/* Awesome Psychology Tasks — site styles.
 *
 * Design thesis: the site renders ONE idea — the wall between human review and
 * machine checking. Two axes, two visual languages, never interchangeable:
 *
 *   HUMAN REVIEW    indigo, rounded, a 4-rung ladder that fills as a named
 *                   expert signs. Green (--attested) is RESERVED for the top
 *                   rung and appears NOWHERE else on this site. Today nothing
 *                   has reached it, so the site has no green in it. That
 *                   absence is the honest state of the corpus, drawn.
 *
 *   MACHINE CHECKS  ink, square, monospace. A pass is plain ink, never green —
 *                   an instrumentation guarantee is not praise, and must never
 *                   be mistaken for the human ladder.
 */

/* ── Tokens ────────────────────────────────────────────────────────────── */

:root {
  --ground: #edf0f2;
  --ground-2: #e3e8ea;
  --surface: #fdfdfc;
  --ink: #101a20;
  --ink-2: #55646c;
  --ink-3: #7d8a91;
  --rule: #cdd5d9;
  --rule-strong: #a9b5bb;

  --human: #4a3aa8;
  --human-soft: #ece9f8;
  --attested: #1d7a4c; /* reserved — top rung of the human ladder only */
  --flag: #b33a22;
  --flag-soft: #f8ebe7;

  --font-sans: system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo,
    "Cascadia Mono", "Liberation Mono", monospace;

  --shell: 74rem;
  --gap: clamp(1.5rem, 4vw, 3rem);
  --radius: 3px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0e1418;
    --ground-2: #141c21;
    --surface: #161f24;
    --ink: #e6edf0;
    --ink-2: #9fadb4;
    --ink-3: #77868d;
    --rule: #2a363d;
    --rule-strong: #3d4c54;

    --human: #a396f5;
    --human-soft: #241f47;
    --attested: #4cc487;
    --flag: #ef8168;
    --flag-soft: #3a201a;
  }
}

/* ── Base ──────────────────────────────────────────────────────────────── */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-synthesis-weight: none;
}

h1,
h2,
h3,
h4 {
  letter-spacing: -0.022em;
  line-height: 1.15;
  margin: 0;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2rem, 1.3rem + 3vw, 3.1rem);
  font-weight: 800;
}
h2 {
  font-size: clamp(1.4rem, 1.1rem + 1.2vw, 1.9rem);
  font-weight: 750;
}
h3 {
  font-size: 1.125rem;
  font-weight: 700;
}

p {
  margin: 0 0 1rem;
  max-width: 68ch;
}

a {
  color: inherit;
  text-decoration-color: var(--rule-strong);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-color: currentColor;
}

:focus-visible {
  outline: 2px solid var(--human);
  outline-offset: 3px;
  border-radius: 2px;
}

code,
kbd {
  font-family: var(--font-mono);
  font-size: 0.88em;
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: var(--gap) 0;
}

img {
  max-width: 100%;
  height: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--surface);
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--ink);
}

/* Wide content (tables) must scroll inside itself, never the page. */
.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ── Micro-typography ──────────────────────────────────────────────────── */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 0.6rem;
}

.mono {
  font-family: var(--font-mono);
}

.num {
  font-variant-numeric: tabular-nums;
}

.lede {
  font-size: 1.1875rem;
  color: var(--ink-2);
  max-width: 60ch;
}

h1 + p,
h2 + p,
h1 + .lede {
  margin-top: 0.9rem;
}

.card h3 + p,
.card h2 + p {
  margin-top: 0;
}

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

.small {
  font-size: 0.875rem;
}

/* ── Shell ─────────────────────────────────────────────────────────────── */

.shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--ground);
  position: sticky;
  top: 0;
  z-index: 5;
}

.masthead__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 1.4rem;
  padding-block: 0.9rem;
}

.wordmark {
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.0625rem;
  text-decoration: none;
  margin-right: auto;
}

