/* ==========================================================================
   goca — go-ca.org design system
   Hand-written CSS. No frameworks, no external fonts, no images.
   Identity: engineering-paper neutrals, verification-teal accent,
   ui-monospace as the technical voice (labels, badges, data, wordmark).
   ========================================================================== */

/* ---------- Tokens ------------------------------------------------------ */
:root {
  /* type */
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", SFMono-Regular, Menlo, Consolas,
          "Liberation Mono", monospace;

  /* light palette (default) */
  --bg: #f6f8f8;
  --surface: #ffffff;
  --surface-2: #eef2f1;
  --ink: #131c1a;
  --ink-2: #46534f;
  --ink-3: #6d7a76;
  --line: #dce3e1;
  --line-strong: #c2cdca;
  --accent: #0d7a68;
  --accent-strong: #0a5f51;
  --accent-soft: #e0f0ec;
  --accent-ink: #ffffff;
  --ok: #1a7f37;
  --ok-soft: #e2f2e5;
  --warn: #8a6500;
  --warn-soft: #f8efd4;
  --danger: #b3261e;
  --danger-soft: #f9e5e3;
  --plan: #1c6fae;
  --plan-soft: #e3eefa;
  --shadow-1: 0 1px 2px rgba(19, 28, 26, 0.06), 0 1px 1px rgba(19, 28, 26, 0.04);
  --shadow-2: 0 4px 16px rgba(19, 28, 26, 0.08), 0 1px 3px rgba(19, 28, 26, 0.06);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;

  /* type scale */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-3xl: clamp(2.4rem, 5.2vw, 3.4rem);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1211;
    --surface: #141a19;
    --surface-2: #1b2322;
    --ink: #e6ecea;
    --ink-2: #aeb9b6;
    --ink-3: #7e8a87;
    --line: #25302e;
    --line-strong: #38453f;
    --accent: #39c4a8;
    --accent-strong: #5ad4bb;
    --accent-soft: #12302a;
    --accent-ink: #06231d;
    --ok: #4cc26a;
    --ok-soft: #142a1a;
    --warn: #d9a63f;
    --warn-soft: #2d2512;
    --danger: #e5726a;
    --danger-soft: #331815;
    --plan: #62a8e0;
    --plan-soft: #13263a;
    --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-2: 0 4px 18px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}

/* ---------- Base -------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@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;
  }
}
body {
  margin: 0;
  font-family: var(--sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  line-height: 1.15;
  letter-spacing: -0.015em;
  font-weight: 750;
  text-wrap: balance;
}
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent);
  text-underline-offset: 0.18em;
}
a:hover { text-decoration-color: var(--accent); }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}
ul, ol { margin: 0 0 1em; padding-left: 1.4em; }
li { margin-bottom: 0.35em; }
strong { font-weight: 650; }
hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.5rem 0;
}
svg { display: block; max-width: 100%; }
.sr-only {
  position: absolute;
  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: 1rem; top: -4rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  transition: top 120ms ease;
}
.skip-link:focus { top: 1rem; }

/* ---------- Code -------------------------------------------------------- */
code, kbd, samp, pre {
  font-family: var(--mono);
  font-size: 0.9em;
}
code {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}
pre {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  line-height: 1.55;
  margin: 0 0 1.25rem;
}
pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: var(--fs-sm);
}

/* ---------- Layout primitives ------------------------------------------- */
.container {
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}
.container-narrow { max-width: 46rem; }
.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section-alt {
  background: var(--surface);
  border-block: 1px solid var(--line);
}
.section-head { max-width: 46rem; margin-bottom: 2.5rem; }
.eyebrow {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
.lede {
  font-size: var(--fs-md);
  color: var(--ink-2);
  max-width: 42rem;
}
.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }

/* ---------- Cards ------------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-1);
}
.card h3, .card h4 { margin-bottom: 0.4em; }
.card-title-mono {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.card p { color: var(--ink-2); font-size: var(--fs-sm); }
.section-alt .card { background: var(--bg); }

/* ---------- Badges & pills ---------------------------------------------- */
.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1;
  padding: 0.35em 0.7em;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--ink-2);
  white-space: nowrap;
  vertical-align: middle;
}
.badge-available {
  color: var(--ok);
  background: var(--ok-soft);
  border-color: color-mix(in srgb, var(--ok) 35%, transparent);
}
.badge-roadmap {
  color: var(--warn);
  background: var(--warn-soft);
  border-color: color-mix(in srgb, var(--warn) 35%, transparent);
}
.badge-version {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

/* Ticket status pills — vocabulary from docs/architecture.md (enforced set) */
.pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  line-height: 1;
  padding: 0.35em 0.7em;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--ink-2);
  white-space: nowrap;
}

