/* ── Reset & tokens ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --blue:     #0b63ce;
    --blue-d:   #094fa5;
    --blue-l:   #e8f1fc;
    --yellow:   #ffd24a;
    --ink:      #16202c;
    --ink-2:    #51606e;
    --ink-3:    #8593a1;
    --bg:       #f4f6f9;
    --line:     #e3e8ee;
    --white:    #ffffff;
    --red:      #e02424;
    --font:     -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --max:      1200px;
}

html { font-size: 16px; }
body { font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: color .12s; }
a:hover { color: var(--blue); }
img { display: block; max-width: 100%; height: auto; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* ── Top bar ── */
.topbar { background: var(--blue-d); color: #cfe0f5; font-size: .8rem; }
.topbar-inner { display: flex; flex-wrap: wrap; gap: 1.25rem; align-items: center; justify-content: center; padding: .35rem 0; }
.topbar-item { display: inline-flex; align-items: center; gap: .35rem; }
.topbar-item svg { width: 14px; height: 14px; }

/* ── Header ── */
.site-header { background: var(--white); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.header-top { display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; padding: .7rem 0; }
.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand-logo { width: 42px; height: 42px; flex: none; }
.brand-logo img, .brand-logo svg { width: 100%; height: 100%; }
.site-name { line-height: 1; }
.site-name a { color: var(--ink); }
.site-name .b1 { display: block; font-size: 1.35rem; font-weight: 800; letter-spacing: -.01em; }
.site-name .b2 { display: block; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .12em; color: var(--blue); }
.site-logo img { max-height: 42px; width: auto; }

.search-form { display: flex; align-items: stretch; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; min-width: 210px; }
.search-form input { border: 0; background: transparent; font: inherit; font-size: .88rem; padding: .45rem .7rem; width: 100%; outline: none; }
.search-form button { border: 0; cursor: pointer; width: 38px; background: var(--blue); color: #fff; display: grid; place-items: center; flex: none; }
.search-form button:hover { background: var(--blue-d); }

/* ── Nav ── */
.site-nav { background: var(--white); border-bottom: 2px solid var(--blue); }
.nav-inner { display: flex; flex-wrap: wrap; gap: .15rem; }
.site-nav a { font-size: .85rem; font-weight: 700; color: var(--ink-2); padding: .6rem .85rem; white-space: nowrap; border-bottom: 3px solid transparent; }
.site-nav a:hover { color: var(--blue); border-bottom-color: var(--blue); }

/* ── Layout ── */
.site-main { padding: 1.75rem 0 2.5rem; }
.main-grid { display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 2rem; }

/* ── Category pill ── */
.article-category { display: inline-block; font-size: .68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; color: var(--blue-d); background: var(--blue-l); padding: .22rem .55rem; border-radius: 4px; }

/* ── Featured ── */
.featured-article { background: var(--white); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-bottom: 1.5rem; }
.featured-image { display: block; aspect-ratio: 16/8; overflow: hidden; background: var(--blue-l); }
.featured-image img { width: 100%; height: 100%; object-fit: cover; }
.featured-article > .article-category { margin: 1.1rem 1.2rem 0; }
.featured-article .article-title { font-size: 1.75rem; font-weight: 800; line-height: 1.18; letter-spacing: -.01em; margin: .55rem 1.2rem .45rem; }
.featured-article .article-excerpt { color: var(--ink-2); font-size: 1rem; margin: 0 1.2rem; }
.featured-article .article-meta { margin: .85rem 1.2rem 1.2rem; }

.article-meta { font-size: .78rem; color: var(--ink-3); display: flex; gap: .7rem; flex-wrap: wrap; align-items: center; }
.article-meta .byline { color: var(--blue-d); font-weight: 600; }
.read-more { display: inline-flex; align-items: center; gap: .35rem; margin: 0 1.2rem 1.2rem; background: var(--blue); color: #fff; font-weight: 700; font-size: .85rem; padding: .5rem 1.1rem; border-radius: 7px; }
.read-more:hover { color: #fff; background: var(--blue-d); }

/* ── Cards grid ── */
.articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px,1fr)); gap: 1.25rem; }
.article-card { background: var(--white); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .15s; }
.article-card:hover { box-shadow: 0 6px 20px rgba(11,99,206,.10); }
.card-image { display: block; aspect-ratio: 16/10; overflow: hidden; background: var(--blue-l); }
.card-image img { width: 100%; height: 100%; object-fit: cover; }
.article-card .card-body { padding: .85rem 1rem 1rem; display: flex; flex-direction: column; gap: .45rem; flex: 1; }
.article-card .article-title { font-size: 1.02rem; font-weight: 700; line-height: 1.3; }
.article-card .article-title a:hover { color: var(--blue); }
.article-card .article-excerpt { font-size: .85rem; color: var(--ink-2); flex: 1; }
.article-card .article-meta { font-size: .72rem; }

