/* docs.homestaynextcore.org — màu/khoảng/chữ lấy từ tokens.css (chép từ design-system-v2 của web, #450) */
:root {
  --font-sans: 'Inter';
  --font-display: 'Inter';
  --doc-top: 60px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-padding-top: calc(var(--doc-top) + 16px);
}
body {
  margin: 0;
  font-family: Inter, -apple-system, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ds-ink);
  background: var(--ds-cream);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--ds-primary-ink);
}
:focus-visible {
  outline: 2px solid var(--ds-primary);
  outline-offset: 2px;
}
.nc-doc-skip {
  position: absolute;
  left: -999px;
}
.nc-doc-skip:focus {
  left: 16px;
  top: 8px;
  z-index: 50;
  padding: 8px 12px;
  background: var(--ds-bg);
}

/* ── thanh trên ── */
.nc-doc-top {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--doc-top);
  display: flex;
  align-items: center;
  gap: var(--ds-space-4);
  padding: 0 var(--ds-space-5);
  background: var(--ds-forest);
  color: var(--ds-forest-fg);
}
.nc-doc-top__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ds-forest-fg);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.nc-doc-top__link {
  margin-left: auto;
  color: color-mix(in srgb, var(--ds-forest-fg) 80%, transparent);
  font-size: 14px;
  white-space: nowrap;
}
.nc-doc-top__menu {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: var(--ds-radius);
  background: transparent;
  color: var(--ds-forest-fg);
  font-size: 20px;
  cursor: pointer;
}
.nc-doc-search {
  position: relative;
  flex: 0 1 420px;
  min-width: 0;
  display: flex;
  align-items: center;
  height: 38px;
  padding: 0 var(--ds-space-3);
  border-radius: var(--ds-radius);
  background: color-mix(in srgb, var(--ds-forest-fg) 10%, transparent);
}
.nc-doc-search__icon {
  margin-right: 8px;
  opacity: 0.7;
}
.nc-doc-search__input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ds-forest-fg);
  font: inherit;
  font-size: 14px;
}
.nc-doc-search__input::placeholder {
  color: color-mix(in srgb, var(--ds-forest-fg) 60%, transparent);
}
.nc-doc-search__results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 60vh;
  overflow: auto;
  padding: 6px;
  border: 1px solid var(--ds-hairline);
  border-radius: var(--ds-radius-md);
  background: var(--ds-bg);
  color: var(--ds-ink);
  box-shadow: var(--ds-shadow-lg);
}
.nc-doc-search__hit {
  display: block;
  padding: 8px 10px;
  border-radius: var(--ds-radius-sm);
  color: var(--ds-ink);
  text-decoration: none;
  font-size: 14px;
}
.nc-doc-search__hit small {
  display: block;
  color: var(--ds-ink-muted);
  font-size: 12.5px;
}
.nc-doc-search__hit:hover,
.nc-doc-search__hit[aria-selected='true'] {
  background: var(--ds-primary-soft);
}

/* ── bố cục 3 cột ── */
.nc-doc-layout {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr) 220px;
  gap: var(--ds-space-8);
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--ds-space-6);
}
.nc-doc-nav {
  position: sticky;
  top: var(--doc-top);
  align-self: start;
  max-height: calc(100vh - var(--doc-top));
  overflow: auto;
  padding: var(--ds-space-6) 0;
}
.nc-doc-nav__group + .nc-doc-nav__group {
  margin-top: var(--ds-space-5);
}
.nc-doc-nav__label {
  padding: 0 10px 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ds-ink-muted);
}
.nc-doc-nav__item {
  display: block;
  padding: 6px 10px;
  border-radius: var(--ds-radius-sm);
  color: var(--ds-ink-soft);
  font-size: 14.5px;
  line-height: 1.4;
  text-decoration: none;
}
.nc-doc-nav__item:hover {
  background: var(--ds-mist);
  color: var(--ds-ink);
}
.nc-doc-nav__item[aria-current='page'] {
  background: var(--ds-primary-soft);
  color: var(--ds-primary-ink);
  font-weight: 600;
}
.nc-doc-main {
  min-width: 0;
  max-width: 820px;
  padding: var(--ds-space-8) 0 var(--ds-space-12);
}
.nc-doc-aside {
  padding: var(--ds-space-8) 0;
}
.nc-doc-toc {
  position: sticky;
  top: calc(var(--doc-top) + 24px);
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13.5px;
}
.nc-doc-toc__label {
  margin-bottom: 6px;
  font-weight: 700;
  font-size: 12px;
  color: var(--ds-ink-muted);
}
.nc-doc-toc__item {
  padding: 3px 0;
  color: var(--ds-ink-soft);
  text-decoration: none;
}
.nc-doc-toc__item--h3 {
  padding-left: 12px;
}
.nc-doc-toc__item:hover {
  color: var(--ds-primary-ink);
}