/* progress / attention */
.pill-open,
.pill-in-progress,
.pill-need-more-info {
  color: var(--plan);
  background: var(--plan-soft);
  border-color: color-mix(in srgb, var(--plan) 35%, transparent);
}

/* positive resolution */
.pill-fixed,
.pill-implemented,
.pill-fix-planned,
.pill-feature-planned {
  color: var(--ok);
  background: var(--ok-soft);
  border-color: color-mix(in srgb, var(--ok) 35%, transparent);
}

/* under consideration */
.pill-feature-considered {
  color: var(--warn);
  background: var(--warn-soft);
  border-color: color-mix(in srgb, var(--warn) 35%, transparent);
}

/* neutral terminal states: not-a-bug, works-as-designed, duplicate,
   wont-fix, closed — keep the .pill default (grey). */
.pill-wont-fix { text-decoration: line-through; text-decoration-thickness: 1px; }

/* Online / offline dot (support-bot presence) */
.dot {
  display: inline-block;
  width: 0.55em;
  height: 0.55em;
  border-radius: 50%;
  background: var(--ink-3);
  vertical-align: baseline;
  margin-right: 0.4em;
}
.dot-online {
  background: var(--ok);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--ok) 45%, transparent);
  animation: dot-pulse 2.4s ease-out infinite;
}
.dot-offline { background: var(--ink-3); }

@keyframes dot-pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--ok) 45%, transparent); }
  70%  { box-shadow: 0 0 0 6px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

@media (prefers-reduced-motion: reduce) {
  .dot-online { animation: none; }
}

/* ---------- Buttons ----------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--sans);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1;
  padding: 0.8em 1.35em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 140ms ease, border-color 140ms ease,
              color 140ms ease, box-shadow 140ms ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  box-shadow: var(--shadow-1);
}
.btn-primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}
.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn-block { width: 100%; justify-content: center; }

/* ---------- Tables ------------------------------------------------------ */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.table-wrap table { margin: 0; border: 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}
th, td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
thead th {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--surface-2);
  border-bottom: 1px solid var(--line-strong);
}
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ---------- Callouts ---------------------------------------------------- */
.callout {
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: var(--radius);
  padding: 1.1rem 1.35rem;
  margin: 1.5rem 0;
  font-size: var(--fs-sm);
  color: var(--ink);
}
.callout > :last-child { margin-bottom: 0; }
.callout-label {
  display: block;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}
.callout-warn {
  background: var(--warn-soft);
  border-color: color-mix(in srgb, var(--warn) 35%, transparent);
}
.callout-warn .callout-label { color: var(--warn); }
.callout-danger {
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 35%, transparent);
}
.callout-danger .callout-label { color: var(--danger); }

/* ---------- Training frames --------------------------------------------- */
.metaphor,
.metaphor-limits,
.goal {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.35rem;
  margin: 1.25rem 0;
  font-size: var(--fs-sm);
}
.metaphor { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 25%, transparent); }
.metaphor-limits { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 28%, transparent); }
.goal {
  background: var(--surface);
  border-style: dashed;
  font-style: italic;
  color: var(--ink-2);
}
.metaphor::before,
.metaphor-limits::before,
.goal::before {
  display: block;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  font-style: normal;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.metaphor::before { content: "Metaphor"; color: var(--accent); }
.metaphor-limits::before { content: "Where the metaphor breaks"; color: var(--warn); }
.goal::before { content: "Now I can"; color: var(--ink-3); }

/* ---------- Navigation --------------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 3.75rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--ink);
  margin-right: auto;
}
.brand-mark { color: var(--accent); }
.brand-name {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}
.nav-links > a {
  font-size: var(--fs-sm);
  font-weight: 550;
  color: var(--ink-2);
  text-decoration: none;
  padding: 0.35rem 0;
}
.nav-links > a:hover { color: var(--accent); }
.nav-links > a[aria-current="page"] {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--accent);
}
.nav-cta { margin-left: 0.25rem; }
.nav-links > a.nav-cta { color: var(--accent-ink); padding: 0.8em 1.35em; }
.nav-links > a.nav-cta:hover { color: var(--accent-ink); }

/* Training dropdown (details-based, no JS) */
.nav-drop { position: relative; }
.nav-drop > summary {
  list-style: none;
  cursor: pointer;
  font-size: var(--fs-sm);
  font-weight: 550;
  color: var(--ink-2);
  padding: 0.35rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
}
.nav-drop > summary::-webkit-details-marker { display: none; }
.nav-drop > summary::after {
  content: "";
  width: 0.45em;
  height: 0.45em;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 140ms ease;
}
.nav-drop[open] > summary::after { transform: rotate(225deg) translateY(-2px); }
.nav-drop > summary:hover { color: var(--accent); }
.nav-drop-menu {
  position: absolute;
  top: calc(100% + 0.6rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 11rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  padding: 0.4rem;
  display: flex;
  flex-direction: column;
}
.nav-drop-menu a {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--fs-sm);
  color: var(--ink-2);
  text-decoration: none;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-sm);
}
.nav-drop-menu a:hover {
  background: var(--accent-soft);
  color: var(--ink);
}
.nav-lock { color: var(--ink-3); flex: none; }

