/* ==========================================================================
   SUBPAGE BASE & BANNER STYLES
   Tối ưu 100% Responsive, Phối màu & Font chữ tự động theo biến :root
   ========================================================================== */
.subpage-body {
    padding-top: 80px;
    background-color: #ffffff;
    color: var(--text);
    font-family: var(--font-main, 'Plus Jakarta Sans', sans-serif);
    line-height: 1.6;
}

.subpage-main {
    min-height: calc(100vh - 420px);
}

.subpage-body h1,
.subpage-body h2,
.subpage-body h3,
.subpage-body h4,
.page-banner-title,
.sidebar-title,
.article-title,
.related-title,
.card-title,
.vm-title,
.cv-title {
    font-family: var(--font-heading, var(--font-main, 'Plus Jakarta Sans', sans-serif));
}

.subpage-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Page Banner & Breadcrumbs (3 Variants: Light Center, Dark Cover, Split Modern) */
.page-banner {
    position: relative;
    padding: 60px 20px 45px;
    background: linear-gradient(180deg, var(--primary-light) 0%, rgba(255, 255, 255, 0.95) 100%);
    text-align: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    margin-bottom: 40px;
}

.page-banner.banner-dark-cover {
    background: linear-gradient(135deg, #0f172a 0%, var(--primary-dark) 100%);
    color: #ffffff;
    border-bottom: none;
    padding: 70px 20px 55px;
}
.page-banner.banner-dark-cover .page-banner-badge {
    background-color: rgba(255, 255, 255, 0.14);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.25);
}
.page-banner.banner-dark-cover .page-banner-title {
    color: #ffffff;
}
.page-banner.banner-dark-cover .page-banner-desc {
    color: rgba(255, 255, 255, 0.85);
}
.page-banner.banner-dark-cover .breadcrumbs,
.page-banner.banner-dark-cover .breadcrumbs a {
    color: rgba(255, 255, 255, 0.8);
}
.page-banner.banner-dark-cover .breadcrumbs span,
.page-banner.banner-dark-cover .breadcrumbs a:hover {
    color: #ffffff;
}

.page-banner.banner-split-modern {
    text-align: left;
    background: var(--light, #f8fafc);
    border-bottom: 1px solid #e2e8f0;
    padding: 50px 20px 40px;
}
.page-banner.banner-split-modern .page-banner-desc {
    margin: 0 0 18px 0;
}
.page-banner.banner-split-modern .breadcrumbs {
    justify-content: flex-start;
    display: inline-flex;
    background: #ffffff;
    padding: 8px 18px;
    border-radius: var(--radius-btn, 30px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    border: 1px solid #edf2f7;
}

.page-banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--primary);
    border-radius: var(--radius-btn, 50px);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    margin-bottom: 15px;
}

.page-banner-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.25;
}

.page-banner-desc {
    max-width: 700px;
    margin: 0 auto 20px;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumbs a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.breadcrumbs i {
    font-size: 0.75rem;
    opacity: 0.5;
}

.breadcrumbs span {
    color: var(--primary);
    font-weight: 600;
}

.card-tag {
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
    display: inline-block;
}

.btn-buy-now, .btn-add-cart {
    padding: 14px 28px;
    border-radius: var(--radius-btn, var(--radius));
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-buy-now {
    background: var(--primary);
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    flex: 1;
}

.btn-buy-now:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-add-cart {
    background: #ffffff;
    color: var(--primary) !important;
    border: 2px solid var(--primary);
    flex: 1;
}

.btn-add-cart:hover {
    background: var(--primary-light);
}

@media (max-width: 991px) {
    .page-banner-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .subpage-body {
        padding-top: 70px;
    }
    .page-banner.banner-split-modern {
        text-align: center;
    }
    .page-banner.banner-split-modern .page-banner-desc {
        margin: 0 auto 18px auto;
    }
    .page-banner.banner-split-modern .breadcrumbs {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .page-banner-title {
        font-size: 1.6rem;
    }
}

/* ==========================================================================
   ARCHIVE, LISTING GRIDS, FILTER PILLS & RELATED ITEMS
   ========================================================================== */
.archive-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.archive-card {
    background: #ffffff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid #edf2f7;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.archive-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.card-img-wrap {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.archive-card:hover .card-img-wrap img {
    transform: scale(1.06);
}

.card-content {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.4;
}

.card-title a {
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
}

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

.card-excerpt {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.card-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
    font-size: 0.92rem;
    transition: var(--transition);
}

.card-link-btn:hover {
    gap: 10px;
    color: var(--primary-dark);
}

.archive-featured-box {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 30px;
    background: #ffffff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid #edf2f7;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.05);
    margin-bottom: 45px;
    align-items: center;
}

.archive-featured-box .card-img-wrap {
    height: 340px;
}

.archive-featured-box .card-content {
    padding: 30px;
}

.archive-featured-box .card-title {
    font-size: 1.6rem;
}

.pagination-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 40px 0 60px;
}

.page-btn {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8fafc;
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    border: 1px solid #edf2f7;
}

.page-btn:hover, .page-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.filter-pills-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 40px;
}

.filter-pill {
    display: inline-flex;
    align-items: center;
    padding: 9px 22px;
    border-radius: var(--radius-btn, 30px);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    background: #ffffff;
    border: 1px solid #e2e8f0;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.filter-pill:hover, .filter-pill.active {
    background: var(--primary);
    color: #ffffff !important;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(15, 117, 189, 0.25);
}

.featured-deal-card {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 35px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    padding: 30px;
    margin-bottom: 45px;
    box-shadow: var(--shadow);
    align-items: center;
}

.featured-deal-img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: calc(var(--radius) - 4px);
}

.featured-deal-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #fee2e2;
    color: #ef4444;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.related-section {
    margin-top: 60px;
    padding-top: 45px;
    border-top: 2px solid #f1f5f9;
}

.related-header {
    margin-bottom: 30px;
}

.related-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-light);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 8px;
}

.related-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 6px;
    line-height: 1.3;
}

.related-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
}

@media (max-width: 991px) {
    .archive-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .archive-featured-box, .featured-deal-card {
        grid-template-columns: 1fr;
    }
    .featured-deal-card {
        padding: 20px;
    }
    .archive-featured-box .card-img-wrap, .featured-deal-img {
        height: 260px;
    }
}

@media (max-width: 640px) {
    .archive-grid {
        grid-template-columns: 1fr;
    }
}