/* Responsive Design - Mobile First Approach */

/* Large Desktop (1400px and up) */
@media (min-width: 1400px) {
    .main-content {
        max-width: 1600px;
    }
    
    .editor-layout {
        grid-template-columns: 1.2fr 1fr;
    }
    
    .templates-container {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

/* Desktop (1200px to 1399px) */
@media (max-width: 1399px) {
    .main-content {
        max-width: 1200px;
    }
}

/* Large Tablet (992px to 1199px) */
@media (max-width: 1199px) {
    .header-content {
        padding: 0 var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .editor-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        height: auto;
        gap: var(--spacing-md);
    }
    
    .form-panel {
        order: 1;
    }
    
    .preview-panel {
        order: 2;
        min-height: 600px;
    }
    
    .templates-container {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .customization-options {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

/* Tablet (768px to 991px) */
@media (max-width: 991px) {
    .header-content {
        flex-direction: column;
        height: auto;
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .logo-section {
        margin-bottom: var(--spacing-sm);
    }
    
    .header-nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-btn {
        flex: 1;
        min-width: 120px;
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .panel-header {
        padding: var(--spacing-md);
    }
    
    .panel-header h2 {
        font-size: 1.1rem;
    }
    
    .panel-actions {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.8rem;
    }
    
    .templates-container {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .template-actions,
    .data-actions {
        flex-direction: column;
    }
    
    .saved-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .saved-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* Large Mobile (576px to 767px) */
@media (max-width: 767px) {
    .app-header {
        position: relative;
    }
    
    .header-content {
        padding: var(--spacing-sm);
    }
    
    .logo-section h1 {
        font-size: 1.2rem;
    }
    
    .logo-section i {
        font-size: 1.5rem;
    }
    
    .header-nav {
        gap: var(--spacing-xs);
    }
    
    .nav-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
        min-width: 80px;
    }
    
    .nav-btn i {
        display: none;
    }
    
    .main-content {
        padding: var(--spacing-sm);
    }
    
    .editor-layout {
        gap: var(--spacing-sm);
    }
    
    .form-content,
    .preview-content {
        padding: var(--spacing-md);
    }
    
    .form-group {
        margin-bottom: var(--spacing-lg);
    }
    
    .form-group h3 {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }
    
    .form-field input,
    .form-field textarea,
    .form-field select {
        padding: var(--spacing-sm);
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .btn {
        width: 100%;
        justify-content: center;
        margin-bottom: var(--spacing-xs);
    }
    
    .panel-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .panel-actions .btn {
        margin-bottom: 0;
    }
    
    .templates-container {
        grid-template-columns: 1fr;
    }
    
    .template-card {
        margin-bottom: var(--spacing-md);
    }
    
    .settings-panel {
        padding: var(--spacing-sm);
    }
    
    .settings-group {
        padding: var(--spacing-md);
    }
    
    .customization-options {
        grid-template-columns: 1fr;
    }
    
    .modal {
        width: 95vw;
        margin: var(--spacing-sm);
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--spacing-md);
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        margin-bottom: var(--spacing-xs);
    }
    
    .modal-footer .btn:last-child {
        margin-bottom: 0;
    }
}

/* Small Mobile (up to 575px) */
@media (max-width: 575px) {
    :root {
        --spacing-xs: 0.2rem;
        --spacing-sm: 0.4rem;
        --spacing-md: 0.8rem;
        --spacing-lg: 1.2rem;
        --spacing-xl: 1.6rem;
        --spacing-xxl: 2.4rem;
    }
    
    .header-content {
        padding: var(--spacing-xs);
    }
    
    .logo-section {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xs);
    }
    
    .logo-section h1 {
        font-size: 1rem;
    }
    
    .header-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs);
        width: 100%;
    }
    
    .nav-btn {
        padding: var(--spacing-xs);
        font-size: 0.7rem;
        min-width: auto;
    }
    
