/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent:     #1a3a5c;
  --accent-light: #2e5f94;
  --text:       #1c1c1e;
  --muted:      #555e6e;
  --border:     #d4d8de;
  --bg:         #fafafa;
  --bg-tag:     #edf1f7;
  --font-serif: 'EB Garamond', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;
  --max-w:      760px;
}

html { font-size: 17px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  text-align: justify;
}

/* ===== Container ===== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 56px 28px 64px;
}

/* ===== Header ===== */
header { padding: 40px 0 24px; }

.name {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--accent);
  line-height: 1.15;
}
.subtitle {
  font-size: 1rem;
  color: var(--muted);
  margin-top: 6px;
  font-style: italic;
  text-align: left;
}

.contact-row {
  margin-top: 14px;
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
  align-items: center;
  color: var(--muted);
  text-align: left;
}
.contact-row a {
  color: var(--accent-light);
  text-decoration: none;
  transition: text-decoration 0.1s;
}
.contact-row a:hover { text-decoration: underline; }
.sep { margin: 0 8px; color: var(--border); }

/* ===== Divider ===== */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}

/* ===== Section Headings ===== */
section { margin-bottom: 4px; }

h2 {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: -0.005em;
  text-align: left;
}

h3 {
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 18px 0 10px;
  text-align: left;
}
h3:first-child { margin-top: 4px; }

h4 {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-bottom: 4px;
  text-align: left;
}

/* ===== About ===== */
#about p {
  color: var(--text);
  line-height: 1.75;
}

/* ===== Tag List (Research Interests) ===== */
.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  text-align: left;
}
.tag-list li {
  background: var(--bg-tag);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 12px;
  font-size: 0.84rem;
  color: var(--accent);
}

/* ===== Entry (Education / Experience) ===== */
.entry {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0 16px;
  margin-bottom: 18px;
  align-items: start;
}

.entry-meta {
  padding-top: 2px;
  text-align: right;
}
.entry-year {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
}
.entry-tag {
  display: block;
  font-size: 0.72rem;
  font-style: italic;
  color: var(--muted);
}

.entry-title {
  font-size: 0.97rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.45;
  text-align: justify;
}
.entry-sub {
  font-size: 0.84rem;
  color: var(--muted);
  margin-top: 2px;
  line-height: 1.5;
  text-align: justify;
}
.entry-desc {
  font-size: 0.87rem;
  color: var(--muted);
  margin-top: 4px;
  line-height: 1.6;
  text-align: justify;
}

/* ===== Publications ===== */
.pub-group { margin-bottom: 8px; }

.pub-entry {
  margin-bottom: 16px;
  padding-left: 14px;
  border-left: 2px solid var(--border);
}
.pub-citation {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text);
  text-align: justify;
}
.pub-citation em { font-style: italic; }

.pub-venues {
  list-style: none;
  margin-top: 6px;
  padding: 0;
}
.pub-venues li {
  font-size: 0.82rem;
  color: var(--muted);
  padding: 1px 0;
  text-align: justify;
}
.pub-venues li::before {
  content: "— ";
  color: var(--border);
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px 24px;
}
.skill-group p {
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.55;
  text-align: justify;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 8px;
  padding-top: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 560px) {
  html { font-size: 15px; }
  .container { padding: 48px 18px 48px; }
  .name { font-size: 2rem; }
  .entry {
    grid-template-columns: 1fr;
    gap: 2px;
  }
  .entry-meta { text-align: left; }
  .skills-grid { grid-template-columns: 1fr; }
}