/* ── Pagination ── */
.pagination { display: flex; gap: .6rem; justify-content: center; margin-top: 2rem; }
.pagination a { background: var(--white); border: 1px solid var(--line); color: var(--blue-d); font-weight: 700; font-size: .85rem; padding: .5rem 1.1rem; border-radius: 7px; }
.pagination a:hover { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ── Sidebar ── */
.sidebar { display: flex; flex-direction: column; gap: 1.25rem; }
.sidebar-block { background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 1.1rem 1.2rem; }
.sidebar-title { font-size: 1rem; font-weight: 800; margin-bottom: .8rem; padding-bottom: .55rem; border-bottom: 2px solid var(--blue); }
.sidebar-list { list-style: none; }
.sidebar-list li { padding: .55rem 0; border-bottom: 1px solid var(--line); }
.sidebar-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.sidebar-list li:first-child { padding-top: 0; }
.item-title { font-size: .92rem; font-weight: 600; line-height: 1.3; }
.item-title a:hover { color: var(--blue); }
.item-meta { font-size: .72rem; color: var(--ink-3); margin-top: .15rem; }

/* ── Single article ── */
.article-single { background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 1.75rem 2rem 2.25rem; }
.breadcrumbs { font-size: .78rem; color: var(--ink-3); margin-bottom: 1rem; display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; }
.breadcrumbs a:hover { color: var(--blue); }
.breadcrumbs .sep { color: var(--line); }
.breadcrumbs .current { color: var(--ink-2); }
.article-single .article-title { font-size: 2rem; font-weight: 800; line-height: 1.15; letter-spacing: -.01em; margin: .5rem 0 .8rem; }
.article-single > .article-meta { margin-bottom: 1.4rem; }
.article-hero { margin: 0 0 1.5rem; border-radius: 10px; overflow: hidden; }
.article-hero img { width: 100%; }
.article-body { font-size: 1.07rem; line-height: 1.75; color: var(--ink); }
.article-body p { margin: 0 0 1.15rem; }
.article-body h2 { font-size: 1.45rem; font-weight: 800; margin: 1.8rem 0 .8rem; }
.article-body h3 { font-size: 1.2rem; font-weight: 700; margin: 1.4rem 0 .6rem; }
.article-body ul, .article-body ol { margin: 0 0 1.15rem 1.25rem; }
.article-body li { margin-bottom: .45rem; }
.article-body a { color: var(--blue); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.article-body blockquote { border-left: 4px solid var(--blue); background: var(--blue-l); padding: .9rem 1.15rem; border-radius: 0 8px 8px 0; margin: 0 0 1.15rem; }
.article-body img { border-radius: 8px; margin: 1.15rem 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 0 0 1.15rem; font-size: .94rem; }
.article-body th { background: var(--blue); color: #fff; padding: .55rem .7rem; text-align: left; }
.article-body td { border: 1px solid var(--line); padding: .55rem .7rem; }

/* ── Related ── */
.related-list { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(190px,1fr)); gap: .9rem; margin: 1rem 0 1.75rem; }
.article-single h2 { font-size: 1.3rem; font-weight: 800; margin-top: 1.75rem; }
.related-list li { background: var(--bg); border-radius: 8px; padding: .8rem .95rem; font-weight: 600; font-size: .92rem; line-height: 1.3; }
.related-list li:hover { background: var(--blue-l); }

/* ── Footer ── */
.site-footer { background: var(--ink); color: #aeb9c5; margin-top: 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; padding: 2.5rem 0 1.75rem; }
.footer-brand .site-name a { color: #fff; }
.footer-brand .site-name .b2 { color: var(--yellow); }
.footer-brand p { font-size: .88rem; color: #8a97a5; max-width: 34ch; margin-top: .5rem; }
.footer-nav-title { font-size: .8rem; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; color: #fff; margin-bottom: .8rem; }
.footer-nav { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.footer-nav a { font-size: .88rem; color: #aeb9c5; }
.footer-nav a:hover { color: var(--yellow); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .7rem; font-size: .8rem; color: #7e8b99; padding: 1rem 0 2rem; border-top: 1px solid rgba(255,255,255,.1); }
.footer-legal { display: inline-flex; gap: .4rem 1.1rem; flex-wrap: wrap; }

.search-heading { font-size: 1.5rem; font-weight: 800; margin-bottom: 1.25rem; }

@media (max-width: 980px) {
    .main-grid { grid-template-columns: 1fr; }
    .sidebar { flex-direction: row; flex-wrap: wrap; }
    .sidebar-block { flex: 1 1 250px; }
}
@media (max-width: 640px) {
    .header-top { flex-wrap: wrap; }
    .search-form { order: 3; width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .featured-article .article-title { font-size: 1.4rem; }
    .article-single { padding: 1.3rem 1.15rem 1.6rem; }
    .article-single .article-title { font-size: 1.55rem; }
}