/* ------------------------------------------------------------------
   naomi.jasonduffett.net — the Native AI Operational Maturity Index.
   Reads as a sibling of the parent site's dark zine (same ink, paper,
   Fraunces/Inter/JetBrains pairing, same paper grain) but with its own
   accent: a cool signal green that ramps warm across the maturity
   levels, so the matrix carries the colour rather than the chrome.
   The web fonts are loaded via <link> in partials/head.njk so the
   browser's preload scanner can fetch them in parallel with this file.
   ------------------------------------------------------------------ */

:root {
  --ink: #0d1113;
  --ink-2: #151b1e;
  --paper: #e8e6df;
  --paper-dim: #b9b6ac;
  --muted: #7e857f;
  --rule: #262d30;
  --accent: #4fd1c5;
  --accent-warm: #ffb454;
  --measure: 40rem;
  --serif: "Fraunces", georgia, serif;
  --ui: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, menlo, monospace;

  /* Level ramp: cool at "ad hoc", warm at "native". Referenced by the
     matrix column headings and the cell rails so a reader can place a
     column at a glance without reading the number. */
  --level-0: #5b6b70;
  --level-1: #4a8f96;
  --level-2: #4fd1c5;
  --level-3: #b7d06a;
  --level-4: #ffb454;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 18px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--ui);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* paper grain — fixed-position noise overlay, matching the parent site */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.92  0 0 0 0 0.89  0 0 0 0 0.83  0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-size: 200px 200px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* layout ------------------------------------------------------------- */

.wrap {
  position: relative;
  z-index: 2;
  max-width: 72rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

@media (width >= 900px) {
  .wrap {
    padding: 3rem 2.5rem 5rem;
  }
}

.page {
  flex: 1 0 auto;
}

/* header ------------------------------------------------------------- */

header.site {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-bottom: 1.25rem;
  margin-bottom: 3rem;
  border-bottom: 1px dashed var(--rule);
}

header.site a.brand {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
}

header.site a.brand .brand-dot {
  color: var(--accent);
  font-size: 1.4em;
  line-height: 0;
}

header.site .brand-expand {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* hero --------------------------------------------------------------- */

.hero {
  max-width: var(--measure);
  margin-bottom: 3.5rem;
}

.kicker {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.hero-title {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(3.5rem, 14vw, 6rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin: 0;
}

.hero-sub {
  font-size: 1.15rem;
  margin: 1.5rem 0 0;
}

.hero-note {
  font-size: 0.95rem;
  color: var(--paper-dim);
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  margin: 1.5rem 0 0;
}

/* draft notice ------------------------------------------------------- */

.notice {
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--paper-dim);
  background: var(--ink-2);
  border: 1px dashed var(--rule);
  border-radius: 0.4rem;
  padding: 0.85rem 1rem;
  margin: 0 0 3rem;
}

.notice strong {
  color: var(--accent-warm);
}

/* sections ----------------------------------------------------------- */

.section {
  margin-bottom: 3.5rem;
}

.section-title {
  font-family: var(--ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

/* matrix ------------------------------------------------------------- */

.matrix-scroll {
  overflow-x: auto;

  /* Keyboard users can scroll the region; give them a visible focus ring. */
  border-radius: 0.4rem;
}

.matrix-scroll:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.matrix {
  width: 100%;
  min-width: 56rem;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.matrix th,
.matrix td {
  vertical-align: top;
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--rule);
}

.matrix-corner {
  font-family: var(--ui);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  width: 15rem;
}

.matrix-level {
  width: 11rem;
  border-top: 3px solid var(--level-0);
}

.matrix-level[data-level="1"] {
  border-top-color: var(--level-1);
}

.matrix-level[data-level="2"] {
  border-top-color: var(--level-2);
}

.matrix-level[data-level="3"] {
  border-top-color: var(--level-3);
}

.matrix-level[data-level="4"] {
  border-top-color: var(--level-4);
}

.level-number {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.level-name {
  display: block;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0.15rem 0 0.35rem;
}

.level-summary {
  display: block;
  font-weight: 400;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--muted);
}

