/* Evan Perkoski — site styles (Option B-Landing 1) */
:root {
  --bg: #fafaf7;
  --ink: #15140f;
  --ink-2: #3a372d;
  --muted: #6b6759;
  --rule: #15140f;
  --rule-soft: #15140f15;
  --accent: oklch(0.45 0.13 35);
  --accent-tint: oklch(0.72 0.13 35);
  --dark: #15140f;
  --on-dark: #fafaf7;
  --on-dark-muted: #aaa597;
  --on-dark-soft: #d4cfbf;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.serif { font-family: 'Fraunces', 'Source Serif 4', Georgia, serif; font-weight: 400; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
.eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow-muted { color: var(--muted); }

/* Top contact bar */
.topbar {
  background: var(--dark);
  color: var(--on-dark);
  padding: 14px 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.topbar a { color: var(--on-dark); }
.topbar a:hover { color: var(--accent-tint); }

/* Page container */
.container { max-width: 1080px; margin: 0 auto; padding: 0 56px; }
.wide { max-width: 1180px; margin: 0 auto; padding: 0 56px; }

/* Header / identity */
.identity { padding: 64px 0 0; }
.identity h1 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 96px;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 14px 0 24px;
}
.identity-small h1 { font-size: 56px; line-height: 1; margin: 12px 0 18px; }

/* Folder-tab nav */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 0;
}
.tabs a {
  padding: 14px 22px 12px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink);
  border-right: 1px solid #15140f30;
  transition: background 0.12s, color 0.12s;
}
.tabs a:hover { background: var(--rule-soft); }
.tabs a.active { background: var(--accent); color: var(--on-dark); }
.tabs a.active:hover { background: var(--accent); color: var(--on-dark); }

/* Hero blurb (home) */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin: 64px 0 96px;
  align-items: start;
}
.hero-lede {
  font-family: 'Fraunces', serif;
  font-size: 30px;
  line-height: 1.3;
  margin: 0;
  letter-spacing: -0.013em;
  text-wrap: pretty;
}
.hero-lede em, .hero-lede .accent { color: var(--accent); font-style: italic; }
.hero-aside p { font-size: 15px; line-height: 1.6; margin: 0 0 14px; color: var(--ink-2); }
.link-row { display: flex; gap: 18px; margin-top: 24px; flex-wrap: wrap; }
.link-row a {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}
.link-row a:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* Book band */
.book-band {
  background: var(--dark);
  color: var(--on-dark);
  padding: 64px 56px;
  margin: 0 0 96px;
}
.book-grid {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: center;
}
.book-cover {
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6), 0 12px 24px -12px rgba(0,0,0,0.4);
}
.book-band .eyebrow { color: var(--accent-tint); }
.book-band h2 {
  font-family: 'Fraunces', serif;
  font-size: 56px;
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1;
  margin: 18px 0 8px;
}
.book-subtitle {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  font-style: italic;
  color: var(--on-dark-muted);
  letter-spacing: -0.013em;
  margin-bottom: 24px;
}
.book-band p {
  font-size: 16px;
  line-height: 1.55;
  color: var(--on-dark-soft);
  max-width: 520px;
  margin: 0 0 24px;
}
.award {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid #fafaf720;
}
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 10px 16px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.btn-solid { background: var(--on-dark); color: var(--ink); border-color: var(--on-dark); }
.btn-solid:hover { background: transparent; color: var(--on-dark); }
.btn-ghost { background: transparent; color: var(--on-dark); }
.btn-ghost:hover { background: var(--on-dark); color: var(--ink); }

/* Section header */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--accent);
}
.section-head h2 {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}
.section-head a {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}
.section-head a:hover { border-bottom-color: var(--ink); }

/* Article cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  border: 1px solid var(--ink);
  background: var(--bg);
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  min-height: 320px;
}
.card-meta {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
}
.card-meta .journal { color: var(--muted); }
.card h3 {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  font-weight: 400;
  margin: 0 0 10px;
  line-height: 1.15;
  letter-spacing: -0.013em;
}
.card .coauthors { font-size: 12px; font-style: italic; color: var(--muted); margin-bottom: 12px; }
.card p { font-size: 14px; line-height: 1.5; margin: 0 0 18px; color: var(--ink-2); }
.card-actions {
  margin-top: auto;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: flex;
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--rule-soft);
}
.card-actions a {
  border-bottom: 1px solid var(--ink);
  padding-bottom: 1px;
}
.card-actions a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* Generic spacing */
.section { margin-bottom: 80px; }

/* Pub list */
.pub-list { border-top: 1px solid var(--rule); margin-top: 18px; }
.pub-row {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.pub-row .y {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.pub-row .title {
  font-family: 'Fraunces', serif;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: -0.012em;
  margin-bottom: 3px;
}
.pub-row .meta { font-size: 12px; color: var(--muted); }
.pub-row .actions {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: flex;
  gap: 10px;
}
.pub-row .actions a {
  border-bottom: 1px solid var(--ink);
  padding-bottom: 1px;
}
.pub-row .actions a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* Sub-section heading inside pub list */
.pub-group {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 36px 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.pub-group:first-child { margin-top: 0; }

/* Two-col reading layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 64px;
  align-items: start;
}
.two-col aside {
  border-left: 1px solid var(--rule);
  padding-left: 28px;
}
.aside-block { margin-bottom: 28px; font-size: 14px; line-height: 1.55; color: var(--ink-2); }
.aside-block:last-child { margin-bottom: 0; }
.aside-label {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 8px;
}
.prose p { font-size: 17px; line-height: 1.65; margin: 0 0 18px; color: var(--ink); }
.prose p.lede { font-family: 'Fraunces', serif; font-size: 22px; line-height: 1.45; margin-bottom: 22px; }

/* Teaching list */
.teach-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 15px;
}
.teach-row .code { color: var(--muted); font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 12px; letter-spacing: 0.1em; }
.teach-row .name { font-family: 'Fraunces', serif; font-size: 18px; }
.teach-row .term { color: var(--muted); font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 11px; letter-spacing: 0.13em; text-transform: uppercase; }

/* Footer */
footer.site {
  padding: 24px 0 36px;
  border-top: 1px solid var(--rule);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 80px;
}

/* Responsive */
@media (max-width: 900px) {
  .container, .wide { padding: 0 28px; }
  .topbar { padding: 12px 28px; flex-direction: column; gap: 6px; align-items: flex-start; }
  .identity h1 { font-size: 64px; }
  .hero { grid-template-columns: 1fr; gap: 32px; margin: 40px 0 56px; }
  .book-band { padding: 40px 28px; margin-bottom: 56px; }
  .book-grid { grid-template-columns: 1fr; gap: 28px; }
  .book-cover { max-width: 220px; margin: 0 auto; }
  .book-band h2 { font-size: 40px; }
  .cards { grid-template-columns: 1fr; }
  .tabs { overflow-x: auto; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .two-col aside { border-left: none; border-top: 1px solid var(--rule); padding-left: 0; padding-top: 24px; }
  .pub-row { grid-template-columns: 50px 1fr; }
  .pub-row .actions { grid-column: 2 / 3; margin-top: 6px; }
  .teach-row { grid-template-columns: 1fr; gap: 4px; }
  footer.site { padding: 20px 0; }
}