:root {
  --ink: #102a33;
  --ink-soft: #38545d;
  --paper: #f6f7f4;
  --white: #ffffff;
  --panel: #e8f0f1;
  --blue: #176c87;
  --cyan: #24aebb;
  --lime: #d8ee62;
  --gold: #f3c85d;
  --line: #cbd6d8;
  --shadow: 0 18px 45px rgba(16, 42, 51, .09);
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #e8edef; color: var(--ink); font: 16px/1.55 "IBM Plex Sans", "Segoe UI", sans-serif; }
a { color: inherit; }
.skip-link { position: fixed; top: -5rem; left: 1rem; z-index: 30; padding: .7rem 1rem; background: var(--white); }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(246, 247, 244, .95); backdrop-filter: blur(14px); }
.header-inner, .footer-inner { width: min(calc(100% - 40px), var(--max)); min-height: 72px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand strong { display: block; font-size: 1.03rem; line-height: 1.1; letter-spacing: .01em; }
.brand small { display: block; margin-top: .2rem; color: #61777e; font-size: .64rem; line-height: 1.1; text-transform: uppercase; letter-spacing: .12em; }
.monogram { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px; background: var(--ink); color: var(--lime); font-weight: 700; letter-spacing: -.06em; }
nav { display: flex; align-items: center; gap: 1.4rem; }
nav a { font-size: .83rem; font-weight: 650; text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--blue); }
.menu-toggle { display: none; }

.page-shell { width: min(calc(100% - 40px), var(--max)); margin: 22px auto 34px; background: var(--paper); box-shadow: var(--shadow); }
section { padding: 3.4rem; border-bottom: 1px solid var(--line); }
.eyebrow, .label, .card-index { margin: 0 0 .75rem; color: var(--blue); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -.025em; }
h1 { max-width: 12ch; font-size: clamp(2.9rem, 5vw, 4.8rem); }
h2 { font-size: clamp(1.85rem, 3vw, 2.75rem); }
h3 { font-size: 1.45rem; }
p { margin: .85rem 0 0; }
.arrow-link { display: inline-block; margin-top: 1rem; color: var(--blue); font-weight: 700; text-underline-offset: .25em; }
.arrow-link::after { content: " →"; }

.intro { padding-top: 3.2rem; padding-bottom: 3.2rem; display: grid; grid-template-columns: 1.25fr .75fr; gap: 3rem; align-items: end; }
.intro-copy > p:last-child { max-width: 66ch; color: var(--ink-soft); font-size: 1.08rem; }
.about-brief { padding: 1.55rem; border: 1px solid var(--line); border-top: 5px solid var(--cyan); background: var(--white); }
.about-brief h2 { font-size: 1.42rem; }
.about-brief p:not(.label) { color: var(--ink-soft); }

.dashboard { background: var(--white); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
.section-head > p { max-width: 40ch; margin: 0; color: var(--ink-soft); }
.event-layout { display: grid; grid-template-columns: 1.35fr .65fr; gap: 1rem; }
.feature-card, .next-card, .program-card { border: 1px solid var(--line); background: var(--paper); }
.feature-card { padding: 2.25rem; border-color: var(--ink); background: var(--ink); color: var(--white); }
.feature-topline { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 2.7rem; }
.event-state { padding: .4rem .65rem; border-radius: 3px; background: var(--lime); color: var(--ink); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.feature-topline time { color: #b9d1d8; font-weight: 600; }
.feature-card h3 { max-width: 13ch; font-size: clamp(2.4rem, 4.4vw, 4rem); }
.feature-subtitle { max-width: 46ch; color: var(--lime); font-weight: 600; font-size: 1.05rem; }
.feature-card > p:not(.feature-subtitle) { max-width: 62ch; color: #c6d7dc; }
.audience-tags { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.55rem; }
.audience-tags span { padding: .3rem .55rem; border: 1px solid #4c6872; border-radius: 99px; color: #dbe7e9; font-size: .74rem; }
.card-actions { display: flex; align-items: center; gap: 1.2rem; margin-top: 2rem; }
.card-actions > span { color: #9fb8c0; font-size: .76rem; }
.button { display: inline-block; padding: .75rem 1rem; border: 1px solid var(--ink); border-radius: 4px; font-weight: 700; text-decoration: none; }
.button.primary { border-color: var(--lime); background: var(--lime); color: var(--ink); }

.next-card { padding: 1.65rem; display: grid; grid-template-columns: 62px 1fr; gap: 1.2rem; align-content: start; background: #eff4f3; }
.date-block { height: 74px; display: grid; grid-template-columns: 1fr; place-content: center; border: 1px solid var(--ink); text-align: center; }
.date-block strong { font-size: 1.7rem; line-height: 1; }
.date-block span { margin-top: .15rem; font-size: .65rem; font-weight: 700; line-height: 1.05; text-transform: uppercase; }
.next-card h3 { font-size: 1.55rem; }
.next-card p { color: var(--ink-soft); }
.next-card .eyebrow { margin-top: .05rem; }
.small-note { padding-top: .8rem; border-top: 1px solid var(--line); font-size: .78rem; }
.inline-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.inline-links .arrow-link { font-size: .84rem; }

