/* ==========================================================================
   Aginor design system: "triplicate"
   Carbon-copy forms. Bond white, canary and pink underlays, carbon violet.
   Libre Franklin (pre-printed) / Courier Prime (typed in).
   ========================================================================== */

:root {
  --bond: #FCFBF6;
  --canary: #F2E39B;
  --pink: #EFCEC9;
  --violet: #4A3E8E;
  --ink: #211E29;
  --ink-soft: #38343F;
  --ink-faint: #4D4956;
  --red: #B03A30;
  --rule: #C9C4B4;
  --sheet: #FFFFFF;

  --franklin: 'Libre Franklin', Arial, sans-serif;
  --courier: 'Courier Prime', 'Courier New', monospace;

  --w-page: 1104px;
  --w-prose: 840px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  background: var(--bond);
  scroll-behavior: smooth;
}

body {
  background: var(--bond);
  color: var(--ink);
  font-family: var(--franklin);
  font-size: 16px;
  line-height: 1.6;
  border-top: 4px solid var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: rgba(74, 62, 142, 0.18); }

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

:focus-visible {
  outline: 3px solid var(--violet);
  outline-offset: 2px;
  border-radius: 1px;
}
.btn-primary:focus-visible { outline-color: var(--ink); }

.page {
  max-width: var(--w-page);
  margin: 0 auto;
  padding: 0 28px;
}

/* --------------------------------------------------------------------------
   Nav
   -------------------------------------------------------------------------- */

nav.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding: 20px 0 16px;
  border-bottom: 2px solid var(--ink);
}

.logo {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.18em;
  color: var(--ink);
  text-decoration: none;
}
.logo:hover { color: var(--violet); }

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 26px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
}
.nav-links a:hover { color: var(--violet); text-decoration: underline; text-underline-offset: 3px; }
.nav-links a.current {
  color: var(--violet);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.nav-links a.nav-contact {
  border: 1px solid var(--ink);
  padding: 7px 14px;
  border-radius: 2px;
  font-weight: 600;
  color: var(--ink);
}
.nav-links a.nav-contact:hover { background: var(--ink); color: var(--bond); text-decoration: none; }

/* --------------------------------------------------------------------------
   Section furniture
   -------------------------------------------------------------------------- */

section { padding: 76px 0 0; }

.sect-head {
  border-bottom: 1px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 36px;
}

.sect-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h2.section-title {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.15;
  max-width: 21em;
  margin-bottom: 36px;
}

.section-lede {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 46em;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 2px;
  font-family: var(--franklin);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--ink);
  transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease;
}

.btn-primary {
  background: var(--violet);
  border-color: var(--violet);
  color: var(--bond);
}
.btn-primary:hover { background: var(--ink); border-color: var(--ink); color: var(--bond); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--bond); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero { padding-top: 64px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  align-items: start;
}
.hero-grid > * { min-width: 0; }

@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.14fr 0.86fr; gap: 68px; }
}

.kicker-line {
  font-family: var(--courier);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(34px, 4.2vw, 43px);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.06;
  max-width: 20em;
  margin-bottom: 24px;
}

.hero h1 .h1-alt,
.hero h1 em {
  font-style: normal;
  color: var(--violet);
}

.hero .lede {
  font-size: 17.5px;
  line-height: 1.65;
  max-width: 34em;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.hero-aside {
  font-size: 14px;
  color: var(--ink-faint);
  max-width: 34em;
}

/* --------------------------------------------------------------------------
   The triplicate pack (hero artifact)
   -------------------------------------------------------------------------- */

.pack {
  position: relative;
  margin: 26px 22px 26px 0;
}

.pack::before,
.pack::after {
  content: "";
  position: absolute;
  border: 1px solid var(--rule);
}

.pack::before { /* pink sheet, bottom of the pack */
  background: var(--pink);
  top: 22px; left: 22px; right: -22px; bottom: -22px;
  z-index: 0;
}

.pack::after { /* canary sheet, middle of the pack */
  background: var(--canary);
  top: 11px; left: 11px; right: -11px; bottom: -11px;
  z-index: 1;
}

.sheet {
  position: relative;
  z-index: 2;
  background: var(--sheet);
  border: 1px solid var(--ink);
  padding: 20px 22px 18px;
}

.stamp {
  position: absolute;
  z-index: 3;
  top: -18px;
  right: -4px;
  border: 2.5px solid var(--red);
  color: var(--red);
  background: rgba(252, 251, 246, 0.9);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 7px 13px 6px;
  white-space: nowrap;
}

.artifact-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 16px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 4px;
}

.artifact-head .head-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.artifact-head .head-meta {
  font-family: var(--courier);
  font-size: 12.5px;
  color: var(--ink-faint);
}

.artifact-scroll { overflow-x: auto; }

.sheet table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--courier);
  font-size: 14px;
  white-space: nowrap;
}

