/* rbac-fs docs site — stylesheet. Pairs with tokens.css (loaded first). */

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg-canvas);
  color: var(--text-primary);
  font: var(--text-body);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
}
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
  border-radius: 4px;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Nav ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 60px;
  padding: 0 28px;
  background: var(--bg-canvas);
  border-bottom: 1px solid var(--border-default);
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand {
  font: 700 17px/1 var(--font-ui);
  color: var(--text-primary);
  white-space: nowrap;
}
.version-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-primary-subtle);
  color: var(--accent-primary);
  font: var(--text-label);
}
.nav-search {
  flex: 1;
  max-width: 380px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  color: var(--text-muted);
  font: var(--text-body-sm);
  cursor: pointer;
}
.nav-search kbd {
  margin-left: auto;
  font: var(--text-label);
  color: var(--text-muted);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 22px;
  font: 500 14px/1 var(--font-ui);
  color: var(--text-secondary);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: 0;
  padding: 6px;
  cursor: pointer;
}
.nav-hamburger span {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  display: block;
}
.nav-right a.active {
  color: var(--accent-primary);
  font-weight: 600;
}

/* ---------- Landing: hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.86fr);
  gap: 56px;
  align-items: center;
  padding: 88px 7vw 64px;
}
.eyebrow {
  font: var(--text-label);
  color: var(--accent-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 14px;
}
.hero h1 {
  font: var(--text-display);
  margin: 0 0 20px;
  color: var(--text-primary);
}
.hero-lead {
  font: var(--text-body-lg);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 0 28px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 8px;
  font: 600 15px/1 var(--font-ui);
  border: 1px solid var(--border-default);
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-primary-hover);
}
.btn-secondary {
  background: var(--bg-canvas);
  color: var(--text-primary);
}

.diff-card {
  background: var(--code-bg);
  border-radius: 12px;
  box-shadow: var(--shadow-float);
  overflow: hidden;
}
.diff-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.diff-filename {
  font: var(--text-body-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}
.diff-badge {
  display: inline-flex;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--status-allow);
  color: var(--status-allow);
  font: var(--text-label);
}
.diff-body {
  padding: 18px 20px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  overflow-x: auto;
}
.diff-body .line {
  white-space: pre;
  color: var(--code-text);
}
.diff-body .add {
  color: #93e6ac;
}
.diff-body .rm {
  color: #f0a5a5;
}

/* ---------- Landing: feature band ---------- */
.feature-band {
  padding: 72px 7vw;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-default);
}
.section-title {
  font: var(--text-h2);
  margin: 0 0 12px;
  color: var(--text-primary);
}
.section-sub {
  font: var(--text-body);
  color: var(--text-secondary);
  margin: 0 0 28px;
  max-width: 640px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.feature-card {
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  padding: 24px 22px;
}
.feature-num {
  display: block;
  font: var(--text-label);
  color: var(--accent-primary);
  margin-bottom: 14px;
}
.feature-card h3 {
  font: var(--text-h3);
  margin: 0 0 8px;
  color: var(--text-primary);
}
.feature-card p {
  font: var(--text-body-sm);
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ---------- Landing: adapter grid ---------- */
.adapter-section {
  padding: 72px 7vw;
}
.adapter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.adapter-card {
  display: block;
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  padding: 18px;
  transition: border-color 0.15s, transform 0.15s;
}
.adapter-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}
.adapter-card strong {
  display: block;
  font: 600 15px/1 var(--font-ui);
  color: var(--text-primary);
  margin-bottom: 6px;
}
.adapter-card span {
  font: var(--text-body-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-primary);
}

/* ---------- Footer ---------- */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 28px 7vw;
  border-top: 1px solid var(--border-default);
  color: var(--text-muted);
  font: var(--text-body-sm);
  flex-wrap: wrap;
}
.site-footer a {
  color: var(--text-muted);
}
.site-footer a:hover {
  color: var(--accent-primary);
}

/* ---------- Docs layout ---------- */
.docs-shell {
  display: flex;
  align-items: flex-start;
}
.docs-sidebar {
  flex: 0 0 var(--sidebar-w);
  width: var(--sidebar-w);
  position: sticky;
  top: 60px;
  height: calc(100vh - 60px);
  overflow-y: auto;
  padding: 28px 20px 40px 24px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-default);
}
.sidebar-group {
  margin-bottom: 18px;
}
.sidebar-group-label {
  display: block;
  font: var(--text-label);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px 8px;
}
.sidebar-link {
  display: block;
  padding: 7px 10px;
  border-radius: 6px;
  font: var(--text-body-sm);
  font-size: 13.5px;
  color: var(--text-secondary);
}
.sidebar-link:hover {
  background: rgba(15, 23, 42, 0.04);
  color: var(--text-primary);
}
.sidebar-link.active {
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  color: var(--accent-primary);
  font-weight: 600;
}

