:root{
  --container:1100px;
  --brand:#0b3b73;
  --accent:#ff7b2d;
  --muted:#6b7280;
  --bg:#ffffff;
  --card:#ffffff;
  --shadow: 0 6px 18px rgba(11,59,115,0.06);
  --radius:12px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;
  font-size:16px;
  color:#111827;
  background:var(--bg);
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 18px;
}

/* Accessibility helpers */
.visually-hidden{position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap;border:0;padding:0;margin:-1px}

/* Skip link */
.skip-link{
  position:fixed;left:12px;top:12px;background:#0b3b73;color:#fff;padding:8px 12px;border-radius:6px;z-index:999;transform:translateY(-120%);transition:transform .18s;
}
.skip-link:focus{transform:none}

/* Topbar */
.topbar{background:#f97316;color:#fff;font-size:14px;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:6px 18px}

/* Header */
.header-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo img{display:block;max-height:48px}

/* Navigation */
.main-nav{display:flex;align-items:center}
.menu-toggle{display:none;background:transparent;border:0;font-size:20px;padding:8px;cursor:pointer}
.nav-list{list-style:none;display:flex;gap:18px}
.nav-list a{color:#0b3b73;text-decoration:none;font-weight:600;padding:8px;border-radius:6px}
.nav-list a:hover{background:#f3f4f6}

/* Announcement */
.announcement{background:#b91c1c;color:#fff;padding:8px;font-size:14px;text-align:center}

/* HERO */
.hero-section{position:relative;overflow:hidden}
.hero-bg{width:100%;height:auto;display:block;filter:contrast(.9) brightness(.6);object-fit:cover}
.hero-inner{position:relative;padding:48px 0;display:grid;align-items:center}
.hero-content{position:absolute;left:6%;top:30%;color:#fff;max-width:640px}
.hero-content h1{font-size:2.2rem;margin-bottom:8px;line-height:1.05}
.lead{color:#f8fafc;margin-bottom:16px}
.btn{display:inline-block;padding:.6rem 1rem;border-radius:8px;text-decoration:none;font-weight:600}
.btn-primary{background:var(--accent);color:#fff}
.btn-outline{border:2px solid rgba(255,255,255,.85);color:#fff;padding:.45rem .9rem;background:transparent}
.btn.whatsapp{background:#1f9b3a;color:#fff}

/* STATS */
.stats{background:linear-gradient(180deg,#0b3b73,#184a86);color:#fff;padding:22px 0}
.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;align-items:center}
.stat{text-align:center}
.stat-number{font-size:1.2rem;font-weight:700;margin-top:8px}
.stat-label{font-size:.85rem;color:rgba(255,255,255,.9)}

/* DEPARTMENTS */
.departments{padding:48px 0;background:#fafafa}
.departments h2{text-align:center;font-size:1.6rem;margin-bottom:4px}
.sub{text-align:center;color:var(--muted);margin-bottom:24px}
.dept-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;list-style:none;padding:0;margin:0}
.dept-card{background:var(--card);padding:20px;border-radius:12px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;text-align:center}
.dept-title{margin-top:12px;font-weight:600}

/* CTA band */
.cta-band{background:linear-gradient(90deg,#1e56a8,#0b3b73);color:#fff;padding:36px 0;text-align:center}
.cta-inner h3{font-size:1.4rem;margin-bottom:6px}
.cta-buttons{margin-top:12px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{background:#08233f;color:#fff;padding:30px 0}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
.footer-col h4, .footer-col h3{color:#ffd05b}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);margin-top:18px;padding-top:18px;text-align:center}

/* Responsive */
@media (max-width:900px){
  .hero-content{left:6%;top:22%}
  .stats-grid{grid-template-columns:repeat(3,1fr)}
  .dept-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:640px){
  .menu-toggle{display:block}
  .nav-list{position:fixed;top:74px;right:0;background:#fff;border-radius:8px;padding:12px;flex-direction:column;box-shadow:var(--shadow);display:none}
  .nav-list.open{display:flex}
  .nav-list a{color:var(--brand)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .dept-grid{grid-template-columns:repeat(2,1fr)}
  .hero-content h1{font-size:1.5rem}
  .topbar .container{flex-direction:column;gap:6px}
}