:root {
  --base: #303446;
  --mantle: #292c3c;
  --crust: #232634;
  --surface0: #414559;
  --surface1: #51576d;
  --surface2: #626880;
  --text: #c6d0f5;
  --subtext1: #b5bfe2;
  --subtext0: #a5adce;
  --overlay0: #737994;
  --overlay1: #838ba7;
  --blue: #8caaee;
  --teal: #81c8be;
  --mauve: #ca9ee6;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--base);
  color: var(--text);
  font-family: "Sora", "Segoe UI", sans-serif;
}

a {
  color: var(--subtext1);
  text-decoration: none;
}

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

.layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 320px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  background: var(--mantle);
  border-right: 1px solid var(--surface0);
  padding: 18px 14px;
}

.brand {
  border-bottom: 1px solid var(--surface0);
  padding: 2px 8px 14px;
  margin-bottom: 10px;
}

.brand-title {
  font-size: 24px;
  letter-spacing: -0.01em;
  font-weight: 600;
}

.brand-subtitle {
  margin-top: 2px;
  color: var(--overlay1);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-group {
  margin-top: 10px;
  color: var(--overlay1);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 8px 4px;
  border-top: 1px solid var(--surface0);
}

.nav button {
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--subtext0);
  text-align: left;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.nav button:hover {
  background: #3a3f55;
  color: var(--text);
}

.nav button.active {
  background: #3f455d;
  color: #ffffff;
}

.sidebar-footer {
  margin-top: 16px;
  border-top: 1px solid var(--surface0);
  padding: 12px 8px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
}

.content {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(41, 44, 60, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--surface0);
  height: 56px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-wrap {
  flex: 1;
  max-width: 370px;
}

#searchInput {
  width: 100%;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--surface0);
  background: var(--crust);
  color: var(--text);
  font-size: 14px;
  padding: 0 12px;
}

#searchInput:focus {
  outline: 1px solid var(--blue);
  border-color: var(--blue);
}

.top-link {
  color: var(--overlay1);
  font-size: 13px;
  white-space: nowrap;
}

.doc {
  max-width: 780px;
  margin: 0 auto;
  padding: 26px 22px 20px;
}

.doc h1 {
  font-size: 36px;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0 0 12px;
  border-bottom: 1px solid var(--surface0);
  padding-bottom: 10px;
}

.doc .lead {
  margin: 0 0 20px;
  color: var(--subtext1);
  font-size: 16px;
  line-height: 1.65;
}

.doc h2 {
  margin: 26px 0 8px;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: #dbe2ff;
}

.doc h3 {
  margin: 18px 0 7px;
  font-size: 17px;
  color: #d0d9fb;
}

.doc p,
.doc li {
  color: var(--subtext1);
  font-size: 14px;
  line-height: 1.75;
}

.doc ul,
.doc ol {
  padding-left: 19px;
}

.doc li + li {
  margin-top: 4px;
}

.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.doc th,
.doc td {
  border: 1px solid var(--surface0);
  padding: 8px;
  vertical-align: top;
  font-size: 13px;
}

.doc th {
  background: var(--mantle);
  color: var(--text);
  font-weight: 600;
}

.doc code {
  font-family: "IBM Plex Mono", monospace;
  background: var(--crust);
  border: 1px solid var(--surface0);
  border-radius: 6px;
  padding: 2px 6px;
  color: #f0f3ff;
  font-size: 13px;
}

.doc pre {
  overflow-x: auto;
  background: var(--crust);
  border: 1px solid var(--surface0);
  border-radius: 10px;
  padding: 14px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  line-height: 1.6;
}

.callout {
  margin: 16px 0;
  padding: 12px 14px;
  border: 1px solid var(--surface1);
  border-left: 3px solid var(--mauve);
  border-radius: 8px;
  background: #2c3143;
  color: var(--subtext1);
}

.callout.warning {
  border-left-color: #e5c890;
  background: #3b372e;
  border-color: #695f49;
}

.callout.danger {
  border-left-color: #e78284;
  background: #3c2c35;
  border-color: #6a4b5b;
}

.callout.info {
  border-left-color: #8caaee;
  background: #2b3347;
  border-color: #45577f;
}

.doc strong {
  font-weight: 600;
  color: #f0f3ff;
}

.hl-red {
  color: #f2a6ad;
  font-weight: 600;
}

.hl-yellow {
  color: #efd6a0;
  font-weight: 600;
}

.hl-green {
  color: #a6d8cf;
  font-weight: 600;
}

.badge {
  display: inline-block;
  border: 1px solid var(--surface1);
  background: #2f3448;
  border-radius: 999px;
  padding: 4px 10px;
  margin: 0 8px 8px 0;
  color: var(--subtext0);
  font-size: 12px;
}

.small {
  color: var(--overlay1);
  font-size: 13px;
}

.search-results {
  margin-top: 16px;
  border: 1px solid var(--surface0);
  border-radius: 10px;
  background: var(--mantle);
  padding: 14px;
}

.pager {
  max-width: 780px;
  margin: 0 auto 40px;
  padding: 0 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pager a {
  border: 1px solid var(--surface0);
  border-radius: 10px;
  padding: 12px;
  background: var(--mantle);
  color: var(--subtext1);
  display: block;
}

.pager a:hover {
  border-color: var(--surface1);
  background: #2f3448;
}

.pager a.right {
  text-align: right;
}

.pager .label {
  font-size: 12px;
  color: var(--overlay1);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pager .title {
  margin-top: 4px;
  font-size: 15px;
  color: var(--text);
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--surface0);
  }

  .topbar {
    padding: 0 12px;
  }

  .top-link {
    display: none;
  }

  .search-wrap {
    max-width: none;
  }

  .doc {
    padding: 20px 14px;
  }

  .doc h1 {
    font-size: 30px;
  }

  .doc p,
  .doc li {
    font-size: 14px;
  }

  .pager {
    padding: 0 14px;
    margin-bottom: 26px;
  }
}