/* ============================================================
   International Thyroid NOTES Conference — transorals.org
   Design system : deep navy + gold, international academic congress
   ============================================================ */

/* ---- self-hosted subset fonts (font-display:optional => CLS 0) ---- */
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:optional;src:url(/assets/fonts/Inter-400.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:optional;src:url(/assets/fonts/Inter-600.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:optional;src:url(/assets/fonts/Inter-700.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:800;font-display:optional;src:url(/assets/fonts/Inter-800.woff2) format('woff2')}
@font-face{font-family:'Fraunces';font-style:normal;font-weight:500;font-display:optional;src:url(/assets/fonts/Fraunces-500.woff2) format('woff2')}
@font-face{font-family:'Fraunces';font-style:normal;font-weight:600;font-display:optional;src:url(/assets/fonts/Fraunces-600.woff2) format('woff2')}
@font-face{font-family:'Fraunces';font-style:normal;font-weight:700;font-display:optional;src:url(/assets/fonts/Fraunces-700.woff2) format('woff2')}
/* metric-matched fallbacks (keep layout stable if the webfont is skipped) */
@font-face{font-family:'Inter-fallback';src:local('Arial');ascent-override:90%;descent-override:22.4%;line-gap-override:0%;size-adjust:107%}
@font-face{font-family:'Fraunces-fallback';src:local('Georgia'),local('Times New Roman');ascent-override:98%;descent-override:26%;line-gap-override:0%;size-adjust:104%}

:root{
  --navy:#0a2a4e;
  --navy-2:#0d3260;
  --navy-deep:#071e39;
  --ink:#16283d;
  --gold:#b8862b;
  --gold-2:#d9ab4c;
  --gold-ink:#7a5713;   /* darker gold for small text — passes WCAG AA on light bg */
  --gold-soft:#f3e6c4;
  --paper:#ffffff;
  --mist:#f5f7fa;
  --mist-2:#eef2f7;
  --line:#e2e8f0;
  --muted:#5b6b7d;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(8,29,54,.10);
  --shadow-lg:0 24px 60px rgba(8,29,54,.16);
  --radius:14px;
  --radius-sm:9px;
  --wrap:1180px;
  --sans:'Inter','Inter-fallback',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --serif:'Fraunces','Fraunces-fallback',Georgia,'Times New Roman',serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);color:var(--ink);
  background:var(--paper);line-height:1.7;font-size:17px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy-2);text-decoration:none}
a:hover{color:var(--gold-ink)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--navy);line-height:1.15;font-weight:600;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.6vw,3.35rem);letter-spacing:-.5px}
h2{font-size:clamp(1.6rem,3.2vw,2.35rem);letter-spacing:-.3px}
h3{font-size:1.3rem}
p{margin:0 0 1.1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.eyebrow{font-family:var(--sans);text-transform:uppercase;letter-spacing:.18em;
  font-size:.76rem;font-weight:700;color:var(--gold-ink)}
.center{text-align:center}
.lead{font-size:1.17rem;color:#33475b}

/* ---------- top utility bar ---------- */
.util{background:var(--navy-deep);color:#c9d6e5;font-size:.82rem}
.util .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:7px 22px;flex-wrap:wrap}
.util a{color:#dce6f2}
.util a:hover{color:var(--gold-2)}
.util .u-right{display:flex;gap:18px;align-items:center;flex-wrap:wrap}