.matrix-dimension {
  background: var(--ink-2);
}

.dimension-name {
  display: block;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1rem;
  color: var(--paper);
}

.dimension-summary {
  display: block;
  font-weight: 400;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--muted);
  margin-top: 0.25rem;
}

.matrix-cell {
  color: var(--paper-dim);
}

.matrix tbody tr:hover .matrix-cell {
  color: var(--paper);
}

/* Below the table's minimum width, reflow each row into a stacked card and
   restore the column heading from `data-level` — the header row is hidden,
   so without this the cells would lose the only thing that places them. */
@media (width < 60rem) {
  .matrix-scroll {
    overflow-x: visible;
  }

  .matrix,
  .matrix tbody,
  .matrix tr,
  .matrix th,
  .matrix td {
    display: block;
    width: auto;
  }

  .matrix {
    min-width: 0;
  }

  .matrix thead {
    display: none;
  }

  .matrix tr {
    border: 1px solid var(--rule);
    border-radius: 0.4rem;
    margin-bottom: 1.25rem;
    overflow: hidden;
  }

  .matrix th,
  .matrix td {
    border-bottom: none;
  }

  .matrix-dimension {
    border-bottom: 1px solid var(--rule);
  }

  .matrix-cell {
    display: flex;
    gap: 0.75rem;
    padding: 0.6rem 0.9rem;
  }

  .matrix-cell::before {
    content: attr(data-level);
    flex: 0 0 8.5rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    line-height: 1.6;
    color: var(--muted);
  }
}

/* download ----------------------------------------------------------- */

.download {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 0.4rem;
  background: var(--ink-2);
  color: var(--paper);
  text-decoration: none;
  max-width: 26rem;
  margin: 0;
}

a.download:hover {
  border-color: var(--accent);
  border-left-color: var(--accent-warm);
}

.download--pending {
  border-left-color: var(--muted);
  color: var(--paper-dim);
}

.download-label {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
}

.download-meta {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

/* notes + links ------------------------------------------------------ */

.notes {
  max-width: var(--measure);
}

.notes p {
  margin: 0 0 1rem;
}

.links {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: var(--measure);
}

.links li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--rule);
}

.links a,
.notes a,
.prose a {
  color: var(--accent);
  text-underline-offset: 0.2em;
  text-decoration-color: var(--rule);
}

.links a:hover,
.notes a:hover,
.prose a:hover {
  text-decoration-color: var(--accent);
}

.link-note {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

/* prose (privacy, 404) ----------------------------------------------- */

.prose {
  max-width: var(--measure);
}

.prose h1 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 2.6rem;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.prose h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.35rem;
  margin: 2.25rem 0 0.5rem;
}

.prose code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--ink-2);
  border-radius: 0.3rem;
  padding: 0.05rem 0.35rem;
}

/* footer ------------------------------------------------------------- */

footer.site {
  flex-shrink: 0;
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--rule);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
}

footer.site a {
  color: var(--muted);
  text-decoration-color: var(--rule);
}

footer.site a:hover {
  color: var(--accent);
}

/* cookie consent banner ---------------------------------------------- */

.consent {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  width: min(34rem, calc(100% - 2rem));
  background: var(--ink-2);
  color: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgb(0 0 0 / 45%);
  padding: 1rem 1.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  z-index: 50;
}

.consent[hidden] {
  display: none;
}

.consent-msg {
  flex: 1 1 16rem;
  margin: 0;
  font-size: 0.85rem;
}

.consent-cta {
  display: block;
  color: var(--muted);
}

.consent-msg a {
  color: var(--accent);
}

.consent-actions {
  display: flex;
  gap: 0.5rem;
  margin-left: auto;
}

.consent-btn {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 0.3rem;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--rule);
  cursor: pointer;
}

.consent-btn--ghost {
  background: transparent;
  color: var(--muted);
}

.consent-btn--ghost:hover {
  color: var(--paper);
}

.consent-btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
}

.consent-btn--primary:hover {
  background: var(--accent-warm);
  border-color: var(--accent-warm);
}