/* ============================================
   RESPONSIVE DESIGN STYLES
   ============================================ */

/* Large Desktop */
@media (max-width: 1400px) {
    .content-grid {
        grid-template-columns: 220px 1fr 380px;
        gap: var(--spacing-lg);
    }
}

/* Desktop */
@media (max-width: 1200px) {
    .content-grid {
        grid-template-columns: 200px 1fr 360px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Tablet Landscape */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr 360px;
    }
    
    .sidebar {
        display: none;
    }
    
    .mobile-nav-toggle {
        display: block;
    }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .preview-section {
        order: -1;
        margin-bottom: var(--spacing-lg);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .logo-section h1 {
        font-size: var(--font-size-xl);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .preview-sticky {
        position: static;
    }
    
    .code-preview pre {
        max-height: 300px;
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .app-header {
        padding: var(--spacing-md) 0;
    }
    
    .logo-section {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .logo-section h1 {
        font-size: var(--font-size-lg);
    }
    
    .header-nav {
        width: 100%;
        justify-content: space-between;
    }
    
    .btn-icon {
        width: 36px;
        height: 36px;
    }
    
    .form-section,
    .preview-section {
        padding: var(--spacing-md);
    }
    
    .category-header h2 {
        font-size: var(--font-size-xl);
    }
    
    .modal {
        width: 95%;
    }
    
    .toast-container {
        right: var(--spacing-sm);
        left: var(--spacing-sm);
    }
    
    .toast {
        min-width: auto;
    }
}

/* Print Styles */
@media print {
    .app-header,
    .sidebar,
    .preview-section,
    .app-footer,
    .btn,
    .modal-backdrop,
    .toast-container {
        display: none !important;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .form-section {
        box-shadow: none;
        padding: 0;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
    }
    
    [data-theme="dark"] {
        --border-color: #ffffff;
    }
    
    .form-input,
    .form-textarea,
    .form-select {
        border-width: 2px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark Mode Preference */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-tertiary: #334155;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-muted: #94a3b8;
        --border-color: #334155;
        --shadow-color: rgba(0, 0, 0, 0.3);
    }
}