:root {
  --bg: #fbfaf7;
  --bg-soft: #f5f4f0;
  --ink: #2b2a26;
  --ink-soft: #6b675c;
  --accent: #3a5f63;
  --accent-soft: rgba(58, 95, 99, 0.35);
  --rule: #e3e1da;
  --code-bg: #f0efeb;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181a;
    --bg-soft: #1d1f21;
    --ink: #d6d2c8;
    --ink-soft: #8f8b81;
    --accent: #7ba3a7;
    --accent-soft: rgba(123, 163, 167, 0.3);
    --rule: #2e3134;
    --code-bg: #202225;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--ink);
  font-family: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1.5rem;
  padding: 0.7rem 1.25rem;
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--rule);
}

nav .brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

nav a {
  text-decoration: none;
  color: var(--ink);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

nav a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

main {
  max-width: 72ch;
  margin: 0 auto;
  padding: 1rem 1.25rem 4rem;
}

section {
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--rule);
}

section:last-of-type {
  border-bottom: none;
}

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.25;
}

h1 {
  font-size: 2rem;
  margin: 0.5rem 0 0.25rem;
}

h2 {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin: 0 0 1.25rem;
}

h3 {
  font-size: 1.2rem;
  margin: 1.75rem 0 0.5rem;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--accent);
}

p {
  margin: 0.75rem 0;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin: 0.6rem 0;
}

code, pre {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: 0.875em;
  background-color: var(--code-bg);
  border-radius: 3px;
}

code {
  padding: 0.1em 0.35em;
}

pre {
  padding: 0.85rem 1rem;
  overflow-x: auto;
  border-left: 2px solid var(--accent-soft);
  line-height: 1.5;
}

pre code {
  padding: 0;
  background: none;
}

table {
  border-collapse: collapse;
  margin: 1rem 0;
  width: 100%;
}

th, td {
  text-align: left;
  padding: 0.4rem 0.9rem 0.4rem 0;
  border-bottom: 1px solid var(--rule);
}

th {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 500;
}

.header {
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
  padding-top: 2.5rem;
}

.header img {
  width: 132px;
  height: 132px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--rule);
  flex-shrink: 0;
}

.affil {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin: 0.4rem 0;
}

.contact {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

.venue {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

footer {
  max-width: 72ch;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 0.8rem;
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }

  main {
    padding-inline: 1rem;
  }

  nav {
    justify-content: center;
    gap: 0.2rem 1rem;
  }
}