/* Shared tokens for landing + doc pages */
:root {
  --ink-950: #0b0d10;
  --ink-900: #12151a;
  --ink-700: #252b36;
  --ink-600: #3a4354;
  --accent: #3d9e8f;
  --accent-bright: #5ec4b4;
  --mist: #9aa3b2;
  --white: #ffffff;
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-display: "Space Grotesk", ui-sans-serif, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-weight: 400;
  background: #0b0d10;
  color: #f3f5f8;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.5rem) 1.35rem 3rem;
}

a { color: #5ec4b4; }
a:visited { color: #9bb8d4; }
a:hover { color: #7ed4c6; }
a:focus-visible {
  outline: 2px solid #5ec4b4;
  outline-offset: 2px;
}

.doc-nav {
  font-size: 0.9rem;
  color: var(--mist);
  margin: 0 0 2rem;
}

.doc-nav a {
  color: #5ec4b4;
  text-decoration: underline;
  text-underline-offset: 0.15em;
  border-bottom: 0;
}

.doc-nav a:visited { color: #9bb8d4; }
.doc-nav a:hover { color: #7ed4c6; }

.brand-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.65rem 0.85rem;
  margin: 0 0 1.25rem;
}

a.brand,
a.brand:visited,
a.brand:hover,
a.brand:focus-visible {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  margin: 0;
  color: #f3f5f8;
  text-decoration: none;
  outline-offset: 3px;
}

a.brand .ops,
a.brand:visited .ops,
a.brand:hover .ops {
  color: #5ec4b4;
}

.brand-badge {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #5ec4b4;
  border: 1px solid rgba(94, 196, 180, 0.28);
  background: rgba(94, 196, 180, 0.06);
  padding: 0.2rem 0.45rem;
  line-height: 1.2;
  align-self: center;
}

h1 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  font-size: clamp(1.5rem, 3.5vw, 1.85rem);
  margin: 0 0 0.85rem;
  line-height: 1.2;
}

h2 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin: 2rem 0 0.65rem;
}

p, li {
  color: var(--mist);
  font-size: 1.05rem;
  max-width: 42rem;
}

p { margin: 0 0 0.85rem; }

ul {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
}

li { margin-bottom: 0.4rem; }

h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 1.5rem 0 0.55rem;
}

.lead {
  font-size: 1.12rem;
  color: var(--mist);
  max-width: 40rem;
  margin: 0 0 1.25rem;
}

.diagram {
  margin: 1.25rem 0 1.75rem;
  padding: 1rem 0.75rem;
  border: 1px solid var(--ink-700);
  background: var(--ink-900);
  overflow-x: auto;
}

.diagram .mermaid {
  display: flex;
  justify-content: center;
}

.diagram figcaption {
  margin-top: 0.65rem;
  font-size: 0.85rem;
  color: var(--ink-600);
  text-align: center;
}

pre {
  margin: 0 0 1.25rem;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #d5dae3;
  line-height: 1.45;
}


.callout {
  margin: 1.25rem 0 1.5rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--ink-700);
  border-left: 3px solid var(--accent);
  background: var(--ink-900);
  color: var(--mist);
  font-size: 1rem;
}

.callout strong { color: var(--white); }

.callout-warn {
  border-color: #8a6a2f;
  border-left-color: #c9a227;
  background: #1a160e;
  color: #f0e6d2;
}
.callout-warn strong { color: #f5d78a; }
.callout-warn a { color: #5ec4b4; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
}

th, td {
  text-align: left;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid var(--ink-700);
  color: var(--mist);
  vertical-align: top;
}

th {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--white);
  font-size: 0.85rem;
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ink-700);
  font-size: 0.9rem;
  color: var(--ink-600);
}

.site-footer .cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

.site-footer h3 {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
  margin: 0 0 0.55rem;
}

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

.site-footer li { margin: 0 0 0.35rem; font-size: 0.9rem; }

.site-footer a {
  color: #5ec4b4;
  text-decoration: underline;
  text-underline-offset: 0.15em;
  border-bottom: 0;
}

.site-footer a:visited { color: #9bb8d4; }
.site-footer a:hover { color: #7ed4c6; }

.site-footer .meta {
  color: var(--ink-600);
  font-size: 0.85rem;
}