/* AIGuard site — single stylesheet, no build step.
   Tokens first, then base, then components. Dark is the default theme. */

:root {
  color-scheme: dark;
  --bg: #0c1116;
  --bg-soft: #10171e;
  --surface: #151e27;
  --surface-2: #1a2530;
  --border: #26313d;
  --text: #e3ebf2;
  --text-muted: #93a3b1;
  --primary: #34d0a4;
  --primary-hover: #5be0ba;
  --on-primary: #06281f;
  --link: #4ed7ae;
  --safe: #4ade80;
  --caution: #f5b942;
  --high: #fb923c;
  --refused: #f26d6d;
  --code-bg: #0a0e13;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", monospace;

  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 16px; --sp-4: 24px;
  --sp-5: 32px; --sp-6: 40px; --sp-7: 48px; --sp-8: 64px; --sp-9: 96px;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-hero: clamp(2rem, 5vw, 2.75rem);

  --radius: 8px;
  --max: 1120px;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #fbfcfd;
  --bg-soft: #f1f5f8;
  --surface: #ffffff;
  --surface-2: #eef3f6;
  --border: #d9e2e9;
  --text: #16202a;
  --text-muted: #4c5c6b;
  --primary: #0c7a5e;
  --primary-hover: #0a6b52;
  --on-primary: #ffffff;
  --link: #0a6e54;
  --safe: #0f7a3d;
  --caution: #9a6200;
  --high: #b45309;
  --refused: #c22430;
  --code-bg: #0c1116; /* terminal stays dark in light mode */
  --shadow: 0 8px 32px rgba(16, 32, 42, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 var(--sp-3); font-weight: 650; }
h1 { font-size: var(--text-hero); letter-spacing: -0.02em; }
h2 { font-size: var(--text-2xl); letter-spacing: -0.01em; margin-top: var(--sp-7); }
h3 { font-size: var(--text-lg); margin-top: var(--sp-5); }
p { margin: 0 0 var(--sp-3); max-width: 68ch; }
ul, ol { margin: 0 0 var(--sp-3); padding-left: var(--sp-4); }
li { margin-bottom: var(--sp-2); }
strong { font-weight: 650; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
/* Links inside prose must be identifiable without color (WCAG 1.4.1) */
main :is(p, li, td) a:not(.btn) {
  text-decoration: underline;
  text-underline-offset: 2px;
}

code, kbd, pre, .mono { font-family: var(--font-mono); }
:not(pre) > code {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.875em;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: var(--on-primary);
  padding: var(--sp-2) var(--sp-3);
  z-index: 100;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--sp-4); }
.section { padding: var(--sp-8) 0; }
.section-tight { padding: var(--sp-7) 0; }
.muted { color: var(--text-muted); }
.eyebrow {
  font-size: var(--text-sm);
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--sp-3);
}

/* ---- Beta banner ---- */
.beta-banner {
  background: color-mix(in srgb, var(--caution) 12%, var(--bg));
  border-bottom: 1px solid color-mix(in srgb, var(--caution) 40%, var(--border));
  color: var(--text);
  font-size: var(--text-sm);
  text-align: center;
  padding: var(--sp-2) var(--sp-3);
}
.beta-banner strong { color: var(--caution); }
[data-theme="light"] .beta-banner strong { color: #7a4d00; }
.beta-banner a { color: inherit; text-decoration: underline; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  height: 56px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand svg { color: var(--primary); flex: none; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: var(--sp-4); }
.site-nav a {
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-weight: 550;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); text-decoration: none; }
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: var(--radius);
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: none;
}
.theme-toggle:hover { color: var(--text); border-color: var(--primary); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--text-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { border-color: var(--border); color: var(--text); background: var(--surface); }
.btn-ghost:hover { border-color: var(--primary); }

/* ---- Hero ---- */
.hero { padding: var(--sp-8) 0 var(--sp-7); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: var(--sp-7);
  align-items: center;
}
.hero p.lede { font-size: var(--text-lg); color: var(--text-muted); }
.hero-ctas { display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-top: var(--sp-4); }
.hero-facts {
  margin-top: var(--sp-5);
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.hero-facts li { margin: 0; display: flex; align-items: center; gap: var(--sp-2); }
.hero-facts li::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex: none;
}