    .main-content {
        padding: var(--spacing-xs);
    }
    
    .form-content,
    .preview-content {
        padding: var(--spacing-sm);
    }
    
    .form-group h3 {
        font-size: 0.9rem;
    }
    
    .form-field label {
        font-size: 0.8rem;
    }
    
    .form-field input,
    .form-field textarea,
    .form-field select {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: var(--spacing-xs);
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
    }
    
    .panel-header h2 {
        font-size: 1rem;
    }
    
    .templates-grid h2,
    .saved-documents h2,
    .settings-panel h2 {
        font-size: 1.2rem;
    }
    
    .settings-group h3 {
        font-size: 1rem;
    }
    
    .template-info h3 {
        font-size: 1rem;
    }
    
    .template-info p {
        font-size: 0.8rem;
    }
    
    .saved-info h3 {
        font-size: 0.9rem;
    }
    
    .saved-info p {
        font-size: 0.8rem;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .nav-btn,
    .template-card,
    .saved-item {
        min-height: 44px; /* Minimum touch target size */
    }
    
    .form-field input,
    .form-field textarea,
    .form-field select {
        min-height: 44px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .modal-close {
        min-width: 44px;
        min-height: 44px;
    }
    
    /* Remove hover effects on touch devices */
    .btn:hover,
    .nav-btn:hover,
    .template-card:hover,
    .saved-item:hover {
        transform: none;
        box-shadow: var(--shadow-md);
    }
    
    /* Add active states for better touch feedback */
    .btn:active {
        transform: scale(0.98);
    }
    
    .nav-btn:active {
        background: var(--primary-color);
        color: white;
    }
    
    .template-card:active {
        transform: scale(0.98);
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .company-logo,
    .template-preview {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Landscape Orientation on Mobile */
@media (max-width: 767px) and (orientation: landscape) {
    .editor-layout {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: none;
        height: calc(100vh - 120px);
    }
    
    .form-panel,
    .preview-panel {
        min-height: auto;
    }
    
    .header-content {
        flex-direction: row;
        height: 60px;
    }
    
    .logo-section {
        flex-direction: row;
        margin-bottom: 0;
    }
    
    .header-nav {
        width: auto;
        flex-wrap: nowrap;
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .loading-spinner {
        animation: none;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #1a1a1a;
        --text-color: #ffffff;
        --accent-color: #2a2a2a;
        --border-color: #404040;
        --shadow-color: rgba(0, 0, 0, 0.3);
    }
    
    body {
        background-color: var(--background-color);
        color: var(--text-color);
    }
    
    .app-header,
    .form-panel,
    .preview-panel,
    .settings-group,
    .template-card,
    .saved-item {
        background: #2a2a2a;
        border-color: var(--border-color);
    }
    
    .form-field input,
    .form-field textarea,
    .form-field select {
        background: #1a1a1a;
        border-color: var(--border-color);
        color: var(--text-color);
    }
    
    .modal {
        background: #2a2a2a;
    }
}

/* Print Styles for Mobile */
@media print {
    .app-header,
    .panel-header,
    .panel-actions,
    .nav-btn,
    .btn {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
        max-width: none;
    }
    
    .editor-layout {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .form-panel {
        display: none !important;
    }
    
    .preview-panel {
        box-shadow: none;
        border-radius: 0;
    }
    
    .preview-content {
        padding: 0;
        background: white;
    }
    
    .document-preview {
        box-shadow: none;
        transform: none !important;
    }
}

/* Accessibility Improvements */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow-color: rgba(0, 0, 0, 0.5);
    }
    
    .btn {
        border: 2px solid currentColor;
    }
    
    .form-field input,
    .form-field textarea,
    .form-field select {
        border: 2px solid var(--border-color);
    }
    
    .form-field input:focus,
    .form-field textarea:focus,
    .form-field select:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px var(--primary-color);
    }
}