:root {
  --bg: #ffffff;
  --fg: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --card: #ffffff;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  --radius: 14px;
  --radius-sm: 10px;
  --max: 980px;
  --accent: #111827;
  --accent-soft: #f3f4f6;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Helvetica,
    Arial,
    "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--fg);
  background: var(--bg);
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 0.95em;
  background: #f9fafb;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 0.35em;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 18px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--fg);
  color: white;
  padding: 8px 10px;
  border-radius: 10px;
}
.skip-link:focus {
  left: 18px;
  z-index: 50;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  border: 1px solid var(--line);
  font-size: 13px;
}

.brand-text {
  font-size: 15px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 520;
  font-size: 14px;
}
.nav-link:hover {
  background: var(--accent-soft);
  color: var(--fg);
}

.nav-icon,
.section-icon,
.pill-icon,
.btn-icon {
  width: 16px;
  height: 16px;
  display: inline-block;
}

.site-main {
  padding-bottom: 38px;
}

.hero {
  padding: 34px 0 18px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 18px;
  align-items: start;
}

.hero-title {
  margin: 0;
  font-size: 40px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  margin: 8px 0 12px;
  color: var(--muted);
  font-weight: 520;
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fafafa;
  color: var(--muted);
  font-size: 13px;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 14px;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
  font-size: 14px;
  font-weight: 560;
}
.link-btn:hover {
  background: #fafafa;
}

.hero-note {
  margin: 10px 0 0;
  color: var(--muted);
}

.avatar-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.avatar-placeholder {
  height: 150px;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: linear-gradient(180deg, #f9fafb, #ffffff);
  border-bottom: 1px solid var(--line);
  font-weight: 600;
}

.avatar-photo {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--line);
  background: #f9fafb;
}

.avatar-caption {
  padding: 12px 14px;
}
.caption-title {
  font-weight: 650;
  letter-spacing: -0.01em;
}
.caption-subtitle {
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 18px 0;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}
.section-title h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.list li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  align-items: start;
}
.date {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  padding-top: 2px;
  white-space: nowrap;
}
.text {
  color: var(--fg);
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 8px 0 10px;
}

.pub-more {
  display: flex;
  justify-content: center;
  margin-top: 14px;
}

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: #ffffff;
  box-shadow: var(--shadow);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  color: #374151;
  cursor: pointer;
}
.btn:hover {
  background: #fafafa;
}

.input {
  width: min(380px, 100%);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  outline: none;
  background: #ffffff;
  box-shadow: var(--shadow);
}
.input:focus {
  border-color: #cbd5e1;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.pub-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pub-title {
  margin: 0;
  font-size: 15px;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.pub-top {
  display: grid;
  gap: 10px;
}

.pub-bottom {
  margin-top: auto;
  display: grid;
  gap: 10px;
}

.author-me {
  font-weight: 800;
  color: #2563eb;
}

.pub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  align-items: center;
  align-content: flex-start;
}

.pub-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  align-content: flex-start;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--line);
  color: #374151;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  flex: 0 0 auto;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  align-content: flex-start;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #ffffff;
  font-size: 13px;
  color: #374151;
  line-height: 1;
  white-space: nowrap;
  flex: 0 0 auto;
}
.chip:hover {
  background: #fafafa;
}

.muted {
  color: var(--muted);
}
.small {
  font-size: 13px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-footer {
  margin-top: 20px;
  padding: 18px 0 8px;
  border-top: 1px solid var(--line);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 840px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .list li {
    grid-template-columns: 110px 1fr;
  }
}