:root{
  --blue:#1069c6;
  --blue-dark:#0e57a4;
  --green:#2aa54a;
  --text:#0f2233;
  --muted:#6b7b8b;
  --bg:#f6f8fb;
  --card:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg)}
a{color:var(--blue-dark);text-decoration:none}
a:hover{text-decoration:underline}
header{position:sticky;top:0;z-index:3000;background:var(--blue);color:#fff}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1180px;margin:0 auto;padding:10px 16px}
.topbar img{height:72px}
nav a{color:#fff;margin:0 12px;font-weight:600}
.cta{background:var(--green);color:#fff;padding:10px 16px;border-radius:24px;font-weight:700;display:inline-block}
.cta:hover{opacity:.9;text-decoration:none}
.hero{position:relative;overflow:hidden}
.hero video{width:100%;height:68vh;object-fit:cover;display:block;z-index:0;position:relative}
.hero .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.25),rgba(0,0,0,0) 40%);z-index:1}
.container{max-width:1180px;margin:0 auto;padding:32px 16px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-top:24px}
.card{background:var(--card);border-radius:16px;box-shadow:0 10px 24px rgba(0,0,0,.08);padding:20px}
.card h3{font-family:Georgia,serif;color:#1a7330;margin:.2rem 0 8px}
.card p{color:var(--muted);margin:0 0 12px}
h2.section{font-family:Georgia,serif;font-size:2rem;margin:24px 0 12px}
.arch-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-top:6px}
.arch{background:var(--card);border-radius:22px;box-shadow:0 14px 28px rgba(0,0,0,.10);overflow:hidden}
.arch .arch-top{height:210px;border-top-left-radius:999px;border-top-right-radius:999px;overflow:hidden;border-bottom:1px solid rgba(0,0,0,.06)}
.arch .arch-top img{width:100%;height:100%;object-fit:cover;display:block}
.arch .body{padding:18px}
.arch .body h4{font-family:Georgia,serif;margin:.2rem 0 6px;color:#12753a}
.arch .body p{color:var(--muted);margin:0 0 10px}
.arch .learn{display:inline-block;background:#eef6ff;border-radius:16px;padding:8px 12px;font-weight:600}
.footer{background:#f0f3f8;margin-top:32px}
.footer .cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.footer .logo{height:56px}
.footer small{color:var(--muted)}
/* Dropdown */
.dropdown{position:relative;display:inline-block;z-index:4000}
.dropdown-toggle{cursor:pointer;color:#fff}
.dropdown .menu{display:none;position:absolute;top:100%;left:0;background:#fff;color:var(--text);min-width:240px;border-radius:10px;box-shadow:0 14px 28px rgba(0,0,0,.18);padding:8px;z-index:5000}
.dropdown .menu a{display:block;color:var(--text);padding:10px 12px;border-radius:8px}
.dropdown .menu a:hover{background:#eef6ff}
/* Hover open for desktop */
.dropdown:hover .menu{display:block}
/* Social icons */
.social{margin-top:12px;display:flex;gap:12px}
.social a{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:#e9eef6;color:#1069c6}
.social a:hover{background:#dbe7f7}
/* Mobile: keep nav visible */
@media (max-width:800px){
  .hero video{height:48vh}
  .topbar{flex-wrap:wrap}
  nav{display:flex !important; flex-wrap:wrap; gap:10px; width:100%; margin-top:8px}
  nav a{padding:8px 10px; background:#0e57a4; border-radius:8px}
  .cta{margin-left:auto}
}