.sheet th {
  font-family: var(--franklin);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: left;
  padding: 10px 16px 6px 0;
  border-bottom: 1px solid var(--ink);
}

.sheet td {
  padding: 9px 16px 8px 0;
  border-bottom: 1px solid var(--rule);
}

.sheet th:last-child, .sheet td:last-child { padding-right: 0; }
.sheet .r { text-align: right; }

.artifact-total td {
  border-top: 2px solid var(--ink);
  border-bottom: none;
  font-weight: 700;
  padding-top: 10px;
}

.flagged { color: var(--red); }

.artifact-note {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dotted var(--rule);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-faint);
}

.artifact-flag {
  font-family: var(--courier);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  margin-right: 6px;
  position: relative;
  top: -1px;
}

/* --------------------------------------------------------------------------
   Problem grid
   -------------------------------------------------------------------------- */

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

@media (min-width: 760px) {
  .problem-grid { grid-template-columns: 1fr 1fr; }
}

.problem-card {
  background: var(--bond);
  padding: 26px 28px 30px;
}

.problem-card h3 {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   Ledger exhibit (canary underlay)
   -------------------------------------------------------------------------- */

.ledger {
  background: rgba(242, 227, 155, 0.45);
  border: 1px solid var(--ink);
  padding: 0 40px 36px;
}

.ledger-label {
  font-family: var(--courier);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 -40px 28px;
  padding: 12px 40px 10px;
  border-bottom: 1px solid var(--ink);
}

.ledger-headline {
  font-size: clamp(21px, 2.6vw, 27px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  max-width: 30em;
  margin-bottom: 32px;
}

.ledger-headline em {
  font-style: normal;
  color: var(--violet);
}

.ledger-headline .num {
  font-family: var(--courier);
  font-weight: 700;
}

.num-good { color: var(--violet); }
.num-bad { color: var(--red); }

.ledger-rows { border-top: 1px solid var(--ink); }

.ledger-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(33, 30, 41, 0.25);
  font-size: 14.5px;
}

.ledger-row .fill {
  flex: 1;
  min-width: 24px;
  border-bottom: 1px dotted rgba(33, 30, 41, 0.55);
  transform: translateY(-4px);
}

.ledger-row .val {
  font-family: var(--courier);
  font-size: 13px;
  white-space: nowrap;
}

.ledger-row .val.bad { color: var(--red); font-weight: 700; }
.ledger-row .val a { color: var(--violet); }
.ledger-row .val a:hover { color: var(--ink); }

.ledger-note {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dotted rgba(33, 30, 41, 0.45);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-faint);
}

.ledger-note .flag {
  font-family: var(--courier);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--violet);
  margin-right: 6px;
  position: relative;
  top: -1px;
}

/* --------------------------------------------------------------------------
   Steps
   -------------------------------------------------------------------------- */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 2px solid var(--ink);
  counter-reset: step;
}

@media (min-width: 860px) {
  .steps { grid-template-columns: 1fr 1fr 1fr; }
  .step + .step { border-left: 1px solid var(--rule); padding-left: 28px; }
  .step { padding-right: 28px; }
}

.step { padding-top: 20px; }

@media (max-width: 859px) {
  .step + .step { border-top: 1px solid var(--rule); margin-top: 22px; }
}

.step::before {
  counter-increment: step;
  content: counter(step);
  font-family: var(--courier);
  font-size: 15px;
  font-weight: 700;
  color: var(--violet);
  display: block;
  margin-bottom: 8px;
}

.step h4 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.005em;
  margin-bottom: 10px;
}

.step p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   Pathways as form boxes
   -------------------------------------------------------------------------- */

.pathways {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 980px) {
  .pathways { grid-template-columns: 1fr 1fr 1fr; }
}

.pathway {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  background: var(--bond);
  color: var(--ink);
  text-decoration: none;
  padding: 0 0 22px;
  transition: border-color 140ms ease;
}

.pathway::before {
  content: attr(data-tab);
  display: block;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 9px 20px 8px;
  border-bottom: 1px solid var(--rule);
}

.pathway:hover { border-color: var(--ink); }

.pathway > h3, .pathway > p, .pathway > .doc-list, .pathway > .go { margin-left: 20px; margin-right: 20px; }

.pathway h3 {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.005em;
  margin-top: 18px;
  margin-bottom: 10px;
}

.pathway p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

.doc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 20px;
}

.go {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--violet);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.pathway:hover .go { color: var(--ink); }

/* --------------------------------------------------------------------------
   Tags and stats
   -------------------------------------------------------------------------- */

.vtag {
  font-family: var(--courier);
  font-size: 12px;
  border: 1px solid var(--rule);
  padding: 3px 8px 2px;
  white-space: nowrap;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 22px 0 9px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  max-width: 680px;
  margin: 0 0 28px;
}

