:root{
  --bg:#ffffff; --fg:#0b1220; --muted:#556680; --accent:#0ea5a4; --accent2:#2563eb;
  --card:#f7fbff; --border:#e6eef8;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial; color:var(--fg); background:var(--bg); line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:28px}
header{border-bottom:1px solid var(--border);position:sticky;top:0;background:linear-gradient(180deg,#ffffff,rgba(255,255,255,0.97));backdrop-filter:saturate(120%) blur(4px);z-index:20}
.header-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:14px}
.logo{width:44px;height:44px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;font-weight:800;color:#001b0e}
nav a{margin:0 10px;color:var(--muted);text-decoration:none;font-weight:600}
.kicker{display:inline-block;color:var(--accent2);font-weight:700}
.hero{padding:36px 0}
h1{font-size:34px;margin:6px 0}
h2{font-size:22px;margin:8px 0}
p.lead{color:var(--muted);max-width:900px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;margin:12px 0}
.grid{display:grid;gap:18px}
.two{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.article-meta{font-size:14px;color:var(--muted);margin-bottom:8px}
.author{display:inline-flex;align-items:center;gap:10px}
.footer{border-top:1px solid var(--border);margin-top:38px;padding-top:18px;color:var(--muted);font-size:14px}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#001b0e;font-weight:700;text-decoration:none}
.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:10px}
.table{width:100%;border-collapse:collapse;margin-top:12px}
.table th,.table td{border:1px solid var(--border);padding:10px;text-align:left;background:white}
@media (max-width:720px){
  h1{font-size:26px}
  .header-row{flex-direction:column;align-items:flex-start;gap:10px}
  nav a{margin:6px 8px}
}