/* ---------- header / nav ---------- */
.site-head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:11px 22px;max-width:var(--wrap);margin:0 auto}
.brand{display:flex;align-items:center;gap:13px;min-width:0}
.brand img{height:52px;width:auto}
.brand .bt{font-family:var(--serif);font-weight:600;color:var(--navy);line-height:1.05;font-size:1.02rem}
.brand .bt small{display:block;font-family:var(--sans);font-weight:600;color:var(--gold-ink);
  font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;margin-top:2px}
.menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.menu>li{position:relative}
.menu>li>a{display:block;padding:11px 13px;font-weight:600;font-size:.92rem;color:var(--ink);border-radius:8px}
.menu>li>a:hover,.menu>li.current>a{color:var(--navy);background:var(--mist-2)}
.menu .has>a::after{content:"";display:inline-block;margin-left:6px;border:4px solid transparent;
  border-top-color:currentColor;transform:translateY(2px);opacity:.6}
.submenu{position:absolute;top:calc(100% + 6px);left:0;min-width:262px;background:#fff;
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:.16s;list-style:none;margin:0}
.menu>li.has:hover .submenu,.menu>li.has:focus-within .submenu{opacity:1;visibility:visible;transform:none}
.submenu a{display:block;padding:9px 12px;border-radius:8px;font-size:.9rem;font-weight:500;color:var(--ink)}
.submenu a:hover{background:var(--mist);color:var(--navy)}
.nav-cta{background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#fff !important;
  padding:10px 18px !important;border-radius:9px;font-weight:700;box-shadow:0 6px 16px rgba(184,134,43,.32)}
.nav-cta:hover{filter:brightness(1.05);color:#fff}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:26px;height:2.5px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.2s}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-family:var(--sans);
  padding:14px 26px;border-radius:10px;font-size:1rem;cursor:pointer;border:0;transition:.18s;text-align:center}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#fff;box-shadow:0 10px 24px rgba(184,134,43,.34)}
.btn-gold:hover{transform:translateY(-2px);color:#fff;box-shadow:0 14px 30px rgba(184,134,43,.42)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2);color:#fff;transform:translateY(-2px)}
.btn-lg{padding:16px 34px;font-size:1.06rem}

/* ---------- hero ---------- */
.hero{position:relative;background:
   radial-gradient(1200px 500px at 80% -10%,rgba(217,171,76,.16),transparent),
   linear-gradient(160deg,var(--navy-deep),var(--navy) 55%,var(--navy-2));
   color:#eaf1f9;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.5}
.hero .wrap{position:relative;z-index:2;padding:74px 22px 82px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{color:#fff;margin-bottom:.35em}
.hero .kicker{display:inline-flex;align-items:center;gap:10px;background:rgba(217,171,76,.16);
  border:1px solid rgba(217,171,76,.4);color:var(--gold-2);padding:7px 15px;border-radius:100px;
  font-weight:700;font-size:.82rem;letter-spacing:.04em;margin-bottom:20px}
.hero p.lead{color:#cdd9e7;font-size:1.2rem;max-width:42ch}
.hero-meta{display:flex;gap:26px;flex-wrap:wrap;margin:26px 0 30px}
.hero-meta .hm{display:flex;flex-direction:column}
.hero-meta .hm b{font-family:var(--serif);color:#fff;font-size:1.28rem;font-weight:600}
.hero-meta .hm span{color:#9fb3ca;font-size:.82rem;text-transform:uppercase;letter-spacing:.1em}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:18px;padding:8px;box-shadow:var(--shadow-lg)}
.hero-card img{border-radius:12px;width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.hero-badges span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:#dbe6f2;font-size:.78rem;font-weight:600;padding:6px 12px;border-radius:8px}

/* ---------- sections ---------- */
section{padding:66px 0}
.sec-tight{padding:44px 0}
.bg-mist{background:var(--mist)}
.bg-navy{background:linear-gradient(160deg,var(--navy-deep),var(--navy));color:#e7eef7}
.bg-navy h1,.bg-navy h2,.bg-navy h3{color:#fff}
.bg-navy p{color:#c6d3e2}
.sec-head{max-width:720px;margin:0 auto 44px;text-align:center}
.sec-head.left{margin-left:0;text-align:left}
.sec-head h2{margin-top:.25em}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#d8e0ea}
.card h3{margin-top:.1em}
.card .ic{width:48px;height:48px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--gold-soft),#fff);color:var(--gold);margin-bottom:16px;
  border:1px solid var(--gold-soft);font-size:1.4rem}

