:root {
  --navy: #0b2340;
  --navy-2: #14325a;
  --ink: #1a1a1a;
  --muted: #5a5a5a;
  --line: #e5e1d8;
  --bg: #ffffff;
  --bg-alt: #f6f3ec;
  --bg-dark: #0b2340;
  --accent: #b89453;
  --accent-2: #9a7a3f;
  --radius: 10px;
  --maxw: 1140px;
  --shadow-sm: 0 1px 2px rgba(11, 35, 64, .06), 0 2px 8px rgba(11, 35, 64, .04);
  --shadow-md: 0 6px 24px rgba(11, 35, 64, .10);
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a { color: var(--navy); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-2); text-decoration-color: var(--accent); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }

.sr, .skip { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.skip:focus { left: 1rem; top: 1rem; width: auto; height: auto; padding: .75rem 1rem; background: var(--navy); color: #fff; z-index: 100; border-radius: 6px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(150%) blur(10px);
  -webkit-backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }

.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; color: inherit; }
.brand:hover { color: inherit; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--navy); color: var(--accent);
  font-family: var(--font-serif); font-weight: 700; font-size: 1.25rem;
  line-height: 1;
}
.brand-text { display: inline-flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-serif); font-size: 1.3rem; letter-spacing: .02em; }
.brand-sub { font-size: .78rem; color: var(--muted); }

.primary-nav ul { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.primary-nav a { text-decoration: none; color: var(--ink); font-weight: 500; padding: .4rem 0; position: relative; }
.primary-nav a:hover { color: var(--navy); }
.primary-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .2s ease;
}
.primary-nav a:hover::after { transform: scaleX(1); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: .5rem; }
.nav-toggle .bar { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: transform .2s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(4) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
    box-shadow: var(--shadow-md);
  }
  .primary-nav.open { max-height: 80vh; }
  .primary-nav ul { flex-direction: column; gap: 0; padding: .5rem 1.25rem 1.25rem; }
  .primary-nav li { border-bottom: 1px solid var(--line); }
  .primary-nav li:last-child { border-bottom: 0; }
  .primary-nav a { display: block; padding: 1rem 0; }
  .primary-nav a::after { display: none; }
  .brand-sub { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4rem);
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(184,148,83,.14), transparent 60%),
    radial-gradient(1000px 500px at -10% 10%, rgba(11,35,64,.07), transparent 55%),
    linear-gradient(180deg, #fbf9f3, #ffffff 60%);
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  display: inline-block;
  text-transform: uppercase; letter-spacing: .18em;
  font-size: .78rem; color: var(--accent-2); margin: 0 0 1rem;
  padding: .35rem .7rem; background: rgba(184,148,83,.10);
  border: 1px solid rgba(184,148,83,.25);
  border-radius: 999px;
}
.hero h1 {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.08;
  letter-spacing: -.01em; margin: 0 0 1.25rem; color: var(--navy);
  max-width: 22ch;
}
.hero .accent { color: var(--accent-2); font-style: italic; font-weight: 500; }
.lead { font-size: clamp(1rem, 1.4vw, 1.2rem); color: var(--ink); max-width: 64ch; margin: 0 0 1.75rem; }

.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 3rem; }
.btn {
  display: inline-block; padding: .85rem 1.4rem; border-radius: 999px;
  font-weight: 600; text-decoration: none; font-size: .95rem;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, color .15s ease, border-color .15s ease;
  border: 1px solid transparent;
}
.btn-primary { background: var(--navy); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--navy-2); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: var(--navy); border-color: rgba(11,35,64,.25); }
.btn-ghost:hover { color: var(--navy); border-color: var(--accent); background: #fff; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  margin: 0; padding: 1.5rem; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.stats > div { text-align: left; padding: .25rem .5rem; }
.stats dt { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.stats dd { font-family: var(--font-serif); font-size: 1.5rem; color: var(--navy); margin: .25rem 0 0; font-weight: 600; }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-dark { background: var(--bg-dark); color: #e8ecf5; }
.section-dark a { color: #fff; }
.section-dark .section-label { color: var(--accent); }
.section-dark h2 { color: #fff; }

.section-label {
  text-transform: uppercase; letter-spacing: .18em;
  font-size: .78rem; color: var(--accent-2); margin: 0 0 .75rem; font-weight: 600;
}
h2 {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem); line-height: 1.15;
  letter-spacing: -.005em; color: var(--navy); margin: 0 0 1rem;
  max-width: 24ch;
}
.section-head { margin-bottom: 2.5rem; max-width: 720px; }
.section-intro { color: var(--muted); font-size: 1.05rem; margin: .5rem 0 0; }
.section-footnote { margin-top: 2rem; color: var(--muted); font-size: .92rem; }

.cols { display: grid; grid-template-columns: 1fr 2fr; gap: 2.5rem; align-items: start; }
@media (max-width: 800px) { .cols { grid-template-columns: 1fr; gap: 1.25rem; } }
.col-body p + p { margin-top: 1em; }

