/* Enhanced LMS Styling - Modern & Beautiful */
/* 
   Note: Color variables are now defined in color-themes.css
   This file uses those variables for enhanced styling
*/

/* 1. Enhanced Top Navigation */
.top-navbar {
    background: var(--primary-gradient, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-large, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
}

.navbar-title {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 12px;
    margin: 10px 30px;
    padding: 15px 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar-title h1 {
    font-size: 26px;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: 1px;
}

/* 2. Enhanced Dashboard Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
    transition: box-shadow 0.2s ease;
    transform: none !important;
    position: relative;
    overflow: hidden;
}

/* Removed top line animation - too distracting */

.stat-card:hover {
    /* Very subtle shadow only - NO movement */
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.12);
    transform: none !important;
}

.stat-icon {
    background: var(--primary-gradient);
    width: 70px;
    height: 70px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 25px;
    font-size: 28px;
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.3);
    /* Removed transition - completely static */
}

.stat-card:hover .stat-icon {
    /* Removed all hover effects - icon stays completely still */
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.stat-content h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 3. Enhanced Buttons */
.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

/* Removed shimmer animation on buttons - too distracting */

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    /* Reduced movement for subtlety */
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background: var(--success-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(79, 172, 254, 0.3);
}

.btn-success:hover {
    /* Reduced movement for subtlety */
    box-shadow: 0 6px 20px rgba(79, 172, 254, 0.3);
}

.btn-danger {
    background: var(--danger-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(250, 112, 154, 0.3);
}

.btn-danger:hover {
    /* Reduced movement for subtlety */
    box-shadow: 0 6px 20px rgba(250, 112, 154, 0.3);
}

/* 4. Enhanced Tables */
.table-container {
    background: var(--bg-secondary);
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.data-table th {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 20px 16px;
    text-align: left;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    transition: background-color 0.2s ease;
}

.data-table tbody tr {
    transition: all 0.2s ease;
}

.data-table tbody tr:hover {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

/* 5. Enhanced Form Elements */
.form-container {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-large);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: var(--bg-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

/* 6. Enhanced Status Badges */
.status-badge {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.status-available {
    background: var(--status-available-bg, linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%));
    color: var(--status-available-text, #155724);
    border: 1px solid var(--status-available-border, #c3e6cb);
}

.status-issued {
    background: var(--status-issued-bg, linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%));
    color: var(--status-issued-text, #721c24);
    border: 1px solid var(--status-issued-border, #f5c6cb);
}

.status-damaged {
    background: var(--status-damaged-bg, linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%));
    color: var(--status-damaged-text, #856404);
    border: 1px solid var(--status-damaged-border, #ffeaa7);
}

/* 7. Enhanced Modals */
.modal {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 20px;
    box-shadow: var(--shadow-large);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
}

.modal-header {
    background: var(--primary-gradient);
    color: white;
    padding: 25px 30px;
    border-radius: 20px 20px 0 0;
    border-bottom: none;
}

/* 8. Enhanced Loading States */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 9. Enhanced Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* 10. Enhanced Mobile Responsiveness */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .stat-card {
        padding: 25px;
    }
    
    .navbar-title {
        margin: 10px 20px;
        padding: 12px 20px;
    }
    
    .navbar-title h1 {
        font-size: 22px;
    }
    
    .form-container {
        padding: 30px 20px;
        margin: 20px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 13px;
    }
}

/* 11. Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --text-primary: #f8fafc;
        --text-secondary: #cbd5e1;
        --border-color: #334155;
    }
    
    body {
        background-color: var(--bg-primary);
        color: var(--text-primary);
    }
}

/* 12. Enhanced Action Buttons for Tables */
.data-table .action-buttons {
    display: flex;
    gap: 3px;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    flex-wrap: nowrap;
    min-width: 120px;
    padding: 2px;
}

.data-table .action-buttons .btn {
    min-width: 30px;
    height: 28px;
    padding: 4px 6px;
    font-size: 11px;
    line-height: 1;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.data-table .action-buttons .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.data-table .action-buttons .btn i {
    font-size: 11px;
}

/* Compact button variants for table actions */
.data-table .btn-primary.btn-sm {
    background: var(--btn-success-bg, linear-gradient(135deg, #4facfe 0%, #00f2fe 100%));
    color: white;
    border: none;
}

.data-table .btn-secondary.btn-sm {
    background: var(--btn-secondary-bg, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    color: white;
    border: none;
}

.data-table .btn-danger.btn-sm {
    background: var(--btn-danger-bg, linear-gradient(135deg, #fa709a 0%, #fee140 100%));
    color: white;
    border: none;
}

/* 13. Enhanced Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 4px;
}

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