@import url('https://fonts.googleapis.com/css2?family=Courier+Prime:ital,wght@0,400;0,700;1,400&display=swap');

/* ── colour tokens ── */
:root {
  --bg:    #0a0a0a;
  --fg:    #d8d8d0;
  --h:     #ffffff;
  --muted: #555550;
  --link:  #ff6eb4;
  --hover: #ffffff;
  --border:#222220;
}

body.light {
  --bg:    #f4f0e6;
  --fg:    #2a2a26;
  --h:     #000000;
  --muted: #888880;
  --link:  #3a3a36;
  --hover: #000000;
  --border:#d4d0c4;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Courier Prime', 'Courier New', monospace;
  font-size: 16px;
  line-height: 1.8;
  padding: 4rem 1.5rem 6rem;
  max-width: 680px;
  margin: 0 auto;
  transition: background 0.3s, color 0.3s;
}

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

/* ── header with photo ── */
.header-row {
  display: flex;
  align-items: flex-start;
  gap: 1.8rem;
  margin-bottom: 2.5rem;
}

.header-photo {
  flex-shrink: 0;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 50%;
  margin-top: 0.2rem;
  filter: grayscale(30%);
}

.header-text { flex: 1; }

/* ── name ── */
h1 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--h);
  margin-bottom: 0.15rem;
  letter-spacing: 0.02em;
}

.title-line {
  font-size: 0.85rem;
  color: #ff6eb4;
  margin-bottom: 0;
}

.intro {
  margin-top: 0.8rem;
  margin-bottom: 0;
  font-size: 0.92rem;
}

/* ── section headings ── */
h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--h);
  margin: 2.5rem 0 0.7rem;
}

h3::before {
  content: '## ';
  color: var(--muted);
  font-weight: 400;
}

/* ── page title on inner pages ── */
h1.page-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--h);
  margin-bottom: 2rem;
}

h1.page-title::before {
  content: '# ';
  color: var(--muted);
  font-weight: 400;
}

/* ── body text ── */
p { margin-bottom: 1rem; }

/* ── lists ── */
ul, ol {
  list-style: none;
  padding-left: 1.3rem;
  margin-bottom: 0.5rem;
}

li {
  margin-bottom: 0.3rem;
  padding-left: 0.4rem;
}

li::before {
  content: '* ';
  color: var(--muted);
  margin-left: -1.3rem;
}

/* ── publications ── */
.pub { margin-bottom: 1.3rem; }

.pub-award {
  font-size: 0.82rem;
  color: #b09060;
  display: block;
  margin-top: 0.2rem;
}

.pub-award::before { content: '> '; }

/* ── footer nav + toggle ── */
.site-nav {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1.4rem;
}

.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--hover); text-decoration: none; }

.theme-toggle {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: inherit;
  font-size: 0.82rem;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.theme-toggle:hover {
  color: var(--hover);
  border-color: var(--hover);
}

/* ── responsive ── */
@media (max-width: 500px) {
  .header-row { flex-direction: column; gap: 1rem; }
  .header-photo { width: 80px; height: 80px; }
  .theme-toggle { margin-left: 0; }
}