/* ===== MODERN COMPONENTS CSS ===== */

/* ==== قسم البطل المطور ==== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--accent-color) 100%);
    color: white;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(1deg); }
    66% { transform: translateY(5px) rotate(-1deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-xl);
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.85;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin: var(--spacing-3xl) 0;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.hero-stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-3xl);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: var(--font-size-xl);
    opacity: 0.7;
    animation: bounce 2s infinite;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Cards */
.card {
    background: var(--bg-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-light);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-light);
}

/* ==== بطاقات الدورات المطورة ==== */
.course-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    overflow: hidden;
    border: 1px solid var(--border-color);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

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

.course-card-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.course-card:hover .course-card-image img {
    transform: scale(1.1);
}

.course-level-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    backdrop-filter: blur(10px);
}

.course-favorite {
    position: absolute;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.course-favorite:hover {
    background: var(--danger-color);
    color: white;
    transform: scale(1.1);
}

.course-favorite.favorited {
    background: var(--danger-color);
    color: white;
}

.course-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-color));
}

.course-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-category {
    color: var(--primary-color);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.course-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.3;
    height: 3.2em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.course-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    height: 4.8em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    flex: 1;
}

.course-instructor {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.course-instructor-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.course-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
}

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

.course-stat-value {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.course-stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.course-price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.course-price-original {
    font-size: var(--font-size-sm);
    color: var(--text-quaternary);
    text-decoration: line-through;
    margin-left: var(--spacing-sm);
}

.course-cta {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: var(--font-size-sm);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: var(--dark-color);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
}

/* Navigation */
.navbar {
    background: var(--bg-color);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background: var(--bg-color);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control::placeholder {
    color: var(--text-light);
}

/* Progress Bar */
.progress {
    width: 100%;
    height: 0.5rem;
    background: var(--bg-light);
    border-radius: 9999px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 9999px;
    transition: var(--transition);
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background: var(--primary-color);
    color: white;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.badge-warning {
    background: var(--warning-color);
    color: var(--dark-color);
}

.badge-danger {
    background: var(--danger-color);
    color: white;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    border-color: var(--info-color);
    color: var(--info-color);
}

/* Statistics Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==== تصميم الأقسام ==== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius-full);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-action {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

/* ==== شبكة الدورات ==== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    margin: var(--spacing-3xl) 0;
}

/* ==== شبكة الميزات ==== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    margin: var(--spacing-3xl) 0;
}

.feature-card {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

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

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

.feature-icon {
    font-size: var(--font-size-4xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xl);
    display: block;
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* التصميم المتجاوب المحسن */
@media (max-width: 1200px) {
    .courses-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: var(--spacing-xl);
    }
    
    .courses-layout {
        grid-template-columns: 280px 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 1024px) {
    .courses-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .courses-sidebar {
        position: static;
        order: 2;
    }
    
    .courses-content {
        order: 1;
    }
    
    .sidebar-card {
        margin-bottom: var(--spacing-lg);
    }
    
    .quick-stats {
        flex-direction: row;
        gap: var(--spacing-md);
    }
    
    .quick-stat {
        flex: 1;
        padding: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-lg);
        margin: var(--spacing-2xl) 0;
    }
    
    .hero-stat-number {
        font-size: var(--font-size-2xl);
    }
    
    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-lg);
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-base);
    }
    
    /* صفحة الدورات - موبايل */
    .courses-title {
        font-size: var(--font-size-3xl);
    }
    
    .courses-subtitle {
        font-size: var(--font-size-base);
    }
    
    .search-form {
        padding: var(--spacing-lg);
    }
    
    .search-filters {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }
    
    .results-title {
        font-size: var(--font-size-xl);
    }
    
    .quick-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .categories-list {
        max-height: 300px;
        overflow-y: auto;
    }
    
    .sidebar-card {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .hero-stat {
        padding: var(--spacing-lg);
        background: rgba(255, 255, 255, 0.1);
        border-radius: var(--border-radius-lg);
        backdrop-filter: blur(10px);
    }
    
