/* BFF11 conference site — shared styles (UMN maroon & gold palette) */
:root {
  --ink: #1f1a1c;
  --ink-soft: #423a3d;
  --muted: #6b6164;
  --bg: #fbf9f6;
  --surface: #ffffff;
  --line: #e8e2dc;
  --maroon: #7a0019;
  --maroon-dark: #4f0010;
  --maroon-soft: #f6e9ec;
  --gold: #ffcc33;
  --gold-deep: #c99700;
  --gold-soft: #fff5d6;
  --radius: 14px;
  --maxw: 1080px;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--maroon); text-underline-offset: 3px; }
a:hover { color: var(--maroon-dark); }
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; color: var(--ink); margin: 0 0 .5em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Draft notice */
.draft-bar {
  background: var(--gold-soft); color: #6b5000; font-size: .85rem; text-align: center;
  padding: 8px 16px; border-bottom: 1px solid #f3e1a4;
}

/* Header / nav */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 3px solid var(--maroon);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand:hover { color: var(--ink); }
.brand a { display: flex; align-items: center; text-decoration: none; }
.brand img { height: 54px; width: auto; }
.brand span { font-family: var(--serif); font-size: 1.3rem; font-weight: 700; color: var(--maroon); letter-spacing: .01em; }
.nav { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav a {
  display: block; padding: 8px 12px; border-radius: 8px;
  color: var(--ink-soft); text-decoration: none; font-size: .95rem; font-weight: 500;
}
.nav a:hover { color: var(--maroon); background: var(--maroon-soft); }
.nav a[aria-current="page"] { color: var(--maroon); background: var(--maroon-soft); font-weight: 600; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--line); color: var(--ink);
  border-radius: 8px; padding: 6px 10px; font-size: .95rem; cursor: pointer;
}
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: 75px;
    flex-direction: column; background: #fff; padding: 8px 16px 16px;
    border-bottom: 3px solid var(--maroon); box-shadow: 0 8px 16px rgba(0,0,0,.06);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; }
}

/* Hero */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1000px 480px at 88% -10%, #a3243d 0%, transparent 60%),
              linear-gradient(155deg, var(--maroon-dark) 0%, var(--maroon) 60%, #8e1a2f 100%);
  color: #fff;
  padding: 84px 0 92px;
}
.hero .motif { position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 500px; opacity: .3; pointer-events: none; }
.hero .wrap { position: relative; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 600; color: var(--gold); margin-bottom: 18px; }
.hero h1 { color: #fff; font-size: clamp(3.4rem, 9vw, 6rem); font-weight: 700; margin: 0; letter-spacing: -.01em; }
.hero .subtitle { font-family: var(--serif); font-size: clamp(1.25rem, 2.6vw, 1.7rem); color: #f7e7ea; margin: 6px 0 26px; max-width: 34ch; }
.hero .meta { display: flex; flex-wrap: wrap; gap: 10px 28px; font-size: 1.08rem; color: #fff; margin-bottom: 34px; }
.hero .meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero .meta svg { width: 18px; height: 18px; stroke: var(--gold); flex: none; }

.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 600; text-decoration: none; font-size: .98rem; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--gold); color: #2a1a00; }
.btn-primary:hover { background: #ffd65c; color: #2a1a00; }
.btn-ghost { border: 1px solid rgba(255,255,255,.5); color: #fff; margin-left: 8px; }
.btn-ghost:hover { background: rgba(255,255,255,.1); color: #fff; }

.hero h1.lockup { display: flex; align-items: flex-end; gap: 14px; line-height: 1; margin-bottom: 14px; }
.hero h1.lockup img { height: clamp(96px, 16vw, 150px); width: auto; }
.hero h1.lockup a { display: block; }
.hero h1.lockup span { font-family: var(--serif); color: var(--gold); font-size: clamp(3.6rem, 10vw, 6.2rem); font-weight: 700; margin-bottom: -6px; }

/* Page header (inner pages) */
.page-head {
  background: linear-gradient(155deg, var(--maroon-dark) 0%, var(--maroon) 100%);
  color: #fff; padding: 56px 0 50px;
}
.page-head h1 { color: #fff; font-size: clamp(2.2rem, 5vw, 3rem); margin: 0 0 8px; }
.page-head p { color: #f2dde1; margin: 0; max-width: 60ch; }

/* Sections */
section.block { padding: 72px 0; }
section.block + section.block { border-top: 1px solid var(--line); }
.lead { font-size: 1.12rem; color: var(--ink-soft); max-width: 68ch; }
.section-intro { color: var(--muted); max-width: 64ch; margin-bottom: 32px; }

.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: 0 1px 2px rgba(16,24,40,.04);
}
.card h3 { margin-bottom: .35em; }
.card .label { text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; font-weight: 700; color: var(--maroon); margin-bottom: 6px; }
.card .value { font-family: var(--serif); font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
.card .sub { color: var(--muted); font-size: .92rem; margin-top: 4px; }
.card.accent { border-top: 4px solid var(--gold); }

.tba {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  background: var(--gold-soft); color: #7a5b00; border: 1px solid #f0dc9a; padding: 2px 8px; border-radius: 999px;
  vertical-align: middle;
}

/* Dates table */
.dates { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.dates th, .dates td { text-align: left; padding: 14px 20px; border-bottom: 1px solid var(--line); }
.dates th { background: #f5f0ea; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 600; }
.dates tr:last-child td { border-bottom: 0; }
.dates tr.highlight td { background: var(--maroon-soft); color: var(--maroon); }
.dates td:last-child { white-space: nowrap; }

/* Committee lists */
.people { list-style: none; padding: 0; margin: 0; }
.people li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.people li:last-child { border-bottom: 0; }
.people .name { font-weight: 600; }
.people a.name { text-decoration: none; border-bottom: 1px solid rgba(122,0,25,.3); }
.people a.name:hover { border-bottom-color: var(--maroon); }
.people .aff { display: block; color: var(--muted); font-size: .94rem; }
.people .more { color: var(--muted); font-style: italic; font-size: .94rem; }

/* Host block */
.host-logos { display: flex; flex-direction: column; gap: 22px; align-items: flex-start; }
.host-logos img.umn { width: 340px; max-width: 100%; }

/* Callout */
.callout {
  background: var(--maroon-soft); border: 1px solid #ecd3d9; border-radius: var(--radius); padding: 22px 24px; color: var(--ink-soft);
}
.callout strong { color: var(--ink); }

/* Two-column */
.split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 28px; } }

/* Footer */
.site-footer { background: #f3eee8; color: var(--ink-soft); padding: 44px 0 36px; font-size: .92rem; border-top: 4px solid var(--maroon); }
.site-footer .cols { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 32px; align-items: start; }
.site-footer h4 { color: var(--ink); font-family: var(--serif); font-size: 1.05rem; margin: 0 0 10px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 4px 0; }
.site-footer img.umn { width: 260px; max-width: 100%; margin-bottom: 12px; }
.site-footer .fine { border-top: 1px solid #e0d8cf; margin-top: 28px; padding-top: 16px; color: var(--muted); font-size: .85rem; }
@media (max-width: 760px) { .site-footer .cols { grid-template-columns: 1fr; } }

@media (max-width: 600px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  section.block { padding: 52px 0; }
  .hero { padding: 60px 0 68px; }
  .hero .motif { display: none; }
  .btn-ghost { margin-left: 0; margin-top: 10px; }
  .brand img { height: 44px; }
  .dates th, .dates td { padding: 12px 14px; }
  .dates td:last-child { white-space: normal; }
}