem;
        margin-bottom: var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .section-title::after {
        display: none;
    }
    
    .control-label {
        font-size: 0.9rem;
    }
    
    .control-input,
    .control-color {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.8rem 1.2rem;
        font-size: 1rem;
    }
    
    .value-display {
        padding: 0.2rem 0.5rem;
        font-size: 0.8rem;
        min-width: 50px;
    }
    
    .canvas-container {
        border-radius: var(--border-radius-medium);
    }
    
    #canvas {
        border-radius: var(--border-radius-medium);
    }
    
    .remove-audio {
        top: 8px;
        right: 8px;
        width: 28px;
        height: 28px;
        font-size: 16px;
    }
    
    .export-progress {
        bottom: 10px;
        left: 10px;
        right: 10px;
        padding: var(--spacing-sm);
    }
    
    .progress-text {
        font-size: 0.8rem;
    }
    
    .status {
        padding: var(--spacing-sm);
        font-size: 0.85rem;
    }
    
    .modal-content {
        width: 96%;
        max-height: 80vh;
        margin: var(--spacing-sm);
    }
    
    .modal-header {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .modal-header h3 {
        font-size: 1.1rem;
    }
    
    .modal-body {
        padding: var(--spacing-sm);
    }
    
    .preset-actions {
        flex-direction: column;
    }
    
    .preset-actions input {
        margin-bottom: var(--spacing-sm);
    }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .hint {
        font-size: 0.8rem;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
    
    .controls-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
    
    h1 {
        font-size: 3.2rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
        max-width: 700px;
    }
    
    .drop-zone {
        padding: 4rem 2.5rem;
    }
    
    .controls-section {
        padding: 2.5rem;
    }
}

@media (min-width: 1600px) {
    .container {
        max-width: 1600px;
    }
    
    .controls-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .canvas-container {
        max-width: 1200px;
    }
}

@media (-webkit-min-device-pixel-ratio: 2),
       (min-resolution: 192dpi),
       (min-resolution: 2dppx) {
    
    .btn {
        text-shadow: 0 0.5px 1px rgba(0, 0, 0, 0.2);
    }
    
    .drop-icon,
    .theme-icon {
        transform: scale(0.9);
    }
    
    .value-display {
        font-weight: 500;
    }
}

@media (max-width: 768px) and (orientation: landscape) {
    .container {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .upload-section,
    .controls-section {
        flex: 1;
        min-width: 300px;
    }
    
    .drop-zone {
        padding: 1.5rem 1rem;
    }
    
    .drop-text {
        font-size: 1rem;
    }
    
    .drop-subtext {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    [data-theme="dark"] {
        --shadow-card: 0 8px 25px rgba(0, 0, 0, 0.6);
        --shadow-elevated: 0 12px 30px rgba(0, 0, 0, 0.7);
    }
}

@media (max-width: 480px) {
    [data-theme="light"] {
        --shadow-card: 0 8px 25px rgba(0, 0, 0, 0.15);
        --shadow-elevated: 0 12px 30px rgba(0, 0, 0, 0.2);
    }
}

@media (hover: hover) and (pointer: fine) {
    .btn:hover {
        transform: translateY(-3px);
    }
    
    .control-range::-webkit-slider-thumb:hover {
        transform: scale(1.3);
    }
    
    .preset-item:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card);
    }
}

@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 48px;
    }
    
    .control-input,
    .control-color {
        min-height: 48px;
    }
    
    .control-range {
        height: 12px;
    }
    
    .control-range::-webkit-slider-thumb {
        width: 24px;
        height: 24px;
    }
    
    .theme-toggle {
        min-width: 48px;
        min-height: 48px;
    }
    
    .remove-audio {
        min-width: 44px;
        min-height: 44px;
    }
    
    .modal-close {
        min-width: 44px;
        min-height: 44px;
    }
}

@media print {
    body {
        background: white;
        color: black;
        padding: 1rem;
    }
    
    .theme-toggle,
    .remove-audio,
    .btn,
    .export-progress,
    .modal {
        display: none !important;
    }
    
    .canvas-container {
        box-shadow: none;
        border: 2px solid #ccc;
    }
    
    .controls-section {
        break-inside: avoid;
    }
    
    .section-title::after {
        background: #ccc;
    }
}

@media (prefers-reduced-data: reduce) {
    .drop-zone::before,
    .btn::after {
        display: none;
    }
    
    .pulse,
    .float,
    .glow {
        animation: none;
    }
    
    .export-progress .progress-fill {
        animation: none;
    }
}

.btn:focus-visible,
.control-input:focus-visible,
.control-range:focus-visible,
.control-color:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

@supports (container-type: inline-size) {
    .controls-section {
        container-type: inline-size;
    }
    
    @container (max-width: 600px) {
        .export-grid {
            grid-template-columns: 1fr;
        }
    }
    
    @container (max-width: 400px) {
        .button-group {
            grid-template-columns: 1fr;
        }
    }
}