    .course-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

/* ===== AUTH PAGES STYLING ===== */
.auth-container {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.auth-card {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.auth-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15) !important;
}

.auth-logo {
    animation: pulse 2s infinite;
}

.auth-title {
    color: var(--dark-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.auth-form .form-control {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.3s ease;
}

.auth-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(var(--primary-rgb), 0.15);
    transform: translateY(-2px);
}

.auth-divider {
    position: relative;
    text-align: center;
    margin: 2rem 0;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.auth-divider span {
    background: white;
    padding: 0 1rem;
    color: var(--text-muted);
    position: relative;
    z-index: 1;
}

/* ===== USER STATUS INDICATORS ===== */
.user-status {
    position: relative;
    display: inline-block;
}

.user-status::after {
    content: '';
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
}

.user-status.online::after {
    background: var(--success-color);
    animation: pulse-green 2s infinite;
}

.user-status.away::after {
    background: var(--warning-color);
}

.user-status.offline::after {
    background: var(--text-muted);
}

@keyframes pulse-green {
    0% { box-shadow: 0 0 0 0 rgba(40, 167, 69, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(40, 167, 69, 0); }
    100% { box-shadow: 0 0 0 0 rgba(40, 167, 69, 0); }
}

/* ===== ONLINE USERS WIDGET ===== */
.online-users-widget {
    background: white;
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

.online-user-item {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.online-user-item:hover {
    background: var(--light-bg);
}

.online-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    margin-left: 0.75rem;
}

/* ==== صفحة الدورات ==== */
.courses-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-2xl) 0;
}

.courses-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.courses-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.courses-search-bar {
    max-width: 800px;
    margin: 0 auto;
}

.search-form {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.search-input-group {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-icon {
    position: absolute;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    z-index: 2;
}

.search-input {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    background: var(--bg-secondary);
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.1);
    outline: none;
}

.search-btn {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.05);
}

.search-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.filter-select {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    background: var(--bg-primary);
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.filter-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.1);
    outline: none;
}

.courses-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.courses-sidebar {
    position: sticky;
    top: var(--spacing-xl);
}

.sidebar-card {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.sidebar-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.categories-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.category-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.category-item:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    transform: translateX(4px);
}

.category-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.category-count {
    margin-right: auto;
    background: var(--bg-quaternary);
    color: var(--text-tertiary);
    padding: 2px 8px;
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.category-item.active .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.quick-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.quick-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.quick-stat:hover {
    background: var(--bg-tertiary);
    transform: scale(1.02);
}

.stat-icon {
    font-size: var(--font-size-2xl);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.courses-content {
    min-height: 500px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.results-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.results-count {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.view-toggle {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
}

.view-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.view-btn.active,
.view-btn:hover {
    background: var(--primary-color);
    color: white;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-4xl) var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    border: 2px dashed var(--border-color);
}

.empty-icon {
    font-size: var(--font-size-6xl);
    margin-bottom: var(--spacing-xl);
}

.empty-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.empty-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.instructor-online {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: rgba(16, 185, 129, 0.95);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    backdrop-filter: blur(10px);
}

.online-indicator {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* 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); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ==== MODERN HEADER STYLES ==== */
.modern-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.modern-header.scrolled {
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.98);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: var(--spacing-xl);
    min-height: 80px;
}

/* Header Brand */
.header-brand {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
}

.brand-link:hover {
    transform: scale(1.02);
}

.brand-logo {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
    box-shadow: var(--shadow-md);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.brand-tagline {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Header Search */
.header-search {
    flex: 1;
    max-width: 500px;
    margin: 0 auto;
}

.search-form {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-full);
    border: 2px solid transparent;
    transition: var(--transition);
    overflow: hidden;
}

