/* CrabbyTab site styles. Tokens mirror src/app/globals.css (zinc neutrals, one indigo accent). */
:root {
  --background: 250 250 250;
  --surface: 255 255 255;
  --muted: 244 244 245;
  --border: 228 228 231;
  --border-strong: 212 212 216;
  --fg: 9 9 11;
  --fg-muted: 82 82 91;
  --fg-subtle: 113 113 122;
  --accent: 79 70 229;
  --accent-hover: 67 56 202;
  --accent-fg: 255 255 255;
  --accent-subtle: 238 242 255;
  --accent-text: 67 56 202;
  --success: 21 128 61;
  --warning: 180 83 9;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --topbar-height: 56px;
  --sidebar-width: 248px;
  --content-max: 1200px;
  --font-sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: 9 9 11;
    --surface: 17 17 19;
    --muted: 30 30 34;
    --border: 39 39 42;
    --border-strong: 63 63 70;
    --fg: 244 244 245;
    --fg-muted: 161 161 170;
    --fg-subtle: 130 130 140;
    --accent: 99 102 241;
    --accent-hover: 129 140 248;
    --accent-fg: 255 255 255;
    --accent-subtle: 30 27 75;
    --accent-text: 165 180 252;
    --success: 74 222 128;
    --warning: 251 191 36;
    color-scheme: dark;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--topbar-height) + 16px);
}

body {
  margin: 0;
  background: rgb(var(--background));
  color: rgb(var(--fg));
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-wrap: break-word;
}

img,
svg {
  max-width: 100%;
}

a {
  color: rgb(var(--accent-text));
  text-underline-offset: 2px;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid rgb(var(--accent));
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

code,
pre,
kbd {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 8px 12px;
  background: rgb(var(--surface));
  color: rgb(var(--fg));
  border: 1px solid rgb(var(--border-strong));
  border-radius: var(--radius-md);
}

.skip-link:focus {
  top: 8px;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
  a,
  .button {
    transition: color 120ms, background-color 120ms, border-color 120ms;
  }
}

/* ---------- Top bar (shared) ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgb(var(--surface) / 0.92);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid rgb(var(--border));
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: var(--topbar-height);
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 16px;
}

.guide .topbar-inner {
  max-width: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: rgb(var(--fg));
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 24px;
  height: 24px;
}

.brand-sub {
  color: rgb(var(--fg-muted));
  font-weight: 500;
  padding-left: 8px;
  border-left: 1px solid rgb(var(--border-strong));
}

.topbar-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.topbar-nav a,
.topbar-link {
  color: rgb(var(--fg-muted));
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-md);
  white-space: nowrap;
}

.topbar-nav a:hover,
.topbar-link:hover {
  color: rgb(var(--fg));
  background: rgb(var(--muted));
}

/* ---------- Buttons ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgb(var(--border-strong));
  background: rgb(var(--surface));
  color: rgb(var(--fg));
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
}

.button:hover {
  background: rgb(var(--muted));
}

.button-primary {
  background: rgb(var(--accent));
  border-color: rgb(var(--accent));
  color: rgb(var(--accent-fg));
}

.button-primary:hover {
  background: rgb(var(--accent-hover));
  border-color: rgb(var(--accent-hover));
}

/* ---------- Landing page ---------- */

.landing main {
  display: block;
}

.wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 16px;
}

.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid rgb(var(--border));
  background: rgb(var(--surface));
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }
}

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 2px 10px;
  font-size: 13px;
  font-weight: 500;
  color: rgb(var(--accent-text));
  background: rgb(var(--accent-subtle));
  border-radius: 999px;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0 0 28px;
  max-width: 40em;
  font-size: 18px;
  color: rgb(var(--fg-muted));
}

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

.hero-facts {
  margin: 0;
  padding: 20px;
  list-style: none;
  border: 1px solid rgb(var(--border));
  border-radius: var(--radius-lg);
  background: rgb(var(--background));
  display: grid;
  gap: 14px;
  font-size: 15px;
}

.hero-facts li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
}

.hero-facts svg {
  margin-top: 3px;
  color: rgb(var(--success));
}

.hero-facts strong {
  display: block;
}

.hero-facts span {
  color: rgb(var(--fg-muted));
}

.section {
  padding: 64px 0;
  border-bottom: 1px solid rgb(var(--border));
}

.section-alt {
  background: rgb(var(--surface));
}

.section h2 {
  margin: 0 0 8px;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.section-intro {
  margin: 0 0 32px;
  max-width: 46em;
  color: rgb(var(--fg-muted));
}

.cards {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 20px;
  border: 1px solid rgb(var(--border));
  border-radius: var(--radius-lg);
  background: rgb(var(--surface));
}