/* Burger (checkbox-based, no JS) */
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none;
  cursor: pointer;
  padding: 0.6rem;
  margin: -0.6rem;
  border-radius: var(--radius-sm);
}
.nav-burger .bars,
.nav-burger .bars::before,
.nav-burger .bars::after {
  content: "";
  display: block;
  width: 1.25rem;
  height: 2px;
  border-radius: 1px;
  background: var(--ink);
  transition: transform 160ms ease, opacity 160ms ease;
}
.nav-burger .bars { position: relative; }
.nav-burger .bars::before { position: absolute; top: -6px; }
.nav-burger .bars::after { position: absolute; top: 6px; }
.nav-toggle:focus-visible + .nav-burger {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 47.9rem) {
  .nav-burger { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 0.75rem clamp(1rem, 4vw, 2rem) 1.25rem;
    box-shadow: var(--shadow-2);
  }
  .nav-toggle:checked ~ .nav-links { display: flex; }
  .nav-toggle:checked ~ .nav-burger .bars { transform: rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger .bars::before { transform: rotate(90deg); top: 0; }
  .nav-toggle:checked ~ .nav-burger .bars::after { opacity: 0; }
  .nav-links > a { padding: 0.6rem 0.25rem; }
  .nav-drop-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: 0;
    background: transparent;
    padding: 0 0 0 1rem;
    min-width: 0;
  }
  .nav-cta { margin: 0.5rem 0 0; justify-content: center; }
}

/* ---------- Hero -------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(4rem, 10vw, 7.5rem) clamp(3rem, 8vw, 5.5rem);
  overflow: hidden;
  /* faint engineering-paper grid */
  background-image:
    linear-gradient(color-mix(in srgb, var(--line) 55%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--line) 55%, transparent) 1px, transparent 1px);
  background-size: 2.5rem 2.5rem;
}
.hero::before {
  /* soft accent glow, upper right */
  content: "";
  position: absolute;
  inset: -20% -10% auto auto;
  width: 55%;
  height: 80%;
  background: radial-gradient(closest-side,
    color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%);
  pointer-events: none;
}
.hero::after {
  /* fade the grid out at the bottom */
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 8rem;
  background: linear-gradient(transparent, var(--bg));
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--ink-2);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.45em 1em 0.45em 0.5em;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-1);
}
.hero h1 {
  max-width: 24ch;
  margin-bottom: 0.5em;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero-sub {
  font-size: var(--fs-md);
  color: var(--ink-2);
  max-width: 40rem;
  margin-bottom: 1.1rem;
}
.hero-anchor {
  font-size: var(--fs-sm);
  color: var(--ink-3);
  max-width: 40rem;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
}

/* ---------- Diagram ----------------------------------------------------- */
.diagram {
  overflow-x: auto;
  padding: 0.5rem 0;
}
.diagram svg {
  min-width: 40rem;
  margin-inline: auto;
  color: var(--ink);
}
.diagram-caption {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--ink-3);
  text-align: center;
  margin-top: 0.5rem;
}

/* SVG helper classes (inline SVGs pick tokens up via currentColor + these) */
.svg-node { fill: var(--surface); stroke: var(--line-strong); }
.svg-node-accent { fill: var(--accent-soft); stroke: var(--accent); }
.svg-label { fill: var(--ink); font-family: var(--mono); font-weight: 600; }
.svg-note { fill: var(--ink-3); font-family: var(--mono); }
.svg-edge { stroke: var(--ink-3); fill: none; }
.svg-edge-accent { stroke: var(--accent); fill: none; }
.svg-arrowhead { fill: var(--ink-3); }
.svg-arrowhead-accent { fill: var(--accent); }
.svg-boundary { stroke: var(--danger); fill: none; }
.svg-boundary-label { fill: var(--danger); font-family: var(--mono); }

/* ---------- Stats strip (footprint) ------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.stat {
  background: var(--surface);
  padding: 1.4rem 1.25rem;
  text-align: center;
}
.stat-value {
  display: block;
  font-family: var(--mono);
  font-size: var(--fs-xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.stat-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--ink-3);
  margin-top: 0.3rem;
  letter-spacing: 0.04em;
}

/* ---------- CTA band ----------------------------------------------------- */
.cta-band {
  background:
    radial-gradient(120% 160% at 85% -20%,
      color-mix(in srgb, var(--accent) 22%, transparent), transparent 60%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem);
  text-align: center;
  box-shadow: var(--shadow-2);
}
.cta-band h2 { margin-bottom: 0.4em; }
.cta-band p {
  color: var(--ink-2);
  max-width: 38rem;
  margin-inline: auto;
}
.cta-band .hero-actions { justify-content: center; margin-top: 1.75rem; }

