/* ============================================
   NMLFILE - Main Stylesheet
   تصميم عصري داكن مع لمسات بنفسجية
   ============================================ */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Colors */
    --primary: #8B5CF6;
    --primary-dark: #7C3AED;
    --primary-light: #A78BFA;
    --primary-glow: rgba(139, 92, 246, 0.3);
    --secondary: #1F2937;
    --secondary-light: #374151;
    --background: #0F172A;
    --surface: #1E293B;
    --surface-light: #334155;
    --text: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border: #334155;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px var(--primary-glow);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-dark);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ============================================
   Loading Screen
   ============================================ */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition), visibility var(--transition);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--surface-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-light);
    letter-spacing: 2px;
}

/* ============================================
   Navigation Bar
   ============================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    transition: all var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-light);
    transition: color var(--transition);
    white-space: nowrap;
}

.nav-logo:hover {
    color: var(--primary);
}

.nav-logo i {
    font-size: 1.6rem;
}

/* Search */
.nav-search {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    right: 16px;
    color: var(--text-muted);
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: 10px 40px 10px 16px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text);
    font-size: 0.95rem;
    transition: all var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-clear {
    position: absolute;
    left: 8px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 50%;
    transition: all var(--transition);
}

.search-clear:hover {
    color: var(--text);
    background: var(--surface-light);
}

/* Search Results Dropdown */
.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    max-height: 400px;
    overflow-y: auto;
    z-index: 100;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--border);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: var(--surface-light);
}

.search-result-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-glow);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    flex-shrink: 0;
}

.search-result-info {
    flex: 1;
    min-width: 0;
}

.search-result-name {
    font-weight: 600;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 8px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: var(--primary-glow);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-icon:hover {
    background: var(--surface-light);
    border-color: var(--primary);
    color: var(--primary-light);
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
}

.btn-download {
    background: linear-gradient(135deg, #10B981, #059669);
    color: white;
    font-size: 1.1rem;
    padding: 16px 32px;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    animation: pulse 2s infinite;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    animation: none;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    }
    50% {
        box-shadow: 0 4px 25px rgba(16, 185, 129, 0.6);
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    padding: 80px 24px;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(135deg, 
        rgba(139, 92, 246, 0.1) 0%, 
        rgba(15, 23, 42, 0) 50%,
        rgba(139, 92, 246, 0.05) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.hero-icon {
    font-size: 4rem;
    color: var(--primary-light);
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-light), #C084FC);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.hero-subtitle {
    display: block;
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-secondary);
    -webkit-text-fill-color: var(--text-secondary);
    margin-top: 8px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: 24px 0;
    line-height: 1.8;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-light);
    animation: countUp 2s ease-out;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Hero Shapes */
.hero-shapes .shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(40px);
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--primary);
    top: -100px;
    left: -100px;
    animation: shapeMove 8s ease-in-out infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--primary);
    bottom: -50px;
    right: -50px;
    animation: shapeMove 6s ease-in-out infinite reverse;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: #C084FC;
    top: 50%;
    left: 50%;
    animation: shapeMove 10s ease-in-out infinite;
}

@keyframes shapeMove {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(20px, -20px) scale(1.1); }
    50% { transform: translate(-10px, -30px) scale(0.9); }
    75% { transform: translate(-20px, 10px) scale(1.05); }
}

/* ============================================
   Main Content Sections
   ============================================ */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

.section {
    margin-bottom: 60px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: var(--primary-light);
}

.section-link {
    color: var(--primary-light);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition);
}

.section-link:hover {
    color: var(--primary);
}

/* ============================================
   Categories Grid
   ============================================ */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.category-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 12px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    color: var(--text);
}

.category-card:hover {
    border-color: var(--primary);
    background: var(--surface-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.category-card i {
    font-size: 2rem;
    color: var(--primary-light);
    margin-bottom: 10px;
    display: block;
}