.docs-content {
  flex: 1 1 auto;
  min-width: 0;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 48px 40px 96px;
}
.breadcrumb {
  font: var(--text-body-sm);
  color: var(--text-muted);
  margin: 0 0 10px;
}
.docs-content h1 {
  font: var(--text-h1);
  margin: 0 0 14px;
  color: var(--text-primary);
}
.docs-lead {
  font: var(--text-body-lg);
  color: var(--text-secondary);
  margin: 0 0 32px;
  max-width: 720px;
}
.doc-section {
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin: 0 0 18px;
  scroll-margin-top: 76px;
  box-shadow: var(--shadow-card);
}
.doc-section h2 {
  font: var(--text-h3);
  font-size: 21px;
  margin: 0 0 12px;
  color: var(--text-primary);
}
.doc-section h3 {
  font: var(--text-h3);
  margin: 20px 0 10px;
  color: var(--text-primary);
}
.doc-section p {
  font: var(--text-body);
  color: var(--text-secondary);
  margin: 0 0 12px;
}
.doc-section ul,
.doc-section ol {
  color: var(--text-secondary);
  padding-left: 22px;
  margin: 0 0 12px;
}
.doc-section li {
  margin: 6px 0;
  line-height: 1.6;
}
.doc-section li > p {
  margin: 0;
  display: inline;
}
.doc-section code:not(pre code) {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-default);
  padding: 2px 6px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--text-primary);
}
.doc-section a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 3px;
}
.doc-section table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 14px;
  font: var(--text-body-sm);
}
.doc-section th,
.doc-section td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-default);
  color: var(--text-secondary);
}
.doc-section th {
  color: var(--text-primary);
  font-weight: 600;
}

.code-wrap {
  position: relative;
  margin: 16px 0 4px;
}
.code-block {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 9px;
  padding: 18px 20px;
  overflow-x: auto;
  font: var(--text-code);
  white-space: pre;
}
.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--code-text);
  font: 600 11px/1 var(--font-ui);
  cursor: pointer;
}
.copy-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}
.copy-btn.copied {
  background: var(--status-allow);
  border-color: var(--status-allow);
  color: #fff;
}

.callout {
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 0 0 12px;
  font: var(--text-body-sm);
  border: 1px solid var(--border-default);
  background: var(--bg-surface-alt);
  color: var(--text-secondary);
}
.callout.security {
  background: var(--status-deny-subtle);
  border-color: #fecaca;
  color: #7f1d1d;
}
.callout.tip {
  background: var(--status-allow-subtle);
  border-color: #bbf7d0;
  color: #14532d;
}

.docs-toc {
  flex: 0 0 var(--toc-w);
  width: var(--toc-w);
  position: sticky;
  top: 60px;
  height: calc(100vh - 60px);
  overflow-y: auto;
  padding: 48px 24px 40px;
}
.toc-label {
  font: var(--text-label);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.toc-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 8px;
}
.toc-list a {
  font: var(--text-body-sm);
  color: var(--text-secondary);
}
.toc-list a:hover,
.toc-list a.active {
  color: var(--accent-primary);
}
.next-card {
  display: block;
  background: var(--text-primary);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.next-card span {
  display: block;
  font: var(--text-label);
  color: var(--status-allow);
  margin-bottom: 6px;
}
.next-card strong {
  font: 600 16px/1.3 var(--font-ui);
  color: #fff;
}

/* ---------- Search overlay ---------- */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(15, 23, 42, 0.45);
  padding: 12vh 20px 20px;
}
.search-overlay.open {
  display: block;
}
.search-panel {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-canvas);
  border-radius: 12px;
  box-shadow: var(--shadow-float);
  overflow: hidden;
}
.search-panel input {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--border-default);
  padding: 18px 20px;
  font: var(--text-body-lg);
  font-size: 16px;
  color: var(--text-primary);
  outline: none;
}
.search-results {
  max-height: 50vh;
  overflow-y: auto;
  padding: 8px;
}
.search-result {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
}
.search-result:hover {
  background: var(--bg-surface);
}
.search-result strong {
  display: block;
  font: 600 14px/1.3 var(--font-ui);
  color: var(--text-primary);
}
.search-result span {
  display: block;
  font: var(--text-body-sm);
  color: var(--text-muted);
  margin-top: 2px;
}
.search-empty {
  padding: 16px;
  color: var(--text-muted);
  font: var(--text-body-sm);
}