.programs { background: var(--paper); }
.program-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.program-card { min-height: 245px; padding: 1.65rem; display: flex; flex-direction: column; }
.program-card.soc { border-top: 5px solid var(--cyan); }
.program-card.weekend { border-top: 5px solid var(--gold); }
.program-card > p:not(.card-index,.meta) { color: var(--ink-soft); }
.program-card .meta { margin-top: auto; padding-top: 1.2rem; color: var(--ink-soft); font-size: .8rem; }
.program-card .arrow-link { margin-top: .8rem; font-size: .85rem; }
.status-chip { align-self: flex-start; margin-top: auto; padding: .35rem .55rem; background: #e1e8e8; color: #50676f; font-size: .72rem; font-weight: 650; }
.program-footnote { max-width: 82ch; color: var(--ink-soft); font-size: .88rem; }

.technecium { display: grid; grid-template-columns: .7fr 1.3fr; gap: 3rem; background: var(--panel); }
.tech-copy > p { margin-top: 0; color: var(--ink-soft); font-size: 1.03rem; }
.tech-links { margin-top: 1.5rem; border-top: 1px solid var(--line); }
.tech-links a { padding: .9rem 0; display: grid; grid-template-columns: 1fr 1.1fr; gap: 1rem; border-bottom: 1px solid var(--line); text-decoration: none; }
.tech-links a:hover strong, .tech-links a:focus-visible strong { color: var(--blue); }
.tech-links span { color: var(--ink-soft); font-size: .85rem; }

footer { background: var(--ink); color: var(--white); }
.footer-inner { min-height: 110px; }
.footer-brand .monogram { background: var(--white); color: var(--ink); }
.footer-brand small { color: #a8bec5; }
.footer-inner > p { margin: 0; color: #a8bec5; font-size: .76rem; }

/* Event detail */
.event-detail section { padding-top: 3.2rem; padding-bottom: 3.2rem; }
.event-hero { background: var(--ink); color: var(--white); }
.event-hero h1 { max-width: 14ch; }
.event-hero .eyebrow { color: var(--lime); }
.detail-subtitle { max-width: 58ch; color: #b8d4db; font-size: 1.12rem; font-weight: 600; }
.event-facts { margin-top: 3rem; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #48636c; }
.event-facts div { padding: 1.3rem 1.3rem 0 0; }
.event-facts strong { display: block; color: var(--lime); font-size: 1.65rem; }
.event-facts span { color: #b8cbd0; font-size: .8rem; }
.event-summary, .history-compact { display: grid; grid-template-columns: .8fr 1.2fr; gap: 3rem; }
.event-summary > div:last-child p:first-child, .history-compact > div:last-child > p:first-child { margin-top: 0; }
.event-summary > div:last-child, .history-compact > div:last-child { color: var(--ink-soft); font-size: 1.04rem; }
.detail-grid { padding: 0 !important; display: grid; grid-template-columns: repeat(3, 1fr); background: var(--white); }
.detail-grid article { padding: 2rem; border-right: 1px solid var(--line); }
.detail-grid article:last-child { border-right: 0; }
.detail-grid h2 { font-size: 1.55rem; }
.detail-grid article > p:last-child { color: var(--ink-soft); }
.programme { background: var(--paper); }
.programme-list { border-top: 1px solid var(--ink); }
.programme-list article { padding: 1.25rem 0; display: grid; grid-template-columns: 150px 1fr; gap: 2rem; border-bottom: 1px solid var(--line); }
.programme-list time { color: var(--blue); font-weight: 700; text-transform: uppercase; }
.programme-list h3 { font-size: 1.25rem; }
.programme-list p { max-width: 78ch; color: var(--ink-soft); }
.history-compact { background: var(--panel); }
.source-list { margin-top: 1.4rem; border-top: 1px solid var(--line); }
.source-list a { padding: .8rem 0; display: grid; grid-template-columns: 56px 1fr; gap: 1rem; border-bottom: 1px solid var(--line); text-decoration: none; }
.source-list span { color: var(--blue); font-size: .75rem; font-weight: 700; }
.source-list a:hover strong, .source-list a:focus-visible strong { color: var(--blue); }

@media (max-width: 900px) {
  section { padding: 3.2rem 2rem; }
  .menu-toggle { display: block; padding: .45rem .7rem; border: 1px solid var(--ink); background: transparent; font-weight: 700; }
  nav { display: none; position: absolute; top: 71px; left: 0; right: 0; padding: 1rem 20px; border-bottom: 1px solid var(--line); background: var(--paper); flex-direction: column; align-items: flex-start; }
  nav.open { display: flex; }
  .intro, .event-layout, .technecium, .event-summary, .history-compact { grid-template-columns: 1fr; gap: 2rem; }
  .feature-topline { margin-bottom: 2rem; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-grid article { border-right: 0; border-bottom: 1px solid var(--line); }
}

@media (max-width: 620px) {
  body { font-size: 15.5px; }
  .page-shell { width: 100%; margin: 0; box-shadow: none; }
  .header-inner, .footer-inner { width: min(calc(100% - 28px), var(--max)); }
  .brand small { display: none; }
  section { padding: 2.8rem 1.2rem; }
  h1 { font-size: 2.65rem; }
  .section-head, .feature-topline, .card-actions { align-items: flex-start; flex-direction: column; }
  .program-grid { grid-template-columns: 1fr; }
  .program-card { min-height: 240px; }
  .next-card { grid-template-columns: 54px 1fr; padding: 1.25rem; }
  .date-block { height: 66px; }
  .tech-links a { grid-template-columns: 1fr; gap: .2rem; }
  .footer-inner { padding: 1.5rem 0; align-items: flex-start; flex-direction: column; }
  .event-facts { grid-template-columns: 1fr; }
  .event-facts div { padding: .9rem 0; border-bottom: 1px solid #48636c; }
  .programme-list article { grid-template-columns: 1fr; gap: .35rem; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }