/* Universal Styles for SF-Dashboard */

/* CSS Variables for consistent theming */
:root {
    /* Color Palette */
    --primary-color: #2c3e50;
    --primary-light: #34495e;
    --secondary-color: #3498db;
    --secondary-dark: #2980b9;
    --success-color: #27ae60;
    --success-dark: #219150;
    --warning-color: #f39c12;
    --warning-dark: #e67e22;
    --danger-color: #e74c3c;
    --danger-dark: #c0392b;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    /* Background Colors */
    --bg-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-secondary: rgba(243, 246, 250, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.95);
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-overlay: rgba(0, 0, 0, 0.8);
    
    /* Text Colors */
    --text-primary: #2c3e50;
    --text-secondary: #666;
    --text-muted: #888;
    --text-light: #fff;
    
    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 25px;
    --spacing-xxl: 30px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 15px;
    --radius-xxl: 20px;
    --radius-round: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 247, 255, 0.8);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Fonts */
    --font-primary: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
    --font-secondary: 'Open Sans', Arial, sans-serif;
    
    /* Z-index layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout Components */
.sf-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: var(--bg-primary);
}

/* Enhanced Side Panel */
.sf-sidebar {
    width: 280px;
    background: rgba(44, 62, 80, 0.95);
    backdrop-filter: blur(20px);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-xl);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: var(--z-sticky);
}

.sf-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(52, 152, 219, 0.1) 0%, rgba(155, 89, 182, 0.1) 100%);
    pointer-events: none;
}

.sf-sidebar-header {
    margin: 0 0 var(--spacing-xxl) 0;
    font-size: 26px;
    font-weight: 800;
    background: linear-gradient(45deg, var(--secondary-color), var(--danger-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
}

.sf-nav-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    margin: 8px 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.sf-nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
    z-index: -1;
}

.sf-nav-link:hover::before {
    left: 100%;
}

.sf-nav-link:hover,
.sf-nav-link.active {
    background: rgba(52, 152, 219, 0.2);
    border-color: rgba(52, 152, 219, 0.3);
    transform: translateX(5px);
}

/* Main Container */
.sf-main {
    flex: 1;
    position: relative;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xxl) 0 0 var(--radius-xxl);
    margin: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.sf-container {
    padding: var(--spacing-xxl);
    max-width: 1400px;
    margin: 0 auto;
}

/* Typography */
.sf-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.sf-subtitle {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.sf-heading {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

/* Enhanced Cards */
.sf-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-xxl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.sf-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(52, 152, 219, 0.05), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.sf-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.sf-card:hover::before {
    opacity: 1;
}

.sf-card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xxl) var(--radius-xxl) 0 0;
    margin: calc(-1 * var(--spacing-xl)) calc(-1 * var(--spacing-xl)) var(--spacing-xl) calc(-1 * var(--spacing-xl));
    text-align: center;
}

.sf-card-title {
    margin: 0;
    font-size: 28px;
    font-weight: 800;
}

/* Grid System */
.sf-grid {
    display: grid;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xxl);
}

.sf-grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.sf-grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.sf-grid-4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

.sf-grid-item {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-xxl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: var(--transition-slow);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

.sf-grid-item:nth-child(2) { animation-delay: 0.1s; }
.sf-grid-item:nth-child(3) { animation-delay: 0.2s; }
.sf-grid-item:nth-child(4) { animation-delay: 0.3s; }
.sf-grid-item:nth-child(5) { animation-delay: 0.4s; }
.sf-grid-item:nth-child(6) { animation-delay: 0.5s; }

.sf-grid-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(52, 152, 219, 0.05), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.sf-grid-item:hover::before {
    opacity: 1;
}

.sf-grid-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Forms */
.sf-form {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.sf-form-section {
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.sf-form-section-title {
    margin: 0 0 var(--spacing-lg) 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: var(--spacing-sm);
}

.sf-form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.sf-form-group {
    margin-bottom: var(--spacing-lg);
}

