/* === Institutional Design System === */
:root {
    --primary-900: #1a2744;
    --primary-800: #1e3a5f;
    --primary-700: #234b7a;
    --primary-600: #2a5f9e;
    --primary-500: #3572b0;
    --primary-400: #5a9bd5;
    --primary-300: #8bb8e8;
    --primary-200: #bdd6f2;
    --primary-100: #e8f1fa;
    --accent-500: #c8a951;
    --accent-400: #d4bc6a;
    --accent-600: #b8963e;
}

body { font-family: 'Inter', sans-serif; }

/* === Top Bar === */
.cms-topbar {
    background: var(--primary-900);
    color: rgba(255,255,255,0.7);
    font-size: 0.8rem;
    letter-spacing: 0.025em;
}

/* === Header === */
.cms-header {
    background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-700) 50%, var(--primary-600) 100%);
    box-shadow: 0 4px 20px rgba(26, 39, 68, 0.25);
    position: relative;
}
.cms-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-500), var(--accent-400), var(--accent-500));
}

/* === Navigation === */
.cms-nav-link {
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.cms-nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.12);
}
.cms-nav-link.active {
    color: var(--accent-400);
    background: rgba(255,255,255,0.08);
}

/* === Mobile menu === */
.cms-mobile-toggle {
    display: none;
    color: white;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: background 0.2s;
}
.cms-mobile-toggle:hover {
    background: rgba(255,255,255,0.1);
}
.cms-mobile-toggle svg {
    width: 1.5rem;
    height: 1.5rem;
}

@media (max-width: 768px) {
    .cms-mobile-toggle { display: block; }
    .cms-nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        padding-top: 1rem;
        gap: 0.25rem;
    }
    .cms-nav-links.open { display: flex; }
    .cms-header-inner {
        flex-wrap: wrap;
    }
}

/* === Footer === */
.cms-footer {
    background: linear-gradient(180deg, var(--primary-900) 0%, #111827 100%);
    color: rgba(255,255,255,0.7);
}
.cms-footer a {
    color: rgba(255,255,255,0.7);
    transition: color 0.2s;
}
.cms-footer a:hover {
    color: var(--accent-400);
}
.cms-footer-title {
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.75rem;
}
.cms-footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 2.5rem;
    height: 2px;
    background: var(--accent-500);
}
.cms-footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* === Page transitions === */
main { animation: fadeInUp 0.4s ease-out; }
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === Hero Banner === */
.blog-hero {
    background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-700) 40%, var(--primary-600) 100%);
    border-radius: 1rem;
    padding: 3rem 2.5rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}
.blog-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(200, 169, 81, 0.12) 0%, transparent 70%);
    border-radius: 50%;
}
.blog-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
}
.blog-hero h1 {
    color: #fff;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}
.blog-hero p {
    color: rgba(255,255,255,0.7);
    font-size: 1.05rem;
    position: relative;
    z-index: 1;
}
.blog-hero .hero-accent {
    display: inline-block;
    width: 3rem;
    height: 3px;
    background: var(--accent-500);
    border-radius: 2px;
    margin-bottom: 1rem;
}
.blog-hero .post-count-badge {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.9);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 1rem;
    border-radius: 9999px;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1rem;
    position: relative;
    z-index: 1;
}

/* === Filter Hero (Categories/Tags) === */
.filter-hero {
    background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-700) 40%, var(--primary-600) 100%);
    border-radius: 1rem;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}
.filter-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(200, 169, 81, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.filter-hero .hero-accent { display: inline-block; width: 3rem; height: 3px; background: var(--accent-500); border-radius: 2px; margin-bottom: 1rem; }
.filter-hero h1 { color: #fff; font-size: 1.75rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.5rem; position: relative; z-index: 1; }
.filter-hero h1 .tag-icon { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.15); border-radius: 0.5rem; padding: 0.45rem; display: inline-flex; }
.filter-hero h1 .tag-icon svg { width: 1.25rem; height: 1.25rem; color: var(--accent-400); }
.filter-hero p { color: rgba(255,255,255,0.7); font-size: 1rem; position: relative; z-index: 1; max-width: 600px; }
.filter-hero .breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: rgba(255,255,255,0.5); margin-bottom: 1rem; position: relative; z-index: 1; }
.filter-hero .breadcrumb a { color: rgba(255,255,255,0.7); transition: color 0.2s; }
.filter-hero .breadcrumb a:hover { color: var(--accent-400); }
.filter-hero .count-badge {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.9);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 1rem;
    border-radius: 9999px;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1rem;
    position: relative;
    z-index: 1;
}

