/* Brain Anatomy Awareness – Minimal, clean, responsive */
:root{
  --bg:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --brand:#4f46e5;
  --brand-2:#a855f7;
  --border:#e2e8f0;
  --card:#f8fafc;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',Arial,'Noto Sans',sans-serif;
  line-height:1.6;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto;border-radius:16px}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.topbar{
  position:sticky;top:0;background:rgba(255,255,255,0.86);
  backdrop-filter: blur(8px);
  border-bottom:1px solid var(--border);
  z-index:10;
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.logo{font-weight:800;text-decoration:none;color:var(--text);font-size:1.1rem}
.nav{display:flex;align-items:center;gap:16px}
.nav-link{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:10px}
.nav-link:hover{background:var(--card)}
.btn{display:inline-block;padding:10px 14px;border-radius:12px;text-decoration:none;border:1px solid var(--border)}
.primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#fff;border:none}
.hero{padding:48px 0 16px}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center}
.badge{display:inline-block;background:var(--card);border:1px solid var(--border);padding:4px 10px;border-radius:999px;font-size:.85rem}
h1{font-size:clamp(1.6rem,2.8vw,2.6rem);line-height:1.2;margin:10px 0 12px}
h2{font-size:clamp(1.4rem,2.2vw,2rem);margin:14px 0}
.muted{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.section{padding:28px 0}
.kicker{font-weight:700;color:var(--brand)}
.footer{margin-top:40px;padding:26px 0;border-top:1px solid var(--border);background:#fafafa}
.footer-grid{display:grid;gap:16px;grid-template-columns:2fr 1fr 1fr}
.fineprint{margin-top:8px;padding-top:8px;border-top:1px dashed var(--border);font-size:.9rem;color:var(--muted)}
.list{list-style:none;margin:0;padding:0}
.list li{margin:6px 0}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.blog-list .card{display:flex;gap:16px;align-items:flex-start}
.blog-meta{font-size:.9rem;color:var(--muted)}
.author-block{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center}
.about-cards .card h3{margin:6px 0 8px}
.contact-form{display:grid;gap:12px}
input, textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:12px;
  font:inherit;background:#fff
}
textarea{min-height:140px;resize:vertical}
input:focus,textarea:focus{outline:2px solid #ddd}
.form-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
hr{border:none;border-top:1px solid var(--border);margin:16px 0}

/* Responsive */
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .grid-2, .grid-3{grid-template-columns:1fr}
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;align-items:flex-start;padding:8px 0}
  .nav-toggle{display:inline-block}
}
.nav-toggle{display:none;background:none;border:none;font-size:1.4rem}
.notice{padding:10px 12px;border:1px dashed var(--border);border-radius:12px;background:#fff}
.tag{display:inline-block;font-size:.8rem;padding:4px 8px;border-radius:999px;background:#eef2ff;border:1px solid #e0e7ff}
.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}