.search-form:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.1);
}

.search-input-wrapper {
    flex: 1;
    position: relative;
}

.search-icon {
    position: absolute;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    z-index: 2;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-3xl) var(--spacing-md) var(--spacing-lg);
    border: none;
    background: transparent;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.search-input:focus {
    outline: none;
}

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

.search-submit {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-md);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    margin: 4px;
}

.search-submit:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    margin-top: 8px;
    z-index: 1000;
    display: none;
}

/* Header Navigation */
.header-nav .nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-lg);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.nav-link.active {
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(var(--primary-rgb), 0.05));
}

.nav-link.active::before {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    min-width: 200px;
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    list-style: none;
    margin: 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.dropdown-link:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-sm) 0;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.action-item {
    position: relative;
}

.action-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.notification-badge,
.online-count {
    position: absolute;
    top: -4px;
    left: -4px;
    background: var(--danger-color);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--border-radius-full);
    min-width: 18px;
    text-align: center;
    animation: pulse 2s infinite;
}

/* User Profile Button */
.user-profile-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
}

.user-profile-btn:hover {
    background: var(--bg-tertiary);
    transform: scale(1.02);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-status {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
}

.user-status.online {
    background: var(--success-color);
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.user-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.dropdown-arrow {
    color: var(--text-tertiary);
    transition: var(--transition);
}

.user-profile:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* Theme Toggle */
.theme-toggle .action-btn {
    overflow: hidden;
}

.theme-icon {
    transition: var(--transition);
}

.dark-mode .theme-icon::before {
    content: '\f58c'; /* sun icon */
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.menu-line {
    width: 20px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 1px;
    transition: var(--transition);
}

.mobile-menu-btn:hover .menu-line {
    background: var(--primary-color);
}

.mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Guest Actions */
.guest-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: absolute;
    top: 0;
    right: 0;
    height: 100vh;
    width: 320px;
    background: white;
    box-shadow: var(--shadow-2xl);
    transform: translateX(100%);
    transition: var(--transition);
    overflow-y: auto;
}

.mobile-menu-overlay.active .mobile-menu {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.mobile-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    color: var(--text-primary);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-menu-close:hover {
    background: var(--danger-color);
    color: white;
}

.mobile-search {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.mobile-search-input {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    gap: var(--spacing-sm);
}

.mobile-search input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--font-size-base);
}

.mobile-search input:focus {
    outline: none;
}

.mobile-nav {
    padding: var(--spacing-lg);
}

.mobile-nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    margin-bottom: var(--spacing-sm);
}

.mobile-nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.mobile-nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-lg) 0;
}

/* Responsive Header */
@media (max-width: 1200px) {
    .header-container {
        grid-template-columns: auto 1fr auto;
        gap: var(--spacing-lg);
    }
    
    .header-search {
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    .header-container {
        grid-template-columns: auto 1fr auto;
        padding: 0 var(--spacing-lg);
        min-height: 70px;
    }
    
    .header-search,
    .header-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .brand-text {
        display: none;
    }
    
    .brand-logo {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }
    
    .header-actions {
        gap: var(--spacing-sm);
    }
    
    .action-btn {
        width: 40px;
        height: 40px;
    }
    
    .user-info {
        display: none;
    }
    
    .guest-actions .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
}

@media (min-width: 769px) {
    .mobile-menu-toggle {
        display: none;
    }
}

/* ==== MODERN FOOTER STYLES ==== */
.modern-footer {
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--text-primary) 100%);
    color: white;
    margin-top: var(--spacing-4xl);
    position: relative;
    overflow: hidden;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: 2;
}

/* Footer Top */
.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-4xl);
    padding: var(--spacing-4xl) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-logo i {
    font-size: var(--font-size-3xl);
    color: var(--accent-color);
}

.footer-brand-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: white;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    max-width: 400px;
}

.footer-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-stat {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.footer-stat:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.footer-stat .stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
}

.footer-stat .stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

/* Footer Links Grid */
.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-2xl);
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: white;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition);
    padding: var(--spacing-xs) 0;
    position: relative;
}

