/* Course Detail */
.course-detail {
    padding-top: 80px;
}

.course-hero {
    background: linear-gradient(135deg, var(--navy), var(--navy-light));
    color: var(--white);
    padding: var(--space-12) 0;
}

.course-hero-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-10);
    align-items: start;
}

.course-hero h1 {
    color: var(--white);
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.course-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    margin: var(--space-4) 0;
}

.course-hero-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
}

.course-hero-instructor {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.course-hero-instructor img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--gold);
}

.course-hero-instructor-info span {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
}

.course-hero-instructor-info strong {
    color: var(--white);
}

/* Sticky Purchase Card */
.purchase-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: sticky;
    top: 100px;
}

.purchase-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--navy);
}

.purchase-card-body {
    padding: var(--space-6);
}

.purchase-card-price {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--navy);
    margin-bottom: var(--space-4);
}

.purchase-card-features {
    margin: var(--space-4) 0;
}

.purchase-card-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--gray-600);
}

.purchase-card-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
}

/* Course Content */
.course-content {
    padding: var(--space-12) 0;
}

.course-content-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-10);
}

.course-content-main {
    max-width: 100%;
}

/* What you'll learn */
.learn-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.learn-item {
    display: flex;
    gap: var(--space-2);
    font-size: var(--text-sm);
    padding: var(--space-2);
}

.learn-item::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    flex-shrink: 0;
}

/* Instructor Profile */
.instructor-profile {
    display: flex;
    gap: var(--space-6);
    padding: var(--space-6);
    background: var(--gray-100);
    border-radius: var(--radius-lg);
}

.instructor-profile img {
    width: 96px;
    height: 96px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    flex-shrink: 0;
}

.instructor-stats {
    display: flex;
    gap: var(--space-6);
    margin: var(--space-3) 0;
}

.instructor-stats span {
    font-size: var(--text-sm);
    color: var(--gray-500);
}

/* Reviews */
.review-item {
    padding: var(--space-5) 0;
    border-bottom: 1px solid var(--gray-200);
}

.review-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.review-header img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.review-rating {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* FAQ */
.faq-section {
    margin-top: var(--space-10);
}

@media (max-width: 1024px) {

    .course-hero-grid,
    .course-content-grid {
        grid-template-columns: 1fr;
    }

    .purchase-card {
        position: static;
        margin-top: var(--space-6);
    }
}