/* ── nội dung ── */
.nc-doc-h1 {
  margin: 0 0 var(--ds-space-2);
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: -0.015em;
}
.nc-doc-lead {
  margin: 0 0 var(--ds-space-6);
  font-size: 18px;
  color: var(--ds-ink-soft);
}
.nc-doc-main h2 {
  margin: var(--ds-space-10) 0 var(--ds-space-3);
  font-size: 24px;
  line-height: 1.3;
}
.nc-doc-main h3 {
  margin: var(--ds-space-6) 0 var(--ds-space-2);
  font-size: 18px;
}
.nc-doc-anchor {
  float: left;
  margin-left: -22px;
  padding-right: 6px;
  color: var(--ds-ink-muted);
  text-decoration: none;
  opacity: 0;
}
h2:hover .nc-doc-anchor,
h3:hover .nc-doc-anchor {
  opacity: 1;
}
.nc-doc-main code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--ds-mist);
  font-family: 'Geist Mono', ui-monospace, Consolas, monospace;
  font-size: 0.88em;
}
.nc-doc-main pre {
  overflow: auto;
  padding: var(--ds-space-4);
  border-radius: var(--ds-radius-md);
  background: var(--ds-forest);
  color: var(--ds-forest-fg);
  font-size: 13.5px;
  line-height: 1.6;
}
.nc-doc-main pre code {
  overflow-wrap: normal;
  padding: 0;
  background: none;
  color: inherit;
}
.nc-doc-main kbd {
  padding: 1px 6px;
  border: 1px solid var(--ds-mist-hover);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--ds-bg);
  font-size: 0.85em;
}
.nc-doc-fig {
  margin: var(--ds-space-5) 0;
}
.nc-doc-fig img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ds-hairline);
  border-radius: var(--ds-radius-md);
  box-shadow: var(--ds-shadow-sm);
}
.nc-doc-fig figcaption {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--ds-ink-muted);
}
.nc-doc-callout {
  margin: var(--ds-space-5) 0;
  padding: var(--ds-space-3) var(--ds-space-4);
  border-left: 4px solid var(--ds-info);
  border-radius: var(--ds-radius);
  background: var(--ds-info-soft);
}
.nc-doc-callout p {
  margin: 4px 0;
}
.nc-doc-callout--warn {
  border-color: var(--ds-warning);
  background: var(--ds-warning-soft);
}
.nc-doc-callout--tip {
  border-color: var(--ds-success);
  background: var(--ds-success-soft);
}
.nc-doc-table {
  overflow-x: auto;
  margin: var(--ds-space-4) 0;
}
.nc-doc-table code {
  white-space: nowrap;
}
.nc-doc-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}
.nc-doc-table th,
.nc-doc-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--ds-hairline);
  text-align: left;
  vertical-align: top;
}
.nc-doc-table th {
  font-weight: 600;
  background: var(--ds-bg-muted);
}
.nc-doc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--ds-space-3);
  margin: var(--ds-space-5) 0;
}
.nc-doc-card {
  display: block;
  padding: var(--ds-space-4);
  border: 1px solid var(--ds-hairline);
  border-radius: var(--ds-radius-md);
  background: var(--ds-bg);
  color: var(--ds-ink);
  text-decoration: none;
}
.nc-doc-card:hover {
  border-color: var(--ds-primary);
}
.nc-doc-card strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ds-primary-ink);
}
.nc-doc-pager {
  display: flex;
  justify-content: space-between;
  gap: var(--ds-space-3);
  margin-top: var(--ds-space-12);
  padding-top: var(--ds-space-5);
  border-top: 1px solid var(--ds-hairline);
}
.nc-doc-pager a {
  display: flex;
  flex-direction: column;
  max-width: 48%;
  padding: var(--ds-space-3) var(--ds-space-4);
  border: 1px solid var(--ds-hairline);
  border-radius: var(--ds-radius-md);
  background: var(--ds-bg);
  text-decoration: none;
  font-weight: 600;
}
.nc-doc-pager span {
  font-size: 12.5px;
  font-weight: 400;
  color: var(--ds-ink-muted);
}
.nc-doc-pager__next {
  margin-left: auto;
  text-align: right;
}
.nc-doc-foot {
  padding: var(--ds-space-6);
  border-top: 1px solid var(--ds-hairline);
  text-align: center;
  font-size: 13.5px;
  color: var(--ds-ink-muted);
}

@media (max-width: 1200px) {
  .nc-doc-layout {
    grid-template-columns: 240px minmax(0, 1fr);
  }
  .nc-doc-aside {
    display: none;
  }
}
@media (max-width: 860px) {
  .nc-doc-layout {
    grid-template-columns: minmax(0, 1fr);
    padding: 0 var(--ds-space-4);
  }
  .nc-doc-top__menu {
    display: block;
  }
  .nc-doc-top__link {
    display: none;
  }
  .nc-doc-top {
    gap: var(--ds-space-2);
    padding: 0 var(--ds-space-3);
  }
  .nc-doc-search {
    flex: 1 1 auto;
  }
  .nc-doc-nav {
    position: fixed;
    top: var(--doc-top);
    left: 0;
    bottom: 0;
    z-index: 15;
    width: min(320px, 86vw);
    max-height: none;
    padding: var(--ds-space-4);
    background: var(--ds-bg);
    box-shadow: var(--ds-shadow-lg);
    transform: translateX(-105%);
    transition: transform 160ms ease;
  }
  .nc-doc-nav--open {
    transform: none;
  }
  .nc-doc-h1 {
    font-size: 28px;
  }
}
@media (min-width: 2200px) {
  body {
    font-size: 17px;
  }
  .nc-doc-layout {
    max-width: 1680px;
  }
  .nc-doc-main {
    max-width: 920px;
  }
}

@media (max-width: 480px) {
  .nc-doc-top__brand span {
    display: none;
  }
}