/* ============================================================
   John William Waldrop — academic site
   Design: quiet, text-forward, academic. The signature device —
   a rule that fades from solid to nothing — is a small nod to
   the sorites paradox / vagueness: no sharp line, just gradual
   loss of contrast. Used once per page, never decoratively.
   ============================================================ */

:root {
  --paper: #f7f6f2;
  --paper-raised: #fbfaf7;
  --ink: #1b1b18;
  --ink-soft: #4a4a44;
  --ink-faint: #83817a;
  --navy: #1d2b4f;
  --navy-soft: #35507a;
  --brass: #9c7a3c;
  --rule: #dcd9d0;
  --rule-soft: #eae8e1;

  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --measure: 40rem;
  --wide: 60rem;
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--navy);
  color: var(--paper);
}

a {
  color: var(--navy);
  text-decoration-color: var(--rule);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
a:hover { color: var(--brass); text-decoration-color: var(--brass); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 3px;
}

/* ---------- layout shell ---------- */

.shell {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 1.75rem;
}

header.site-header {
  border-bottom: 1px solid var(--rule);
  padding: 1.75rem 0 1.25rem;
}

.site-header .shell {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
}

.wordmark {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark:hover { color: var(--navy); }

nav.primary-nav {
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
nav.primary-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
nav.primary-nav a:hover,
nav.primary-nav a[aria-current="page"] {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

main { padding: 3.25rem 0 5rem; }

footer.site-footer {
  border-top: 1px solid var(--rule);
  padding: 1.75rem 0 2.5rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ---------- the fading rule (signature device) ---------- */

.fade-rule {
  height: 1px;
  border: none;
  margin: 3rem 0;
  background: linear-gradient(to right, var(--rule) 0%, var(--rule) 40%, transparent 100%);
}
.fade-rule.center {
  background: linear-gradient(to right, transparent 0%, var(--rule) 30%, var(--rule) 70%, transparent 100%);
}

/* ---------- typography ---------- */

h1, h2, h3 { font-family: var(--serif); font-weight: 500; color: var(--ink); }

.eyebrow {
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 0.6rem;
}

h1.page-title {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.4rem;
}

.subtitle {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 0 0 2.5rem;
}

.prose { max-width: var(--measure); }
.prose p { margin: 0 0 1.15rem; }
.prose h2 {
  font-size: 1.3rem;
  margin: 2.5rem 0 1rem;
}
.prose h2:first-child { margin-top: 0; }

/* ---------- home hero ---------- */

.hero { max-width: var(--measure); }
.hero .eyebrow { margin-bottom: 1rem; }

.hero-thesis {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.55rem;
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 2rem;
}

.quote-attribution {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin: 0 0 2rem;
}

.portrait-photo {
  margin: 0 0 2rem;
  max-width: 22rem;
}
.portrait-photo img {
  width: 100%;
  height: auto;
  border-radius: 3px;
  display: block;
}
.portrait-photo figcaption {
  font-family: var(--sans);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--ink-soft);
  margin-top: 0.6rem;
}

.bio {
  max-width: var(--measure);
}

.hero-name {
  font-size: 1.9rem;
  font-weight: 500;
  margin: 0 0 0.25rem;
}

.hero-affil {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 0 0 1.75rem;
}

.hero-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-family: var(--sans);
  font-size: 0.85rem;
}

/* ---------- portrait ---------- */

.portrait {
  width: 132px;
  height: 132px;
  border-radius: 3px;
  background: var(--navy);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 2.6rem;
  font-weight: 500;
  float: right;
  margin: 0 0 1.5rem 2rem;
  user-select: none;
}

/* ---------- CV / research / teaching entries ---------- */

.entry-list { list-style: none; margin: 0; padding: 0; max-width: var(--wide); }
.entry-list li {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0.25rem 1.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--rule-soft);
}
.entry-list li:first-child { border-top: 1px solid var(--rule-soft); }

.entry-date {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--ink-faint);
  padding-top: 0.2rem;
  white-space: nowrap;
}

.course-list .entry-body {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}
.syllabus-btn {
  padding: 0.4rem 0.9rem;
  font-size: 0.72rem;
}

.pub-list .entry-body a { display: inline-block; margin-top: 0.35rem; font-size: 0.92rem; }

.entry-body strong { font-weight: 600; }
.entry-body .venue { color: var(--ink-soft); font-size: 0.95rem; }
.entry-body .note { color: var(--ink-faint); font-size: 0.88rem; }

@media (max-width: 40rem) {
  .entry-list li { grid-template-columns: 1fr; gap: 0.15rem; }
  .entry-date { padding-top: 0; }
}

/* ---------- section headers within a page ---------- */

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1.25rem;
}
.section-heading h2 { margin: 0; font-size: 1.25rem; }
.section-count {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

section.cv-section { margin-bottom: 3rem; }

/* ---------- buttons / cta ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--navy);
  color: var(--navy);
  border-radius: 2px;
}
.btn:hover { background: var(--navy); color: var(--paper); }
.btn.quiet {
  border-color: var(--rule);
  color: var(--ink-soft);
}
.btn.quiet:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* ---------- callout / highlight box ---------- */

.callout {
  border-left: 2px solid var(--brass);
  padding: 0.25rem 0 0.25rem 1.25rem;
  margin: 2rem 0;
  max-width: var(--measure);
}
.callout .eyebrow { color: var(--brass); }
.callout p:last-child { margin-bottom: 0; }

/* ---------- contact page ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 2rem;
  max-width: var(--wide);
  margin-top: 2rem;
}
.contact-item .eyebrow { margin-bottom: 0.4rem; }
.contact-item a, .contact-item p { margin: 0; font-size: 1rem; }

/* ---------- PDF embed (CV page) ---------- */

.pdf-embed {
  border: 1px solid var(--rule);
  border-radius: 3px;
  overflow: hidden;
  background: var(--paper-raised);
}
.pdf-embed object {
  width: 100%;
  height: 82vh;
  display: block;
}
.pdf-embed p {
  padding: 2rem;
  font-family: var(--sans);
  color: var(--ink-soft);
}

/* ---------- print (CV page) ---------- */

@media print {
  header.site-header, footer.site-footer, .no-print { display: none; }
  body { font-size: 12pt; }
}