/* Reset & vars  */
* { margin:0; padding:0; box-sizing:border-box; }
:root { --primary:#1e40af; --dark:#111827; --light:#f9fafb; --shadow:0 10px 25px rgba(0,0,0,0.1); }
body { font-family:'Inter',sans-serif; line-height:1.6; color:var(--dark); background:var(--light); }

/* Header: fixed, hide on scroll down */
header { position:fixed; top:0; left:0; right:0; background:rgba(255,255,255,0.95); backdrop-filter:blur(10px); z-index:100; transition:transform 0.3s ease; box-shadow:var(--shadow); }
header.hidden { transform:translateY(-100%); }
.nav-container { max-width:1200px; margin:0 auto; padding:1rem 2rem; display:flex; justify-content:space-between; align-items:center; }
.logo { font-size:1.5rem; font-weight:800; color:var(--primary); }
.nav-toggle { display:none; flex-direction:column; cursor:pointer; gap:4px; }
.nav-toggle span { width:25px; height:3px; background:var(--dark); transition:0.3s; }
.nav-links { display:flex; list-style:none; gap:2rem; }
.nav-links a { text-decoration:none; color:var(--dark); font-weight:500; transition:color 0.3s; }
.nav-links a:hover { color:var(--primary); }
.cta-btn { background:var(--primary); color:white; padding:0.75rem 1.5rem; border-radius:8px; transition:transform 0.2s; }
.cta-btn:hover { transform:translateY(-2px); }

/* Hero & sections */
.hero { background:linear-gradient(135deg,var(--primary),#3b82f6); color:white; padding:8rem 2rem 4rem; text-align:center; }
.hero h1 { font-size:3.5rem; margin-bottom:1rem; }
.hero p { font-size:1.25rem; max-width:600px; margin:0 auto; }
.cards { max-width:1200px; margin:4rem auto; padding:0 2rem; display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:2rem; }
.card { background:white; padding:2rem; border-radius:12px; box-shadow:var(--shadow); transition:transform 0.3s; }
.card:hover { transform:translateY(-5px); }
.card h3 { color:var(--primary); margin-bottom:1rem; }

/* Jobs/Programs: filters, search */
.filters { max-width:1200px; margin:2rem auto; padding:0 2rem; display:flex; gap:1rem; flex-wrap:wrap; }
.filters input, .filters select { padding:0.75rem; border:1px solid #d1d5db; border-radius:8px; }
.status-tag { padding:0.25rem 0.75rem; border-radius:20px; font-size:0.875rem; font-weight:500; }
.tag-open { background:#10b981; color:white; }
.tag-closing { background:#f59e0b; color:white; }

/* Forms */
.form-group { margin-bottom:1.5rem; }
label { display:block; margin-bottom:0.5rem; font-weight:500; }
input, textarea, select { width:100%; padding:0.75rem; border:1px solid #d1d5db; border-radius:8px; }
.submit-btn { background:var(--primary); color:white; padding:1rem 2rem; border:none; border-radius:8px; cursor:pointer; font-size:1rem; transition:0.3s; width:100%; }

/* Footer */
footer { background:var(--dark); color:white; padding:3rem 2rem 1rem; text-align:center; }
.footer-links { display:flex; justify-content:center; gap:2rem; list-style:none; margin-bottom:1rem; }
.footer-links a { color:#9ca3af; text-decoration:none; }

/* Mobile */
@media (max-width:768px) {
  .nav-toggle { display:flex; }
  .nav-links { position:fixed; top:70px; left:-100%; width:100%; height:calc(100vh-70px); background:white; flex-direction:column; padding:2rem; transition:left 0.3s; box-shadow:var(--shadow); }
  .nav-links.open { left:0; }
  .hero h1 { font-size:2.5rem; }
  .filters { flex-direction:column; }
}

/* Animations */
@keyframes fadeInUp { from { opacity:0; transform:translateY(30px); } to { opacity:1; transform:translateY(0); } }
.card { animation:fadeInUp 0.6s ease forwards; }