/* RefExists — card-catalogue / special-collections aesthetic.
   Palette: ivory paper, iron-gall ink, oxblood stamp red, ledger green, amber.
   Type: Fraunces (scholarly serif, self-hosted) + IBM Plex Mono (evidence). */

@font-face { font-family: 'Fraunces'; src: url('fonts/fraunces-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Fraunces'; src: url('fonts/fraunces-latin-400-italic.woff2') format('woff2'); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: 'Fraunces'; src: url('fonts/fraunces-latin-600-normal.woff2') format('woff2'); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: 'Fraunces'; src: url('fonts/fraunces-latin-900-normal.woff2') format('woff2'); font-weight: 900; font-style: normal; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url('fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url('fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2'); font-weight: 500; font-style: normal; font-display: swap; }

:root {
  --paper: #F5F0E4;
  --paper-deep: #EDE6D4;
  --card: #FBF8EF;
  --ink: #211D17;
  --ink-soft: #5C554A;
  --rule: #D8CFBA;
  --margin-red: #C86A5A;
  --oxblood: #8C2F1B;
  --oxblood-deep: #6E2113;
  --ledger-green: #1D6B3C;
  --amber: #97600A;
  --grey: #6B675E;
  --serif: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, monospace;
  --stamp-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.55' numOctaves='2'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='1.4' intercept='-0.08'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='0.94'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 70% -100px, rgba(140, 47, 27, 0.05), transparent 70%),
    var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
/* paper grain */
body::before {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 3;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23g)'/%3E%3C/svg%3E");
}

a { color: var(--oxblood); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--oxblood-deep); }

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

/* ---------------- masthead ---------------- */

.drawer-label {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-align: center;
  padding: 7px 12px;
}

.masthead-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 22px 24px 18px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 2px solid var(--ink);
}

.wordmark {
  font-weight: 900;
  font-size: 26px;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
}
.wordmark-stamp {
  color: var(--oxblood);
  border: 2.5px solid var(--oxblood);
  border-radius: 4px;
  padding: 0 6px 2px;
  margin-left: 3px;
  display: inline-block;
  transform: rotate(-2deg);
}

.masthead-nav { display: flex; gap: 20px; flex-wrap: wrap; }
.masthead-nav a {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.masthead-nav a:hover { color: var(--oxblood); border-bottom-color: var(--oxblood); }

/* ---------------- hero + input card ---------------- */

main { max-width: 980px; margin: 0 auto; padding: 0 24px 80px; }

.hero { padding-top: 56px; }

h1 {
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  max-width: 15ch;
}
h1 em { font-style: italic; color: var(--oxblood); }

.lede {
  max-width: 62ch;
  font-size: 18.5px;
  margin: 0 0 36px;
  color: #37322A;
}
.lede-registries {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);

}

.card-input-wrap { position: relative; }

.card-input {
  width: 100%;
  min-height: 230px;
  resize: vertical;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--oxblood);
  border-radius: 3px;
  background:
    linear-gradient(to right, transparent 43px, var(--margin-red) 43px, var(--margin-red) 44.5px, transparent 44.5px),
    repeating-linear-gradient(to bottom, var(--card) 0, var(--card) calc(1.7em - 1px), #E7DFC9 calc(1.7em - 1px), #E7DFC9 1.7em),
    var(--card);
  background-attachment: local, local, local;
  padding: 0.35em 20px 16px 58px;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7em;
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(33,29,23,0.08), 0 10px 28px -18px rgba(33,29,23,0.5);
  outline: none;
}
.card-input:focus { border-color: var(--ink); border-top-color: var(--oxblood); box-shadow: 0 0 0 3px rgba(140,47,27,0.14), 0 10px 28px -18px rgba(33,29,23,0.5); }
.card-input::placeholder { color: #9A9282; }

.input-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 18px;
}

.btn-stamp {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 14.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--oxblood);
  border: none;
  border-radius: 4px;
  padding: 13px 26px;
  cursor: pointer;
  box-shadow: 0 2px 0 var(--oxblood-deep), 0 8px 18px -8px rgba(140,47,27,0.7);
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease;
}
.btn-stamp:hover:not(:disabled) { background: var(--oxblood-deep); transform: translateY(-1px); }
.btn-stamp:active:not(:disabled) { transform: translateY(1px); box-shadow: 0 1px 0 var(--oxblood-deep); }
.btn-stamp:disabled { opacity: 0.55; cursor: progress; }
.btn-stamp:focus-visible, .btn-quiet:focus-visible { outline: 3px solid rgba(140,47,27,0.45); outline-offset: 2px; }

.btn-quiet {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  background: none;
  border: 1px dashed var(--ink-soft);
  border-radius: 4px;
  padding: 11px 16px;
  cursor: pointer;
  transition: color 120ms ease, border-color 120ms ease;
}
.btn-quiet:hover { color: var(--oxblood); border-color: var(--oxblood); }

.progress { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); }

/* ---------------- results ---------------- */

.results { margin-top: 56px; }

.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 16px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 13px;
}
.summary .tally { display: inline-flex; align-items: center; gap: 7px; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--rule); background: var(--card); }
.summary .tally b { font-weight: 500; }
.tally-green { color: var(--ledger-green); border-color: rgba(29,107,60,0.4); }
.tally-amber { color: var(--amber); border-color: rgba(151,96,10,0.4); }
.tally-red { color: var(--oxblood); border-color: rgba(140,47,27,0.45); }
.tally-grey { color: var(--grey); }