.sf-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.sf-input,
.sf-textarea,
.sf-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
}

.sf-input:focus,
.sf-textarea:focus,
.sf-select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.sf-textarea {
    resize: vertical;
    min-height: 100px;
}

/* Enhanced Buttons */
.sf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px var(--spacing-xxl);
    border: none;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-slow);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.sf-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.sf-btn:hover::before {
    width: 300px;
    height: 300px;
}

.sf-btn:hover {
    transform: translateY(-2px);
}

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

.sf-btn-primary {
    background: linear-gradient(45deg, var(--secondary-color), var(--secondary-dark));
    color: var(--text-light);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
}

.sf-btn-primary:hover {
    box-shadow: 0 12px 35px rgba(52, 152, 219, 0.4);
}

.sf-btn-success {
    background: linear-gradient(45deg, var(--success-color), var(--success-dark));
    color: var(--text-light);
    box-shadow: 0 8px 25px rgba(39, 174, 96, 0.3);
}

.sf-btn-success:hover {
    box-shadow: 0 12px 35px rgba(39, 174, 96, 0.4);
}

.sf-btn-warning {
    background: linear-gradient(45deg, var(--warning-color), var(--warning-dark));
    color: var(--text-light);
    box-shadow: 0 8px 25px rgba(243, 156, 18, 0.3);
}

.sf-btn-warning:hover {
    box-shadow: 0 12px 35px rgba(243, 156, 18, 0.4);
}

.sf-btn-danger {
    background: linear-gradient(45deg, var(--danger-color), var(--danger-dark));
    color: var(--text-light);
    box-shadow: 0 8px 25px rgba(231, 76, 60, 0.3);
}

.sf-btn-danger:hover {
    box-shadow: 0 12px 35px rgba(231, 76, 60, 0.4);
}

.sf-btn-secondary {
    background: linear-gradient(45deg, #95a5a6, #7f8c8d);
    color: var(--text-light);
    box-shadow: 0 8px 25px rgba(149, 165, 166, 0.3);
}

.sf-btn-secondary:hover {
    box-shadow: 0 12px 35px rgba(149, 165, 166, 0.4);
}

.sf-btn-sm {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: var(--radius-lg);
}

.sf-btn-lg {
    padding: 16px 32px;
    font-size: 18px;
    border-radius: var(--spacing-xxl);
}

/* Floating Action Button */
.sf-fab {
    position: fixed;
    bottom: var(--spacing-xxl);
    right: var(--spacing-xxl);
    background: linear-gradient(45deg, var(--success-color), var(--success-dark));
    color: var(--text-light);
    width: 70px;
    height: 70px;
    border-radius: var(--radius-round);
    font-size: 30px;
    border: none;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(39, 174, 96, 0.4);
    transition: var(--transition-slow);
    z-index: var(--z-fixed);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sf-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 35px rgba(39, 174, 96, 0.6);
}

/* Enhanced Modal */
.sf-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.sf-modal.active {
    display: flex;
}

.sf-modal-content {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xxl);
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideInUp 0.4s ease;
}

.sf-modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xxl) var(--radius-xxl) 0 0;
    text-align: center;
}

.sf-modal-title {
    margin: 0;
    font-size: 28px;
    font-weight: 800;
}

.sf-modal-body {
    padding: var(--spacing-xxl);
}

.sf-modal-footer {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xxl);
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Toggle Switch */
.sf-switch-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: var(--spacing-md) 0;
}

.sf-switch {
    position: relative;
    width: 60px;
    height: 30px;
}

.sf-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.sf-switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ccc;
    transition: 0.4s;
    border-radius: 30px;
}

.sf-switch-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background: var(--text-light);
    transition: 0.4s;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.sf-switch input:checked + .sf-switch-slider {
    background: var(--success-color);
}

.sf-switch input:checked + .sf-switch-slider:before {
    transform: translateX(30px);
}

