/* Custom CSS for Kids Activities Platform */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 8px;
    --box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

/* Global Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
}

/* ===== OUTER MARGIN ADS STYLING ===== */
.outer-margin-ads {
    position: fixed;
    top: 120px; /* Below your navigation */
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.left-margin-ads {
    left: 20px;
    width: 160px;
}

.right-margin-ads {
    right: 20px;
    width: 160px;
}

.margin-ad-container {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
    margin-bottom: 15px;
}

.margin-ad-container::before {
    content: "Advertisement";
    display: block;
    font-size: 9px;
    color: #6c757d;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Hide margin ads when screen is too narrow */
@media (max-width: 1400px) {
    .outer-margin-ads {
        display: none;
    }
}

/* Adjust for very wide screens */
@media (min-width: 1600px) {
    .left-margin-ads {
        left: 40px;
    }
    .right-margin-ads {
        right: 40px;
    }
}

/* Ensure main content doesn't overlap with margin ads */
@media (min-width: 1400px) {
    body {
        padding-left: 200px;
        padding-right: 200px;
    }
}

.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    box-shadow: var(--box-shadow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* Navigation */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    opacity: 0.1;
}

/* Cards */
.feature-card {
    border: none;
    transition: var(--transition);
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.material-card {
    border: none;
    overflow: hidden;
    transition: var(--transition);
}

.material-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.material-card .card-img-top {
    transition: var(--transition);
}

.material-card:hover .card-img-top {
    transform: scale(1.05);
}

/* Badges */
.badge {
    font-weight: 500;
    border-radius: var(--border-radius);
}

/* Forms */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #e9ecef;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-select {
    border-radius: var(--border-radius);
    border: 1px solid #e9ecef;
}

/* Pagination */
.pagination .page-link {
    border-radius: var(--border-radius);
    border: 1px solid #dee2e6;
    color: var(--primary-color);
    margin: 0 2px;
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
}

/* Star Ratings */
.rating-stars .fa-star {
    color: #ffc107;
    cursor: pointer;
    transition: var(--transition);
}

.rating-stars .fa-star:hover {
    transform: scale(1.1);
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Footer */
footer {
    background: linear-gradient(135deg, #2c3e50, #34495e) !important;
}

footer a {
    transition: var(--transition);
}

footer a:hover {
    color: var(--primary-color) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .card-columns {
        column-count: 1;
    }
}

@media (max-width: 576px) {
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .display-4 {
        font-size: 1.75rem;
    }
}

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

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

/* Toast Notifications */
.toast-container {
    z-index: 1100;
}

.toast {
    border: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.shadow-hover {
    transition: var(--transition);
}

.shadow-hover:hover {
    box-shadow: 0 12px 30px rgba(0,0,0,0.15) !important;
    transform: translateY(-2px);
}

/* Dashboard Specific */
.dashboard-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.stats-card {
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.stats-card:hover {
    border-left-color: var(--secondary-color);
    transform: translateX(5px);
}

/* Material Detail Page */
.material-detail-image {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-height: 400px;
    object-fit: cover;
}

.material-info-card {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border: none;
}

/* File List */
.file-item {
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.file-item:hover {
    background-color: var(--light-color);
    border-color: var(--primary-color);
}

/* Review Cards */
.review-card {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--border-radius);
}

/* Admin Styles */
.admin-sidebar {
    background: linear-gradient(135deg, #2c3e50, #34495e);
    min-height: 100vh;
}

.admin-card {
    border: none;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.admin-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

.bounce-in {
    animation: bounceIn 0.6s ease-out;
}

.activity-video, .main-video {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
}

.video-container {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.activity-card .video-container {
    height: 250px;
}

@keyframes bounceIn {
    0% { opacity: 0; transform: scale(0.3); }
    50% { opacity: 1; transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { opacity: 1; transform: scale(1); }
}

/* Print Styles */
@media print {
    .navbar, footer, .btn, .pagination {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #dee2e6 !important;
    }
}