.wordmark span {
  color: var(--ink-3);
  font-weight: 500;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.nav a {
  text-decoration: none;
  color: var(--ink-2);
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

.nav a:hover {
  color: var(--ink);
}

.nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--human);
}

main {
  padding-block: clamp(2rem, 5vw, 3.75rem) clamp(3rem, 7vw, 5rem);
}

.stack > * + * {
  margin-top: var(--gap);
}

.section-head {
  border-top: 1px solid var(--rule);
  padding-top: 1.25rem;
  margin-bottom: 1.25rem;
}

footer.foot {
  border-top: 1px solid var(--rule);
  background: var(--ground-2);
  padding-block: 2rem 3rem;
  font-size: 0.875rem;
  color: var(--ink-2);
}

.foot__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.foot a {
  color: inherit;
}

/* ── The wall (signature) ──────────────────────────────────────────────── */

.wall {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(1.25rem, 3vw, 2.75rem);
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2.25rem);
}

.wall__rule {
  position: relative;
  width: 1px;
  background: var(--ink);
  justify-self: center;
}

.wall__rule span {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(180deg);
  writing-mode: vertical-rl;
  background: var(--surface);
  padding-block: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}

.wall__side {
  min-width: 0;
}

.wall__figure {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.6rem, 1.5rem + 5vw, 4.25rem);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.04em;
  margin: 0.35rem 0 0.15rem;
}

.wall__figure--human {
  color: var(--human);
}

.wall__figure small {
  font-size: 0.3em;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  font-weight: 500;
}

.wall__caption {
  font-size: 0.9375rem;
  color: var(--ink-2);
  margin: 0.5rem 0 0;
  max-width: 34ch;
}

.wall__note {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--rule);
  font-size: 0.9375rem;
  max-width: none;
}

@media (max-width: 44rem) {
  .wall {
    grid-template-columns: 1fr;
  }
  .wall__rule {
    width: 100%;
    height: 1px;
  }
  .wall__rule span {
    writing-mode: horizontal-tb;
    transform: translate(-50%, -50%);
    padding: 0 0.75rem;
    background: var(--surface);
  }
}

/* ── Badges: two visual languages, deliberately unlike ─────────────────── */

/* HUMAN axis — rounded, indigo, carries a state dot. */
.state {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--human);
  color: var(--human);
  background: var(--human-soft);
  border-radius: 999px;
  padding: 0.1rem 0.6rem 0.1rem 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  white-space: nowrap;
}

.state::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  border: 1px solid currentColor;
  background: transparent;
}

.state--corroborated::before {
  background: currentColor;
  opacity: 0.5;
}

.state--expert-annotated {
  border-color: var(--attested);
  color: var(--attested);
  background: transparent;
}

.state--expert-annotated::before {
  background: currentColor;
}

.state--contested {
  border-color: var(--flag);
  color: var(--flag);
  background: var(--flag-soft);
}

.state--contested::before {
  background: currentColor;
}

/* MACHINE axis — square, ink, monospace. Never green. */
.verdict {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  border-radius: 0;
  padding: 0.05rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  white-space: nowrap;
}

.verdict::before {
  content: "\2713";
  font-weight: 700;
}

.verdict--non-conforming {
  border-color: var(--flag);
  color: var(--flag);
}

.verdict--non-conforming::before {
  content: "\2717";
}

.verdict--none {
  border-style: dashed;
  border-color: var(--rule-strong);
  color: var(--ink-3);
}

.verdict--none::before {
  content: "\2013";
  font-weight: 500;
}

.tag {
  display: inline-block;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 0.05rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-2);
  background: var(--ground-2);
  white-space: nowrap;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

/* ── The ladder (human-review state, drawn as rungs) ───────────────────── */

.ladder {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.ladder li {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 9rem) 1fr;
  align-items: baseline;
  gap: 0.25rem 0.9rem;
  font-size: 0.9375rem;
  color: var(--ink-3);
  padding-block: 0.15rem;
}

