/* Kontour Flow docs site. Tokens mirror @kontourai/console-kit with the
   theme-flow brand accent. Mobile-first throughout. */

:root {
  color-scheme: dark;
  --k-bg: #0a0e13;
  --k-panel: #111824;
  --k-panel-raised: #16202d;
  --k-line: rgba(150, 180, 210, 0.12);
  --k-line-strong: rgba(150, 180, 210, 0.22);
  --k-shadow: 0 26px 60px -42px rgba(0, 0, 0, 0.95);
  --k-text: #eef3f8;
  --k-text-muted: #aebccb;
  --k-text-faint: #72869b;
  --k-brand: #14a37a;
  --k-brand-bright: #5ce0c6;
  --k-brand-contrast: #06080b;
  --k-positive: #34d399;
  --k-caution: #f3b14b;
  --k-negative: #ff6f6f;
  --k-radius-sm: 9px;
  --k-radius-md: 14px;
  --k-font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --k-font-ui: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --k-font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --header-h: 56px;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --k-bg: #f5f4ef;
    --k-panel: #ffffff;
    --k-panel-raised: #fbfaf7;
    --k-line: rgba(36, 40, 46, 0.12);
    --k-line-strong: rgba(36, 40, 46, 0.2);
    --k-shadow: 0 18px 50px -30px rgba(0, 0, 0, 0.25);
    --k-text: #202124;
    --k-text-muted: #5b626b;
    --k-text-faint: #707782;
    --k-brand: #16806f;
    --k-brand-bright: #16806f;
    --k-brand-contrast: #ffffff;
    --k-positive: #168257;
    --k-caution: #8a5a00;
    --k-negative: #c83b3b;
  }
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  background: var(--k-bg);
  color: var(--k-text);
  font-family: var(--k-font-ui);
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.65;
}

body.nav-open { overflow: hidden; }

a { color: var(--k-brand-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--k-brand);
  color: var(--k-brand-contrast);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--header-h);
  padding: 0 max(16px, env(safe-area-inset-left));
  background: color-mix(in oklab, var(--k-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--k-line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--k-text);
  font-weight: 600;
  font-size: 17px;
  min-height: 44px;
}
.brand:hover { text-decoration: none; }
.brand strong { color: var(--k-brand-bright); font-weight: 700; }
.version-badge {
  font-family: var(--k-font-mono);
  font-size: 11px;
  color: var(--k-text-faint);
  border: 1px solid var(--k-line);
  border-radius: 999px;
  padding: 2px 8px;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--k-brand-bright), var(--k-brand));
  box-shadow: 0 0 14px color-mix(in oklab, var(--k-brand) 60%, transparent);
}

.header-links {
  margin-left: auto;
  display: flex;
  gap: 4px;
}
.header-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  color: var(--k-text-muted);
  font-weight: 500;
}
.header-links a:hover { color: var(--k-text); text-decoration: none; }

/* Mobile nav toggle */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 0;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--k-text);
  transition: transform 0.16s ease, opacity 0.16s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Shell: drawer on mobile, sidebar on desktop */
.shell { display: block; }

.site-nav {
  position: fixed;
  top: var(--header-h);
  bottom: 0;
  left: 0;
  width: min(82vw, 320px);
  padding: 16px 16px max(24px, env(safe-area-inset-bottom));
  background: var(--k-panel);
  border-right: 1px solid var(--k-line);
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  transform: translateX(-105%);
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 25;
}
.site-nav.open { transform: translateX(0); }

.nav-backdrop {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 20;
}

.nav-group h2 {
  margin: 18px 0 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--k-text-faint);
}
.nav-group ul { list-style: none; margin: 0; padding: 0; }
.nav-group a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 4px 10px;
  border-radius: var(--k-radius-sm);
  color: var(--k-text-muted);
}
.nav-group a:hover { color: var(--k-text); background: var(--k-panel-raised); text-decoration: none; }
.nav-group a[aria-current="page"] {
  color: var(--k-brand-bright);
  background: color-mix(in oklab, var(--k-brand) 14%, transparent);
  font-weight: 600;
}

/* Content */
.content {
  padding: 24px max(18px, env(safe-area-inset-right)) 48px max(18px, env(safe-area-inset-left));
  max-width: 860px;
  margin: 0 auto;
}

h1, h2, h3 { font-family: var(--k-font-display); font-weight: 600; line-height: 1.25; }
h1 { font-size: clamp(28px, 5vw, 40px); margin: 0.4em 0 0.5em; }
h2 { font-size: clamp(21px, 3.4vw, 27px); margin: 1.6em 0 0.5em; }
h3 { font-size: clamp(17px, 2.6vw, 20px); margin: 1.4em 0 0.4em; }
h4 { margin: 1.2em 0 0.4em; }

