:root {
  --bg: #f7f3ec;
  --card: #fffdf9;
  --ink: #2b2620;
  --muted: #6b6259;
  --accent: #7a4a2a;
  --accent-soft: #e9d8c8;
  --border: #e3dbd0;
  --max: 68rem;
  font-size: 100%;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  line-height: 1.6;
}

a { color: var(--accent); }
a:hover, a:focus-visible { text-decoration-thickness: 2px; }

.wrap {
  width: min(var(--max), 100% - 2.5rem);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0.25rem;
}
.skip-link:focus { left: 0.5rem; z-index: 10; }

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(247, 243, 236, 0.92);
  position: sticky;
  top: 0;
  backdrop-filter: blur(6px);
  z-index: 5;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
  flex-wrap: wrap;
}
.wordmark {
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink);
}
.wordmark b { color: var(--accent); }
.header-nav {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.95rem;
}
.header-nav a { text-decoration: none; color: var(--muted); }
.header-nav a:hover, .header-nav a:focus-visible { color: var(--accent); text-decoration: underline; }

.hero {
  padding-block: 3.5rem 2.5rem;
  max-width: 46rem;
}
.eyebrow {
  margin: 0 0 0.75rem;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
h1 {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  line-height: 1.12;
  margin: 0 0 1rem;
  font-weight: 600;
}
.hero-deck {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}
.button-link {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.7rem 1.3rem;
  border-radius: 999px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.95rem;
}
.button-link:hover, .button-link:focus-visible { background: #5e3820; }

.section { padding-block: 2.25rem; border-top: 1px solid var(--border); }
h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.5rem;
  font-weight: 600;
}
.section-deck { color: var(--muted); margin: 0 0 1.75rem; max-width: 46rem; }

.talk {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 1.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.talk-media {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--accent-soft);
  border-radius: 0.6rem;
  overflow: hidden;
}
.talk-media iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.talk-meta {
  margin: 0 0 0.4rem;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
h3 {
  font-size: 1.35rem;
  line-height: 1.25;
  margin: 0 0 0.75rem;
  font-weight: 600;
}
.talk-body p { margin: 0 0 0.9rem; }
.talk-facts {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
}
.talk-facts li { margin-bottom: 0.2rem; }
.talk-facts strong { color: var(--ink); font-weight: 600; }
.talk-links {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.95rem;
}
.talk-links span { margin-inline: 0.5rem; color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  max-width: 46rem;
}
.card p:last-child { margin-bottom: 0; }

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2rem 3rem;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 48rem) {
  .talk { grid-template-columns: 1fr; padding: 1.1rem; }
  .hero { padding-block: 2.5rem 1.75rem; }
}

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