/* ---- Terminal ---- */
.terminal {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  color: #d6e0e8;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 10px var(--sp-3);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}
[data-theme="light"] .terminal-bar { background: #16202a; color: #93a3b1; }
.terminal-title { margin: 0 auto; }
.terminal-replay {
  background: none;
  border: 1px solid var(--border);
  color: inherit;
  font: inherit;
  border-radius: 4px;
  padding: 2px 10px;
  cursor: pointer;
}
.terminal-replay:hover { color: var(--primary); border-color: var(--primary); }
.terminal-body {
  padding: var(--sp-3);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  overflow-x: auto;
  min-height: 380px;
}
.tl { white-space: pre-wrap; word-break: break-word; }
.tl-cmd { color: #e8eef4; }
.tl-cmd::before { content: "$ "; color: var(--primary); }
.tl-note { color: #7f8f9d; }
.tl-dim { color: #7f8f9d; }
.tl-allow { color: var(--safe); }
.tl-ask { color: var(--caution); }
.tl-block { color: var(--refused); }
.tl-gap { height: 0.8em; }
.t-caret::after {
  content: "▋";
  color: var(--primary);
  animation: caret 1s steps(1) infinite;
}
@keyframes caret { 50% { opacity: 0; } }

/* JS drives reveal: only hidden while playing */
.terminal.playing .tl { visibility: hidden; }
.terminal.playing .tl.shown { visibility: visible; }

.terminal-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
  margin-top: var(--sp-3);
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.terminal-legend span { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-allow { background: var(--safe); }
.dot-ask { background: var(--caution); }
.dot-block { background: var(--refused); }

/* ---- Badges ---- */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.badge-allow, .badge-low { color: var(--safe); }
.badge-ask, .badge-medium { color: var(--caution); }
.badge-high { color: var(--high); }
.badge-block, .badge-critical { color: var(--refused); }

/* ---- Cards / grids ---- */
.grid { display: grid; gap: var(--sp-3); }
/* Prevent long code/terminal content from blowing out grid columns */
.grid > *, .install-grid > *, .hero-grid > *, .threat-grid > *,
.docs-layout > * { min-width: 0; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-4);
}
.card h3 { margin-top: 0; font-size: var(--text-base); }
.card p { font-size: var(--text-sm); color: var(--text-muted); margin-bottom: 0; }
.card .card-top { display: flex; align-items: center; gap: var(--sp-2); margin-bottom: var(--sp-2); }
.card .card-top svg { color: var(--primary); flex: none; }

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--primary) 14%, var(--surface));
  color: var(--primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-sm);
  margin-bottom: var(--sp-3);
}
.step code { font-size: var(--text-xs); }

.decision-card { border-top: 3px solid var(--border); }
.decision-card.allow { border-top-color: var(--safe); }
.decision-card.ask { border-top-color: var(--caution); }
.decision-card.block { border-top-color: var(--refused); }
.decision-card h3 { display: flex; align-items: center; gap: var(--sp-2); }

/* ---- Limits section ---- */
.limits {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.limits-list { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--sp-3); }
.limits-list li {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--caution);
  border-radius: var(--radius);
  padding: var(--sp-3) var(--sp-4);
}
.limits-list strong { display: block; margin-bottom: var(--sp-1); }
.limits-list p { margin: 0; font-size: var(--text-sm); color: var(--text-muted); }

/* ---- Code blocks with copy ---- */
.codeblock {
  position: relative;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 0 0 var(--sp-4);
}
.codeblock pre {
  margin: 0;
  padding: var(--sp-3);
  padding-right: 72px;
  overflow-x: auto;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: #d6e0e8;
}
.codeblock .copy {
  position: absolute;
  top: var(--sp-2);
  right: var(--sp-2);
  /* Code blocks are dark in both themes — pin dark-scheme colors */
  background: #1a2530;
  border: 1px solid #26313d;
  color: #b8c4cf;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
}
.codeblock .copy:hover { color: #5be0ba; border-color: #34d0a4; }
.codeblock .copy.copied { color: #4ade80; border-color: #4ade80; }
.codeblock .c { color: #7f8f9d; } /* comment */

/* ---- Install ---- */
.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); align-items: start; }
.req-list { list-style: none; padding: 0; }
.req-list li { display: flex; gap: var(--sp-2); align-items: baseline; font-size: var(--text-sm); }
.req-list li::before { content: "–"; color: var(--primary); }