/* === Article Card === */
.article-card {
    background: #fff;
    border-radius: 0.875rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    border: 1px solid rgba(0,0,0,0.04);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}
.article-card:hover {
    box-shadow: 0 10px 40px rgba(30, 58, 95, 0.1), 0 4px 12px rgba(0,0,0,0.06);
    transform: translateY(-2px);
    border-color: rgba(42, 95, 158, 0.12);
}
.article-card .card-image-wrapper {
    position: relative;
    overflow: hidden;
}
.article-card .card-image-wrapper img {
    transition: transform 0.5s ease;
}
.article-card:hover .card-image-wrapper img {
    transform: scale(1.04);
}
.article-card .card-image-wrapper .category-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--primary-800);
    color: rgba(255,255,255,0.95);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.3rem 0.85rem;
    border-radius: 0.3rem;
    backdrop-filter: blur(8px);
}
.article-card .card-body {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.article-card .card-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8rem;
    color: #94a3b8;
    margin-bottom: 0.875rem;
}
.article-card .card-meta svg {
    width: 0.9rem;
    height: 0.9rem;
}
.article-card .card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.35;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}
.article-card .card-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}
.article-card .card-title a:hover {
    color: var(--primary-600);
}
.article-card .card-excerpt {
    color: #64748b;
    font-size: 0.925rem;
    line-height: 1.65;
    flex: 1;
}
.article-card .card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid #f1f5f9;
}
.article-card .read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-600);
    transition: all 0.2s;
}
.article-card .read-more-link:hover {
    gap: 0.65rem;
    color: var(--primary-800);
}
.article-card .read-more-link svg {
    width: 1rem;
    height: 1rem;
    transition: transform 0.2s;
}
.article-card:hover .read-more-link svg {
    transform: translateX(2px);
}

/* === No Image Placeholder === */
.no-image-placeholder {
    background: linear-gradient(135deg, var(--primary-100) 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}
.no-image-placeholder svg {
    width: 3rem;
    height: 3rem;
    color: var(--primary-300);
}

/* === Tag Pills === */
.tag-pill {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary-700);
    background: var(--primary-100);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    border: 1px solid transparent;
    transition: all 0.2s;
}
.tag-pill:hover {
    background: var(--primary-200);
    border-color: var(--primary-300);
    color: var(--primary-800);
}
.tag-pill.active { background: var(--primary-600); color: #fff; border-color: var(--primary-600); }

/* === Sidebar === */
.sidebar-card {
    background: #fff;
    border-radius: 0.875rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
}
.sidebar-card-header {
    background: linear-gradient(135deg, var(--primary-800), var(--primary-700));
    padding: 1.1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.sidebar-card-header svg {
    width: 1.1rem;
    height: 1.1rem;
    color: var(--accent-400);
}
.sidebar-card-header h3 {
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.sidebar-card-body {
    padding: 1.25rem 1.5rem;
}
.sidebar-category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 0;
    border-bottom: 1px solid #f1f5f9;
    transition: all 0.15s;
}
.sidebar-category-item:last-child {
    border-bottom: none;
}
.sidebar-category-item a {
    color: #475569;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.sidebar-category-item a::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--primary-400);
    border-radius: 50%;
    transition: transform 0.2s;
}
.sidebar-category-item a:hover {
    color: var(--primary-600);
}
.sidebar-category-item a:hover::before {
    transform: scale(1.4);
}
.sidebar-category-item .count-badge {
    background: var(--primary-100);
    color: var(--primary-700);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.55rem;
    border-radius: 9999px;
}

