:root {
  --bg: #f5f1e8;
  --bg-accent: #d9efe7;
  --paper: rgba(255, 252, 247, 0.92);
  --ink: #172033;
  --muted: #526071;
  --line: rgba(23, 32, 51, 0.14);
  --strong-line: rgba(23, 32, 51, 0.22);
  --accent: #0f766e;
  --accent-soft: #d6f4ee;
  --accent-ink: #115e59;
  --warm: #c2410c;
  --shadow: 0 24px 60px rgba(23, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.16), transparent 34%),
    radial-gradient(circle at top right, rgba(194, 65, 12, 0.12), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, #fbf8f2 52%, #f4f6fb 100%);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.65;
}

a {
  color: var(--accent-ink);
}

a:hover {
  color: var(--warm);
}

.site-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.site-header,
.site-footer,
.hero,
.section {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.site-header,
.site-footer {
  border-radius: 22px;
  padding: 18px 24px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.brand {
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.95rem;
}

.hero,
.section {
  border-radius: 30px;
  padding: 34px;
  margin-bottom: 22px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--strong-line);
  background: rgba(255, 255, 255, 0.7);
  color: var(--muted);
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0 0 14px;
  line-height: 1.1;
  font-weight: 700;
}

h1 {
  max-width: 11ch;
  font-size: clamp(2.6rem, 7vw, 5rem);
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.2rem;
}

.lede {
  max-width: 72ch;
  color: var(--muted);
  font-size: 1.1rem;
}

.hero-actions,
.badge-row,
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button,
.level-badge,
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
}

.button {
  padding: 12px 18px;
  border: 1px solid var(--strong-line);
  background: #fff;
  color: var(--ink);
  font-weight: 700;
}

.button-primary {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.level-badge,
.chip {
  padding: 8px 14px;
  border: 1px solid transparent;
  font-size: 0.95rem;
}

.level-badge {
  color: #fff;
  font-weight: 700;
}

.level-junior {
  background: #15803d;
}

.level-middle {
  background: #b45309;
}

.level-senior {
  background: #b91c1c;
}

.chip {
  background: var(--accent-soft);
  color: var(--accent-ink);
  border-color: rgba(15, 118, 110, 0.18);
}

.stats,
.card-grid {
  display: grid;
  gap: 16px;
}

.stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}

.stat {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
}

.stat strong {
  display: block;
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

.stat span {
  color: var(--muted);
  font-size: 0.95rem;
}

.card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.card p,
.section p,
.section li {
  color: var(--muted);
}

.card-title {
  margin-bottom: 8px;
}

.topic-list {
  margin: 0;
  padding-left: 20px;
}

.notice {
  padding: 16px 18px;
  border-left: 4px solid var(--warm);
  background: rgba(255, 247, 237, 0.92);
}

.content-page {
  padding: 34px;
  border-radius: 30px;
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.breadcrumbs,
.switcher-label,
.pager-label {
  color: var(--muted);
  font-size: 0.95rem;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 18px;
}

.content-hero {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.meta-row,
.language-switcher,
.pager {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--strong-line);
  background: rgba(255, 255, 255, 0.82);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.meta-pill-link {
  color: var(--ink);
}

.markdown-body > :first-child {
  margin-top: 0;
}

.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  margin-top: 1.8em;
}

.markdown-body p,
.markdown-body li,
.markdown-body td,
.markdown-body th,
.markdown-body blockquote {
  color: var(--ink);
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 22px;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 24px;
  overflow: hidden;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.markdown-body th,
.markdown-body td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.markdown-body th {
  background: rgba(15, 118, 110, 0.08);
  text-align: left;
}

.markdown-body pre {
  overflow-x: auto;
  padding: 18px;
  border-radius: 22px;
  background: #102033;
  color: #ecf4ff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.markdown-body code {
  padding: 0.12em 0.38em;
  border-radius: 8px;
  background: rgba(15, 118, 110, 0.08);
  font-size: 0.95em;
}

.markdown-body pre code {
  padding: 0;
  background: transparent;
}

.markdown-body blockquote {
  margin: 22px 0;
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
  background: rgba(15, 118, 110, 0.06);
}

.pager {
  justify-content: space-between;
  margin-top: 32px;
}

.pager-link {
  flex: 1 1 280px;
  padding: 18px 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  text-decoration: none;
}

.pager-link strong {
  display: block;
  margin-top: 8px;
  font-size: 1.05rem;
  line-height: 1.35;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 840px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .stats,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .section,
  .content-page {
    padding: 24px;
    border-radius: 24px;
  }
}