/* ---------- Forms -------------------------------------------------------- */
.form { display: flex; flex-direction: column; gap: 1.1rem; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label {
  font-size: var(--fs-sm);
  font-weight: 600;
}
.field .hint {
  font-size: var(--fs-xs);
  color: var(--ink-3);
  margin: 0;
}
input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
select,
textarea {
  font: inherit;
  font-size: var(--fs-sm);
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.65em 0.85em;
  width: 100%;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
textarea { min-height: 8rem; resize: vertical; }
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
input::placeholder,
textarea::placeholder { color: var(--ink-3); }
.form-error {
  font-size: var(--fs-sm);
  color: var(--danger);
  background: var(--danger-soft);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  border-radius: var(--radius-sm);
  padding: 0.6em 0.9em;
  margin: 0;
}
.form-error:empty { display: none; }
.form-success {
  font-size: var(--fs-sm);
  color: var(--ok);
  background: var(--ok-soft);
  border: 1px solid color-mix(in srgb, var(--ok) 35%, transparent);
  border-radius: var(--radius-sm);
  padding: 0.6em 0.9em;
  margin: 0;
}
.form-success:empty { display: none; }

/* honeypot — must be invisible to humans but present in the DOM */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden;
}
.turnstile-slot { min-height: 65px; }

/* ---------- Chat widget -------------------------------------------------- */
.chat {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  max-height: 34rem;
}
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1.1rem;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}
.chat-title {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin: 0;
}
.chat-status {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
}
.chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-height: 12rem;
}
.chat-msg {
  max-width: 85%;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.chat-msg-user {
  align-self: flex-end;
  background: var(--accent);
  color: var(--accent-ink);
  border-bottom-right-radius: 4px;
}
.chat-msg-agent {
  align-self: flex-start;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
}
.chat-msg-system {
  align-self: center;
  background: transparent;
  color: var(--ink-3);
  font-size: var(--fs-xs);
  font-family: var(--mono);
  padding: 0.2rem 0;
}
.chat-typing {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--ink-3);
  padding: 0 0.25rem;
}
.chat-form {
  display: flex;
  gap: 0.6rem;
  padding: 0.8rem 1.1rem;
  border-top: 1px solid var(--line);
}
.chat-form input[type="text"] { flex: 1; }

/* ---------- Footer ------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  margin-top: clamp(3rem, 8vw, 5rem);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 2rem;
}
.footer-brand {
  font-size: var(--fs-sm);
  color: var(--ink-3);
  margin: 0;
}
.footer-brand .brand-name {
  font-size: var(--fs-sm);
  color: var(--ink);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
}
.footer-links a {
  font-size: var(--fs-sm);
  color: var(--ink-2);
  text-decoration: none;
}
.footer-links a:hover { color: var(--accent); }

/* ---------- Prose helpers ------------------------------------------------ */
.checklist { list-style: none; padding-left: 0; }
.checklist li {
  position: relative;
  padding-left: 1.6em;
  margin-bottom: 0.5em;
  font-size: var(--fs-sm);
  color: var(--ink-2);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0.15em;
  top: 0.42em;
  width: 0.55em;
  height: 0.3em;
  border-left: 2px solid var(--ok);
  border-bottom: 2px solid var(--ok);
  transform: rotate(-45deg);
}
.deflist dt {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-top: 0.9rem;
}
.deflist dd {
  margin: 0.2rem 0 0;
  font-size: var(--fs-sm);
  color: var(--ink-2);
}
.footnote {
  font-size: var(--fs-xs);
  color: var(--ink-3);
}

/* ---------- 404 / small pages -------------------------------------------- */
.page-min {
  min-height: 55vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: 4rem;
}
.page-min-code {
  font-family: var(--mono);
  font-size: clamp(3.5rem, 12vw, 6rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0 0 0.5rem;
}

/* Auth card (architect login) */
.auth-wrap {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: 3rem;
}
.auth-card {
  width: 100%;
  max-width: 24rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-2);
}
.auth-card h1 {
  font-size: var(--fs-xl);
  margin-bottom: 0.3em;
}
.auth-card .lede { font-size: var(--fs-sm); margin-bottom: 1.5rem; }

/* ---- Spacing utilities (replace inline style="" attributes, which the
   contract CSP — default-src 'self', no style-src 'unsafe-inline' — blocks) */
.mt-075 { margin-top: 0.75rem; }
.mt-15 { margin-top: 1.5rem; }
.mt-2 { margin-top: 2rem; }
.mt-25 { margin-top: 2.5rem; }
.jc-center { justify-content: center; }