/* Badges */
.sf-badge {
    display: inline-block;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-light);
    border-radius: var(--radius-xxl);
    margin: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sf-badge-text { background: linear-gradient(45deg, var(--secondary-color), var(--secondary-dark)); }
.sf-badge-image { background: linear-gradient(45deg, var(--danger-color), var(--danger-dark)); }
.sf-badge-video { background: linear-gradient(45deg, #9b59b6, #8e44ad); }
.sf-badge-promo { background: linear-gradient(45deg, var(--warning-color), var(--warning-dark)); }

/* Upload Area */
.sf-upload-area {
    background: rgba(255, 255, 255, 0.8);
    border: 2px dashed var(--secondary-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxl);
    margin: var(--spacing-lg) 0;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
}

.sf-upload-area:hover {
    border-color: var(--secondary-dark);
    background: rgba(52, 152, 219, 0.05);
}

.sf-upload-icon {
    font-size: 48px;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

/* Media Gallery */
.sf-media-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.sf-media-item {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    aspect-ratio: 1;
    background: var(--light-color);
}

.sf-media-item img,
.sf-media-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sf-media-remove {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    background: rgba(231, 76, 60, 0.9);
    color: var(--text-light);
    border: none;
    border-radius: var(--radius-round);
    width: 25px;
    height: 25px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Enhanced Loader */
.sf-loader {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
}

.sf-loader.active {
    display: flex;
}

.sf-spinner {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 4px solid rgba(52, 152, 219, 0.2);
    border-top: 4px solid #00f7ff;
    box-shadow: var(--shadow-glow);
    animation: spin 1s linear infinite;
    position: relative;
}

.sf-spinner::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 10px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid rgba(0, 247, 255, 0.3);
    border-bottom: 3px solid #00f7ff;
    animation: spin-reverse 1.5s linear infinite;
}

.sf-spinner::after {
    content: "";
    position: absolute;
    top: 20px;
    left: 20px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle, #00f7ff, rgba(0, 247, 255, 0.2));
    box-shadow: 0 0 15px #00f7ff;
}

/* File Gallery */
.sf-file-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xxl);
    justify-content: center;
    width: 80%;
    max-width: 1200px;
    margin-top: var(--spacing-xxl);
}

.sf-file-item {
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    background: var(--text-light);
    box-shadow: var(--shadow-md);
    text-align: center;
    width: calc(25% - 20px);
    max-width: 220px;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.sf-file-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.sf-file-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--secondary-color);
}

.sf-file-icon img {
    max-width: 100%;
    max-height: 150px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    border: 2px solid #ccc;
    padding: var(--spacing-xs);
    background: #f9f9f9;
}

.sf-file-name {
    font-size: 14px;
    color: var(--text-primary);
    margin: var(--spacing-sm) 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sf-file-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.sf-file-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.sf-file-btn-download {
    background: var(--success-color);
    color: var(--text-light);
}

.sf-file-btn-download:hover {
    background: var(--success-dark);
}

.sf-file-btn-copy {
    background: var(--secondary-color);
    color: var(--text-light);
}

.sf-file-btn-copy:hover {
    background: var(--secondary-dark);
}

.sf-file-btn-delete {
    background: var(--danger-color);
    color: var(--text-light);
}

.sf-file-btn-delete:hover {
    background: var(--danger-dark);
}

/* Tab System */
.sf-tabs {
    display: flex;
    cursor: pointer;
    background: #ecf0f1;
    border: 1px solid #ccc;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.sf-tab-link {
    padding: 12px;
    flex: 1;
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.sf-tab-link:not(.active):hover {
    background: #dcdfe2;
}

.sf-tab-link.active {
    background: var(--text-light);
    color: var(--secondary-color);
    border-bottom: 2px solid var(--secondary-color);
}

.sf-tab-content {
    display: none;
    padding: var(--spacing-sm) var(--spacing-xs) 0;
    border: 1px solid #ccc;
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    background: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.sf-tab-content.active {
    display: block;
}