.section-alt .card {
  background: rgb(var(--background));
}

.card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 16px;
}

.card h3 svg {
  flex: none;
  color: rgb(var(--accent-text));
}

.card p {
  margin: 0 0 10px;
  font-size: 15px;
  color: rgb(var(--fg-muted));
}

.card a {
  font-size: 14px;
  font-weight: 500;
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  counter-increment: step;
  padding: 20px;
  border-left: 2px solid rgb(var(--accent));
  background: rgb(var(--surface));
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.steps li::before {
  content: "Step " counter(step);
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgb(var(--accent-text));
  margin-bottom: 4px;
}

.steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.steps p {
  margin: 0;
  font-size: 15px;
  color: rgb(var(--fg-muted));
}

.compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 800px) {
  .compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.compare h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.compare ul {
  margin: 0;
  padding-left: 20px;
  color: rgb(var(--fg-muted));
  font-size: 15px;
}

.compare li + li {
  margin-top: 6px;
}

.compare li strong {
  color: rgb(var(--fg));
  font-weight: 600;
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

@media (min-width: 900px) {
  .two-col {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.two-col h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.two-col ol {
  padding-left: 20px;
  color: rgb(var(--fg-muted));
}

.two-col li + li {
  margin-top: 6px;
}

.terminal {
  margin: 16px 0;
  padding: 16px;
  overflow-x: auto;
  border: 1px solid rgb(var(--border));
  border-radius: var(--radius-lg);
  background: rgb(var(--muted));
  line-height: 1.7;
}

.note {
  font-size: 14px;
  color: rgb(var(--fg-muted));
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- Footer (shared) ---------- */

.site-footer {
  padding: 32px 0;
  font-size: 14px;
  color: rgb(var(--fg-muted));
}

.footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 16px;
}

.footer-inner p {
  margin: 0 0 8px;
}

.guide .site-footer {
  border-top: 1px solid rgb(var(--border));
  background: rgb(var(--surface));
}

/* ---------- Guide ---------- */

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 10px;
  border: 1px solid rgb(var(--border-strong));
  border-radius: var(--radius-md);
  background: rgb(var(--surface));
  color: rgb(var(--fg));
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.nav-toggle[hidden] {
  display: none;
}

.search {
  position: relative;
  flex: 1 1 auto;
  max-width: 420px;
  margin-left: auto;
  min-width: 0;
}

.search input {
  width: 100%;
  min-height: 36px;
  padding: 6px 12px;
  border: 1px solid rgb(var(--border-strong));
  border-radius: var(--radius-md);
  background: rgb(var(--surface));
  color: rgb(var(--fg));
  font: inherit;
  font-size: 14px;
}

.search input::placeholder {
  color: rgb(var(--fg-subtle));
}

.search input:focus-visible {
  outline-offset: 0;
}

.search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: min(70vh, 480px);
  overflow-y: auto;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: rgb(var(--surface));
  border: 1px solid rgb(var(--border-strong));
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.18);
}

.search-results[hidden] {
  display: none;
}

.search-results a {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  color: rgb(var(--fg));
  text-decoration: none;
  font-size: 14px;
}

.search-results a:hover,
.search-results a:focus-visible {
  background: rgb(var(--muted));
}

.search-results .result-title {
  display: block;
  font-weight: 600;
}

.search-results .result-section {
  color: rgb(var(--accent-text));
  font-weight: 500;
}

.search-results .result-snippet {
  display: block;
  color: rgb(var(--fg-muted));
  font-size: 13px;
}

.search-results mark {
  background: rgb(var(--accent-subtle));
  color: inherit;
  border-radius: 2px;
}

.search-results .result-empty {
  padding: 8px 10px;
  color: rgb(var(--fg-muted));
  font-size: 14px;
}

.guide-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: 1440px;
  margin: 0 auto;
}

.sidebar {
  padding: 20px 16px;
  font-size: 14px;
  border-bottom: 1px solid rgb(var(--border));
}

.sidebar p {
  margin: 16px 0 4px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: rgb(var(--fg-muted));
}

.sidebar p:first-child {
  margin-top: 0;
}

.sidebar p a {
  font-size: 14px;
  text-transform: none;
  letter-spacing: 0;
}

.sidebar ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sidebar a {
  display: block;
  padding: 4px 8px;
  border-radius: var(--radius-md);
  color: rgb(var(--fg-muted));
  text-decoration: none;
}

.sidebar a:hover {
  color: rgb(var(--fg));
  background: rgb(var(--muted));
}

.sidebar a[aria-current="page"] {
  color: rgb(var(--fg));
  background: rgb(var(--muted));
  font-weight: 600;
  box-shadow: inset 2px 0 0 rgb(var(--accent));
}