.section-cta { margin-top: 2rem; }
.link-arrow { text-decoration: none; font-weight: 600; color: var(--navy); border-bottom: 2px solid var(--accent); padding-bottom: 2px; }
.link-arrow:hover { color: var(--accent-2); }
.section-dark .link-arrow { color: #fff; border-color: var(--accent); }

/* ---------- Papers ---------- */
.papers { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.paper {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.4rem; box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.paper:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: rgba(184,148,83,.5); }
.paper-no { display: inline-block; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); font-weight: 700; }
.paper h3 { font-family: var(--font-serif); font-weight: 600; font-size: 1.1rem; margin: .4rem 0 .6rem; color: var(--navy); line-height: 1.3; }
.paper-meta { color: var(--muted); font-size: .9rem; margin: 0; }

/* ---------- Timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--accent); padding-left: 1.25rem; }
.timeline li {
  display: grid; grid-template-columns: 5rem 1fr; gap: 1rem; align-items: baseline;
  padding: .65rem 0; border-bottom: 1px dashed var(--line);
}
.timeline li:last-child { border-bottom: 0; }
.timeline .year { font-family: var(--font-serif); font-weight: 600; color: var(--navy); font-size: 1.15rem; }
.timeline .city { font-weight: 600; }
.timeline .host { grid-column: 2; font-size: .9rem; color: var(--muted); }
@media (max-width: 520px) {
  .timeline li { grid-template-columns: 4rem 1fr; }
  .timeline .host { grid-column: 1 / -1; padding-left: 0; }
}

/* ---------- Prize ---------- */
.prize-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
@media (max-width: 800px) { .prize-grid { grid-template-columns: 1fr; } }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem; box-shadow: var(--shadow-sm);
}
.card-info { background: var(--navy); color: #e8ecf5; border-color: var(--navy); }
.card-info a { color: #fff; }
.card-info .card-kicker { color: var(--accent); }
.card-kicker { margin: 0 0 1rem; font-size: .78rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent-2); font-weight: 700; }
.prize-list { list-style: none; margin: 0; padding: 0; }
.prize-list li { display: flex; justify-content: space-between; padding: .6rem 0; border-bottom: 1px solid var(--line); }
.prize-list li:last-child { border-bottom: 0; }
.prize-list strong { font-family: var(--font-serif); font-size: 1.15rem; color: var(--navy); }
.facts { list-style: none; padding: 0; margin: 0 0 1rem; }
.facts li { padding: .35rem 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.facts li:last-child { border-bottom: 0; }

/* ---------- Members ---------- */
.members { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .75rem 1.25rem; }
.members li { padding: .85rem 1rem; border-left: 3px solid var(--accent); background: #fff; border-radius: 0 6px 6px 0; border: 1px solid var(--line); border-left-width: 3px; border-left-color: var(--accent); }
.members strong { display: block; color: var(--navy); font-weight: 600; font-size: .98rem; }
.members span { display: block; color: var(--muted); font-size: .88rem; margin-top: .1rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
@media (max-width: 700px) { .contact-grid { grid-template-columns: 1fr; gap: 1.5rem; } }
address { font-style: normal; line-height: 1.7; color: #e8ecf5; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: .6rem 0; border-bottom: 1px solid rgba(255,255,255,.12); display: grid; grid-template-columns: 9rem 1fr; gap: .5rem; align-items: baseline; }
.contact-list li:last-child { border-bottom: 0; }
.contact-list span { text-transform: uppercase; letter-spacing: .12em; font-size: .76rem; color: var(--accent); }
.contact-list a { color: #fff; text-decoration: none; border-bottom: 1px solid transparent; }
.contact-list a:hover { border-bottom-color: var(--accent); }
@media (max-width: 480px) { .contact-list li { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { background: #081b31; color: #c9d2e0; padding: 2.5rem 0; }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; gap: 1.5rem; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: .75rem; color: #fff; }
.footer-brand small { color: #99a4b8; }
.footer-links { list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; justify-self: center; }
.footer-links a { color: #c9d2e0; text-decoration: none; }
.footer-links a:hover { color: var(--accent); }
.footer-note { margin: 0; color: #8793a8; font-size: .82rem; grid-column: 1 / -1; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.08); }
@media (max-width: 800px) {
  .footer-inner { grid-template-columns: 1fr; text-align: left; }
  .footer-links { justify-self: start; flex-wrap: wrap; }
}

/* ---------- Legal pages ---------- */
.legal { padding: 4rem 0; max-width: 760px; }
.legal h1 { font-family: var(--font-serif); color: var(--navy); margin-top: 0; font-size: 2rem; }
.legal h2 { font-size: 1.25rem; margin-top: 2rem; }
.legal p { color: var(--ink); }