:root {
    --bs-primary: #0d6efd;
    --lms-dark: #111827;
    --lms-muted: #6b7280;
    --lms-surface: #f8fafc;
}

html,
body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #f8fafc;
    color: var(--lms-dark);
}

body {
    min-height: 100vh;
}

main {
    min-height: calc(100vh - 180px);
}

.py-lg-6 {
    padding-top: 5rem !important;
    padding-bottom: 5rem !important;
}

.min-vh-75 {
    min-height: 75vh;
}

.navbar-brand,
.nav-link,
.btn,
.card,
.feature-box,
.course-card,
.category-card,
.hero-card {
    transition: all 0.25s ease;
}

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

.btn:hover {
    transform: translateY(-1px);
}

.hero-section {
    background: radial-gradient(circle at top right, rgba(13, 110, 253, 0.12), transparent 35%), #f8fafc;
}

.hero-card,
.course-card,
.category-card,
.filter-card,
.mock-payment-box,
.page-content-shell,
.success-order-card {
    border-radius: 1.25rem;
}

.feature-box:hover,
.course-card:hover,
.category-card:hover,
.hero-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 1rem 2rem rgba(15, 23, 42, 0.08);
}

.course-card img,
.course-detail-thumbnail {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 1rem;
    background: #e5e7eb;
}

.course-card .card-body {
    padding: 1.25rem;
}

.course-meta,
.muted-small {
    color: var(--lms-muted);
    font-size: 0.9rem;
}

.cart-count-badge {
    position: absolute;
    top: -0.45rem;
    right: -0.45rem;
    min-width: 1.35rem;
}

.category-card {
    background: #fff;
    border: 1px solid rgba(148, 163, 184, 0.16);
    padding: 1.5rem;
    height: 100%;
}

.category-card .icon-wrap,
.icon-circle {
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon-circle {
    font-size: 1.25rem;
}

.course-price {
    font-size: 1.15rem;
    font-weight: 700;
}

.course-price .old-price {
    color: var(--lms-muted);
    font-weight: 500;
    text-decoration: line-through;
    margin-left: 0.5rem;
}

.course-outline-list,
.review-list,
.cart-item-list,
.order-item-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.course-outline-list li,
.review-list li,
.cart-item-list li,
.order-item-list li {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.course-outline-list li:last-child,
.review-list li:last-child,
.cart-item-list li:last-child,
.order-item-list li:last-child {
    border-bottom: 0;
}

.page-content-shell .card-body,
.course-detail-main .card,
.course-detail-sidebar .card,
.cart-summary-wrap .card,
.checkout-summary-wrap .card,
.success-order-card {
    background: #fff;
}

.empty-state {
    background: #fff;
    border: 1px dashed rgba(148, 163, 184, 0.4);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
}

@media (max-width: 991.98px) {
    .course-card img,
    .course-detail-thumbnail {
        height: 200px;
    }
}