:root {
  color-scheme: dark;
  --site-bg: #040914;
  --site-panel: #091222;
  --site-panel-strong: #0d192c;
  --site-text: #fff4e7;
  --site-muted: #b7becb;
  --site-line: #44516a;
  --site-line-strong: #72809a;
  --site-red: #ff4c39;
  --site-red-strong: #ff6b55;
  --site-red-soft: rgba(255, 76, 57, 0.14);
  --site-sans: Satoshi, Geist, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --site-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

/* Shared consultancy pages */
body:is(.naming-page, .build-page) {
  --paper: var(--site-bg);
  --paper-raised: var(--site-panel);
  --ink: var(--site-text);
  --muted: var(--site-muted);
  --line: var(--site-line);
  --accent: var(--site-red);
  --accent-strong: var(--site-red-strong);
  --on-accent: var(--site-text);
  min-height: 100vh;
  background: var(--site-bg);
  color: var(--site-text);
  font-family: var(--site-sans);
}

body:is(.naming-page, .build-page) .site-header {
  min-height: 82px;
  border-bottom-color: var(--site-line-strong);
}

body:is(.naming-page, .build-page) .brand {
  color: var(--site-red);
  font-family: var(--site-sans);
  font-weight: 800;
  letter-spacing: 0;
}

body:is(.naming-page, .build-page) .brand span {
  color: var(--site-text);
}

body:is(.naming-page, .build-page) .site-nav {
  font-family: var(--site-sans);
  font-size: 0.9rem;
  font-weight: 650;
  text-transform: none;
}

body:is(.naming-page, .build-page) .site-nav a[aria-current="page"] {
  color: var(--site-red);
}

body:is(.naming-page, .build-page) .hero {
  border-bottom-color: var(--site-line-strong);
}

body:is(.naming-page, .build-page) .hero h1 {
  letter-spacing: 0;
}

body:is(.naming-page, .build-page) .hero-line:last-child {
  color: var(--site-red);
}

body:is(.naming-page, .build-page) .hero-visual,
body:is(.naming-page, .build-page) .showcase-image,
body:is(.naming-page, .build-page) .build-case-wide figure,
body:is(.naming-page, .build-page) .build-case-pair figure {
  border-color: var(--site-line-strong);
}

body:is(.naming-page, .build-page) .button {
  border: 1px solid var(--site-red-strong);
  border-radius: 8px;
  background: var(--site-red);
  color: var(--site-text);
  box-shadow: 0 14px 36px -22px rgba(255, 76, 57, 0.9);
}

body:is(.naming-page, .build-page) .button:hover {
  background: var(--site-red-strong);
  color: var(--site-text);
}

body:is(.naming-page, .build-page) :is(
  .proof-card,
  .principle,
  .app-proof figure,
  .app-proof .app-note,
  .homebrew-language,
  .naming-showcase,
  .name-case,
  .engagement-brief,
  .build-case,
  .scale-numbers
) {
  border-color: var(--site-line-strong);
  border-radius: 8px;
  overflow: hidden;
}

body:is(.naming-page, .build-page) .principle:first-child {
  background: var(--site-red);
  color: var(--site-text);
}

body:is(.naming-page, .build-page) .app-proof .app-note,
body:is(.naming-page, .build-page) .scale-numbers {
  background: var(--site-text);
  color: var(--site-bg);
}

body:is(.naming-page, .build-page) .scale-numbers > div + div {
  border-top-color: var(--site-bg);
}

body:is(.naming-page, .build-page) :is(.section, .credibility, .proof-grid, .app-proof) {
  border-bottom-color: var(--site-line-strong);
}

body:is(.naming-page, .build-page) :is(.source-link, .text-link, .case-mode, .eyebrow) {
  color: var(--site-red);
}

/* Shared reference and archive pages */
body.operator-terminal {
  --bg: var(--site-bg);
  --panel: var(--site-panel);
  --panel-strong: var(--site-panel-strong);
  --line: var(--site-line);
  --line-strong: var(--site-line-strong);
  --text: var(--site-text);
  --muted: var(--site-muted);
  --accent: var(--site-red);
  --accent-soft: var(--site-red-soft);
  background: var(--site-bg);
  color: var(--site-text);
  font-family: var(--site-sans);
}

body.operator-terminal .page-shell {
  width: min(1120px, calc(100vw - 2rem));
  padding-top: max(1.5rem, env(safe-area-inset-top));
}

body.operator-terminal .site-header {
  min-height: 58px;
  border-bottom-color: var(--site-line-strong);
}

body.operator-terminal :is(.back-link, .site-nav, .site-footer) {
  font-family: var(--site-sans);
  font-weight: 650;
}

body.operator-terminal .back-link {
  color: var(--site-text);
}

body.operator-terminal .back-link::before {
  content: "\2190";
  margin-right: 0.55rem;
  color: var(--site-red);
}

body.operator-terminal .site-nav {
  color: var(--site-text);
}

body.operator-terminal .hero {
  margin-top: clamp(3.5rem, 8vw, 7rem);
}

body.operator-terminal .hero h1 {
  max-width: 13ch;
  color: var(--site-red);
  font-size: clamp(3.7rem, 8vw, 7rem);
  line-height: 0.9;
  letter-spacing: 0;
}

body.operator-terminal :is(.hero h2, .section-heading h2) {
  color: var(--site-text);
}

body.operator-terminal :is(.eyebrow, .subhead) {
  color: var(--site-red);
}

body.operator-terminal :is(.panel, .diagram, .comparison-table) {
  border-color: var(--site-line);
  border-radius: 8px;
}

body.operator-terminal .answer-panel {
  border-color: var(--site-line-strong);
}

body.operator-terminal .comparison-table {
  overflow: hidden;
}

body.operator-terminal .comparison-table :is(th, td) {
  border-color: var(--site-line);
}

body.operator-terminal :is(.cta-link, .email-link) {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border: 1px solid var(--site-red-strong);
  border-radius: 8px;
  background: var(--site-red);
  color: var(--site-text);
  font-family: var(--site-sans);
  font-weight: 750;
}

body.operator-terminal :is(.cta-link, .email-link):is(:hover, :focus-visible) {
  background: var(--site-red-strong);
  color: var(--site-text);
  text-decoration: none;
}

body.operator-terminal .section-link {
  color: var(--site-red);
}

body.operator-terminal .site-footer {
  border-top-color: var(--site-line-strong);
}

@media (max-width: 720px) {
  body:is(.naming-page, .build-page) .site-header {
    min-height: 0;
  }

  body:is(.naming-page, .build-page) .site-nav {
    flex-wrap: wrap;
    overflow-x: visible;
    white-space: normal;
  }

  body.operator-terminal .page-shell {
    width: 100%;
    padding-inline: max(1rem, env(safe-area-inset-left));
  }

  body.operator-terminal .hero {
    margin-top: 3rem;
  }
}