/* ============================================
   COURSES PAGE - PREMIUM MODERN DESIGN
   ============================================ */

/* Hero Section */
.courses-hero {
    background: var(--gradient-hero);
    padding: var(--space-24) 0 var(--space-20);
    position: relative;
    overflow: hidden;
    color: var(--white);
    text-align: center;
}

.courses-hero .hero-shapes .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: 0;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    bottom: -50px;
    left: -50px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: white;
}

.hero-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0;
}

/* Filter Section */
.section-filters {
    margin-top: -4rem;
    position: relative;
    z-index: 10;
}

.filter-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    box-shadow:
        0 20px 50px -10px rgba(0, 0, 0, 0.12),
        0 10px 20px -5px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--gray-100);
}

.filter-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-8);
}

/* Search Box */
.search-box {
    flex: 1;
    max-width: 500px;
}

.search-form {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.search-form i {
    position: absolute;
    left: 1.25rem;
    color: var(--gray-400);
}

.search-form input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    background: var(--gray-50);
    font-weight: 500;
    transition: all 0.3s ease;
}

.search-form input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px var(--primary-soft);
}

/* Category Tabs */
.category-tabs {
    display: flex;
    background: var(--gray-100);
    padding: 0.5rem;
    border-radius: var(--radius-xl);
    gap: 0.25rem;
}

.tab-item {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--gray-600);
    transition: all 0.3s ease;
    white-space: nowrap;
}

.tab-item:hover {
    color: var(--primary);
}

.tab-item.active {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

/* Listing Header */
.listing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
}

.listing-info span {
    font-size: 1rem;
    color: var(--gray-600);
}

/* Modern Course Grid */
.courses-modern-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.course-modern-card {
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 1px solid var(--gray-100);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.course-modern-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-soft);
}

/* Card Image Section */
.card-image-section {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.card-image-section img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.level-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 800;
    font-size: 0.75rem;
    text-transform: uppercase;
    z-index: 10;
    backdrop-filter: blur(8px);
    color: white;
}

.badge-beginner {
    background: rgba(95, 165, 72, 0.9);
}

.badge-intermediate {
    background: rgba(212, 160, 58, 0.9);
}

.badge-advanced {
    background: rgba(200, 55, 74, 0.9);
}

.card-overlay-stats {
    position: absolute;
    bottom: var(--space-4);
    left: var(--space-4);
    right: var(--space-4);
    display: flex;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-xl);
    color: white;
    z-index: 10;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.4s ease;
}

.course-modern-card:hover .card-overlay-stats {
    opacity: 1;
    transform: translateY(0);
}

.overlay-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
}

.overlay-stat i {
    color: var(--primary-light);
}

/* Card Content Section */
.card-content-section {
    padding: var(--space-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-meta-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.rating {
    display: flex;
    align-items: center;
    gap: 2px;
}

.rating i {
    color: #FFB800;
    font-size: 0.875rem;
}

.rating span {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--gray-700);
    margin-left: var(--space-2);
}

.featured-label {
    background: var(--primary-soft);
    color: var(--primary);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-md);
    font-size: 0.625rem;
    font-weight: 800;
    text-transform: uppercase;
}

.course-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--space-3);
    line-height: 1.3;
}

.course-title a {
    color: var(--secondary);
    transition: color 0.3s ease;
}

.course-title a:hover {
    color: var(--primary);
}

.course-excerpt {
    color: var(--gray-600);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--space-6);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-features-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: var(--space-8);
}

.feature-tag {
    padding: 0.4rem 0.75rem;
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--secondary);
}

.feature-tag i {
    color: var(--success);
    margin-right: 0.25rem;
}

/* Card Footer Section */
.card-footer-section {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-5);
    border-top: 1px solid var(--gray-100);
}

.price-container {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
}

.current-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
}

.old-price {
    font-size: 0.9375rem;
    text-decoration: line-through;
    color: var(--gray-400);
}

.btn-link {
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
}

.btn-link:hover i {
    transform: translateX(5px);
}

/* Placeholder Styling */
.placeholder-visual {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-6);
    color: white;
}

.placeholder-1 {
    background: linear-gradient(135deg, #D4A03A 0%, #E5B855 100%);
}

.placeholder-2 {
    background: linear-gradient(135deg, #C8374A 0%, #D95566 100%);
}

.placeholder-3 {
    background: linear-gradient(135deg, #5FA548 0%, #76B85F 100%);
}

.placeholder-visual i {
    font-size: 3.5rem;
    margin-bottom: var(--space-4);
    opacity: 0.3;
}

.placeholder-visual span {
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.2;
}

/* Why Enroll Section */
.why-enroll-section {
    background: #fcfcfc;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.value-card {
    background: white;
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    text-align: center;
    border: 1px solid var(--gray-100);
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-soft);
}

.value-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto var(--space-6);
}

/* Timeline Modern */
.modern-timeline {
    position: relative;
    max-width: 900px;
    margin: var(--space-12) auto 0;
}

.modern-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 2px;
    background: var(--gray-200);
}

.timeline-item {
    position: relative;
    padding-left: var(--space-16);
    margin-bottom: var(--space-10);
}

.timeline-dot {
    position: absolute;
    left: 0;
    top: 0;
    width: 42px;
    height: 42px;
    background: white;
    border: 4px solid var(--primary);
    border-radius: 50%;
    z-index: 1;
}

.step-label {
    display: inline-block;
    color: var(--primary);
    font-weight: 800;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-1);
}

/* Corporate Premium */
.corporate-premium {
    background: #111;
    color: white;
}

.corporate-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.badge-accent {
    display: inline-block;
    background: rgba(212, 160, 58, 0.2);
    color: #D4A03A;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: var(--space-6);
}

.corporate-content-premium h2 {
    font-size: 3rem;
    color: white;
    margin-bottom: var(--space-6);
}

.premium-list {
    list-style: none;
    padding: 0;
    margin: var(--space-8) 0;
}

.premium-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: var(--space-4);
    font-size: 1.125rem;
}

.premium-list i {
    color: var(--success);
    font-size: 1.25rem;
}

.corporate-actions {
    display: flex;
    gap: var(--space-4);
}

.corporate-visual-premium {
    position: relative;
}

.visual-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.visual-wrapper img {
    width: 100%;
    display: block;
}

.stat-overlay {
    position: absolute;
    bottom: -30px;
    left: -30px;
    z-index: 10;
}

.stat-circle {
    width: 140px;
    height: 140px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 8px solid #111;
}

.stat-circle strong {
    font-size: 1.75rem;
    line-height: 1;
}

.stat-circle span {
    font-size: 0.75rem;
    font-weight: 700;
    text-align: center;
}

/* Listing CTA */
.cta-gradient-card {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    padding: var(--space-16);
    border-radius: var(--radius-3xl);
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-gradient-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(212, 160, 58, 0.1) 0%, transparent 60%);
}

.cta-inner {
    position: relative;
    z-index: 1;
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-10);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .courses-modern-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .filter-grid {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        max-width: none;
    }

    .corporate-container {
        grid-template-columns: 1fr;
    }

    .corporate-visual-premium {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }

    .hero-content h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {

    .courses-modern-grid,
    .value-grid {
        grid-template-columns: 1fr;
    }

    .category-tabs {
        overflow-x: auto;
        padding-bottom: 1rem;
    }

    .cta-group {
        flex-direction: column;
    }

    .corporate-actions {
        flex-direction: column;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }
}