:root{
  --blue-900:#0a2a43; --blue-800:#0f3657; --blue-700:#123a5f; --blue-600:#1f4c7a;
  --blue-500:#2f6aa3; --blue-300:#8fb7e0; --sky:#eef6ff; --ink:#0b2239; --muted:#5b6b7a; --white:#ffffff; --accent:#27a3ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--sky);color:var(--ink);}

.container{max-width:1100px;margin:0 auto;padding:0 24px;}
.site-header{position:sticky;top:0;background:var(--blue-900);color:var(--white);z-index:10;box-shadow:0 2px 10px rgba(0,0,0,.15);}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:64px;}
.brand{color:var(--white);text-decoration:none;font-weight:700;letter-spacing:.2px;font-size:20px;}
.brand strong{color:var(--accent);font-weight:900;}
.nav-links a{color:var(--white);text-decoration:none;margin-left:22px;opacity:.9}
.nav-links a:hover{opacity:1}
.nav-toggle{display:none;background:transparent;border:0;color:var(--white);font-size:22px}

.hero{background:linear-gradient(135deg, #0f3657 0%, #1f4c7a 35%, #2f6aa3 100%);color:var(--white);padding:72px 0;}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;}
.hero h1{font-size:36px;line-height:1.2;margin:0 0 12px}
.hero p{font-size:18px;opacity:.95;margin:0 0 24px}
.hero .btn{margin-right:12px}
.brain{width:100%;height:auto;filter:drop-shadow(0 8px 24px rgba(0,0,0,.2));}

.block{background:var(--white);border-radius:14px;padding:28px;margin:28px 0;box-shadow:0 1px 8px rgba(10,42,67,.06);}
.block h2{margin-top:0}
.meta, .bullets{margin:0;padding-left:18px}
.meta li, .bullets li{margin:6px 0}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:linear-gradient(180deg,#ffffff, #f5f9ff);border:1px solid #e3eefc;border-radius:12px;padding:18px}
.card h3{margin-top:0}

.pubs{padding-left:18px}
.note{color:var(--muted);font-size:14px}

.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:start}
.form label{display:block;margin:10px 0;color:var(--muted);font-size:14px}
.form input,.form textarea{width:100%;padding:12px;border:1px solid #cfe0f5;border-radius:10px;background:#f8fbff}
.form button{margin-top:6px}

.btn{display:inline-block;padding:12px 16px;border-radius:10px;text-decoration:none;font-weight:600;border:1px solid transparent}
.btn-primary{background:var(--accent);color:#06223a}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.6)}

.site-footer{padding:26px 0;background:var(--blue-900);color:var(--white)}
.ftr{display:flex;justify-content:space-between;gap:12px}
.mono{font-family: ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace}

/* Responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .nav-toggle{display:block}
  .nav-links.show{display:flex;flex-direction:column;position:absolute;right:12px;top:64px;background:var(--blue-800);padding:12px;border-radius:12px}
  .nav-links.show a{margin:8px 12px}
}

/* Rotator text */
.hero-rotator{font-size:18px;margin:0 0 24px;opacity:.95}

/* Active nav */
.nav-links a.active{opacity:1;text-decoration:underline}