/* HSA root site. Palette from Color Hunt: #006199 #8ACFF8 #F4EB6C #FFD444 */
:root {
  --blue: #006199;
  --sky: #8ACFF8;
  --lemon: #F4EB6C;
  --gold: #FFD444;
  --ink: #06283D;        /* dark text, derived from the blue */
  --muted: #35586E;      /* secondary text on light backgrounds */
  --paper: #F3FAFF;      /* page tint, derived from the sky blue */
  --white: #FFFFFF;
  --display: 'Bricolage Grotesque', system-ui, sans-serif;
  --body: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 18px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.on-blue :focus-visible, .site-header :focus-visible { outline-color: var(--gold); }

.wrap { width: min(1120px, 100% - 48px); margin-inline: auto; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 20;
  background: var(--gold); color: var(--ink); padding: 10px 16px; border-radius: 8px; font-weight: 600;
}
.skip:focus { top: 12px; }

/* Header */
.site-header { background: var(--blue); color: var(--white); position: sticky; top: 0; z-index: 10; }
.bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding: 14px 0; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--white); text-decoration: none; }
.brand-mark {
  display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 10px;
  background: var(--gold); color: var(--ink); font-family: var(--display); font-weight: 800; font-size: 16px; letter-spacing: -0.5px;
}
.brand-name { font-family: var(--display); font-weight: 700; font-size: 18px; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 20px; list-style: none; margin: 0; padding: 0; }
.nav a:not(.btn) { color: var(--white); text-decoration: none; padding: 10px 2px; font-weight: 500; border-bottom: 2px solid transparent; }
.nav a:not(.btn):hover, .nav a[aria-current="page"] { border-bottom-color: var(--gold); color: var(--white); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 24px;
  background: var(--gold); color: var(--ink); border: 2px solid var(--gold); border-radius: 12px;
  font: 600 17px/1.2 var(--body); text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--lemon); border-color: var(--lemon); color: var(--ink); }
.btn-small { min-height: 44px; padding: 8px 18px; font-size: 16px; }
.btn-ghost { background: transparent; color: var(--white); border-color: var(--sky); }
.btn-ghost:hover { background: rgba(138, 207, 248, 0.18); border-color: var(--white); color: var(--white); }
.btn-blue { background: var(--blue); border-color: var(--blue); color: var(--white); }
.btn-blue:hover { background: var(--ink); border-color: var(--ink); color: var(--white); }

/* Hero: blueprint grid */
.hero {
  background-color: var(--blue);
  background-image:
    linear-gradient(rgba(138, 207, 248, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 207, 248, 0.16) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--white);
  padding: 88px 0 96px;
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); gap: 56px; align-items: center; }
.eyebrow { font-weight: 600; font-size: 14px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--lemon); margin: 0 0 20px; }
h1, h2, h3 { font-family: var(--display); font-weight: 800; line-height: 1.04; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(44px, 7vw, 84px); }
h1 .accent { color: var(--lemon); }
.lede { font-size: clamp(19px, 2.2vw, 23px); line-height: 1.5; color: var(--white); max-width: 36em; margin: 24px 0 36px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* Next session card */
.next {
  background: var(--lemon); color: var(--ink); border-radius: var(--radius); padding: 32px;
  box-shadow: 10px 10px 0 var(--gold);
}
.next .label { font-size: 13px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; margin: 0 0 14px; }
.next .date { display: flex; align-items: baseline; gap: 14px; margin-bottom: 8px; }
.next .day { font-family: var(--display); font-weight: 800; font-size: 96px; line-height: 0.9; letter-spacing: -0.04em; }
.next .month { font-family: var(--display); font-weight: 800; font-size: 36px; color: var(--blue); }
.next h2 { font-size: 24px; line-height: 1.15; margin: 14px 0 12px; }
.next p { margin: 4px 0; }
.next .btn { margin-top: 20px; }

/* Sections */
.section { padding: 88px 0; }
.section h2 { font-size: clamp(32px, 4.5vw, 52px); margin-bottom: 16px; }
.section .intro { max-width: 40em; color: var(--muted); font-size: 20px; margin: 0 0 40px; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.card { background: var(--white); border: 2px solid var(--sky); border-radius: var(--radius); padding: 28px; }
.card .num { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--blue); color: var(--white); font-family: var(--display); font-weight: 800; margin-bottom: 18px; }
.card h3 { font-size: 24px; margin-bottom: 10px; }
.card p { margin: 0; color: var(--muted); }

.topics { display: flex; flex-wrap: wrap; gap: 12px; list-style: none; margin: 0; padding: 0; }
.topics li { background: var(--white); border: 2px solid var(--blue); color: var(--blue); border-radius: 999px; padding: 10px 20px; font-weight: 600; }

.agenda { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 12px; max-width: 640px; }
.agenda li { display: grid; grid-template-columns: 76px 1fr; gap: 16px; align-items: baseline; }
.agenda .t { font-weight: 600; color: var(--blue); }

.about { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 56px; align-items: start; }
.about p { margin: 0 0 16px; }
.facts { background: var(--blue); color: var(--white); border-radius: var(--radius); padding: 32px; display: grid; gap: 22px; }
.fact b { display: block; font-family: var(--display); font-size: 40px; line-height: 1; color: var(--gold); margin-bottom: 4px; }

/* Subscribe */
.subscribe { background: var(--blue); color: var(--white); }
.subscribe .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.subscribe h2 { color: var(--white); }
.subscribe h2 .accent { color: var(--lemon); }
.subscribe p { margin: 0 0 12px; }
.form-card { background: var(--white); color: var(--ink); border-radius: var(--radius); padding: 28px; }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-weight: 600; font-size: 16px; }
.field input {
  min-height: 48px; padding: 10px 14px; border: 2px solid var(--blue); border-radius: 10px; font: inherit; color: var(--ink); background: var(--white);
}
.consent { font-size: 15px; color: var(--muted); margin: 14px 0 0; }
.notice { background: var(--lemon); color: var(--ink); border-radius: 12px; padding: 16px 18px; margin: 0; }

/* Prose pages */
.page-head { background: var(--blue); color: var(--white); padding: 64px 0 56px; }
.page-head h1 { font-size: clamp(36px, 5vw, 60px); }
.page-head p { margin: 16px 0 0; color: var(--white); max-width: 40em; }
.prose { padding: 64px 0 88px; }
.prose .wrap { max-width: 760px; }
.prose h2 { font-size: 28px; margin: 40px 0 12px; }
.prose p, .prose li { color: var(--ink); }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.draft-note { background: var(--lemon); border-radius: 12px; padding: 16px 18px; margin-bottom: 32px; }

/* Footer */
.site-footer { background: var(--ink); color: var(--white); padding: 40px 0; }
.site-footer a { color: var(--sky); }
.site-footer a:hover { color: var(--white); }
.foot { display: grid; grid-template-columns: 1fr auto; gap: 16px 40px; align-items: start; }
.foot p { margin: 0; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 24px; list-style: none; margin: 0; padding: 0; }
.foot-note { grid-column: 1 / -1; color: var(--sky); font-size: 15px; }

@media (max-width: 880px) {
  .hero { padding: 56px 0 64px; }
  .hero-grid, .about, .subscribe .wrap { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .section { padding: 64px 0; }
  .foot { grid-template-columns: minmax(0, 1fr); }
  .next { box-shadow: 6px 6px 0 var(--gold); }
}
@media (max-width: 520px) {
  .wrap { width: calc(100% - 32px); }
  .brand-name { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}