/* ---------- Mobile drawer ---------- */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  z-index: 40;
}
.mobile-overlay.open {
  display: block;
}
body.nav-open .docs-sidebar {
  display: block;
}

/* ---------- Blog: list page ---------- */
.blog-header {
  padding: 56px 7vw 40px;
}
.blog-header h1 {
  font: var(--text-display);
  font-size: clamp(36px, 5vw, 48px);
  margin: 6px 0 0;
  color: var(--text-primary);
}
.post-list-wrap {
  padding: 0 7vw 80px;
  display: flex;
  justify-content: center;
}
.post-list {
  width: 100%;
  max-width: 880px;
}
.post-row {
  display: block;
  padding: 28px 0;
  border-top: 1px solid var(--border-default);
}
.post-row.first {
  border-top: 0;
}
.post-meta {
  font: var(--text-label);
  font-size: 12px;
  color: var(--text-muted);
  margin: 0 0 8px;
}
.post-title {
  font: 700 26px/1.25 var(--font-ui);
  color: var(--text-primary);
  margin: 0 0 10px;
}
.post-excerpt {
  font: var(--text-body);
  font-size: 15.5px;
  color: var(--text-secondary);
  margin: 0 0 14px;
  max-width: 760px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-pill {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-primary-subtle);
  color: var(--accent-primary);
  font: var(--text-label);
  font-size: 11px;
}

/* ---------- Blog: detail page ---------- */
.article-wrap {
  padding: 48px 7vw 40px;
  display: flex;
  justify-content: center;
}
.article {
  width: 100%;
  max-width: 740px;
}
.article > .breadcrumb {
  margin-bottom: 6px;
}
.article > .breadcrumb a {
  color: var(--text-muted);
}
.article > .breadcrumb a:hover {
  color: var(--accent-primary);
}
.article > .tag-row {
  margin-bottom: 14px;
}
.article h1 {
  font: 700 clamp(30px, 4.5vw, 42px)/1.15 var(--font-ui);
  color: var(--text-primary);
  margin: 0 0 16px;
}
.byline {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px;
  font: var(--text-body-sm);
  color: var(--text-muted);
}
.byline .avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-primary);
  display: inline-block;
}
.byline-name {
  color: var(--text-primary);
  font-weight: 500;
}
.byline-dot {
  color: var(--border-strong);
}
.byline-date {
  font-family: var(--font-mono);
  font-size: 12px;
}
.article h2 {
  font: 700 26px/1.3 var(--font-ui);
  color: var(--text-primary);
  margin: 32px 0 14px;
  scroll-margin-top: 76px;
}
.article h3 {
  font: 600 20px/1.3 var(--font-ui);
  color: var(--text-primary);
  margin: 24px 0 10px;
}
.article p {
  font: var(--text-body);
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0 0 16px;
}
.article code:not(pre code) {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-default);
  padding: 2px 6px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--text-primary);
}
.article a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 3px;
}
.article ul {
  color: var(--text-secondary);
  padding-left: 22px;
  margin: 0 0 16px;
}
.article li {
  margin: 6px 0;
  line-height: 1.6;
}

.related-link {
  background: var(--accent-primary-subtle);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin: 4px 0 20px;
}
.related-label {
  display: block;
  font: var(--text-label);
  color: var(--accent-primary);
  margin-bottom: 4px;
}
.related-link a {
  font: 600 15px/1.4 var(--font-ui);
  color: var(--accent-primary);
  text-decoration: none;
}

.related-band {
  padding: 48px 7vw 56px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-default);
}
.related-label-band {
  font: var(--text-label);
  color: var(--accent-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 18px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
}
.related-card {
  display: block;
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.related-card-date {
  display: block;
  font: var(--text-label);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.related-card strong {
  font: 600 16px/1.35 var(--font-ui);
  color: var(--text-primary);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .docs-toc {
    display: none;
  }
  .docs-content {
    max-width: 720px;
  }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 56px 6vw 48px;
  }
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .adapter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .nav-search {
    display: none;
  }
  .nav-hamburger {
    display: flex;
  }
  .nav-right a:not(.nav-github) {
    display: none;
  }
  .docs-sidebar {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    width: 82vw;
    max-width: 320px;
    z-index: 50;
    box-shadow: var(--shadow-float);
  }
  body.nav-open .mobile-overlay {
    display: block;
  }
  .docs-content {
    padding: 28px 20px 64px;
  }
  .doc-section {
    padding: 20px;
  }
  .article-wrap,
  .post-list-wrap {
    padding-left: 20px;
    padding-right: 20px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .feature-grid,
  .adapter-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 38px;
  }
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}