*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
:root {
  --bg: #faf8f5;
  --text: #1a1a1a;
  --accent: #5a5a5a;
  --muted: #4a4a4a;
  --border: #d5d2ce;
  --font-serif: 'Libre Baskerville', Georgia, serif;
  --font-sans: 'Montserrat', system-ui, sans-serif;
}
html {
  scroll-behavior: smooth;
}
body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: opacity 0.2s ease;
}
a:hover {
  opacity: 0.6;
}
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
}
main {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}
/* ─── Header ─── */
.site-header {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.site-header nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 32px;
  max-width: 680px;
  margin: 0 auto;
  padding: 18px 24px;
}
.site-header nav a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
}
.site-header nav a:hover {
  color: var(--text);
  opacity: 1;
}
/* ─── Hero ─── */
.hero {
  padding: 60px 0 64px;
  text-align: center;
}
.eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(40px, 8vw, 64px);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--accent);
  margin-bottom: 32px;
}
.hero-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
.hero-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
}
/* ─── Divider ─── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}
/* ─── Intro ─── */
.intro {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
.intro p {
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.8;
  color: var(--text);
}
/* ─── Sections ─── */
section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
section:last-of-type {
  border-bottom: none;
}
section h2 {
  font-size: 13px;
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.section-intro {
  font-size: 16px;
  color: var(--accent);
  margin-bottom: 40px;
}
/* ─── Talk Card ─── */
.talk-card {
  padding: 32px;
  border: 1px solid var(--border);
  margin-bottom: 40px;
}
.talk-card h3 {
  font-size: 22px;
  margin-bottom: 8px;
}
.talk-meta {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.talk-card p {
  font-size: 15px;
  color: var(--accent);
  margin-bottom: 20px;
}
.talk-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.talk-links a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  border-bottom: 1px solid var(--text);
  padding-bottom: 2px;
}
/* ─── Topics Grid ─── */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
}

.topic h4 {
  font-size: 16px;
  margin-bottom: 8px;
}
.topic p {
  font-size: 14px;
  color: var(--accent);
  line-height: 1.7;
}
/* ─── Connect ─── */
.connect-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}
.email-link {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
  text-decoration: none;
  color: var(--text);
  width: fit-content;
}
.email-link:hover {
  opacity: 0.7;
}
.calendly-placeholder {
  font-size: 14px;
  color: var(--muted);
  font-style: italic;
  text-decoration: none;
  border-bottom: 1px dashed var(--border);
  width: fit-content;
  cursor: not-allowed;
}
/* ─── Footer ─── */
footer {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-links a:hover {
  color: var(--text);
  opacity: 1;
}
/* ─── Responsive ─── */
@media (max-width: 600px) {
  .site-header nav {
    justify-content: center;
    gap: 20px;
  }
  .hero {
    padding: 64px 0 48px;
  }
  section {
    padding: 48px 0;
  }
  .intro p {
    font-size: 17px;
  }
  .talk-card {
    padding: 24px;
  }
  .topics-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  footer {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}