/* Kasra Navabi, MD — shared styles */
:root{
  --ink:#102a3e;
  --ink-soft:#41586c;
  --paper:#f8fafc;
  --mist:#e8f1f8;
  --teal:#2774ae;        /* accents: buttons, badges, eyebrows */
  --teal-deep:#1c5887;   /* small inline text links (better contrast) */
  --hairline:#d8e2ea;
  --max:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Figtree',system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  display:flex;flex-direction:column;min-height:100vh;
}
main{flex:1}
h1,h2,h3{font-family:'Marcellus',serif;font-weight:400;line-height:1.15}
a{color:var(--teal-deep);text-decoration:none}
a:hover{color:var(--teal);text-decoration:underline}
a:focus-visible,button:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--teal);font-weight:600;margin-bottom:14px;
}

/* ---------- Nav ---------- */
nav{
  position:sticky;top:0;z-index:50;
  background:rgba(248,250,252,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--hairline);
}
.nav-inner{
  max-width:var(--max);margin:0 auto;padding:18px 24px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.brand{font-family:'Marcellus',serif;font-size:19px;color:var(--ink);letter-spacing:.01em}
.brand:hover{text-decoration:none}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--ink-soft);font-size:14.5px;font-weight:500}
.nav-links a:hover{color:var(--teal-deep);text-decoration:none}
.nav-links a.active{color:var(--teal);font-weight:600}
.nav-cta{
  background:var(--teal);color:#fff !important;
  padding:9px 18px;border-radius:999px;font-weight:600;
}
.nav-cta:hover{background:var(--teal-deep);color:#fff !important;text-decoration:none}
.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:6px}
.menu-btn span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}

/* ---------- Hero (home) ---------- */
header.hero{
  position:relative;overflow:hidden;
  padding:96px 0 110px;
}
.hero h1{font-size:clamp(38px,6vw,64px);margin-bottom:10px}
.hero .creds{
  font-size:clamp(17px,2.4vw,21px);color:var(--ink-soft);
  font-weight:300;max-width:640px;
}
.hero .creds strong{font-weight:500;color:var(--ink)}
.hero-actions{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:13px 26px;border-radius:999px;
  font-weight:600;font-size:15.5px;transition:.18s;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-deep);color:#fff}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.pulse-wrap{
  position:absolute;left:0;right:0;bottom:0;height:120px;
  pointer-events:none;opacity:.9;
}
.pulse-wrap svg{width:100%;height:100%}
.pulse-line{
  fill:none;stroke:var(--teal);stroke-width:1.6;opacity:.45;
  stroke-dasharray:2400;stroke-dashoffset:2400;
  animation:draw 3.2s ease-out forwards;
}
.pulse-line.faint{stroke:var(--hairline);opacity:1;animation-delay:.4s}
@keyframes draw{to{stroke-dashoffset:0}}

/* ---------- Page header (inner pages) ---------- */
.page-head{padding:72px 0 8px}
.page-head h1{font-size:clamp(32px,5vw,48px)}

/* ---------- Sections ---------- */
section{padding:64px 0}
section + section{border-top:1px solid var(--hairline)}
section h2{font-size:clamp(26px,4vw,36px);margin-bottom:26px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.lede{font-size:19px;font-weight:300;color:var(--ink-soft)}
.lede strong{font-weight:500;color:var(--ink)}
blockquote{
  margin-top:30px;padding:26px 28px;background:var(--mist);
  border-left:3px solid var(--teal);border-radius:0 8px 8px 0;
  font-family:'Marcellus',serif;font-size:19px;color:var(--teal-deep);
}
.portrait{margin-top:28px;max-width:340px}
.portrait img{
  display:block;width:100%;height:auto;border-radius:14px;
  box-shadow:0 18px 40px -18px rgba(16,42,62,.35);
}
.portrait figcaption{margin-top:10px;font-size:13.5px;color:var(--ink-soft);letter-spacing:.02em}
.abim-seal{display:inline-block;margin-top:22px}
.abim-seal img{display:block;max-width:150px;height:auto}
.abim-seal:hover{opacity:.85;text-decoration:none}

/* Home highlight cards */
.home-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px}
.home-card{
  display:block;background:#fff;border:1px solid var(--hairline);
  border-radius:14px;padding:28px 26px;color:var(--ink);transition:.18s;
}
.home-card:hover{text-decoration:none;border-color:var(--teal);box-shadow:0 14px 30px -18px rgba(16,42,62,.3);transform:translateY(-2px)}
.home-card h3{font-size:21px;margin-bottom:8px}
.home-card p{color:var(--ink-soft);font-size:15.5px}
.home-card .more{display:inline-block;margin-top:14px;color:var(--teal);font-weight:600;font-size:14.5px}

