@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #FAFAF7;
  --ink: #1A1A18;
  --ink-muted: #5B5B54;
  --rule: #D8D5CC;
  --accent: #33553B;
  --serif: 'Source Serif 4', Georgia, 'Iowan Old Style', serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
}

:root[data-theme="dark"] {
  --bg: #16150F;
  --ink: #EDEAE0;
  --ink-muted: #9B978A;
  --rule: #34322A;
  --accent: #6FA37D;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

body {
  font-family: var(--serif);
  padding: 56px 24px 80px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

#quarto-content > * ,
main.content {
  max-width: none;
}

.wrap { max-width: 700px; margin: 0 auto; }

/* Masthead */
.masthead { margin-bottom: 48px; }
.masthead-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}
.name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 2.5rem;
  letter-spacing: -0.01em;
  margin: 0 0 6px 0;
}
.role {
  font-family: var(--mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin: 0 0 20px 0;
}
.nav {
  display: flex;
  gap: 28px;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
  flex-wrap: wrap;
}
.nav a {
  font-family: var(--mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}
.nav a.active { color: var(--accent); font-weight: 600; }

/* Light / dark toggle */
.theme-toggle {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 8px;
  flex-shrink: 0;
}
.theme-toggle button {
  all: unset;
  cursor: pointer;
  color: var(--ink-muted);
}
.theme-toggle button.active { color: var(--accent); font-weight: 600; }
.theme-toggle .sep { color: var(--rule); }

/* Section labels */
.section-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin: 40px 0 16px 0;
}
.section-sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--ink-muted);
  margin: -12px 0 16px 0;
}

/* Body copy */
p { font-size: 1.0625rem; line-height: 1.7; margin: 0 0 18px 0; }
.muted { color: var(--ink-muted); }
.dek {
  font-style: italic;
  font-size: 1.1875rem;
  line-height: 1.6;
  margin: 0 0 8px 0;
}
h2.h2 {
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 500;
  margin: 36px 0 12px 0;
}

/* Project / writing list rows */
.project-row { padding: 20px 0; border-bottom: 1px solid var(--rule); }
.project-row:last-child { border-bottom: none; }
.row-title {
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 500;
  display: block;
  margin-bottom: 6px;
}
.row-desc { font-size: 0.9375rem; color: var(--ink-muted); margin: 0; line-height: 1.6; }

/* Reading companions */
.companion-row { padding: 14px 0; border-bottom: 1px solid var(--rule); }
.companion-row:last-child { border-bottom: none; }
.companion-title { font-family: var(--serif); font-size: 1rem; font-weight: 500; }
.companion-desc { font-size: 0.875rem; color: var(--ink-muted); margin: 2px 0 4px 0; }
.companion-link { font-family: var(--mono); font-size: 0.8125rem; }

/* Publications list (Research page) */
.pub-row {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  align-items: flex-start;
}
.pub-row:last-child { border-bottom: none; }
.pub-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
  width: 90px;
  flex-shrink: 0;
  line-height: 1.6;
  padding-top: 2px;
}
.pub-title { font-family: var(--serif); font-size: 1.0625rem; line-height: 1.5; }
.pub-authors {
  font-family: var(--serif);
  font-size: 0.9375rem;
  color: var(--ink-muted);
  margin-top: 4px;
  font-style: italic;
}

.topic-list { list-style: none; margin: 0; padding: 0; }
.topic-list li { font-family: var(--serif); font-size: 1.0625rem; line-height: 1.9; }
.topic-list li::before { content: "\2014\a0"; color: var(--ink-muted); font-family: var(--mono); }

/* Project page chrome */
.crumb {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin: 0 0 16px 0;
}
.title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 2.125rem;
  margin: 0 0 12px 0;
}
.mono-link { font-family: var(--mono); font-size: 0.875rem; }

/* Diagram (AI Briefing pipeline) */
.dmono { font-family: var(--mono); font-size: 11px; fill: var(--ink); letter-spacing: 0.02em; }
.dbox rect, .dbox-rect { fill: none; stroke: var(--ink); stroke-width: 1.25; }
.darrow { stroke: var(--ink-muted); stroke-width: 1.25; }
.darrow-dashed { stroke: var(--ink-muted); stroke-width: 1.25; stroke-dasharray: 4 3; }
.darrowhead { fill: var(--ink-muted); }
.ddivider { stroke: var(--rule); stroke-width: 1; }

@media (max-width: 480px) {
  body { padding: 40px 16px 64px; }
  .name { font-size: 2rem; }
}