:root {
  --bg: #f5f8ff;
  --primary: #2563eb;
  --dark: #0f172a;
  --muted: #475569;
  --accent: #ff6b35;
  --card: #ffffff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: linear-gradient(180deg, #eef4ff 0%, #f9fbff 100%);
  color: var(--dark);
}
.container { width: min(1120px, 92%); margin: 0 auto; }
.top-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,.85);
  border-bottom: 1px solid #e5ecff;
}
.nav-wrap { display:flex; align-items:center; justify-content:space-between; padding: 14px 0; }
.logo { font-weight:800; color: var(--dark); text-decoration:none; font-size:1.4rem; }
.logo span { color: var(--primary); }
.nav-links { display:flex; list-style:none; gap:1.4rem; margin:0; padding:0; }
.nav-links a { text-decoration:none; color:#1e293b; font-weight:600; }
.btn { background: var(--accent); color:#fff; border:none; padding: 12px 18px; border-radius: 12px; font-weight:700; text-decoration:none; display:inline-block; }
.btn-outline { background:transparent; color:var(--primary); border:2px solid var(--primary); }
.btn-ghost { background:#e8f0ff; color:var(--primary); }
.hero { padding: 58px 0 42px; }
.hero-grid { display:grid; grid-template-columns: 1.1fr .9fr; align-items:center; gap: 2rem; }
.badge { color:var(--primary); font-weight:700; }
h1 { font-size: clamp(2rem, 4vw, 3.3rem); line-height:1.15; margin:10px 0; }
h1 span { color:var(--primary); }
.hero-copy p { color: var(--muted); font-size:1.05rem; }
.hero-cta { margin-top: 1.4rem; display:flex; gap:.8rem; flex-wrap:wrap; }
.photo-card { border-radius: 24px; overflow:hidden; box-shadow:0 20px 40px rgba(37,99,235,.2); }
.photo-card img { width:100%; height:100%; object-fit:cover; display:block; }
.section-head { margin: 40px 0 22px; }
.section-head h2, .usp h2, .why h2, .boards h2 { font-size: 2rem; margin:0 0 8px; }
.class-grid { display:grid; grid-template-columns: repeat(4, 1fr); gap:1rem; }
.class-card { background:var(--card); border:1px solid #e5ecff; border-radius:18px; padding:18px; box-shadow:0 8px 20px rgba(15,23,42,.04); }
.class-card h3 { margin:0; }
.track { color:#64748b; margin:6px 0 12px; }
.chips { display:flex; gap:.5rem; flex-wrap:wrap; margin-bottom:16px; }
.chips a { background:#f8fbff; border:1px solid #e7ecff; color:#0f172a; padding:7px 10px; border-radius:10px; text-decoration:none; font-size:.9rem; }
.small { padding:10px 14px; font-size:.9rem; }
.usp { padding: 60px 0 40px; }
.usp-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; }
.usp-card { background:#fff; border-radius:16px; padding:18px; border:1px solid #e9efff; }
.why { padding: 24px 0 60px; }
.why-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; }
.why-grid > div { background:#fff; border:1px solid #e9efff; border-radius:14px; padding:16px; }
.boards { background:#0f172a; color:#e2e8f0; padding:44px 0; }
.footer { padding: 20px 0; text-align:center; color:#64748b; font-size:.95rem; }
@media (max-width: 980px) {
  .hero-grid, .class-grid, .usp-grid, .why-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display:none; }
  .hero-grid, .class-grid, .usp-grid, .why-grid { grid-template-columns: 1fr; }
}