:root {
  --bg: #fbfaf8;
  --bg-alt: #f2efe9;
  --text: #211f1c;
  --text-muted: #5b564e;
  --border: #e2ddd2;
  --accent: #8a4b2e;
  --accent-text: #ffffff;
  --card-bg: #ffffff;
  --btn-disabled-bg: #ece8e0;
  --btn-disabled-text: #9a948a;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161513;
    --bg-alt: #1d1c19;
    --text: #ece8e0;
    --text-muted: #a49d90;
    --border: #34322c;
    --accent: #d98a5f;
    --accent-text: #161513;
    --card-bg: #1d1c19;
    --btn-disabled-bg: #26241f;
    --btn-disabled-text: #6f6a60;
  }
}

:root[data-theme="dark"] {
  --bg: #161513;
  --bg-alt: #1d1c19;
  --text: #ece8e0;
  --text-muted: #a49d90;
  --border: #34322c;
  --accent: #d98a5f;
  --accent-text: #161513;
  --card-bg: #1d1c19;
  --btn-disabled-bg: #26241f;
  --btn-disabled-text: #6f6a60;
}

* { box-sizing: border-box; }

img { max-width: 100%; height: auto; display: block; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: 'Source Serif 4', Georgia, serif;
  font-weight: 600;
  line-height: 1.25;
}

h2 {
  font-size: 1.5rem;
  margin: 0 0 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1.1rem;
  margin: 0;
}

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

.hero {
  padding: 64px 0 40px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

.portrait {
  width: 128px;
  height: 128px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--border);
}

@media (max-width: 560px) {
  .hero-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .portrait {
    width: 96px;
    height: 96px;
  }
}

.hero h1 {
  font-size: 2.4rem;
  margin: 0 0 6px;
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin: 0 0 18px;
}

.summary {
  max-width: 620px;
  margin: 0 0 22px;
}

.links a {
  font-weight: 500;
}

.dot {
  color: var(--text-muted);
  margin: 0 8px;
}

main {
  padding: 48px 24px 16px;
}

section {
  margin-bottom: 48px;
}

section ul {
  padding-left: 20px;
  margin: 0;
}

.section-note {
  color: var(--text-muted);
  margin: -8px 0 20px;
  font-size: 0.95rem;
}

section li {
  margin-bottom: 8px;
}

.entry {
  margin-bottom: 26px;
}

.entry-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.entry-org {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 2px 0 8px;
}

.entry p {
  margin: 6px 0 0;
}

.date {
  color: var(--text-muted);
  font-size: 0.92rem;
  white-space: nowrap;
}

.skills-grid {
  display: grid;
  gap: 10px;
}

.skill-label {
  font-weight: 600;
  margin-right: 6px;
}

.pub-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.pub-thumb img {
  display: block;
  width: 100%;
  height: auto;
}

.pub-body {
  padding: 20px;
}

.pub-body h3 {
  margin-bottom: 8px;
}

.pub-desc {
  color: var(--text-muted);
  margin: 0 0 16px;
}

.pub-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  background: var(--accent);
  color: var(--accent-text);
}
.btn:hover { text-decoration: none; opacity: 0.9; }

.btn-disabled {
  background: var(--btn-disabled-bg);
  color: var(--btn-disabled-text);
  cursor: default;
}
.btn-disabled:hover { opacity: 1; }

footer {
  padding: 32px 0 56px;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  margin-top: 24px;
}

@media (max-width: 600px) {
  .hero { padding: 48px 0 32px; }
  .hero h1 { font-size: 1.9rem; }
  main { padding: 36px 20px 16px; }
}