/* ============================================================
   Dr Chetan M Dojode — Professional Portfolio
   Identity: Indigo + Ivory + Brass. Academic / editorial.
   Deliberately distinct from orthosportsrobotics.com
   (which uses teal + slate, Playfair Display + Inter).
   ============================================================ */

:root{
  --indigo:#2E3192;
  --indigo-dark:#21245F;
  --indigo-soft:#4A4EB5;
  --brass:#B8863B;
  --brass-text:#836024;
  --brass-soft:#D9B978;
  --ivory:#FBF9F4;
  --ivory-soft:#F4F1E8;
  --ivory-deep:#EDE8DA;
  --ink:#1F1D2E;
  --slate:#4A4860;
  --muted:#6C6982;
  --line:#E5E0D4;
  --white:#fff;
  --maxw:1120px;
  --shadow:0 1px 2px rgba(31,29,46,.04),0 10px 34px rgba(31,29,46,.07);
  --shadow-sm:0 1px 3px rgba(31,29,46,.06);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Source Serif 4',Georgia,serif;
  font-size:17px;line-height:1.7;
  color:var(--slate);background:var(--ivory);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Archivo',system-ui,sans-serif;
  color:var(--ink);font-weight:700;line-height:1.18;letter-spacing:-.015em;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
strong,b{color:var(--ink)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.narrow{max-width:840px}
.eyebrow{
  font-family:'Archivo',sans-serif;font-weight:600;font-size:.74rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--brass-text);
}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,249,244,.93);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{height:44px;width:auto;border-radius:9px}
.brand .bt{font-family:'Archivo',sans-serif;line-height:1.15}
.brand .bt b{display:block;font-size:1rem;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand .bt span{display:block;font-size:.64rem;letter-spacing:.15em;color:var(--muted);text-transform:uppercase;font-weight:600}
nav.links{display:flex;align-items:center;gap:26px}
nav.links a{
  font-family:'Archivo',sans-serif;font-weight:500;font-size:.9rem;
  color:var(--slate);transition:color .15s;white-space:nowrap;
}
nav.links a:hover,nav.links a.active{color:var(--indigo)}
nav.links a.active{font-weight:600}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Archivo',sans-serif;font-weight:600;font-size:.88rem;
  background:var(--indigo);color:#fff;padding:11px 19px;border-radius:8px;
  transition:background .16s,transform .16s;white-space:nowrap;
}
.btn:hover{background:var(--indigo-dark);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--indigo);border:1.5px solid var(--line)}
.btn.ghost:hover{background:var(--white);border-color:var(--indigo)}
.btn.brass{background:var(--brass-text);color:#fff}
.btn.brass:hover{background:#9d7231}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;font-size:1.6rem;color:var(--ink)}

/* ---------- Page hero ---------- */
.phero{background:linear-gradient(180deg,var(--ivory-soft),var(--ivory) 88%);padding:58px 0 42px;border-bottom:1px solid var(--line)}
.phero h1{font-size:clamp(2rem,4vw,2.9rem);font-weight:800;max-width:820px}
.phero p.lead{font-size:1.12rem;max-width:730px;margin-top:16px;color:var(--slate)}
.creds-line{
  font-family:'Archivo',sans-serif;font-weight:600;font-size:.92rem;
  color:var(--indigo);margin-top:16px;letter-spacing:.01em;
}

/* ---------- Sections ---------- */
section.block{padding:56px 0}
.block.soft{background:var(--ivory-soft)}
.block.deep{background:var(--ivory-deep)}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.05rem);margin-top:8px}
.sec-head p{margin-top:12px}

/* ---------- Cards ---------- */
.card{
  background:var(--white);border:1px solid var(--line);border-radius:12px;
  padding:26px 28px;box-shadow:var(--shadow-sm);
}
.card h3,.card h2{font-size:1.12rem;color:var(--indigo-dark);margin-bottom:12px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

/* ---------- Lists ---------- */
ul.plain{list-style:none;display:flex;flex-direction:column;gap:9px}
ul.plain li{position:relative;padding-left:20px;font-size:.97rem}
ul.plain li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brass)}
ul.tick{list-style:none;display:flex;flex-direction:column;gap:10px}
ul.tick li{position:relative;padding-left:27px;font-size:.97rem}
ul.tick li::before{content:"";position:absolute;left:0;top:9px;width:13px;height:7px;border-left:2px solid var(--indigo);border-bottom:2px solid var(--indigo);transform:rotate(-45deg)}

/* ---------- Stat / metric ---------- */
.stats{display:flex;gap:38px;flex-wrap:wrap;margin-top:26px}
.stat b{
  display:block;font-family:'Archivo',sans-serif;font-size:2rem;
  font-weight:800;color:var(--indigo);line-height:1;
}
.stat span{font-size:.9rem;color:var(--muted)}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:10px;padding-left:32px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brass),var(--line))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:6px;width:14px;height:14px;
  border-radius:50%;background:var(--ivory);border:3px solid var(--brass);
}
.tl-item .yr{font-family:'Archivo',sans-serif;font-weight:700;font-size:.82rem;color:var(--brass-text);letter-spacing:.06em}
.tl-item h3{font-size:1.05rem;margin:3px 0 4px}
.tl-item p{font-size:.95rem;color:var(--slate)}

/* ---------- Callout ---------- */
.callout{
  background:var(--white);border-left:4px solid var(--brass);
  border-radius:0 10px 10px 0;padding:20px 24px;margin:24px 0;
  box-shadow:var(--shadow-sm);
}
.callout.indigo{border-left-color:var(--indigo)}

/* ---------- Cross-link band (to clinic site) ---------- */
.crosslink{
  background:linear-gradient(135deg,var(--indigo),var(--indigo-dark));
  color:#fff;border-radius:16px;padding:38px 40px;
  display:grid;grid-template-columns:1.6fr auto;gap:26px;align-items:center;
}
.crosslink h2{color:#fff;font-size:1.5rem}
.crosslink p{color:rgba(255,255,255,.86);margin-top:10px;font-size:1rem}
.crosslink .btn{background:var(--brass-text)}
.crosslink .btn:hover{background:#c9954a}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:#C9C6DB;padding:52px 0 26px;margin-top:8px}
footer .fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px}
footer h4,footer .fh{color:#fff;font-size:1rem;margin-bottom:12px;font-family:'Archivo',sans-serif}
footer .deg{color:#8B88A8;font-size:.8rem;line-height:1.6;margin-bottom:12px}
footer p{color:#8B88A8;font-size:.9rem}
footer a{color:#C9C6DB;font-size:.92rem;line-height:2}
footer a:hover{color:var(--brass-soft)}
footer .copy{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.11);
  font-size:.82rem;color:#918EAD;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:10px;
}

/* ---------- Responsive ---------- */
@media(max-width:920px){
  .grid2,.grid3{grid-template-columns:1fr}
  .crosslink{grid-template-columns:1fr;padding:30px 26px}
  footer .fgrid{grid-template-columns:1fr;gap:26px}
  nav.links{display:none}
  nav.links.open{
    display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;
    align-items:flex-start;background:var(--ivory);border-bottom:1px solid var(--line);
    padding:18px 24px;gap:16px;
  }
  .menu-toggle{display:block}
}