/* ============================================================
 * Cassian Gate — docs visual identity
 * Verbatim design tokens from cassiangate.dev-main/index.html
 * lines 20-30 (:root), 35 (body font), 42 (mono font), 93-101 (h2),
 * 102-112 (pre), 163-179 (scope callout).
 * ============================================================ */

/* --- Self-hosted fonts (OFL-1.1; licenses in assets/fonts/) ---- */

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/ibm-plex-sans-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/ibm-plex-sans-500.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/ibm-plex-sans-600.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono-400.woff2") format("woff2");
}

/* --- Design tokens (verbatim from landing-page :root) --------- */

:root,
[data-md-color-scheme="default"],
[data-md-color-scheme="slate"] {
  --cg-bg: #0b1020;
  --cg-text: #e8ecf8;
  --cg-muted: #8b96b5;
  --cg-accent: #7cc4ff;
  --cg-border: #1f2942;
  --cg-code: #070b1a;
  --cg-pass: #4ade80;
  --cg-fail: #f87171;
  --cg-warn: #fbbf24;
}

/* --- mkdocs-material variable mapping ------------------------- */

[data-md-color-scheme="slate"] {
  --md-default-bg-color: var(--cg-bg);
  --md-default-fg-color: var(--cg-text);
  --md-default-fg-color--light: var(--cg-muted);
  --md-default-fg-color--lighter: var(--cg-border);
  --md-default-fg-color--lightest: var(--cg-border);
  --md-primary-fg-color: var(--cg-bg);
  --md-primary-bg-color: var(--cg-text);
  --md-typeset-color: var(--cg-text);
  --md-typeset-a-color: var(--cg-accent);
  --md-accent-fg-color: var(--cg-accent);
  --md-code-fg-color: var(--cg-text);
  --md-code-bg-color: var(--cg-code);
  --md-admonition-bg-color: var(--cg-code);
  --md-typeset-mark-color: var(--cg-warn);
  --md-footer-bg-color: var(--cg-bg);
  --md-footer-bg-color--dark: var(--cg-bg);
}

/* --- Typography (verbatim sizes / families from landing) ----- */

body, .md-typeset {
  font-family: "IBM Plex Sans", Inter, ui-sans-serif, system-ui,
               -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.65;
}

code, pre, .md-typeset code, .md-typeset pre {
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace,
               SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

html { scroll-behavior: smooth; }

/* --- H2 signature treatment (in-page section headers only) --- */
/* Landing-page lines 93-101: uppercase JetBrains Mono, muted,
 * tracking 0.14em. Applies to article content H2 only — NOT
 * mkdocs-material nav/TOC headings (those are structural).       */

.md-typeset h2 {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--cg-muted);
  font-weight: 500;
  margin-top: 2.4em;
  margin-bottom: 0.9em;
}

/* H1 alignment with landing-page header treatment (line 65-71) */
.md-typeset h1 {
  font-size: 2rem;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--cg-text);
}

/* H3+ stays in body sans, matching landing-page strong/li treatment */
.md-typeset h3,
.md-typeset h4 {
  font-family: "IBM Plex Sans", sans-serif;
  font-weight: 500;
  color: var(--cg-text);
}

/* --- Code blocks (verbatim from landing pre at 102-112) ------- */

.md-typeset pre > code,
.md-typeset .highlight pre {
  background: var(--cg-code);
  border: 1px solid var(--cg-border);
  border-radius: 6px;
  padding: 16px 18px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--cg-text);
}

.md-typeset code {
  background: var(--cg-code);
  border: 1px solid var(--cg-border);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.85rem;
}
.md-typeset pre code { border: none; padding: 0; }

/* --- Warning admonition: landing .scope callout (163-179) ----- */

.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-left: 2px solid var(--cg-warn);
  border-top: none; border-right: none; border-bottom: none;
  background: transparent;
  box-shadow: none;
}
.md-typeset .admonition.warning > .admonition-title {
  color: var(--cg-warn);
  background: transparent;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

/* --- Subtle link treatment (lines 180-184 verbatim) ----------- */

.md-typeset a { color: var(--cg-accent); text-decoration: none; }
.md-typeset a:hover { text-decoration: underline; }

/* --- Border-bottom separator pattern (line 153) --------------- */

.md-typeset hr {
  border: none;
  border-bottom: 1px solid var(--cg-border);
  margin: 24px 0;
}

/* --- Grid card subtle refinement (no chrome) ------------------ */

.md-typeset .grid.cards > :is(ul, ol) > li,
.md-typeset .grid > .card {
  background: transparent;
  border: 1px solid var(--cg-border);
  border-radius: 6px;
  box-shadow: none;
}
.md-typeset .grid.cards > :is(ul, ol) > li:hover,
.md-typeset .grid > .card:hover {
  border-color: var(--cg-accent);
  box-shadow: none;
}