/* NBC Evidence Folio Contract · F0 · v7.010
   Scope: opt-in only via [data-folio]. Public pages without a folio remain visually unchanged.
   Principle: one light moment maximum; no nested white cards; paper is a semantic document state. */
:root {
  --nbc-folio-paper: #f1eee5;
  --nbc-folio-paper-2: #e7e1d4;
  --nbc-folio-ink: #0b1710;
  --nbc-folio-muted: #4d5a51;
  --nbc-folio-moss: #315f3e;
  --nbc-folio-rule: #cfc8ba;
  --nbc-folio-max: 1180px;
  --nbc-folio-reading: 780px;
  --nbc-folio-pad-x: clamp(20px, 4vw, 72px);
  --nbc-folio-pad-y: clamp(72px, 9vw, 132px);
}

[data-folio] {
  --folio-accent: var(--nbc-folio-moss);
  position: relative;
  isolation: isolate;
  color: var(--nbc-folio-ink);
  background:
    radial-gradient(circle at 18% 12%, rgba(49,95,62,.025) 0 1px, transparent 1.25px) 0 0 / 5px 5px,
    linear-gradient(180deg, rgba(255,255,255,.11), rgba(255,255,255,0) 26%),
    var(--nbc-folio-paper);
  border-block: 1px solid rgba(11,23,16,.12);
  border-radius: 0;
  box-shadow: none;
  overflow: clip;
}

[data-folio] *, [data-folio] *::before, [data-folio] *::after { box-sizing: border-box; }
[data-folio] :where(h1,h2,h3,h4,p,ul,ol,figure,blockquote) { margin-top: 0; }
[data-folio] :where(h1,h2,h3,h4,strong,b) { color: var(--nbc-folio-ink); }
[data-folio] :where(p,li,figcaption,small) { color: var(--nbc-folio-muted); }
[data-folio] a { color: var(--nbc-folio-moss); text-decoration-thickness: 1px; text-underline-offset: .22em; }

.nbc-folio__inner {
  width: min(calc(100% - (2 * var(--nbc-folio-pad-x))), var(--nbc-folio-max));
  margin-inline: auto;
  padding-block: var(--nbc-folio-pad-y);
}
.nbc-folio__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0 0 clamp(38px, 5vw, 68px);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--folio-accent);
}
.nbc-folio__statement {
  max-width: 15ch;
  margin: 0;
  font-family: Archivo, Arial, sans-serif;
  font-size: clamp(44px, 5.7vw, 74px);
  font-weight: 540;
  line-height: .99;
  letter-spacing: -.045em;
  color: var(--nbc-folio-ink);
  text-wrap: balance;
}
.nbc-folio__lead {
  max-width: 62ch;
  margin: 28px 0 0;
  font-size: clamp(17px, 1.35vw, 19px);
  line-height: 1.62;
  color: var(--nbc-folio-muted);
}
.nbc-folio__metric {
  margin: clamp(54px, 7vw, 100px) 0 8px;
  font-family: Archivo, Arial, sans-serif;
  font-size: clamp(70px, 10vw, 126px);
  font-weight: 520;
  line-height: .86;
  letter-spacing: -.06em;
  color: var(--nbc-folio-ink);
  font-variant-numeric: tabular-nums;
}
.nbc-folio__metric-label {
  max-width: 52ch;
  margin: 18px 0 0;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--folio-accent);
}
.nbc-folio__ledger {
  margin-top: clamp(56px, 7vw, 96px);
  border-top: 1px solid var(--nbc-folio-rule);
}
.nbc-folio__row {
  display: grid;
  grid-template-columns: minmax(120px,.65fr) minmax(0,1.6fr);
  gap: 24px 52px;
  align-items: baseline;
  padding: 24px 0 26px;
  border-bottom: 1px solid var(--nbc-folio-rule);
}
.nbc-folio__row > span {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--folio-accent);
}
.nbc-folio__row > :where(strong,p,div) {
  margin: 0;
  font-size: clamp(17px, 1.45vw, 20px);
  line-height: 1.5;
}
.nbc-folio__row > strong { font-weight: 600; }
.nbc-folio__source {
  margin: 28px 0 0;
  max-width: 74ch;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
  line-height: 1.55;
  letter-spacing: .055em;
  text-transform: uppercase;
  color: #667168;
}
.nbc-folio__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 30px;
  font-size: 15px;
  font-weight: 620;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* Type grammar: variation comes from composition, not from new decoration. */
[data-folio="decision"] .nbc-folio__metric,
[data-folio="independence"] .nbc-folio__metric { font-size: clamp(88px, 13vw, 164px); }
[data-folio="research"] .nbc-folio__statement { max-width: 18ch; }
[data-folio="working"] .nbc-folio__statement { max-width: 18ch; }
[data-folio="reading"] .nbc-folio__inner { width: min(calc(100% - (2 * var(--nbc-folio-pad-x))), var(--nbc-folio-reading)); }
[data-folio="reading"] .nbc-folio__statement { max-width: 18ch; font-size: clamp(42px, 5vw, 64px); }
[data-folio="reading"] .nbc-folio__lead { max-width: 68ch; }

