:root {
  --cream: #faf6ef;
  --paper: #fffdf9;
  --ink: #2b2622;
  --muted: #6f675e;

  --rust: #b8430a;
  --teal: #14746f;

  --line: rgba(43, 38, 34, .14);
  --line2: rgba(43, 38, 34, .07);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Inter Tight", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  background: var(--cream);
  color: var(--ink);
  overflow-x: hidden;
  background-image: radial-gradient(rgba(43, 38, 34, .055) 1px, transparent 1px);
  background-size: 4px 4px;
}

h1, h2, h3 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.12;
  color: var(--ink);
}

a { color: inherit; }
img { display: block; max-width: 100%; }
a:focus-visible { outline: 2px solid var(--rust); outline-offset: 2px; }

section[id] { scroll-margin-top: 70px; }

.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--rust);
  margin-bottom: 10px;
}

.muted { color: var(--muted); line-height: 1.6; }

/* ── Top Banner ── */
.top-banner {
  background: var(--rust);
  color: var(--cream);
  text-align: center;
  padding: 10px 16px;
  font-size: 14px;
}
.top-banner strong { font-family: "JetBrains Mono", monospace; font-weight: 700; }
.top-banner a { color: var(--cream); text-decoration: underline; font-weight: 600; }

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--cream);
  border-bottom: 1px solid var(--line);
}
.nav-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
}
.nav-brand img { height: 26px; width: auto; }
.nav-links { display: flex; gap: 26px; font-size: 14px; }
.nav-links a {
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav-links a:hover { color: var(--rust); border-color: var(--rust); }
.nav-cta { font-size: 14px !important; padding: 9px 18px !important; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  border-radius: 2px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--rust);
  transition: background .15s, color .15s;
}
.btn--primary { background: var(--rust); color: var(--paper); }
.btn--primary:hover { background: #96370a; }
.btn--ghost { background: transparent; color: var(--rust); }
.btn--ghost:hover { background: rgba(184, 67, 10, .08); }

/* ── Hero ── */
.hero { padding: 72px 20px 60px; max-width: 1100px; margin: 0 auto; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(184, 67, 10, .4);
  background: rgba(184, 67, 10, .08);
  border-radius: 2px;
  padding: 7px 16px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--rust);
  margin-bottom: 24px;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--rust); }
.hero h1 { font-size: clamp(28px, 4.4vw, 42px); margin: 0 0 16px; }
.hero-subtitle { font-size: 17px; line-height: 1.6; color: var(--muted); max-width: 62ch; }
.hero-subtitle strong { color: var(--ink); }
.hero-actions { display: flex; gap: 14px; margin: 28px 0 0; flex-wrap: wrap; }

/* ── Updates band ── */
.band {
  padding: 56px 20px;
  text-align: center;
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.band-shell { max-width: 640px; margin: 0 auto; }
.band h2 { font-size: clamp(22px, 3vw, 28px); margin-bottom: 12px; }
.band-text { color: var(--muted); line-height: 1.6; margin-bottom: 24px; }
.band-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.section + .band, .band + .band { margin-top: 64px; }

/* ── Sections ── */
.section { max-width: 1100px; margin: 0 auto; padding: 64px 20px 0; }
.section h2 { font-size: clamp(22px, 3vw, 28px); margin-bottom: 12px; }

.subhead {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: .04em;
  margin: 32px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line2);
}

/* ── Slides card ── */
.talk-card {
  display: grid;
  grid-template-columns: 2fr 3fr;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  text-decoration: none;
  transition: border-color .15s;
}
.talk-card:hover { border-color: var(--rust); }
.talk-card img { width: 100%; height: 100%; min-height: 220px; object-fit: cover; }
.code-art {
  margin: 0;
  padding: 28px;
  background: #1f1b18;
  color: #e9e1d6;
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  line-height: 1.6;
  overflow: hidden;
}
.code-art .k { color: #f0b48c; }
.code-art .s { color: #9fd3a8; }
.code-art .c { color: #9a8f84; }
.talk-copy { padding: 32px; display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.talk-copy .btn { margin-top: 16px; }

/* ── Material box ── */
.material-box {
  border: 1px dashed var(--rust);
  border-radius: 2px;
  background: var(--paper);
  padding: 48px 20px;
  text-align: center;
}
.material-box h2 { color: var(--rust); }

/* ── Quick links ── */
.link-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.link-list a { color: var(--rust); text-decoration: none; font-weight: 600; font-size: 15px; }
.link-list a:hover { color: #96370a; text-decoration: underline; }

/* ── Schools ── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 20px;
  transition: border-color .15s;
}
.card:hover { border-color: var(--rust); }
.card h3 { font-size: 18px; margin-bottom: 12px; }
.card ul { padding-left: 18px; color: var(--muted); font-size: 14px; line-height: 1.7; }

/* ── Footer ── */
.site-footer {
  margin-top: 80px;
  padding: 48px 20px 32px;
  background: var(--paper);
  border-top: 1px solid var(--line);
}
.footer-content {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}
.footer-section { display: flex; flex-direction: column; gap: 10px; }
.footer-section h3 { font-size: 22px; margin-bottom: 2px; }
.footer-section h4 {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: .04em;
}
.footer-tagline { font-size: 14px; font-weight: 600; }
.footer-link { color: var(--rust); text-decoration: none; font-weight: 600; font-size: 13.5px; }
.footer-link:hover { color: #96370a; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 13.5px; transition: color .15s; }
.footer-links a:hover { color: var(--rust); }
.footer-divider { max-width: 1100px; margin: 32px auto 0; height: 1px; background: var(--line); }
.footer-credit {
  max-width: 1100px;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  font-family: "JetBrains Mono", monospace;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .top-banner { font-size: 12px; padding: 8px 12px; }
  .hero { padding: 56px 16px 48px; }
  .hero-subtitle { font-size: 16px; }
  .band { padding: 48px 16px; }
  .section { padding: 48px 16px 0; }
  .site-footer { padding: 40px 16px 48px; margin-top: 56px; }
  .footer-content { grid-template-columns: 1fr; gap: 28px; }
  .talk-card { grid-template-columns: 1fr; }
  .talk-card img { min-height: 160px; max-height: 200px; }
  .talk-copy { padding: 24px 20px; }
}

@media (max-width: 480px) {
  .btn { padding: 11px 20px; font-size: 14px; }
}