:root{
  --bg:#F9FAFB;
  --panel:#FFFFFF;
  --muted:#667085;
  --txt:#1A1A1A;
  --brand:#0B3954; /* Nile blue */
  --sand:#D9C9A3;  /* Heritage sand */
  --gold:#E9B949;  /* Sun gold */
  --accent:#2F9E44;
  --radius:16px;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
  --border: 1px solid #E5E7EB;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--txt);
  background:var(--bg);
  line-height:1.6;
}
h1,h2,h3{font-family:"Playfair Display", Georgia, serif;line-height:1.2;margin:0 0 .5rem;color:#0B3954}
p{margin:.4rem 0 1rem}
a{color:#0B3954;text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1120px,92%);margin-inline:auto}
.section{padding:64px 0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.9);backdrop-filter:blur(6px);
  border-bottom: var(--border);
}
.header-top{
  background:#F3F4F6;border-bottom:var(--border);font-size:.9rem;color:#344054;
}
.header-top .container{display:flex;align-items:center;gap:10px;justify-content:space-between;padding:6px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;align-items:center;gap:10px}
.brand small{display:block;color:#475467;font-size:.8rem;margin-top:-6px}
.nav-toggle{display:none;background:#fff;border:var(--border);color:#0B3954;padding:.45rem .6rem;border-radius:10px;cursor:pointer}
.nav ul, .nav ul li{list-style:none;padding:0;margin:0}
.nav ul{display:flex;gap:14px;align-items:center}
.nav a{padding:.45rem .6rem;border-radius:10px}
.nav a.btn{color:#0f1115}
.theme-toggle{background:#fff;border:var(--border);color:#0B3954;padding:.45rem .6rem;border-radius:10px;cursor:pointer}

.btn{background:var(--gold);color:#0b0e14;padding:.75rem 1rem;border-radius:12px;border:0;display:inline-block;font-weight:650;box-shadow:var(--shadow)}
.btn:hover{text-decoration:none;filter:brightness(1.02)}
.btn-primary{background:var(--gold);color:#0b0e14}
.btn-secondary{background:var(--brand);color:#fff}
.btn-outline{background:transparent;border:2px solid var(--brand);color:var(--brand)}

.hero{padding:64px 0 24px;background:
  radial-gradient(1200px 600px at 80% -10%, rgba(233,185,73,.12), transparent 60%),
  radial-gradient(1000px 600px at 0% -30%, rgba(11,57,84,.12), transparent 60%);
}
.hero-inner{display:grid;grid-template-columns: 1.05fr .95fr;gap:32px;align-items:center}
.hero h1{font-size:clamp(2rem, 2.2rem + 1vw, 3rem);color:#0B3954}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.media-frame{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:var(--border)}
.overlay-wave{position:absolute;inset:auto 0 0 0;height:36%;background:linear-gradient(180deg, rgba(233,185,73,0) 0%, rgba(233,185,73,.25) 100%)}

.section-head{max-width:860px;margin:0 auto 28px;text-align:center}
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.about-card{background:#fff;border:var(--border);padding:18px;border-radius:16px;box-shadow:var(--shadow)}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:var(--border);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.card.mini{padding:16px}
.card-body{padding:14px}
.card h3{margin:.2rem 0 .4rem;font-size:1.15rem;color:#0B3954}
.card-link{font-weight:600}

.pill-nav{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:8px 0 18px}
.pill{border:1px solid #D0D5DD;background:#fff;color:#0B3954;padding:.35rem .7rem;border-radius:999px;cursor:pointer}
.pill.active{background:#0B3954;color:#fff;border-color:#0B3954}

.map-wrap{background:#fff;border:var(--border);border-radius:20px;box-shadow:var(--shadow);padding:10px}
#nileMap{height:480px;border-radius:14px}
.map-legend{display:flex;gap:16px;align-items:center;justify-content:center;margin-top:10px;font-size:.95rem;color:#475467}
.legend-dot{display:inline-block;width:10px;height:10px;border-radius:50%}
.legend-dot.story{background:#E9B949}
.legend-dot.research{background:#2F9E44}
.legend-dot.heritage{background:#D9C9A3}

.cta{background:#FFFFFF;border-top:var(--border);border-bottom:var(--border)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}

.partners-logos{display:grid;grid-template-columns:repeat(3,120px);gap:14px;justify-content:center;align-items:center}
.partners-logos img{opacity:.95;filter:grayscale(.35);transition:.2s}
.partners-logos img:hover{filter:none;opacity:1}

.site-footer{padding:28px 0;background:#FFFFFF;border-top:var(--border)}
.footer-inner{display:grid;grid-template-columns: 1.2fr 1fr 1fr;gap:18px;align-items:center}
.footer-nav{display:flex;gap:12px;flex-wrap:wrap}
.footer-meta{display:flex;flex-direction:column;gap:6px;align-items:flex-end}
.socials{display:flex;gap:10px}
.socials a{display:grid;place-items:center;width:28px;height:28px;border:1px solid #D0D5DD;border-radius:8px}

@media (max-width: 920px){
  .hero-inner{grid-template-columns:1fr}
  .about-grid,.card-grid{grid-template-columns:1fr 1fr}
  .footer-inner{grid-template-columns:1fr}
  .partners-logos{grid-template-columns:repeat(3,1fr)}
}
@media (max-width: 640px){
  .about-grid,.card-grid{grid-template-columns:1fr}
  .nav ul{display:none;position:absolute;right:12px;top:104px;background:#fff;border:1px solid #E5E7EB;padding:12px;border-radius:12px;flex-direction:column;min-width:220px;box-shadow:var(--shadow)}
  .nav-toggle{display:inline-block}
}