.footer-link:hover {
    color: var(--accent-color);
    padding-right: var(--spacing-sm);
}

.footer-link::before {
    content: '';
    position: absolute;
    left: -var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

.footer-link:hover::before {
    width: 8px;
}

/* Footer Contact */
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

.contact-item i {
    color: var(--accent-color);
    font-size: var(--font-size-lg);
    width: 20px;
    text-align: center;
}

.contact-item a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--accent-color);
}

/* Footer Social */
.footer-social {
    margin-top: var(--spacing-xl);
}

.social-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: white;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.social-link {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.4);
}

/* Newsletter Section */
.footer-newsletter {
    padding: var(--spacing-3xl) 0;
    background: rgba(255, 255, 255, 0.05);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.newsletter-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-md);
}

.newsletter-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.newsletter-input-group {
    display: flex;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    transition: var(--transition);
}

.newsletter-input-group:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.2);
}

.newsletter-icon {
    padding: 0 var(--spacing-lg);
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
}

.newsletter-input {
    flex: 1;
    padding: var(--spacing-lg);
    border: none;
    background: transparent;
    color: white;
    font-size: var(--font-size-base);
}

.newsletter-input:focus {
    outline: none;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.newsletter-btn:hover {
    background: var(--accent-dark);
    transform: scale(1.02);
}

.newsletter-privacy {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.copyright {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    margin: 0;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.legal-link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: var(--transition);
}

.legal-link:hover {
    color: var(--accent-color);
}

.legal-separator {
    color: rgba(255, 255, 255, 0.3);
}

.footer-bottom-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.footer-badges {
    display: flex;
    gap: var(--spacing-lg);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-xs);
    transition: var(--transition);
}

.badge-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.badge-item i {
    color: var(--accent-color);
}

/* Back to Top Button */
.back-to-top {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    position: fixed;
    bottom: var(--spacing-2xl);
    left: var(--spacing-2xl);
    z-index: var(--z-fixed);
}

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

.back-to-top:hover {
    background: var(--accent-dark);
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

/* Footer Wave Animation */
.footer-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: rotate(180deg);
}

.footer-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 60px;
}

.footer-wave path {
    fill: var(--bg-secondary);
    animation: waveFloat 8s ease-in-out infinite;
}

@keyframes waveFloat {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-20px); }
}

/* Responsive Footer */
@media (max-width: 1200px) {
    .footer-top {
        gap: var(--spacing-3xl);
    }
    
    .footer-links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
    
    .newsletter-content {
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .footer-container {
        padding: 0 var(--spacing-lg);
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .footer-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }
    
    .footer-links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
        text-align: right;
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .newsletter-input-group {
        flex-direction: column;
        border-radius: var(--border-radius-lg);
    }
    
    .newsletter-btn {
        border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-badges {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }
    
    .social-links {
        justify-content: center;
    }
    
    .back-to-top {
        bottom: var(--spacing-lg);
        left: var(--spacing-lg);
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .footer-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .footer-links-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .footer-badges {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.text-info { color: var(--info-color); }
.text-light { color: var(--text-light); }
.text-dark { color: var(--dark-color); }

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--bg-color); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

.rounded { border-radius: var(--border-radius); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-full { border-radius: 9999px; }

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

/* ===== Additions: mobile nav active, admin collapsed, RTL icon spacing, pills ===== */
.mobile-nav .mobile-nav-item.active {
  background: var(--bg-tertiary);
  color: var(--primary-color);
}

.dashboard.sidebar-collapsed {
  grid-template-columns: 72px 1fr;
}

.dashboard.sidebar-collapsed .admin-sidebar .nav-link span,
.dashboard.sidebar-collapsed .sidebar-menu .nav-link span {
  display: none;
}

[dir="rtl"] .nav-link i,
[dir="rtl"] .dropdown-item i {
  margin-left: .5rem;
  margin-right: 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .25rem .5rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  font-size: var(--font-size-xs);
}