.anchor {
  margin-left: 8px;
  color: var(--k-text-faint);
  opacity: 0;
  font-family: var(--k-font-ui);
}
h1:hover .anchor, h2:hover .anchor, h3:hover .anchor, h4:hover .anchor { opacity: 1; }
@media (hover: none) {
  .anchor { opacity: 0.5; }
}

p, ul, ol { color: var(--k-text-muted); }
li { margin: 0.25em 0; }
strong { color: var(--k-text); }
hr { border: 0; border-top: 1px solid var(--k-line); margin: 2em 0; }

blockquote {
  margin: 1.2em 0;
  padding: 4px 18px;
  border-left: 3px solid var(--k-brand);
  background: var(--k-panel);
  border-radius: 0 var(--k-radius-sm) var(--k-radius-sm) 0;
}
blockquote p { color: var(--k-text); font-style: italic; }

code {
  font-family: var(--k-font-mono);
  font-size: 0.88em;
  background: var(--k-panel-raised);
  border: 1px solid var(--k-line);
  border-radius: 5px;
  padding: 1px 5px;
  overflow-wrap: break-word;
}

pre {
  background: var(--k-panel);
  border: 1px solid var(--k-line);
  border-radius: var(--k-radius-md);
  padding: 14px 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: var(--k-shadow);
}
pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: clamp(12.5px, 1.4vw, 13.5px);
  line-height: 1.6;
  overflow-wrap: normal;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: var(--k-radius-md);
  border: 1px solid var(--k-line-strong);
  box-shadow: var(--k-shadow);
}

/* Tables scroll horizontally on small screens instead of breaking layout */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.2em 0;
  border: 1px solid var(--k-line);
  border-radius: var(--k-radius-md);
}
table { border-collapse: collapse; width: 100%; min-width: 480px; }
th, td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--k-line);
  color: var(--k-text-muted);
  font-size: 0.95em;
}
th {
  color: var(--k-text);
  font-weight: 600;
  background: var(--k-panel-raised);
  white-space: nowrap;
}
tr:last-child td { border-bottom: 0; }

.mermaid {
  background: var(--k-panel);
  border: 1px solid var(--k-line);
  border-radius: var(--k-radius-md);
  padding: 16px;
  overflow-x: auto;
}

/* Landing */
.hero { padding: clamp(24px, 6vw, 64px) 0 8px; }
.hero-kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--k-brand-bright);
}
.hero h1 {
  font-size: clamp(36px, 7.5vw, 64px);
  margin: 0.2em 0;
  background: linear-gradient(120deg, var(--k-text) 40%, var(--k-brand-bright));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lede { font-size: clamp(16px, 2.4vw, 19px); max-width: 56ch; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--k-radius-sm);
  border: 1px solid var(--k-line-strong);
  color: var(--k-text);
  font-weight: 600;
}
.button:hover { text-decoration: none; border-color: var(--k-brand); }
.button.primary {
  background: var(--k-brand);
  border-color: var(--k-brand);
  color: var(--k-brand-contrast);
}
.button.primary:hover { filter: brightness(1.1); }

.hero-terminal { margin-top: 8px; }
.t-pass { color: var(--k-positive); font-weight: 700; }
.t-wait { color: var(--k-caution); font-weight: 700; }
.t-block { color: var(--k-negative); font-weight: 700; }

.features h2, .showcase h2, .quickstart h2 { margin-top: 1.8em; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 14px;
}
.feature {
  background: var(--k-panel);
  border: 1px solid var(--k-line);
  border-radius: var(--k-radius-md);
  padding: 18px;
}
.feature h3 { margin: 0 0 8px; font-size: 17px; }
.feature p { margin: 0; font-size: 0.95em; }

.site-footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--k-line);
  color: var(--k-text-faint);
  font-size: 0.9em;
}

/* Desktop: persistent sidebar */
@media (min-width: 960px) {
  .nav-toggle, .nav-backdrop { display: none; }
  .shell {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    max-width: 1280px;
    margin: 0 auto;
  }
  .site-nav {
    position: sticky;
    top: var(--header-h);
    height: calc(100vh - var(--header-h));
    transform: none;
    transition: none;
    border-right: 1px solid var(--k-line);
    background: transparent;
  }
  .content { padding: 32px 48px 64px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}