/* NIT page theme (teaching focus, fresh green) */
:root{
  --accent:#4aa34b; --accent-2:#7ecb7e; --dark:#103221;
  --card:#ffffff; --shadow:0 8px 24px rgba(0,0,0,.1);
}
*{box-sizing:border-box} html,body{margin:0;padding:0;font-family:Poppins,system-ui,Segoe UI,Roboto,Arial,sans-serif;background:#f7faf8;color:#233}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.topbar{background:#0c2e1d;position:sticky;top:0;z-index:10}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;padding:10px 20px}
.brand{display:flex;align-items:center;gap:10px;color:#e9f4eb;text-decoration:none}
.brand-mark{width:36px;height:36px;border-radius:50%;background:#4aa34b}
.brand-text{font-weight:800}
.brand-sub{opacity:.8;font-size:12px}
.nav a{color:#e9f4eb;text-decoration:none;padding:8px 10px;border-radius:10px}
.nav a:hover,.nav a.active{background:rgba(255,255,255,.08)}

.hero{position:relative;min-height:52vh;display:grid;place-items:center;background:#134528 url('../assets/hero-bg.jpg') center/cover no-repeat}
.hero .overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,40,24,.55),rgba(8,40,24,.85))}
.hero-inner{position:relative;color:#fff;text-align:center;padding:40px 20px}
.hero h1{margin:0 0 10px;font-size:40px}
.lead{max-width:760px;margin:0 auto 16px;opacity:.95}
.cta{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:12px 20px;border-radius:999px;font-weight:600;box-shadow:var(--shadow)}
.cta:hover{background:var(--accent-2)}

.card{background:var(--card);box-shadow:var(--shadow);border-radius:16px;padding:24px;margin:26px 0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.muted{color:#6a8c7e}
.pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{background:#edf8ee;color:#134528;text-decoration:none;padding:10px 14px;border-radius:999px;font-weight:600}
.pill:hover{background:#e1f3e2}
.footer{background:#0c2e1d;color:#e9f4eb;margin-top:24px}
.footer .wrap{padding:20px}
@media(max-width:900px){.grid3{grid-template-columns:1fr}.hero h1{font-size:32px}}