/* ---- Docs layout ---- */
.docs-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: var(--sp-6);
  padding: var(--sp-5) 0 var(--sp-8);
}
.docs-sidebar { align-self: start; position: sticky; top: 76px; }
.docs-sidebar nav { display: grid; gap: 2px; }
.docs-sidebar .nav-group {
  font-size: var(--text-xs);
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: var(--sp-4) 0 var(--sp-2);
}
.docs-sidebar .nav-group:first-child { margin-top: 0; }
.docs-sidebar nav a {
  display: block;
  padding: 6px var(--sp-3);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: var(--text-sm);
  border-left: 2px solid transparent;
}
.docs-sidebar nav a:hover { color: var(--text); background: var(--surface); text-decoration: none; }
.docs-sidebar nav a[aria-current="page"] {
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
  border-left-color: var(--primary);
  border-radius: 0 6px 6px 0;
}
.docs-content { min-width: 0; }
.docs-content h1 { margin-bottom: var(--sp-2); }
.docs-content .page-desc { color: var(--text-muted); font-size: var(--text-lg); margin-bottom: var(--sp-5); }
.docs-content h2 { margin-top: var(--sp-6); padding-top: var(--sp-3); border-top: 1px solid var(--border); }
.docs-content h2:first-of-type { border-top: 0; padding-top: 0; }
.heading-anchor {
  opacity: 0;
  margin-left: var(--sp-2);
  font-size: 0.8em;
  color: var(--text-muted);
  transition: opacity 150ms ease;
}
h2:hover .heading-anchor, h3:hover .heading-anchor,
.heading-anchor:focus { opacity: 1; text-decoration: none; }

.sidebar-toggle {
  display: none;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 10px var(--sp-3);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  margin-bottom: var(--sp-3);
}

/* ---- Admonitions ---- */
.admonition {
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: var(--radius);
  padding: var(--sp-3) var(--sp-4);
  margin: 0 0 var(--sp-4);
  background: var(--surface);
}
.admonition .admonition-title {
  font-weight: 650;
  font-size: var(--text-sm);
  margin-bottom: var(--sp-1);
}
.admonition p { font-size: var(--text-sm); margin-bottom: var(--sp-2); }
.admonition p:last-child { margin-bottom: 0; }
.admonition.note { border-left-color: var(--primary); }
.admonition.note .admonition-title { color: var(--primary); }
.admonition.warning { border-left-color: var(--caution); }
.admonition.warning .admonition-title { color: var(--caution); }
.admonition.danger { border-left-color: var(--refused); }
.admonition.danger .admonition-title { color: var(--refused); }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; margin-bottom: var(--sp-4); }
table {
  border-collapse: collapse;
  width: 100%;
  font-size: var(--text-sm);
}
th, td {
  text-align: left;
  padding: 10px var(--sp-3);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  font-weight: 650;
  color: var(--text);
  background: var(--surface);
  white-space: nowrap;
}
tr:last-child td { border-bottom: 0; }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: var(--sp-6) 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  justify-content: space-between;
  align-items: baseline;
}
.footer-links { display: flex; gap: var(--sp-4); flex-wrap: wrap; list-style: none; padding: 0; margin: 0; }
.footer-links li { margin: 0; }
.footer-links a { color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }
.footer-note { margin: var(--sp-3) 0 0; font-size: var(--text-xs); }

/* ---- Security page ---- */
.threat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-3); }
.threat-in { border-left: 3px solid var(--safe); }
.threat-out { border-left: 3px solid var(--refused); }

/* ---- Motion ---- */
@media (prefers-reduced-motion: no-preference) {
  .card, .btn, .site-nav a, .docs-sidebar nav a { transition: all 150ms ease; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .install-grid, .threat-grid { grid-template-columns: 1fr; }
  .docs-layout { grid-template-columns: 1fr; gap: var(--sp-4); }
  .sidebar-toggle { display: block; }
  .docs-sidebar { position: static; }
  .docs-sidebar nav { display: none; }
  .docs-sidebar.open nav { display: grid; }
}
@media (max-width: 560px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .section { padding: var(--sp-7) 0; }
  .hero { padding: var(--sp-6) 0 var(--sp-5); }
  .site-nav { gap: var(--sp-3); }
  .terminal-body { font-size: 12px; min-height: 320px; }
}

/* Utilities — keep these instead of inline style= attributes so the site's
   Content-Security-Policy can forbid inline styles entirely. */
.u-text-center { text-align: center; }
.u-pt-24 { padding-top: 96px; }
.u-mx-auto { margin-inline: auto; }
.u-jc-center { justify-content: center; }
.u-mt-4 { margin-top: var(--sp-4); }
.u-wrap-narrow { max-width: 860px; }
.u-text-lg { font-size: var(--text-lg); }