:root{
  color-scheme:light;
  --paper:#f7f6fb;
  --white:#ffffff;
  --ink:#17131f;
  --muted:#625d6c;
  --purple:#31156f;
  --purple-deep:#211044;
  --purple-soft:#eee9fb;
  --orange:#b84c0f;
  --orange-bright:#dc651c;
  --line:#d9d4e2;
  --serif:Georgia,"Times New Roman",serif;
  --sans:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-family:var(--sans)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.shell{width:min(1160px,calc(100% - 2rem));margin:auto}
.topbar{position:sticky;top:0;z-index:20;border-bottom:4px solid var(--orange);background:var(--purple-deep);color:#fff}
.nav{min-height:84px;display:flex;align-items:center;gap:1.2rem}
.brand{display:flex;align-items:center;gap:.85rem;margin-right:auto;font-weight:900;letter-spacing:.01em}
.brand img{width:56px;height:56px;padding:3px;border:1px solid rgba(255,255,255,.42);border-radius:8px;background:#13091f;object-fit:contain}
.brand small{display:block;margin-top:.12rem;color:#ffb078;font-size:.7rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase}
.links{display:flex;gap:1.25rem;font-size:.92rem;font-weight:750;color:#eee9fb}
.links a{border-bottom:2px solid transparent;padding:.35rem 0}
.links a:hover{border-color:#ffb078;color:#fff}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:.72rem 1.18rem;border:2px solid var(--purple);border-radius:4px;background:var(--purple);color:#fff;font-weight:850;box-shadow:3px 3px 0 rgba(49,21,111,.16);transition:transform .15s ease,box-shadow .15s ease}
.button:hover{transform:translate(-1px,-1px);box-shadow:5px 5px 0 rgba(49,21,111,.18)}
.button.secondary{border-color:currentColor;background:transparent;color:var(--purple);box-shadow:none}
.topbar .button{border-color:#ffb078;background:#ffb078;color:#211044;box-shadow:none}
.topbar .button.secondary{border-color:rgba(255,255,255,.62);background:transparent;color:#fff}
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--white)}
.hero:before{content:"FIELD GUIDE / 2026";position:absolute;top:4rem;right:-2rem;color:rgba(49,21,111,.045);font-family:var(--serif);font-size:clamp(5rem,15vw,13rem);font-weight:700;letter-spacing:-.06em;white-space:nowrap}
.hero-grid{position:relative;display:grid;grid-template-columns:1.2fr .8fr;align-items:stretch;gap:0;min-height:600px;padding:0}
.hero-grid>div:first-child{display:flex;flex-direction:column;justify-content:center;padding:5.5rem 5rem 5.5rem 0}
.kicker{margin:0;color:var(--orange);font-size:.75rem;font-weight:900;letter-spacing:.19em;text-transform:uppercase}
.display{margin:.9rem 0 0;max-width:800px;color:var(--purple-deep);font-family:var(--serif);font-size:clamp(3.6rem,7vw,6.8rem);font-weight:700;line-height:.91;letter-spacing:-.055em}
.lead{max-width:700px;margin:1.6rem 0 0;color:var(--muted);font-size:clamp(1.05rem,2vw,1.25rem);line-height:1.75}
.hero-card{position:relative;display:flex;flex-direction:column;justify-content:flex-end;border:0;border-left:1px solid rgba(255,255,255,.18);background:var(--purple);color:#fff;padding:3rem}
.hero-card:before{content:"IST";position:absolute;top:1.5rem;right:1.5rem;color:rgba(255,255,255,.08);font-family:var(--serif);font-size:6rem;font-weight:700;line-height:1}
.hero-card img{width:min(260px,100%);height:auto;aspect-ratio:1;padding:10px;border:2px solid rgba(255,255,255,.72);border-radius:12px;background:#13091f;object-fit:contain;box-shadow:0 18px 35px rgba(0,0,0,.25)}
.hero-card .kicker{margin-top:2rem;color:#ffb078}
.hero-card h2{margin:.8rem 0 .65rem;font-family:var(--serif);font-size:2.4rem;line-height:1.05}
.hero-card p{margin:0;color:#ddd4f2}
.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}
.section{position:relative;padding:6.5rem 0;background:var(--paper)}
.section.alt{background:var(--purple-soft)}
.section:target{scroll-margin-top:100px}
.section-head{display:grid;grid-template-columns:.9fr 1.1fr;gap:4rem;align-items:end;padding-bottom:1.5rem;border-bottom:1px solid var(--line)}
.section h2{margin:.5rem 0 0;color:var(--purple-deep);font-family:var(--serif);font-size:clamp(2.5rem,5vw,4.9rem);font-weight:700;line-height:.98;letter-spacing:-.045em}
.section-head>p{margin:0;color:var(--muted);font-size:1.06rem}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;margin-top:2.4rem;background:transparent}