/* Conditions */
.cond-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 48px;margin-top:8px}
.cond-grid ul{list-style:none}
.cond-grid li{padding:13px 0;border-bottom:1px solid var(--hairline);font-size:16px;color:var(--ink-soft)}
.cond-grid li::before{content:"— ";color:var(--teal)}

/* Training */
.tl{list-style:none;margin-top:6px}
.tl li{display:grid;grid-template-columns:170px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--hairline)}
.tl .when{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:600;padding-top:3px}
.tl .what strong{display:block;font-weight:600;margin-bottom:2px}
.tl .what span{color:var(--ink-soft);font-size:15.5px}
.tl .what a{color:var(--ink-soft);text-decoration:underline;text-decoration-color:var(--hairline);text-underline-offset:3px;transition:.15s}
.tl .what a:hover{color:var(--teal-deep);text-decoration-color:var(--teal-deep)}
.badges{margin-top:34px;display:flex;gap:12px;flex-wrap:wrap}
.badge{
  display:inline-block;background:var(--mist);border:1px solid var(--hairline);
  padding:9px 16px;border-radius:999px;font-size:14px;font-weight:500;color:var(--teal-deep);
}

/* Publications */
.pubs{list-style:none}
.pubs li{padding:18px 0;border-bottom:1px solid var(--hairline)}
.pubs .title{font-weight:500;display:block}
.pubs a.title{color:var(--ink);text-decoration:none}
.pubs a.title:hover{color:var(--teal-deep);text-decoration:underline;text-underline-offset:3px}
.pubs .meta{font-size:14.5px;color:var(--ink-soft);font-style:italic}
.pubs.loading{opacity:.55;transition:opacity .3s}
.pubs-link{margin-top:26px;font-size:15.5px;font-weight:500}

/* Testimonials */
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:8px}
.quote-card{
  background:#fff;border:1px solid var(--hairline);border-radius:14px;
  padding:28px;position:relative;
}
.quote-card::before{
  content:"\201C";font-family:'Marcellus',serif;font-size:54px;line-height:1;
  color:var(--teal);opacity:.35;display:block;margin-bottom:6px;
}
.quote-card p{font-size:17px;color:var(--ink)}
.quote-card .attrib{margin-top:14px;font-size:14px;color:var(--ink-soft)}
.reviews-cta{
  margin-top:40px;background:var(--mist);border:1px solid var(--hairline);
  border-radius:14px;padding:34px;display:flex;align-items:center;
  justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.reviews-cta p{color:var(--ink-soft);max-width:520px}

/* Contact */
.contact-card{
  background:var(--ink);color:#e7f0f4;border-radius:16px;
  padding:54px 48px;display:grid;grid-template-columns:1.2fr 1fr;gap:48px;
}
.contact-card h2{color:#fff;margin-bottom:18px}
.contact-card a{color:#8ec3e8}
.contact-card a:hover{color:#fff}
.contact-card .big{font-family:'Marcellus',serif;font-size:26px;color:#fff;display:inline-block;margin:6px 0 18px}
.contact-card p{color:#b3c5d4;font-size:16px}
.hours{list-style:none;margin-top:8px}
.hours li{
  display:flex;justify-content:space-between;
  padding:9px 0;border-bottom:1px solid rgba(255,255,255,.12);
  font-size:15px;color:#c6d3de;
}
.hours li span:last-child{color:#fff}
.hours-label{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#8ec3e8;font-weight:600;margin-bottom:8px}

footer{padding:34px 0 44px;font-size:13.5px;color:var(--ink-soft);border-top:1px solid var(--hairline);margin-top:40px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media (max-width:880px){
  .two-col{grid-template-columns:1fr;gap:34px}
  .cond-grid{grid-template-columns:1fr 1fr}
  .home-cards{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .contact-card{grid-template-columns:1fr;padding:40px 30px}
}
@media (max-width:640px){
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--paper);border-bottom:1px solid var(--hairline);
    flex-direction:column;padding:18px 24px;gap:18px;align-items:flex-start;
  }
  .nav-links.open{display:flex}
  .menu-btn{display:block}
  .cond-grid{grid-template-columns:1fr}
  .tl li{grid-template-columns:1fr;gap:4px}
  header.hero{padding:64px 0 96px}
  section{padding:48px 0}
  .page-head{padding:52px 0 4px}
}


