:root {
  color-scheme: light;
  --bg: #f5f2ec;
  --surface: #fffdf7;
  --ink: #242523;
  --ink-soft: #41433f;
  --muted: #62645f;
  --muted-2: #62645f;
  --line: #d9d6ce;
  --line-strong: #b9bab2;
  --accent: #006f80;
  --cyan: #169eb0;
  --mono: ui-monospace, "SFMono-Regular", Consolas, monospace;
  --category-software: var(--ink-soft);
  --category-experiments: var(--accent);
  --category-fiction: var(--muted);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3,
.brand-name,
.button {
  font-family: inherit;
}

/* Category distinctions stay in labels, not large coloured surfaces. */
.category-software { --category-ink: var(--category-software); }
.category-experiments { --category-ink: var(--category-experiments); }
.category-fiction { --category-ink: var(--category-fiction); }

.eyebrow,
.card-label,
.project-kicker,
.project-status,
.evidence-state,
.index-number,
.note-meta,
.project-summary-card dt,
.capability-card > span,
.workflow-list span {
  font-family: var(--mono);
  font-weight: 500;
}

.site-nav a:hover,
.text-link:hover,
.case-back:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  transform: translateY(-170%);
  padding: 0.7rem 0.95rem;
  border-radius: 6px;
  background: var(--ink);
  color: var(--surface);
  font-weight: 750;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 3rem), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
}

.header-inner {
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.78rem;
  min-width: max-content;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.brand-mark {
  display: block;
  width: 3.2rem;
  height: 3.2rem;
  object-fit: contain;
}

.brand-name {
  font-size: 1.04rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.45rem;
  margin-left: auto;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.eyebrow,
.card-label,
.project-kicker {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.1rem;
  min-height: 49px;
  padding: 0.76rem 1.15rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 780;
  transition: border-color 140ms ease, background-color 140ms ease;
}

.button-primary {
  background: var(--ink);
  color: var(--surface);
}

.button-secondary {
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
}

.button:hover,
.button:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--accent);
}

.section {
  border-top: 1px solid var(--line);
  padding: clamp(3.5rem, 6vw, 5.5rem) 0;
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(290px, 0.68fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: end;
  margin-bottom: 3rem;
}

.section-intro h2,
.section-heading h2 {
  max-width: 16ch;
  margin-bottom: 0;
  font-size: clamp(2.3rem, 4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.052em;
}

.section-summary,
.section-heading p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.evidence-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: start;
}

.section-heading.compact h2 {
  margin-bottom: 1.25rem;
}

.evidence-list {
  display: grid;
  gap: 0;
}

.evidence-list > div {
  display: grid;
  grid-template-columns: minmax(130px, 0.55fr) minmax(0, 1.45fr);
  gap: 1.2rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
}

.evidence-state {
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.06em;
}

.evidence-hot {
  color: var(--accent);
}

.evidence-dim {
  color: var(--muted-2);
}

.evidence-list span:last-child {
  color: var(--muted);
  font-size: 0.93rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  width: fit-content;
  color: var(--accent);
  font-weight: 780;
  text-underline-offset: 4px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.6rem 0;
  background: var(--bg);
  color: var(--muted-2);
  font-size: 0.8rem;
}

.footer-inner {
  flex-wrap: wrap;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink-soft);
  font-weight: 750;
}

.footer-dot {
  width: 0.8rem;
  height: 2px;
  background: var(--cyan);
}

@media (max-width: 980px) {
  .section-intro,
  .evidence-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  html { scroll-padding-top: 9rem; }
  .shell { width: min(calc(100% - 2rem), var(--max)); }
  .header-inner {
    min-height: 64px;
    flex-wrap: wrap;
    gap: 0.65rem;
    padding: 0.65rem 0 0;
  }
  .brand-mark { width: 2.8rem; height: 2.8rem; }
  .site-nav {
    width: 100%;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.4rem 0 0.65rem;
    border-top: 1px solid var(--line);
  }
  .site-nav a { font-size: 0.85rem; padding-block: 0.25rem; }
  .section { padding: 3.5rem 0; }
  .section-intro { gap: 1.4rem; margin-bottom: 2rem; }
  .section-intro h2,
  .section-heading h2 { font-size: clamp(2.15rem, 9vw, 3.25rem); }
  .evidence-grid { gap: 2rem; }
  .evidence-list > div { grid-template-columns: 1fr; gap: 0.35rem; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 0.55rem; }
}

@media (max-width: 460px) {
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}

:is(.category-software, .category-experiments, .category-fiction) :is(.eyebrow, .project-kicker, .project-mark) {
  color: var(--category-ink);
}