.js .sidebar {
  display: none;
}

.js .sidebar.open {
  display: block;
}

@media (min-width: 960px) {
  .guide-shell {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  }
  .sidebar,
  .js .sidebar {
    display: block;
    position: sticky;
    top: var(--topbar-height);
    align-self: start;
    max-height: calc(100vh - var(--topbar-height));
    overflow-y: auto;
    border-bottom: 0;
    border-right: 1px solid rgb(var(--border));
  }
  .nav-toggle {
    display: none !important;
  }
}

@media (min-width: 1280px) {
  .guide-shell {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr) 220px;
  }
}

.toc-column {
  display: none;
}

@media (min-width: 1280px) {
  .toc-column {
    display: block;
    position: sticky;
    top: var(--topbar-height);
    align-self: start;
    max-height: calc(100vh - var(--topbar-height));
    overflow-y: auto;
    padding: 32px 16px;
    font-size: 13px;
  }
}

.toc-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: rgb(var(--fg-muted));
}

.toc ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc a {
  display: block;
  padding: 3px 0;
  color: rgb(var(--fg-muted));
  text-decoration: none;
}

.toc a:hover {
  color: rgb(var(--fg));
}

.content {
  min-width: 0;
  padding: 32px 16px 48px;
}

.content:focus {
  outline: none;
}

@media (min-width: 960px) {
  .content {
    padding: 40px 48px 64px;
  }
}

.prose {
  max-width: 780px;
  font-size: 16px;
}

.prose h1 {
  margin: 0 0 20px;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.prose h2 {
  margin: 40px 0 12px;
  padding-top: 8px;
  font-size: 22px;
  line-height: 1.3;
  border-top: 1px solid rgb(var(--border));
  padding-top: 24px;
}

.prose h3 {
  margin: 28px 0 8px;
  font-size: 18px;
}

.prose h4,
.prose h5,
.prose h6 {
  margin: 24px 0 8px;
  font-size: 16px;
}

.prose .anchor {
  margin-left: 8px;
  color: rgb(var(--fg-subtle));
  text-decoration: none;
  font-weight: 400;
  opacity: 0;
}

.prose h1:hover .anchor,
.prose h2:hover .anchor,
.prose h3:hover .anchor,
.prose h4:hover .anchor,
.prose .anchor:focus-visible {
  opacity: 1;
}

@media (hover: none) {
  .prose .anchor {
    opacity: 0.6;
  }
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre,
.prose .table-wrap {
  margin: 0 0 16px;
}

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

.prose li > ul,
.prose li > ol {
  margin-top: 4px;
  margin-bottom: 0;
}

.prose :not(pre) > code {
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  background: rgb(var(--muted));
  border: 1px solid rgb(var(--border));
}

.prose pre {
  padding: 14px 16px;
  overflow-x: auto;
  border: 1px solid rgb(var(--border));
  border-radius: var(--radius-lg);
  background: rgb(var(--muted));
  line-height: 1.55;
}

.prose blockquote {
  padding: 8px 16px;
  border-left: 3px solid rgb(var(--accent));
  background: rgb(var(--accent-subtle) / 0.6);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: rgb(var(--fg));
}

.prose blockquote > :last-child {
  margin-bottom: 0;
}

.prose hr {
  border: 0;
  border-top: 1px solid rgb(var(--border));
  margin: 32px 0;
}

.prose img {
  height: auto;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid rgb(var(--border));
  border-radius: var(--radius-lg);
  background: rgb(var(--surface));
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.prose th,
.prose td {
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgb(var(--border));
}

.prose th {
  background: rgb(var(--muted));
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: rgb(var(--fg-muted));
}

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

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 780px;
  margin-top: 48px;
}

.pager a {
  display: block;
  padding: 12px 16px;
  border: 1px solid rgb(var(--border));
  border-radius: var(--radius-lg);
  background: rgb(var(--surface));
  color: rgb(var(--fg));
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
}

.pager a:hover {
  border-color: rgb(var(--accent));
}

.pager span {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: rgb(var(--fg-muted));
}

.pager-next {
  text-align: right;
  grid-column: 2;
}

.page-source {
  max-width: 780px;
  margin-top: 24px;
  font-size: 14px;
}

@media (max-width: 600px) {
  .brand-sub,
  .topbar-link {
    display: none;
  }
  .topbar-inner {
    gap: 8px;
  }
  .pager {
    grid-template-columns: 1fr;
  }
  .pager-next {
    grid-column: 1;
  }
  .topbar-nav a.hide-sm {
    display: none;
  }
}

@media print {
  .topbar,
  .sidebar,
  .toc-column,
  .pager,
  .skip-link {
    display: none !important;
  }
  .guide-shell {
    display: block;
  }
}