/* Category Tags */
.sf-categories-input {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    min-height: 50px;
}

.sf-category-tag {
    background: linear-gradient(45deg, var(--secondary-color), var(--secondary-dark));
    color: var(--text-light);
    padding: 6px 12px;
    border-radius: var(--radius-xxl);
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sf-category-remove {
    cursor: pointer;
    font-weight: bold;
}

.sf-category-input {
    border: none;
    outline: none;
    background: transparent;
    flex: 1;
    min-width: 150px;
    font-size: 14px;
}

/* Tables */
.sf-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-sm);
    background: var(--text-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.sf-table th,
.sf-table td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

.sf-table th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--text-primary);
}

.sf-table tr:nth-child(even) {
    background: #f9f9f9;
}

.sf-table tr:hover {
    background: rgba(52, 152, 219, 0.1);
}

/* Statistics Display */
.sf-stats {
    position: absolute;
    top: var(--spacing-xxl);
    right: var(--spacing-xxl);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.sf-stats p {
    margin: var(--spacing-xs) 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Utilities */
.sf-dull {
    opacity: 0.3;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.sf-hidden {
    display: none !important;
}

.sf-visible {
    display: block !important;
}

.sf-text-center {
    text-align: center;
}

.sf-text-left {
    text-align: left;
}

.sf-text-right {
    text-align: right;
}

.sf-mt-0 { margin-top: 0; }
.sf-mt-1 { margin-top: var(--spacing-xs); }
.sf-mt-2 { margin-top: var(--spacing-sm); }
.sf-mt-3 { margin-top: var(--spacing-md); }
.sf-mt-4 { margin-top: var(--spacing-lg); }
.sf-mt-5 { margin-top: var(--spacing-xl); }

.sf-mb-0 { margin-bottom: 0; }
.sf-mb-1 { margin-bottom: var(--spacing-xs); }
.sf-mb-2 { margin-bottom: var(--spacing-sm); }
.sf-mb-3 { margin-bottom: var(--spacing-md); }
.sf-mb-4 { margin-bottom: var(--spacing-lg); }
.sf-mb-5 { margin-bottom: var(--spacing-xl); }

.sf-p-0 { padding: 0; }
.sf-p-1 { padding: var(--spacing-xs); }
.sf-p-2 { padding: var(--spacing-sm); }
.sf-p-3 { padding: var(--spacing-md); }
.sf-p-4 { padding: var(--spacing-lg); }
.sf-p-5 { padding: var(--spacing-xl); }

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

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes spin-reverse {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(-360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .sf-layout {
        flex-direction: column;
    }
    
    .sf-sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .sf-main {
        margin: 0;
        border-radius: 0;
    }
    
    .sf-stats {
        position: relative;
        margin-bottom: var(--spacing-lg);
    }
    
    .sf-grid-2,
    .sf-grid-3,
    .sf-grid-4 {
        grid-template-columns: 1fr;
    }
    
    .sf-file-gallery {
        width: 100%;
    }
    
    .sf-file-item {
        width: calc(50% - 10px);
    }
    
    .sf-fab {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
    }
    
    .sf-modal-content {
        width: 95%;
        margin: var(--spacing-sm);
    }
    
    .sf-form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .sf-container {
        padding: var(--spacing-lg);
    }
    
    .sf-title {
        font-size: 28px;
    }
    
    .sf-file-item {
        width: 100%;
    }
    
    .sf-fab {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-secondary: rgba(43, 46, 50, 0.95);
        --bg-card: rgba(55, 58, 62, 0.9);
        --text-primary: #f8f9fa;
        --text-secondary: #adb5bd;
    }
}

/* Print Styles */
@media print {
    .sf-sidebar,
    .sf-fab,
    .sf-modal {
        display: none !important;
    }
    
    .sf-main {
        margin: 0;
        border-radius: 0;
        background: white;
    }
    
    .sf-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}