.nbc-folio__field {
  display: grid;
  gap: 9px;
  padding: 22px 0;
  border-bottom: 1px solid var(--nbc-folio-rule);
}
.nbc-folio__field label,
.nbc-folio__field > span {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--folio-accent);
}
.nbc-folio__field input,
.nbc-folio__field textarea {
  width: 100%;
  padding: 4px 0 8px;
  border: 0;
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--nbc-folio-ink);
  font: inherit;
  font-size: 17px;
}
.nbc-folio__field textarea { min-height: 84px; resize: vertical; }

/* Governance helpers for the internal styleguide only. */
.folio-showcase-stack { display: grid; gap: clamp(34px, 5vw, 68px); margin-top: 48px; }
.folio-showcase-note { max-width: 78ch; margin: 22px 0 0; color: rgba(238,243,239,.72); }
.folio-showcase-contract {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 1px;
  margin-top: 34px;
  background: rgba(238,243,239,.15);
  border: 1px solid rgba(238,243,239,.15);
}
.folio-showcase-contract > div { padding: 22px; background: #0f1713; }
.folio-showcase-contract span { display:block; margin-bottom:8px; font:600 9px/1.4 "IBM Plex Mono",monospace; letter-spacing:.1em; color:#7ec68e; }
.folio-showcase-contract strong { color:#eef3ef; font-size:15px; line-height:1.4; }

@media (max-width: 760px) {
  :root { --nbc-folio-pad-x: max(20px, env(safe-area-inset-left)); --nbc-folio-pad-y: clamp(62px, 17vw, 88px); }
  .nbc-folio__inner { width: min(calc(100% - 40px), var(--nbc-folio-max)); }
  .nbc-folio__meta { margin-bottom: 34px; }
  .nbc-folio__statement { max-width: none; font-size: clamp(36px, 10.4vw, 43px); line-height: 1.01; letter-spacing: -.04em; text-wrap: pretty; }
  .nbc-folio__metric { margin-top: 50px; font-size: clamp(58px, 17vw, 76px); line-height: .91; letter-spacing: -.055em; }
  [data-folio="decision"] .nbc-folio__metric,
  [data-folio="independence"] .nbc-folio__metric { font-size: clamp(72px, 23vw, 100px); }
  .nbc-folio__ledger { margin-top: 50px; }
  .nbc-folio__row { grid-template-columns: 1fr; gap: 9px; padding: 21px 0 23px; }
  .nbc-folio__row > :where(strong,p,div) { font-size: 17px; line-height: 1.52; }
  .folio-showcase-contract { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  [data-folio] *, [data-folio] *::before, [data-folio] *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; }
}

/* Ownership shield: legacy mobile heading rules use !important in older layers.
   Folio typography must remain authoritative once a page opts in. */
html[data-folio-contract="v7010"] [data-folio] .nbc-folio__statement {
  font-size: clamp(44px, 5.7vw, 74px) !important;
  font-weight: 540 !important;
  line-height: .99 !important;
  letter-spacing: -.045em !important;
  color: var(--nbc-folio-ink) !important;
}
html[data-folio-contract="v7010"] [data-folio] .nbc-folio__metric {
  font-size: clamp(70px, 10vw, 126px) !important;
  font-weight: 520 !important;
  line-height: .86 !important;
  letter-spacing: -.06em !important;
  color: var(--nbc-folio-ink) !important;
}
html[data-folio-contract="v7010"] [data-folio="decision"] .nbc-folio__metric,
html[data-folio-contract="v7010"] [data-folio="independence"] .nbc-folio__metric {
  font-size: clamp(88px, 13vw, 164px) !important;
}
@media (max-width:760px) {
  html[data-folio-contract="v7010"] [data-folio] .nbc-folio__statement {
    font-size: clamp(36px, 10.4vw, 43px) !important;
    line-height: 1.01 !important;
    letter-spacing: -.04em !important;
  }
  html[data-folio-contract="v7010"] [data-folio] .nbc-folio__metric {
    font-size: clamp(58px, 17vw, 76px) !important;
    line-height: .91 !important;
    letter-spacing: -.055em !important;
  }
  html[data-folio-contract="v7010"] [data-folio="decision"] .nbc-folio__metric,
  html[data-folio-contract="v7010"] [data-folio="independence"] .nbc-folio__metric {
    font-size: clamp(72px, 23vw, 100px) !important;
  }
}