/* highlight/definition box for AIO */
.definition{background:linear-gradient(135deg,#fbf7ec,#fff);border:1px solid var(--gold-soft);
  border-left:5px solid var(--gold);border-radius:12px;padding:24px 26px;margin:26px 0}
.definition h3{color:var(--navy);margin-top:0}
.callout{background:var(--mist);border:1px solid var(--line);border-radius:12px;padding:22px 24px;margin:22px 0}
.tldr{background:var(--navy);color:#eaf1f9;border-radius:14px;padding:24px 28px;margin:26px 0}
.tldr h3,.tldr .tl-k{color:var(--gold-2);font-family:var(--sans);text-transform:uppercase;letter-spacing:.1em;font-size:.82rem;margin:0 0 .6em;font-weight:700}
.tldr p{color:#d5e0ee;margin:0}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{text-align:center;padding:12px}
.stat b{display:block;font-family:var(--serif);font-size:2.6rem;color:var(--gold-2);line-height:1;font-weight:600}
.stat span{color:#a9bad0;font-size:.9rem;margin-top:8px;display:block}
.bg-mist .stat b{color:var(--gold)}
.bg-mist .stat span{color:var(--muted)}

/* speaker cards */
.spk{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);transition:.2s}
.spk:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.spk .ph{aspect-ratio:1/1;background:var(--mist-2);overflow:hidden}
.spk .ph img{width:100%;height:100%;object-fit:cover}
.spk .bd{padding:18px 20px}
.spk .bd b{font-family:var(--serif);font-size:1.12rem;color:var(--navy);display:block}
.spk .bd .aff{color:var(--muted);font-size:.88rem;margin-top:3px}
.spk .bd .flag{font-size:.82rem;color:var(--gold-ink);font-weight:700;margin-top:8px;text-transform:uppercase;letter-spacing:.05em}

/* tables */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
table.prog{width:100%;border-collapse:collapse;font-size:.94rem;min-width:640px;background:#fff}
table.prog th,table.prog td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.prog thead th{background:var(--navy);color:#fff;font-family:var(--sans);font-weight:700;font-size:.84rem;letter-spacing:.03em}
table.prog tbody tr:nth-child(even){background:var(--mist)}
table.prog .t{white-space:nowrap;font-weight:700;color:var(--navy);width:120px}
table.prog .sp{color:var(--gold-ink);font-weight:600;font-size:.9rem}
.daytag{display:inline-block;background:var(--gold-soft);color:var(--navy);font-weight:700;
  padding:5px 14px;border-radius:100px;font-size:.82rem;margin:8px 0}
.sesstitle{margin:30px 0 12px;padding-left:14px;border-left:4px solid var(--gold);font-family:var(--serif);
  font-size:1.2rem;color:var(--navy);font-weight:600}

/* list styles */
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checklist li{position:relative;padding-left:34px;color:#33475b}
.checklist li::before{content:"✓";position:absolute;left:0;top:0;width:23px;height:23px;border-radius:50%;
  background:var(--gold-soft);color:var(--gold);display:grid;place-items:center;font-weight:800;font-size:.8rem;border:1px solid #e8d49a}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery a{display:block;border-radius:10px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.3s}
.gallery a:hover img{transform:scale(1.06)}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden}
.faq summary{cursor:pointer;padding:20px 24px;font-family:var(--serif);font-weight:600;color:var(--navy);
  font-size:1.1rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--gold);font-family:var(--sans);transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details>div{padding:0 24px 22px;color:#3a4c5f}

