/* ============================================
   Token system
   ============================================ */
:root {
  --paper: #EFEBE0;
  --card: #F8F6EF;
  --ink: #22262B;
  --ink-soft: #4A4F57;
  --brass: #96762E;
  --burgundy: #6E2A35;
  --rule: #CFC9B8;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Lora", Georgia, serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  --max-width: 900px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
}

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

a:hover,
a:focus-visible {
  color: var(--burgundy);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--burgundy);
  outline-offset: 3px;
}

/* ============================================
   Top navigation
   ============================================ */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--card);
}

.nav-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}

.site-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--burgundy);
}

.site-nav a[aria-current="page"] {
  color: var(--burgundy);
  border-bottom-color: var(--burgundy);
}

/* ============================================
   Page shell + catalog-card header
   ============================================ */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.call-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--brass);
  text-transform: uppercase;
  margin: 0 0 0.4rem;
}

.page-title {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--ink);
}

.rule-double {
  border: none;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  height: 3px;
  margin: 0 0 2rem;
}

.lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 75ch;
  margin: 0 0 2.5rem;
}

/* ============================================
   Section blocks (CV, teaching, awards entries)
   ============================================ */
.entry-list {
  list-style: none;
  margin: 0 0 2.5rem;
  padding: 0;
}

.entry {
  display: grid;
  grid-template-columns: 9.5rem 1fr;
  gap: 0.25rem 1.25rem;
  padding: 1rem 0;
  border-top: 1px solid var(--rule);
}

.entry:last-child {
  border-bottom: 1px solid var(--rule);
}

.entry-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  padding-top: 0.2rem;
  white-space: nowrap;
}

.entry-title {
  font-weight: 600;
  margin: 0 0 0.15rem;
}

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

.entry-desc {
  color: var(--ink-soft);
  margin: 0.35rem 0 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.entry-desc + .entry-desc {
  margin-top: 0.25rem;
}

.entry-authors {
  margin: 0 0 0.2rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.entry-venue {
  margin: 0 0 0.6rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.entry-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.entry-links a {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--brass);
  text-decoration: none;
}

.entry-links a:hover,
.entry-links a:focus-visible {
  color: var(--burgundy);
  border-color: var(--burgundy);
}

.term-block {
  margin: 0 0 1.5rem;
}

.term-block:last-child {
  margin-bottom: 0;
}

.term-heading {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 0.6rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--rule);
}

.course-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.course-list li {
  margin: 0 0 0.45rem;
  font-size: 0.95rem;
  color: var(--ink);
  padding-left: 1.1rem;
  position: relative;
}

.course-list li:last-child {
  margin-bottom: 0;
}

.course-list li::before {
  content: "\2013";
  position: absolute;
  left: 0;
  color: var(--rule);
}

.course-role {
  font-weight: 600;
  color: var(--ink-soft);
}

.talk-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
}

.talk-tags li {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}

section + section {
  margin-top: 2.5rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0 0 1rem;
  color: var(--ink);
}

/* ============================================
   Catalog cards (homepage quick links)
   ============================================ */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 0 0 2.5rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 0 0 2.5rem;
}

@media (max-width: 560px) {
  .catalog-grid { grid-template-columns: 1fr; }
  .entry { grid-template-columns: 1fr; }
  .doc-links { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
}

.video-card {
  background: var(--card);
  border: 1px solid var(--rule);
  overflow: hidden;
}

.video-card video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--ink);
}

.video-card-body {
  padding: 1rem 1.1rem 1.1rem;
}

.video-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
  color: var(--ink);
}

.video-card-desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
}

.catalog-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--rule);
  padding: 1.25rem 1.25rem 1.1rem;
  text-decoration: none;
  color: var(--ink);
  display: block;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.catalog-card::before {
  content: "";
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--rule);
}

.catalog-card:hover,
.catalog-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--rule);
}

.catalog-card .card-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brass);
  display: block;
  margin: 0 0 0.4rem;
  padding-left: 1rem;
}

.catalog-card .card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
}

.catalog-card .card-desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
}

/* ============================================
   External links row (papers, linkedin, etc)
   ============================================ */
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0 0 2.5rem;
  padding: 0;
  list-style: none;
}

.link-row li {
  border: 1px solid var(--rule);
  background: var(--card);
  display: flex;
  align-items: stretch;
}

.pgp-link {
  display: flex;
  align-items: center;
  padding: 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--brass);
  text-decoration: none;
  border-left: 1px solid var(--rule);
}

.pgp-link:hover,
.pgp-link:focus-visible {
  color: var(--burgundy);
  background: var(--paper);
}

.link-row a {
  display: block;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-decoration: none;
  color: var(--ink);
}

.link-row a:hover,
.link-row a:focus-visible {
  color: var(--burgundy);
}

/* ============================================
   Homepage profile header (name/details + photo)
   ============================================ */
.profile-header {
  display: grid;
  grid-template-columns: 1fr 160px;
  gap: 2rem;
  align-items: start;
  margin: 0 0 1.75rem;
}

@media (max-width: 560px) {
  .profile-header { grid-template-columns: 1fr; }
  .profile-photo { order: -1; width: 120px; margin: 0 auto; }
}

.profile-header .page-title {
  margin-bottom: 0.6rem;
}

.profile-photo {
  position: relative;
}

.profile-photo::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--rule);
  z-index: 2;
}

.profile-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 2051 / 1818;
  object-fit: cover;
  border: 1px solid var(--rule);
  background: var(--card);
}

.identity-block {
  margin: 0 0 1.1rem;
}

.identity-block p {
  margin: 0;
  line-height: 1.4;
}

.identity-block .designation {
  font-weight: 600;
  color: var(--ink);
}

.identity-block .institution {
  color: var(--ink-soft);
}

/* Email and external-profile link rows reuse .link-row, defined above */

/* ============================================
   Document links row (CV / statements)
   ============================================ */
.doc-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0 0 2.5rem;
}

.doc-links a {
  display: block;
  text-align: center;
  padding: 0.9rem 1rem;
  background: var(--card);
  border: 1px solid var(--rule);
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: transform 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
}

.doc-links a:hover,
.doc-links a:focus-visible {
  color: var(--burgundy);
  transform: translateY(-2px);
  box-shadow: 0 4px 0 var(--rule);
}

/* ============================================
   Mentor lines
   ============================================ */
.mentor-block {
  margin: 0 0 2.5rem;
}

.mentor-line {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  border-top: 1px solid var(--rule);
  padding: 1.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
}