.card{position:relative;border:1px solid var(--line);border-top:5px solid var(--purple);background:var(--white);padding:2rem;box-shadow:0 12px 35px rgba(35,20,61,.06)}
.card:nth-child(2){border-top-color:var(--orange)}
.number{display:inline-grid;min-width:2.3rem;height:2.3rem;place-items:center;border:1px solid var(--line);background:var(--paper);color:var(--purple);font:850 .77rem ui-monospace,SFMono-Regular,Menlo,monospace}
.card h3{margin:1.6rem 0 .7rem;color:var(--purple-deep);font-family:var(--serif);font-size:1.75rem;line-height:1.08}
.card p,.card li{color:var(--muted)}
.card ul{margin:1.2rem 0 0;padding-left:1.2rem}
.card li::marker{color:var(--orange)}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:2.5rem}
.metric{border:1px solid var(--line);background:var(--white);padding:2rem;box-shadow:inset 0 -5px 0 var(--purple)}
.metric:nth-child(2){box-shadow:inset 0 -5px 0 var(--orange)}
.metric strong{display:block;color:var(--purple);font-family:var(--serif);font-size:3.5rem;line-height:.9}
.metric span{display:block;margin-top:.8rem;color:var(--ink);font-weight:800}
.faq{display:grid;gap:.8rem;margin-top:2.5rem}
.faq details{border:1px solid var(--line);border-left:5px solid var(--purple);background:var(--white);padding:1.2rem 1.4rem}
.faq details[open]{border-left-color:var(--orange)}
.faq summary{cursor:pointer;color:var(--purple-deep);font-family:var(--serif);font-size:1.2rem;font-weight:700}
.faq p{margin:.85rem 0 0;color:var(--muted)}
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:linear-gradient(105deg,var(--purple-deep) 0 34%,var(--white) 34%);padding:7rem 0 5.5rem}
.page-hero:after{content:"INFORMATION CENTER";position:absolute;right:2rem;bottom:-1.1rem;color:rgba(49,21,111,.055);font-family:var(--serif);font-size:5rem;font-weight:700;white-space:nowrap}
.page-hero .shell{position:relative;padding-left:39%}
.page-hero h1{margin:.8rem 0 0;color:var(--purple-deep);font-family:var(--serif);font-size:clamp(3.4rem,7vw,6.4rem);line-height:.94;letter-spacing:-.055em}
.page-hero p{max-width:760px;color:var(--muted);font-size:1.16rem}
.steps{display:grid;gap:0;margin-top:2.5rem;border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:64px 1fr;gap:1rem;border-bottom:1px solid var(--line);padding:1.25rem 0;color:var(--ink);font-size:1.1rem}
.step b{color:var(--orange);font-family:var(--serif);font-size:1.35rem}
.staff-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}
.person{position:relative;border:1px solid var(--line);background:var(--white);padding:2.2rem;box-shadow:0 14px 40px rgba(35,20,61,.07)}
.person:after{content:"";position:absolute;inset:0 0 auto auto;width:70px;height:7px;background:var(--orange)}
.avatar{display:grid;width:80px;height:80px;place-items:center;border:0;border-radius:50%;background:var(--purple);color:#fff;font-family:var(--serif);font-size:1.55rem;font-weight:700}
.role{margin-top:2rem;color:var(--orange);font-size:.75rem;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
.person h2{margin:.35rem 0;color:var(--purple-deep);font-family:var(--serif);font-size:2.5rem}
.person p{color:var(--muted)}
.contact{display:block;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--line);color:var(--purple);font-weight:850}
.footer{border-top:5px solid var(--orange);background:var(--purple-deep);padding:2.4rem 0;color:#d7cfea}
.footer-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem}
.footer-links{display:flex;flex-wrap:wrap;gap:1rem}
.footer a:hover{color:#ffb078}
@media(max-width:940px){
  .links{display:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-grid>div:first-child{padding:5rem 0}
  .hero-card{border-left:0;min-height:410px}
  .section-head{grid-template-columns:1fr;gap:1.4rem}
  .cards,.metric-grid{grid-template-columns:1fr}
  .staff-grid{grid-template-columns:1fr}
  .page-hero{background:var(--white)}
  .page-hero .shell{padding-left:0}
}
@media(max-width:600px){
  .brand span{display:none}
  .nav{gap:.55rem}
  .nav>.button{min-height:42px;padding:.6rem .72rem;font-size:.82rem}
  .nav{min-height:74px}
  .display{font-size:3.75rem}
  .hero-grid>div:first-child{padding:4rem 0}
  .hero-card{margin:0 -1rem;padding:2rem;min-height:360px}
  .page-hero{padding:4.5rem 0 3.5rem}
  .section{padding:4.5rem 0}
  .card,.person{padding:1.5rem}
  .page-hero:after{display:none}
}