.category-card span {
    font-size: 0.9rem;
    font-weight: 600;
}

/* ============================================
   Files Grid
   ============================================ */
.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.file-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    color: var(--text);
    position: relative;
    overflow: hidden;
}

.file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), #C084FC);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.file-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.file-card:hover::before {
    transform: scaleX(1);
}

.file-card-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}

.file-card-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-glow);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-light);
    flex-shrink: 0;
}

.file-card-info {
    flex: 1;
    min-width: 0;
}

.file-card-name {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-card-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.file-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.file-card-stats {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-card-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.file-card-category {
    background: var(--surface-light);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-light);
}

/* ============================================
   File Page Styles
   ============================================ */
.file-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px;
}

/* File Not Found */
.file-not-found {
    text-align: center;
    padding: 80px 24px;
}

.not-found-icon {
    font-size: 5rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.file-not-found h1 {
    font-size: 2rem;
    margin-bottom: 12px;
}

.file-not-found p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* File Header */
.file-header {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
    padding: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.file-icon-large {
    width: 80px;
    height: 80px;
    background: var(--primary-glow);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--primary-light);
    flex-shrink: 0;
}

.file-header-info {
    flex: 1;
}

.file-title {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.file-description {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.file-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-category {
    background: var(--primary-glow);
    color: var(--primary-light);
}

.badge-type {
    background: var(--surface-light);
    color: var(--text-secondary);
}

.badge-minecraft {
    background: rgba(16, 185, 129, 0.2);
    color: #34D399;
}

/* File Info Grid */
.file-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.info-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
}

.info-card i {
    font-size: 1.3rem;
    color: var(--primary-light);
    margin-bottom: 8px;
    display: block;
}

.info-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.info-value {
    font-size: 1rem;
    font-weight: 600;
}

/* Minecraft Info */
.minecraft-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

/* Download Section */
.download-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 60px;
}

.download-card,
.share-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.download-card h3,
.share-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.download-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.download-info {
    margin-top: 20px;
}

.download-link-container {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.download-link-container .form-input {
    flex: 1;
    padding: 10px 16px;
    background: var(--secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.9rem;
    direction: ltr;
}

.download-expiry {
    font-size: 0.85rem;
    color: var(--warning);
    text-align: center;
}

.download-error {
    margin-top: 16px;
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius);
    color: #FCA5A5;
    font-size: 0.9rem;
}

/* Progress Bar */
.download-progress {
    margin-top: 16px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--surface-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), #C084FC);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
    width: 0%;
}

/* Share Section */
.share-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.share-btn {
    font-size: 1.2rem;
}

/* Similar Files */
.similar-files {
    margin-top: 60px;
}

.similar-files h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 40px 24px 20px;
    margin-top: 80px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
}

.footer-brand h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-light);
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links h4 {
    margin-bottom: 12px;
}

.footer-links ul li {
    margin-bottom: 8px;
}

.footer-links ul li a {
    color: var(--text-muted);
    transition: color var(--transition);
}

.footer-links ul li a:hover {
    color: var(--primary-light);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    left: 32px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .download-section {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand h3 {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }
    
    .nav-search {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .btn-text {
        display: none;
    }
    
    .hero {
        padding: 60px 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .file-header {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .file-title {
        font-size: 1.5rem;
    }
    
    .file-badges {
        justify-content: center;
    }
    
    .files-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .file-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .files-grid {
        grid-template-columns: 1fr;
    }
    
    .file-info-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in {
    animation: fadeIn 0.4s ease forwards;
}

/* Stagger animation for grids */
.files-grid .file-card:nth-child(1) { animation-delay: 0.1s; }
.files-grid .file-card:nth-child(2) { animation-delay: 0.2s; }
.files-grid .file-card:nth-child(3) { animation-delay: 0.3s; }
.files-grid .file-card:nth-child(4) { animation-delay: 0.4s; }
.files-grid .file-card:nth-child(5) { animation-delay: 0.5s; }
.files-grid .file-card:nth-child(6) { animation-delay: 0.6s; }

/* Utility Classes */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.hidden { display: none !important; }