.cards { list-style: none; margin: 0; padding: 0; }

.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 3px;
  margin: 22px 0;
  padding: 20px 24px 18px 24px;
  box-shadow: 0 1px 0 rgba(33,29,23,0.06), 0 14px 30px -24px rgba(33,29,23,0.55);
  overflow-wrap: anywhere;
}
@media (prefers-reduced-motion: no-preference) {
  .card { animation: card-in 380ms cubic-bezier(0.2, 0.9, 0.3, 1) both; }
  @keyframes card-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
}

.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.card-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
}
.card-cited {
  font-size: 16.5px;
  line-height: 1.5;
  margin: 6px 0 0;
  max-width: 62ch;
}

.stamp {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 6px 12px 5px;
  border: 3px solid currentColor;
  border-radius: 5px;

  transform: rotate(-3.5deg);
  flex-shrink: 0;
  -webkit-mask-image: var(--stamp-mask);
  mask-image: var(--stamp-mask);
  -webkit-mask-size: 190px;
  mask-size: 190px;
}
.stamp-inline { font-size: 12px; padding: 3px 8px 2px; border-width: 2px; transform: rotate(-2deg); display: inline-block; }
.stamp-green { color: var(--ledger-green); background: rgba(29,107,60,0.08); }
.stamp-amber { color: var(--amber); background: rgba(151,96,10,0.08); }
.stamp-red { color: var(--oxblood); background: rgba(140,47,27,0.08); }
.stamp-grey { color: var(--grey); background: rgba(107,103,94,0.08); }
.stamp-outline { background: transparent; }
.stamp-redheavy { color: #FBF8EF; background: var(--oxblood); border-color: var(--oxblood-deep); }

@media (prefers-reduced-motion: no-preference) {
  .card .stamp { animation: stamp-in 300ms cubic-bezier(0.1, 1.4, 0.4, 1) 180ms both; }
  @keyframes stamp-in {
    from { opacity: 0; transform: rotate(-3.5deg) scale(1.7); }
    to { opacity: 1; transform: rotate(-3.5deg) scale(1); }
  }
}

.retraction-banner {
  margin: 14px 0 2px;
  padding: 10px 14px;
  background: var(--oxblood);
  color: #FBF8EF;
  border-radius: 3px;
  font-size: 14.5px;
}
.retraction-banner a { color: #FBF8EF; }

.verdict-line { margin: 12px 0 0; font-size: 14.5px; color: #37322A; max-width: 70ch; }

.evidence {
  margin-top: 14px;
  border-top: 1px dashed var(--rule);
  padding-top: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  display: grid;
  gap: 6px;
}
.evidence-row { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.evidence-key { min-width: 88px; color: var(--grey); letter-spacing: 0.04em; text-transform: uppercase; font-size: 10.5px; }
.evidence-val { flex: 1; min-width: min(200px, 100%); }
.evidence-val a { color: var(--oxblood); }
.evidence-val .ok { color: var(--ledger-green); }
.evidence-val .bad { color: var(--oxblood); }

.compare { display: grid; gap: 4px; margin-top: 10px; }
.compare .cmp {
  font-family: var(--mono); font-size: 12.5px;
  padding: 7px 10px; border-radius: 3px;
}
.cmp-cited { background: rgba(140,47,27,0.07); color: var(--oxblood-deep); }
.cmp-found { background: rgba(29,107,60,0.07); color: var(--ledger-green); }
.cmp b { font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; font-size: 10.5px; margin-right: 8px; }

.checks-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.check-chip {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  background: var(--paper);
}
.check-chip.found { border-color: rgba(29,107,60,0.5); color: var(--ledger-green); }
.check-chip.absent { border-color: rgba(140,47,27,0.5); color: var(--oxblood); }
.check-chip.error { border-style: dashed; }

.results-footnote { font-size: 14px; color: var(--ink-soft); font-style: italic; max-width: 68ch; }

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

.doc { margin-top: 72px; }
.doc h2 {
  font-size: 28px;
  font-weight: 900;
  border-top: 2px solid var(--ink);
  padding-top: 14px;
  margin: 0 0 18px;
}
.doc h2 em { color: var(--oxblood); }

.verdict-legend { margin: 0; display: grid; gap: 13px; }
.verdict-legend > div { display: grid; grid-template-columns: 150px 1fr; gap: 14px; align-items: start; }
.verdict-legend dt { margin: 0; }
.verdict-legend dd { margin: 0; font-size: 15.5px; color: #37322A; max-width: 68ch; }

.limits-list { margin: 0; padding-left: 20px; display: grid; gap: 10px; max-width: 75ch; }
.limits-list li { font-size: 15.5px; color: #37322A; }

#privacy p { max-width: 72ch; font-size: 15.5px; color: #37322A; }

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

.colophon {
  border-top: 2px solid var(--ink);
  background: var(--paper-deep);
}
.colophon p {
  max-width: 980px;
  margin: 0 auto;
  padding: 26px 24px 40px;
  font-size: 13.5px;
  color: var(--ink-soft);
  max-width: 76ch;
}
.wordmark-foot { font-weight: 900; color: var(--ink); }

/* ---------------- responsive ---------------- */

@media (max-width: 640px) {
  body { font-size: 16px; }
  .masthead-inner { flex-direction: column; gap: 8px; align-items: flex-start; padding-bottom: 14px; }
  .hero { padding-top: 36px; }
  .card-head { flex-direction: column-reverse; }
  .card .stamp { align-self: flex-start; }
  .verdict-legend > div { grid-template-columns: 1fr; gap: 6px; }
  .card-input { padding-left: 50px; }
  .evidence-key { min-width: 72px; }
}

/* Very narrow viewports (small phones / split panes): keep the rotated stamps
   from exceeding the frame. */
@media (max-width: 430px) {
  .stamp { font-size: 12.5px; letter-spacing: 0.09em; padding: 4px 9px 3px; max-width: 100%; }
  .cmp, .evidence { overflow-wrap: anywhere; }
}