/* Index page styles — portrait split layout for a professional research chair site, top heading with menu on second line */
:root{
  --bg: #071226;
  --panel-bg: rgba(255,255,255,0.02);
  --muted: #9fb3c9;
  --text: #eaf3ff;
  --accent: #2ec4b6; /* teal accent for professional look */
  --accent-2: #68b8ff;
  --glass: rgba(255,255,255,0.03);
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial;color:var(--text);background:linear-gradient(180deg,var(--bg),#04121a);scroll-behavior:smooth}

/* Top heading bar */
.topbar{width:100%;background:linear-gradient(90deg,rgba(46,196,182,0.06),rgba(104,184,255,0.04));backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,0.03);position:sticky;top:0;z-index:1200}
.topbar-inner{max-width:1200px;margin:0 auto;padding:12px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}
.topbar-title{margin:0;font-size:18px;font-weight:700;letter-spacing:0.6px;color:var(--text);display:block;text-align:center}
.topbar-nav{display:flex;gap:12px;margin-top:6px;justify-content:center}
.topbar-link{color:var(--muted);text-decoration:none;font-weight:700;padding:6px 10px;border-radius:8px}
.topbar-link:hover{color:var(--accent);background:rgba(46,196,182,0.03)}
.topbar-link.active{color:#011623;background:linear-gradient(90deg,var(--accent),var(--accent-2));box-shadow:0 6px 18px rgba(46,196,182,0.12)}

.index-root{min-height:100vh;display:flex;flex-direction:column}

/* Main split layout */
.split-portrait{flex:1;display:flex;flex-direction:row;align-items:stretch;justify-content:stretch;gap:28px;max-width:1200px;margin:28px auto;padding:20px}
.panel{flex:1;background:var(--panel-bg);border-radius:14px;padding:22px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;border:1px solid rgba(255,255,255,0.03);box-shadow:0 8px 30px rgba(2,6,23,0.6)}

/* Portrait (left) */
.portrait-wrap{width:100%;display:flex;align-items:center;justify-content:center}
.portrait-img{width:260px;height:260px;object-fit:cover;border-radius:50%;border:4px solid rgba(255,255,255,0.04);box-shadow:0 12px 40px rgba(2,6,23,0.6)}
.bio{width:100%;max-width:520px;margin-top:18px;text-align:left}
.name{margin:0;font-size:22px}
.title{margin:6px 0 12px;color:var(--muted);font-weight:600}
.bio-text p{margin:10px 0;color:var(--text);line-height:1.5}
.small{font-size:13px}
.links{margin-top:14px}
.btn-outline{display:inline-block;padding:8px 12px;border-radius:8px;border:1px solid rgba(255,255,255,0.06);color:var(--text);text-decoration:none;margin-right:8px;font-weight:600}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* Research (right) */
.research-wrap{width:100%;display:flex;align-items:center;justify-content:center}
.research-img{width:100%;max-width:520px;height:auto;object-fit:contain;border-radius:10px;border:1px solid rgba(255,255,255,0.03)}
.ssot-figure{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.ssot-caption{color:var(--muted);font-size:13px}
.research-caption{width:100%;max-width:520px;margin-top:18px;text-align:left}
.research-title{margin:0;font-size:20px}
.link{color:var(--accent)}

/* Contact form frame styling */
.contact-frame{width:100%;max-width:700px;margin-top:12px;background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border:1px solid rgba(255,255,255,0.04);padding:18px;border-radius:12px;box-shadow:0 10px 30px rgba(2,6,23,0.6)}
.contact-frame:focus-within{outline:2px solid rgba(46,196,182,0.14);outline-offset:4px}

/* Contact form */
.contact-form{display:flex;flex-direction:column;gap:8px}
.contact-form input[type="text"],.contact-form input[type="email"],.contact-form textarea{padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:rgba(255,255,255,0.01);color:var(--text)}
.contact-form label{font-weight:600;color:var(--muted);font-size:13px}
.contact-form button{align-self:flex-start}

/* Anchor sections */
.anchor-section{max-width:1200px;margin:18px auto;padding:18px 20px;border-radius:10px;background:transparent}
.anchor-inner{background:rgba(255,255,255,0.01);padding:16px;border-radius:10px;border:1px solid rgba(255,255,255,0.02)}

/* Footer */
.index-footer{text-align:center;padding:18px 0;color:var(--muted)}

/* Responsive adjustments */
@media (max-width:980px){
  .split-portrait{flex-direction:column;margin:18px auto;padding:14px}
  .portrait-img{width:220px;height:220px}
  .research-img{max-width:420px}
  .bio-text p{font-size:15px}
  .contact-frame{max-width:100%}
}

@media (max-width:520px){
  .portrait-img{width:160px;height:160px}
  .bio{padding:0 6px}
  .research-img{max-width:320px}
  .topbar-inner{padding:10px}
  .topbar-nav{flex-wrap:wrap;gap:8px}
}