.ladder li::before {
  content: "";
  height: 0.375rem;
  align-self: center;
  border-radius: 999px;
  background: var(--rule);
}

.ladder li[data-reached="true"] {
  color: var(--ink);
}

.ladder li[data-reached="true"]::before {
  background: var(--human);
}

.ladder code {
  color: inherit;
  white-space: nowrap;
  justify-self: start;
}

.ladder li[data-current="true"] code {
  box-shadow: inset 0 -0.5em 0 var(--human-soft);
}

@media (max-width: 34rem) {
  .ladder li {
    grid-template-columns: 1.25rem 1fr;
  }
  .ladder li span {
    grid-column: 2;
  }
}

/* ── Cards & grids ─────────────────────────────────────────────────────── */

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.card h3 {
  font-size: 1.0625rem;
}

.card h3 a {
  text-decoration: none;
}

.card h3 a:hover {
  text-decoration: underline;
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--ink-2);
}

.card .wall__figure {
  color: var(--ink);
  font-size: 2rem;
}

.card__foot {
  margin-top: auto;
  padding-top: 0.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-3);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 2.5vw, 1.75rem);
}

.panel--call {
  border-color: var(--human);
  border-left-width: 4px;
}

.callout {
  border-left: 3px solid var(--rule-strong);
  padding-left: 1rem;
  color: var(--ink-2);
  font-size: 0.9375rem;
}

/* ── Tables ────────────────────────────────────────────────────────────── */

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9375rem;
}

th,
td {
  text-align: left;
  padding: 0.55rem 0.9rem 0.55rem 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

thead th {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
  border-bottom-color: var(--rule-strong);
  white-space: nowrap;
}

tbody tr:hover {
  background: var(--ground-2);
}

/* ── Buttons ───────────────────────────────────────────────────────────── */

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  background: transparent;
  color: var(--ink);
}

.btn--primary {
  background: var(--human);
  border-color: var(--human);
  color: #fff;
}

@media (prefers-color-scheme: dark) {
  .btn--primary {
    color: #14101f;
  }
}

.btn:hover {
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .btn:hover {
    transform: none;
  }
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

.btn {
  transition: transform 120ms ease;
}

/* ── Search ────────────────────────────────────────────────────────────── */

.search-form {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.search-input {
  flex: 1 1 20rem;
  font: inherit;
  font-size: 1rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.filters button {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  color: var(--ink-2);
  border-radius: 999px;
  cursor: pointer;
}

.filters button[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--ground);
}

.results {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.6rem;
}

.results li {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 0.75rem 0.95rem;
}

.results h3 {
  font-size: 1rem;
  margin-bottom: 0.15rem;
}

.results .meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-3);
}

.result-kind {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--human);
}

.noscript-note,
.status-line {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-3);
  margin-bottom: 1rem;
}

/* ── Domain index ──────────────────────────────────────────────────────── */

.domain-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
  padding: 0;
  margin: 0 0 var(--gap);
  list-style: none;
}

.domain-jump a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-decoration: none;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
  background: var(--surface);
  color: var(--ink-2);
}

.domain-jump a:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.count {
  font-variant-numeric: tabular-nums;
  color: var(--ink-3);
}

/* ── Definition rows ───────────────────────────────────────────────────── */

.deflist {
  display: grid;
  grid-template-columns: minmax(8rem, 12rem) 1fr;
  gap: 0.55rem 1.25rem;
  margin: 0;
  font-size: 0.9375rem;
}

.deflist dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 0.15rem;
}

.deflist dd {
  margin: 0;
}

@media (max-width: 34rem) {
  .deflist {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
  .deflist dd {
    margin-bottom: 0.75rem;
  }
}

.refs {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
  font-size: 0.9375rem;
}

.refs li {
  padding-left: 1rem;
  border-left: 2px solid var(--rule);
}