/* ---------- Media page ---------- */
.media-item{max-width:860px}
.video-frame{
  position:relative;width:100%;aspect-ratio:16/9;
  border-radius:14px;overflow:hidden;background:var(--mist);
  box-shadow:0 18px 40px -18px rgba(16,42,62,.35);
}
.video-frame iframe{
  position:absolute;inset:0;width:100%;height:100%;border:0;
}
a.video-link{display:block;text-decoration:none}
.video-link img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;transition:transform .3s ease;
}
.video-link:hover img{transform:scale(1.03)}
.play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:74px;height:74px;border-radius:50%;
  background:rgba(16,42,62,.78);transition:background .2s;
}
.play-btn::after{
  content:"";position:absolute;top:50%;left:55%;transform:translate(-50%,-50%);
  border-left:22px solid #fff;border-top:13px solid transparent;border-bottom:13px solid transparent;
}
.video-link:hover .play-btn{background:var(--teal)}
.watch-label{
  position:absolute;right:14px;bottom:12px;
  background:rgba(16,42,62,.78);color:#fff;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  padding:6px 12px;border-radius:999px;
}
.media-title{font-size:24px;margin-top:24px}
.media-desc{color:var(--ink-soft);margin-top:6px;font-size:16px}


/* ---------- Condition cards with icons ---------- */
.cond-cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.cond-card{
  background:#fff;border:1px solid var(--hairline);border-radius:14px;
  padding:28px 26px 22px;transition:box-shadow .25s ease,transform .25s ease;
}
.cond-card:hover{
  box-shadow:0 16px 36px -20px rgba(16,42,62,.35);transform:translateY(-2px);
}
.cond-icon{
  width:38px;height:38px;color:var(--teal);margin-bottom:14px;
}
.cond-card h3{
  font-size:19px;margin-bottom:10px;
}
.cond-card ul{list-style:none;margin:0;padding:0}
.cond-card li{
  padding:7px 0;border-bottom:1px solid var(--mist);
  font-size:15px;color:var(--ink-soft);
}
.cond-card li:last-child{border-bottom:none}
@media (max-width:880px){.cond-cards{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.cond-cards{grid-template-columns:1fr}}


/* ---------- Pulse divider (hormonal rhythm motif) ---------- */
.pulse-divider{
  display:block;width:200px;height:22px;margin-top:18px;
  stroke:var(--teal);stroke-width:1.6;opacity:.5;
  stroke-linecap:round;
}
.pulse-divider path{
  stroke-dasharray:520;stroke-dashoffset:520;
  animation:drawline 2.4s ease-out forwards;
}
@keyframes drawline{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){
  .pulse-divider path{animation:none;stroke-dashoffset:0}
}


/* ---------- Thyroxine molecule watermark (footer) ---------- */
footer{position:relative;overflow:hidden;padding:44px 0 48px;min-height:150px}
.molecule-mark{
  width:180px;height:auto;display:block;
  fill:none;stroke:var(--teal);stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;opacity:.22;
}


/* ---------- About: fact panel filling the column ---------- */
.fact-panel{
  margin-top:30px;border-top:1px solid var(--hairline);
}
.fact{
  display:grid;grid-template-columns:160px 1fr;gap:18px;
  padding:15px 0;border-bottom:1px solid var(--hairline);
}
.fact-label{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teal);font-weight:600;padding-top:2px;
}
.fact-value{font-size:15.5px;color:var(--ink);}
.text-cta{
  display:inline-block;margin-top:26px;font-weight:600;font-size:16px;
  color:var(--teal-deep);
}
.text-cta:hover{color:var(--teal);text-decoration:none}
@media (max-width:520px){.fact{grid-template-columns:1fr;gap:3px}}


/* ---------- Footer molecule watermark + label ---------- */
.molecule-wrap{
  position:absolute;right:26px;top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;align-items:flex-end;gap:5px;
  pointer-events:none;
}
.molecule-name{
  font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--teal-deep);opacity:.5;font-weight:600;
}
@media (max-width:640px){
  footer{padding:32px 0 34px;min-height:0}
  footer .wrap{position:relative;z-index:1;text-align:center}
  .molecule-wrap{
    position:static;transform:none;margin:22px auto 0;
    align-items:center;
  }
  .molecule-mark{width:150px}
  .molecule-name{font-size:9px}
}