/* timeline (previous conf) */
.timeline{max-width:900px;margin:0 auto;position:relative}
.timeline::before{content:"";position:absolute;left:22px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:0 0 30px 62px}
.tl-item::before{content:"";position:absolute;left:14px;top:4px;width:18px;height:18px;border-radius:50%;
  background:var(--gold);border:3px solid #fff;box-shadow:0 0 0 2px var(--gold-soft)}
.tl-item h3{margin-bottom:.2em}
.tl-item .yr{color:var(--gold-ink);font-weight:700;font-size:.85rem;letter-spacing:.05em}

/* hotel cards */
.hotel{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:14px;box-shadow:var(--shadow)}
.hotel img{width:110px;height:82px;object-fit:cover;border-radius:9px;flex-shrink:0}
.hotel .hb b{font-family:var(--serif);color:var(--navy);font-size:1.02rem}
.hotel .hb .meta{color:var(--muted);font-size:.85rem;margin:4px 0}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--navy-deep),var(--navy-2));color:#fff;border-radius:20px;
  padding:52px 44px;text-align:center;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 50% -30%,rgba(217,171,76,.2),transparent)}
.cta-band>*{position:relative}
.cta-band h2{color:#fff}
.cta-band p{color:#c9d6e5;max-width:60ch;margin-left:auto;margin-right:auto}

/* page hero (subpages) */
.phead{background:linear-gradient(160deg,var(--navy-deep),var(--navy));color:#fff;padding:56px 0 48px;position:relative;overflow:hidden}
.phead::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.45}
.phead .wrap{position:relative;z-index:2}
.phead h1{color:#fff;margin:.15em 0 .2em}
.phead p{color:#c6d3e2;max-width:60ch;margin:0}
.crumb{font-size:.83rem;color:#9fb3ca;margin-bottom:6px}
.crumb a{color:#c6d3e2}

/* map */
.mapbox{border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);aspect-ratio:16/9}
.mapbox iframe{width:100%;height:100%;border:0}

/* footer */
.site-foot{background:var(--navy-deep);color:#a9bcd2;padding:56px 0 26px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.site-foot h3{color:#fff;font-family:var(--sans);font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:16px}
.site-foot a{color:#a9bcd2;display:block;padding:4px 0}
.site-foot a:hover{color:var(--gold-2)}
.foot-brand img{height:56px;margin-bottom:14px}
.foot-brand p{color:#8fa4bd;font-size:.88rem}
.foot-bar{border-top:1px solid rgba(255,255,255,.1);margin-top:38px;padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#7f95af;font-size:.82rem}
.orglogos{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-top:10px}
.orglogos img{height:52px;width:auto;background:#fff;border-radius:8px;padding:6px}

/* misc */
.pill{display:inline-block;background:var(--gold-soft);color:var(--navy);font-weight:700;
  padding:5px 13px;border-radius:100px;font-size:.8rem}
.note{font-size:.86rem;color:var(--muted)}
.divider{height:1px;background:var(--line);margin:40px 0}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose ul{padding-left:1.2em}
.prose li{margin-bottom:.5em}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  body{font-size:16px}
  .burger{display:block}
  .menu{position:fixed;inset:0 0 0 auto;width:min(86vw,340px);background:#fff;flex-direction:column;
    align-items:stretch;padding:74px 16px 24px;gap:2px;transform:translateX(100%);transition:.25s;
    box-shadow:var(--shadow-lg);overflow-y:auto;z-index:70}
  .menu.open{transform:none}
  .menu>li>a{padding:12px 14px}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;
    border-left:2px solid var(--gold-soft);border-radius:0;margin:2px 0 6px 14px;min-width:0;padding:0}
  .menu .has>a::after{float:right}
  .nav-scrim{position:fixed;inset:0;background:rgba(7,20,35,.5);z-index:65;opacity:0;visibility:hidden;transition:.25s}
  .nav-scrim.open{opacity:1;visibility:visible}
  .g2,.g3,.g4,.stats{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr}
  .cta-band{padding:38px 22px}
  section{padding:48px 0}
  .hero .wrap{padding:52px 22px 58px}
}