/* === Pagination === */
.pagination-wrapper nav > div:first-child { display: none; }
.pagination-wrapper .relative.inline-flex {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.2s;
}

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: #fff;
    border-radius: 1rem;
    border: 2px dashed #e2e8f0;
}
.empty-state svg {
    width: 4rem;
    height: 4rem;
    color: #cbd5e1;
    margin: 0 auto 1rem;
}
.empty-state p {
    color: #94a3b8;
    font-size: 1.05rem;
}

/* === Subcategory Card === */
.subcategory-card {
    background: #fff;
    border-radius: 0.875rem;
    padding: 1.75rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
    border-left: 4px solid var(--primary-400);
    transition: all 0.3s ease;
}
.subcategory-card:hover {
    box-shadow: 0 8px 25px rgba(30, 58, 95, 0.1);
    transform: translateY(-2px);
    border-left-color: var(--accent-500);
}
.subcategory-card h3 { font-size: 1.05rem; font-weight: 700; color: #1e293b; margin-bottom: 0.5rem; }
.subcategory-card p { color: #64748b; font-size: 0.875rem; line-height: 1.6; }

/* === Post Detail Specifics === */
.post-hero-image {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(30, 58, 95, 0.12);
    margin-bottom: 2.5rem;
}
.post-hero-image img {
    width: 100%;
    height: 24rem;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.post-hero-image:hover img {
    transform: scale(1.02);
}

.post-header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e2e8f0;
}
.post-header .post-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--primary-100);
    color: var(--primary-700);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.35rem 0.85rem;
    border-radius: 0.35rem;
    margin-bottom: 1rem;
}
.post-header h1 {
    font-size: 2.25rem;
    font-weight: 800;
    color: #1e293b;
    line-height: 1.25;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
}
.post-header .post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #94a3b8;
    font-size: 0.875rem;
}
.post-header .post-meta svg {
    width: 1rem;
    height: 1rem;
}
.post-header .post-excerpt {
    font-size: 1.15rem;
    color: #64748b;
    line-height: 1.7;
    margin-top: 1.25rem;
    font-weight: 400;
}

.post-content-wrapper {
    background: #fff;
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
    margin-bottom: 2.5rem;
}
.post-content-wrapper .prose {
    color: #374151;
    line-height: 1.85;
}
.post-content-wrapper .prose h2 {
    color: var(--primary-800);
    font-weight: 700;
    margin-top: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-100);
}
.post-content-wrapper .prose h3 {
    color: var(--primary-700);
}
.post-content-wrapper .prose a {
    color: var(--primary-600);
    text-decoration: underline;
    text-decoration-color: var(--primary-200);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s;
}
.post-content-wrapper .prose a:hover {
    text-decoration-color: var(--primary-600);
}

.post-tags-section {
    background: #fff;
    border-radius: 1rem;
    padding: 1.75rem 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.post-tags-section .tags-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: #475569;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.post-tags-section .tags-label svg {
    width: 1rem;
    height: 1rem;
    color: var(--primary-400);
}

.related-section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
}
.related-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e2e8f0;
}
.related-card {
    background: #fff;
    border-radius: 0.875rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
    transition: all 0.3s ease;
}
.related-card:hover {
    box-shadow: 0 10px 30px rgba(30, 58, 95, 0.1);
    transform: translateY(-2px);
}
.related-card img {
    transition: transform 0.4s ease;
}
.related-card:hover img {
    transform: scale(1.04);
}
.related-card .related-card-body {
    padding: 1.25rem;
}
.related-card .related-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.5rem;
    line-height: 1.35;
}
.related-card .related-card-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}
.related-card .related-card-title a:hover {
    color: var(--primary-600);
}
.related-card .related-card-date {
    font-size: 0.8rem;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-600);
    margin-bottom: 2rem;
    transition: all 0.2s;
}
.back-link:hover {
    color: var(--primary-800);
    gap: 0.75rem;
}
.back-link svg {
    width: 1rem;
    height: 1rem;
}