:root {
  --bg: #efe9dd;
  --panel: #fffaf2;
  --panel-strong: #f8f1e4;
  --ink: #1b2b2c;
  --muted: #5a6a68;
  --line: #d7cdbf;
  --accent: #0b7a75;
  --accent-strong: #0b5e5a;
  --accent-soft: #dff2ef;
  --sidebar-bg: #10282b;
  --sidebar-ink: #ebf1ee;
  --sidebar-muted: #a8c0bc;
  --warn-bg: #fff1d6;
  --warn-line: #d6b06b;
  --shadow: 0 20px 60px rgba(16, 40, 43, 0.08);
  --radius: 18px;
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, Monaco, monospace;
  --sans: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(11, 122, 117, 0.08), transparent 30%),
    linear-gradient(180deg, #f6f0e7 0%, var(--bg) 100%);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
}

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

a:hover {
  text-decoration: underline;
}

code,
pre,
.mono {
  font-family: var(--mono);
}

code {
  padding: 0.08rem 0.35rem;
  border-radius: 6px;
  background: rgba(11, 122, 117, 0.08);
  color: var(--accent-strong);
}

pre {
  margin: 16px 0;
  overflow-x: auto;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f4ecdf;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

pre code {
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
}

.layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 250px;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 28px 22px 40px;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #133338 0%, var(--sidebar-bg) 100%);
  color: var(--sidebar-ink);
}

.brand {
  margin-bottom: 28px;
}

.brand small,
.sidebar .muted {
  color: var(--sidebar-muted);
}

.brand h1,
.brand h2 {
  margin: 0;
  font-size: 1.3rem;
  line-height: 1.2;
}

.brand p {
  margin: 10px 0 0;
}

.search-block {
  margin: 0 0 24px;
}

.search-block-home {
  max-width: 860px;
  padding: 18px 20px;
  border: 1px solid rgba(215, 205, 191, 0.9);
  border-radius: var(--radius);
  background: rgba(255, 250, 242, 0.88);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.search-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.search-input-wrap {
  position: relative;
}

.search-input {
  width: 100%;
  padding: 12px 68px 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
}

.search-input::placeholder {
  color: var(--muted);
}

.search-input:focus {
  outline: 2px solid rgba(11, 122, 117, 0.18);
  outline-offset: 0;
  border-color: var(--accent);
}

.search-clear {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-strong);
  color: var(--ink);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}

.search-hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.search-results {
  margin-top: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.search-state,
.search-count {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.search-count {
  border-bottom: 1px solid var(--line);
  background: var(--panel-strong);
}

.search-result {
  display: block;
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.search-result:last-child {
  border-bottom: 0;
}

.search-result:hover {
  background: var(--panel-strong);
  text-decoration: none;
}

.search-result-title,
.search-result-meta,
.search-result-snippet {
  display: block;
}

.search-result-title {
  font-weight: 700;
}

.search-result-meta {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.search-result-snippet {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.sidebar .search-label,
.sidebar .search-hint {
  color: var(--sidebar-muted);
}

.sidebar .search-input {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: var(--sidebar-ink);
}

.sidebar .search-input::placeholder {
  color: rgba(235, 241, 238, 0.62);
}

.sidebar .search-input:focus {
  outline-color: rgba(223, 242, 239, 0.18);
  border-color: rgba(223, 242, 239, 0.38);
}

.sidebar .search-clear {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: var(--sidebar-ink);
}

.nav-group {
  margin-top: 24px;
}

.nav-group h3 {
  margin: 0 0 10px;
  color: var(--sidebar-muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-group a {
  display: block;
  margin: 2px 0;
  padding: 9px 12px;
  border-radius: 12px;
  color: var(--sidebar-ink);
}

.nav-group a.active,
.nav-group a:hover {
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.sidebar-note {
  margin-top: 24px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--sidebar-muted);
  font-size: 0.9rem;
}

.sidebar-note code {
  background: rgba(255, 255, 255, 0.1);
  color: var(--sidebar-ink);
}

.main-wrap {
  padding: 34px 34px 56px;
}

.article {
  max-width: 900px;
  margin: 0 auto;
}

.toc {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 34px 24px 40px 8px;
}

.toc-card,
.article-card,
.home-card {
  background: rgba(255, 250, 242, 0.86);
  border: 1px solid rgba(215, 205, 191, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.toc-card {
  padding: 18px 18px 20px;
}

.toc h3 {
  margin: 0 0 10px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.toc a {
  display: block;
  padding: 6px 0;
  color: var(--ink);
  font-size: 0.95rem;
}

.article-card {
  padding: 30px 34px 42px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-title {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3.1rem);
  line-height: 1.05;
}

.lead {
  margin-top: 14px;
  color: var(--muted);
  font-size: 1.08rem;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 18px;
}

.meta-item {
  padding: 14px 14px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel-strong);
}

.meta-item span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.meta-item strong {
  display: block;
  margin-top: 6px;
  font-size: 0.96rem;
  line-height: 1.4;
}

.callout {
  margin: 22px 0;
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
  border-radius: 14px;
  background: var(--accent-soft);
}

.callout.warn {
  border-left-color: var(--warn-line);
  background: var(--warn-bg);
}

.source-list,
.bullet-list {
  padding-left: 1.1rem;
}

.source-list li,
.bullet-list li {
  margin: 0.28rem 0;
}

.source-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 26px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--ink);
  font-size: 0.92rem;
}

.section {
  margin-top: 38px;
  padding-top: 8px;
}

.section h2 {
  margin: 0 0 8px;
  font-size: 1.6rem;
}

.section h3 {
  margin: 22px 0 6px;
  font-size: 1.08rem;
}

.section p {
  margin: 10px 0;
}

.sources {
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: rgba(248, 241, 228, 0.72);
}

.sources strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

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

th {
  background: var(--panel-strong);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

tr:last-child td {
  border-bottom: 0;
}

.home-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 42px 28px 60px;
}

.home-hero {
  margin-bottom: 26px;
}

.home-search-panel {
  margin-bottom: 24px;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.home-card {
  padding: 22px 22px 20px;
}

.home-card h2 {
  margin: 0 0 10px;
  font-size: 1.28rem;
}

.home-card p {
  margin: 0 0 16px;
  color: var(--muted);
}

.home-card .meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.home-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.home-card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.home-card li {
  margin: 0.34rem 0;
}

.button-link {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  font-weight: 600;
}

.button-link.secondary {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.footer-note {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 1260px) {
  .layout {
    grid-template-columns: 260px minmax(0, 1fr);
  }

  .toc {
    display: none;
  }
}

@media (max-width: 920px) {
  .layout {
    display: block;
  }

  .sidebar {
    position: relative;
    height: auto;
  }

  .main-wrap {
    padding: 22px 16px 40px;
  }

  .article-card {
    padding: 24px 18px 30px;
  }

  .meta-grid,
  .home-grid {
    grid-template-columns: 1fr;
  }

  .home-shell {
    padding: 28px 16px 40px;
  }
}