/*
Theme Name: Kubet SEO (SVG) + Posts
Theme URI: https://example.com/kubet-seo
Author: ChatGPT
Description: Theme Kubet SEO với hero SVG + lưới bài viết bên dưới, layout thương mại, tối ưu SEO/OG/JSON-LD.
Version: 2.1.0
Text Domain: kubet-seo
*/
:root{--brand:#0b67f5;--brand-600:#0a59d3;--brand-700:#0848a5;--ink:#0f172a;--muted:#6b7280;--surface:#ffffff;--line:#e5e7eb;--bg:#f8fafc}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.topbar{background:linear-gradient(90deg,#063d86,#0b67f5);color:#fff;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;padding:6px 0}
.topbar .actions a{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:8px;background:#ffffff1a;color:#fff}
.topbar .actions a:hover{background:#ffffff2b;text-decoration:none}
.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px}
.brand__logo{width:40px;height:40px;border-radius:10px;overflow:hidden;display:inline-block}
.brand__name{font-weight:800;letter-spacing:.2px}
.nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.nav a{padding:8px 10px;border-radius:10px;color:#111827}
.nav a:hover{background:#f3f4f6;text-decoration:none}
.cta{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:999px;background:var(--brand);color:#fff;font-weight:700;box-shadow:0 10px 30px rgba(11,103,245,.35)}
.cta:hover{background:var(--brand-600);text-decoration:none}
.hero{background:radial-gradient(1200px 500px at 50% -10%, #dbeafe 10%, transparent 60%),linear-gradient(180deg,#fff 0%,#f8fbff 60%);border-bottom:1px solid var(--line)}
.hero-inner{padding:28px 0 14px}
.hero-banner{border-radius:18px;overflow:hidden;background:#0d1b2a;color:#fff;background-image:linear-gradient(90deg,#0e1f3a,#0b67f5);min-height:220px;display:grid;grid-template-columns:1.1fr .9fr;gap:10px;align-items:center;padding:18px;border:1px solid #0b67f533}
.hero-banner h1{font-size:26px;line-height:1.2;margin:0 0 10px}
.hero-banner p{margin:0 0 16px;color:#e5e7eb}
.banner-art{display:flex;gap:10px;justify-content:flex-end;align-items:flex-end}
.banner-art img{height:160px;filter:drop-shadow(0 10px 30px rgba(0,0,0,.3))}
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:14px 0 4px}
.tile{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;text-align:center;transition:transform .15s ease, box-shadow .15s ease}
.tile:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(2,6,23,.08)}
.tile img{width:84px;height:84px;display:block;margin:2px auto 8px}
.tile h3{margin:0;font-size:16px;letter-spacing:.3px}
.tile small{display:block;color:var(--muted)}
.strip{background:#0b203f;color:#bcd7ff;padding:10px 0;border-top:1px solid #0a2a5f}
.strip .container{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.badges{display:flex;gap:10px;flex-wrap:wrap}
.badge{padding:6px 10px;background:#113b74;color:#fff;border:1px solid #285aa2;border-radius:999px;font-size:12px}
/* Posts grid */
.posts{padding:28px 0 36px}
.posts h2{margin:0 0 14px}
.grid.posts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.card__img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#f3f4f6}
.card__body{padding:14px}
.card__title{font-weight:700;margin:0 0 6px}
.card__meta{color:var(--muted);font-size:13px;margin:0 0 8px}
.card__excerpt{color:#374151}
.pagination{display:flex;justify-content:center;gap:10px;margin-top:18px}
.pagination a{border:1px solid var(--line);padding:8px 12px;border-radius:10px;background:#fff}
.footer{border-top:1px solid var(--line);padding:24px 0;background:#fff;color:#6b7280}
@media (max-width:1024px){.tiles{grid-template-columns:repeat(2,1fr)}.grid.posts-grid{grid-template-columns:repeat(2,1fr)}.hero-banner{grid-template-columns:1fr}.banner-art{justify-content:center}}
@media (max-width:600px){.nav{gap:10px}.cta{padding:10px 14px}.tile img{width:68px;height:68px}.hero-banner h1{font-size:22px}.grid.posts-grid{grid-template-columns:1fr}}