@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;1,400&family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;1,8..60,300&display=swap');

:root {
  --cream: #f9f6f1;
  --white: #ffffff;
  --ink: #1c1c1c;
  --ink-light: #4a4a4a;
  --ink-muted: #888;
  --teal: #2e6b6b;
  --teal-light: #e8f0f0;
  --teal-hover: #245858;
  --rule: #d8d0c4;
  --serif-display: 'Playfair Display', Georgia, serif;
  --serif-body: 'Source Serif 4', Georgia, serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--cream);
  color: var(--ink);
  font-family: var(--serif-body);
  font-weight: 300;
  line-height: 1.7;
  min-height: 100vh;
}

/* ── NAVIGATION ── */
nav {
  background: var(--white);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  font-family: var(--serif-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--serif-body);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--ink-light);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
  padding-bottom: 2px;
  border-bottom: 1.5px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: 0.3s;
}

/* ── PAGE WRAPPER ── */
.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
}

/* ── TYPOGRAPHY ── */
h1 {
  font-family: var(--serif-display);
  font-size: 2.8rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

h2 {
  font-family: var(--serif-display);
  font-size: 1.5rem;
  font-weight: 400;
  font-style: italic;
  color: var(--teal);
  margin-bottom: 1.5rem;
  margin-top: 2.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

h3 {
  font-family: var(--serif-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.3rem;
}

p {
  margin-bottom: 1.2rem;
  color: var(--ink-light);
}

a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--teal-light);
  transition: border-color 0.2s, color 0.2s;
}

a:hover {
  color: var(--teal-hover);
  border-bottom-color: var(--teal-hover);
}

/* ── HOME PAGE ── */
.home-hero {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 4rem;
  align-items: start;
  padding-top: 1rem;
}

.home-hero-text h1 {
  font-size: 3rem;
}

.home-title-rule {
  width: 48px;
  height: 2px;
  background: var(--teal);
  margin: 1rem 0 1.5rem;
}

.home-hero-text p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-light);
  margin-bottom: 1.8rem;
}

.home-contact {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

.home-contact h2 {
  font-size: 0.78rem;
  font-style: normal;
  font-family: var(--serif-body);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin: 0 0 0.8rem;
  border: none;
  padding: 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
  font-size: 0.92rem;
  color: var(--ink-light);
}

.contact-item .label {
  font-weight: 400;
  color: var(--ink-muted);
  min-width: 50px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.home-photo {
  position: relative;
}

.home-photo img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: top;
  display: block;
  filter: sepia(8%) contrast(102%);
}

.home-photo::before {
  content: '';
  position: absolute;
  inset: -8px -8px auto auto;
  width: calc(100% - 16px);
  height: calc(100% - 16px);
  border: 1.5px solid var(--rule);
  z-index: -1;
}

/* ── BIO PAGE ── */
.bio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.bio-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  filter: sepia(5%) contrast(102%);
  display: block;
}

/* ── RESEARCH PAGE ── */
.paper {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--rule);
}

.paper:last-child {
  border-bottom: none;
}

.paper-meta {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  margin-bottom: 0.4rem;
}

.paper h3 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.paper .coauthors {
  font-size: 0.9rem;
  color: var(--ink-muted);
  font-style: italic;
  margin-bottom: 0.5rem;
}

.paper .journal {
  font-size: 0.9rem;
  color: var(--teal);
}

.paper .abstract {
  margin-top: 0.6rem;
  font-size: 0.95rem;
  color: var(--ink-light);
}

.paper-link {
  display: inline-block;
  margin-top: 0.7rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: none;
}

/* ── TEACHING PAGE ── */
.course {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--rule);
}

.course:last-child { border-bottom: none; }

.course h3 { margin-bottom: 0.2rem; }
.course .role {
  font-size: 0.85rem;
  color: var(--ink-muted);
  font-style: italic;
  margin-bottom: 0.5rem;
}

/* ── CV PAGE ── */
.cv-frame-wrap {
  margin-top: 1rem;
}

.cv-download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--teal);
  color: var(--white);
  padding: 0.6rem 1.4rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  transition: background 0.2s;
  margin-bottom: 1.5rem;
}

.cv-download:hover {
  background: var(--teal-hover);
  color: var(--white);
  border-bottom: none;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--rule);
  text-align: center;
  padding: 2rem;
  font-size: 0.8rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}

/* ── RESPONSIVE ── */
@media (max-width: 680px) {
  html { font-size: 16px; }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--rule);
    padding: 1rem 2rem 1.5rem;
    gap: 1rem;
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  .home-hero {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .home-photo { max-width: 240px; }
  .home-hero-text h1 { font-size: 2.2rem; }

  .bio-grid {
    grid-template-columns: 1fr 1fr;
  }

  h1 { font-size: 2.2rem; }
}
/* HOME — CV section */
.home-cv {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--rule);
}

.home-cv p {
  margin-bottom: 1.2rem;
}

/* TEACHING — philosophy & evaluations note */
.teaching-philosophy {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-light);
  margin-bottom: 0.8rem;
}

.evaluations-note {
  font-size: 0.88rem;
  font-style: italic;
  color: var(--ink-muted);
  margin-bottom: 0;
  padding-bottom: 0;
}

/* TEACHING — role title */
.role-title {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  margin-top: 0.5rem;
  margin-bottom: 0.2rem;
}

/* TEACHING — course row */
.course {
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
}

.course:last-of-type {
  border-bottom: none;
}

.course-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.course-terms {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin-top: 0.15rem;
}

.course-note {
  font-size: 0.92rem;
  color: var(--ink-light);
  margin-top: 0.4rem;
  margin-bottom: 0;
}

/* Syllabus link */
.syllabus-link {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
  border-bottom: none;
  color: var(--teal);
}

.syllabus-link:hover {
  color: var(--teal-hover);
}