:root {
  --bg: #fbfaf9;
  --surface: #ffffff;
  --text: #201d1c;
  --text-muted: #6b6462;
  --border: #e7e2df;
  --accent: #c74b6b;
  --accent-soft: #f6e4e9;
  --radius: 10px;
  --max-width: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16130f;
    --surface: #1e1a17;
    --text: #f1ece8;
    --text-muted: #ab9f9a;
    --border: #322c28;
    --accent: #e8879e;
    --accent-soft: #3a2229;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", Pretendard, Roboto, sans-serif;
  line-height: 1.65;
  font-size: 16px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
}

.nav {
  display: flex;
  gap: 20px;
  overflow-x: auto;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
}

.nav a:hover { color: var(--accent); }

/* Hero */
.hero {
  padding: 72px 24px 40px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 12px;
}

.hero h1 {
  font-size: 40px;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 17px;
  max-width: 60ch;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.btn {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  background: var(--surface);
}

.btn:hover { border-color: var(--accent); color: var(--accent); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover { color: #fff; opacity: 0.9; }

/* Sections */
.section {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.section h2 {
  font-size: 24px;
  margin: 0 0 20px;
}

.sub {
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin: 28px 0 12px;
}

.pillbox {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.pill {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
}

/* Timeline */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline li {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.timeline li:last-child { border-bottom: none; }

.tl-date {
  color: var(--text-muted);
  font-size: 13px;
  padding-top: 2px;
}

.tl-title { font-weight: 600; }

.tl-meta {
  color: var(--accent);
  font-size: 13px;
  margin: 4px 0 6px;
}

.tl-body p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

@media (max-width: 560px) {
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
}

/* Publications */
details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  background: var(--surface);
}

summary {
  cursor: pointer;
  padding: 14px 18px;
  font-weight: 600;
  font-size: 14px;
}

.pub-list {
  margin: 0;
  padding: 0 18px 18px 36px;
}

.pub-list li {
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--text-muted);
}

.pub-list strong { color: var(--text); }

.tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 4px;
}

/* Plain lists */
.plain-list {
  padding-left: 20px;
  margin: 0;
}

.plain-list li {
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-muted);
}

.plain-list.compact li { margin-bottom: 4px; }

/* Media */
.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 20px;
}

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

.media-list li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.media-list li:last-child { border-bottom: none; }

.media-date { color: var(--text-muted); }

.media-channel {
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

@media (max-width: 560px) {
  .media-list li { grid-template-columns: 1fr; gap: 2px; }
}

/* Skills */
.skill-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.skill-grid p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .skill-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
}

/* Footer */
.site-footer {
  padding: 32px 24px 64px;
  color: var(--text-muted);
  font-size: 13px;
}