:root{
  --bg:#ffffff; --text:#0f172a; --muted:#475569;
  --brand:#2563eb; --brand-2:#10b981; --surface:#f1f5f9; --border:#e2e8f0; --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}
img{max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none} a:hover{text-decoration:underline}
.hidden{position:absolute;left:-9999px}
.btn{display:inline-block;padding:.7rem 1rem;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--text)}
.btn.primary{background:var(--brand);color:#fff;border-color:transparent}
.btn + .btn{margin-left:.5rem}
.site-header{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem}
.site-header .brand{display:flex;align-items:center;gap:.6rem;color:var(--text);font-weight:700;text-decoration:none}
.site-header nav ul{display:flex;gap:1rem;list-style:none;margin:0;padding:0}
.site-header nav a{padding:.4rem .6rem;border-radius:8px;color:var(--muted)}
.site-header nav a.active,.site-header nav a:hover{background:var(--surface);color:var(--text)}
#menuToggle{display:none;border:1px solid var(--border);background:#fff;border-radius:8px;padding:.35rem .6rem}
.hero{min-height:68vh;background-image:linear-gradient(120deg, rgba(37,99,235,.12), rgba(16,185,129,.12)), url('assets/hero.jpg'); background-size:cover; background-position:center; display:flex; align-items:center}
.hero-inner{max-width:900px;margin:0 auto;padding:6rem 1rem;text-align:center}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);margin:.2rem 0}
.hero p{color:var(--muted);font-size:clamp(1rem,2.4vw,1.15rem)}
.pillars,.highlights{padding:3rem 1rem;max-width:1100px;margin:0 auto}
.pillars h2,.highlights h2{font-size:1.8rem;margin-bottom:1rem}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.card{background:var(--surface);border:1px solid var(--border);padding:1rem;border-radius:var(--radius)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.tile{border:1px solid var(--border);border-radius:var(--radius);padding:1rem;background:#fff}
.page{max-width:900px;margin:0 auto;padding:2rem 1rem}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.event-list .event,.program{border:1px solid var(--border);border-radius:var(--radius);padding:1rem;margin:1rem 0;background:#fff}
.logos{gap:1rem}
.logo-card{display:flex;align-items:center;justify-content:center;border:1px dashed var(--border);padding:2rem;border-radius:var(--radius);background:#fff;color:var(--muted)}
.contact .row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
input,textarea{width:100%;padding:.75rem;border:1px solid var(--border);border-radius:10px;background:#fff}
label{display:block;font-weight:600;margin:.5rem 0}
.note{color:var(--muted);font-size:.9rem}
.site-footer{margin-top:4rem;border-top:1px solid var(--border);background:#fff}
.site-footer .footer-cols{max-width:1100px;margin:0 auto;padding:2rem 1rem;display:grid;grid-template-columns:2fr 1fr 1.5fr;gap:1rem}
.site-footer .legal{text-align:center;border-top:1px solid var(--border);padding:1rem;color:var(--muted)}
.list-plain{list-style:none;padding:0;margin:0}
.list-plain li{margin:.25rem 0}
@media (max-width:900px){
  .cards{grid-template-columns:repeat(2,1fr)} .grid-3{grid-template-columns:1fr 1fr} .grid-2{grid-template-columns:1fr}
  .site-footer .footer-cols{grid-template-columns:1fr}
}
@media (max-width:700px){
  #menuToggle{display:block} .site-header nav{display:none;position:absolute;top:56px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);}
  .site-header nav.open{display:block} .site-header nav ul{flex-direction:column;padding:1rem}
}