.stat {
  background: var(--bond);
  padding: 18px 18px 14px;
}

.stat .n {
  font-family: var(--courier);
  font-size: 30px;
  font-weight: 700;
  display: block;
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat .l {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  line-height: 1.35;
  display: block;
}

/* --------------------------------------------------------------------------
   Proof
   -------------------------------------------------------------------------- */

.proof {
  border: 2px solid var(--ink);
  background: var(--sheet);
  padding: 44px 48px 48px;
}

.proof h2 {
  font-size: clamp(25px, 3.2vw, 33px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.15;
  max-width: 20em;
  margin-bottom: 20px;
}

.proof p {
  font-size: 15.5px;
  line-height: 1.65;
  max-width: 46em;
  margin-bottom: 16px;
  color: var(--ink-soft);
}

.proof-facts {
  font-family: var(--courier);
  font-size: 13.5px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 12px 0;
  margin: 26px 0;
}

.proof-facts .sep { color: var(--rule); }

.proof-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* --------------------------------------------------------------------------
   Founder (pink underlay)
   -------------------------------------------------------------------------- */

.founder {
  border-top: 2px solid var(--ink);
  padding-top: 22px;
  max-width: 720px;
}

.founder-name {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 4px;
}

.founder-meta {
  font-family: var(--courier);
  font-size: 12.5px;
  color: var(--ink-faint);
  margin-bottom: 18px;
}

.founder p {
  font-size: 15.5px;
  line-height: 1.65;
  margin-bottom: 14px;
}

.founder p:last-child { margin-bottom: 0; }
.founder p strong { font-weight: 700; }

/* --------------------------------------------------------------------------
   Bottom CTA
   -------------------------------------------------------------------------- */

.cta-section { padding-top: 84px; }

.cta-block {
  border-top: 1px dashed var(--ink);
  padding: 56px 0 8px;
  text-align: center;
}

.cta-block h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-block > p {
  font-size: 16px;
  line-height: 1.6;
  max-width: 38em;
  margin: 0 auto 28px;
  color: var(--ink-soft);
}

.cta-block .or-line {
  font-size: 14px;
  margin: 22px auto 0;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

footer.site-footer {
  margin-top: 84px;
  border-top: 2px solid var(--ink);
  padding: 24px 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 14px 32px;
  font-size: 13.5px;
}

.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.foot-links a { color: var(--ink); text-decoration: none; }
.foot-links a:hover { color: var(--violet); text-decoration: underline; }

/* ==========================================================================
   Article shell (extraction-test, methodology, loss-runs)
   ========================================================================== */

.article-header {
  padding: 64px 0 8px;
  max-width: var(--w-prose);
  margin: 0 auto;
}

.eyebrow {
  font-family: var(--courier);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 20px;
}

.article-header h1 {
  font-size: clamp(30px, 4.2vw, 42px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.dek {
  font-size: 18.5px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink-soft);
}

.article-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-family: var(--courier);
  font-size: 12px;
  color: var(--ink-faint);
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

/* Prose */
.prose {
  max-width: var(--w-prose);
  margin: 0 auto;
  padding: 28px 0 48px;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.prose > * + * { margin-top: 1.1em; }

.prose h2 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-top: 2.6em;
  margin-bottom: 0.6em;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink);
  scroll-margin-top: 24px;
}

.prose h2:first-child { margin-top: 0; }

.prose h3 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-top: 2em;
  margin-bottom: 0.4em;
}

.prose p { color: var(--ink-soft); }
.prose em { color: var(--ink); font-style: normal; font-weight: 600; }
.prose strong { color: var(--ink); font-weight: 700; }
.prose small { font-size: 13.5px; color: var(--ink-faint); }

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

.prose code {
  font-family: var(--courier);
  font-size: 0.88em;
  background: rgba(242, 227, 155, 0.35);
  color: var(--ink);
  padding: 1px 6px;
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.prose pre {
  font-family: var(--courier);
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
}

.prose pre code { background: transparent; border: none; padding: 0; font-size: inherit; }

.prose blockquote {
  border-left: 3px solid var(--rule);
  padding: 4px 0 4px 20px;
  color: var(--ink-faint);
}

.prose ul, .prose ol { padding-left: 1.4em; color: var(--ink-soft); }
.prose li + li { margin-top: 0.35em; }
.prose hr { border: none; border-top: 1px dashed var(--ink); margin: 2.5em 0; }

/* TOC (methodology) */
.prose .toc {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  padding: 12px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  font-family: var(--courier);
  font-size: 13px;
}

.prose .toc-label {
  font-family: var(--franklin);
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  margin-right: 4px;
}

.prose .toc a { color: var(--violet); text-decoration: none; }
.prose .toc a:hover { color: var(--ink); text-decoration: underline; }

/* Data tables */
.table-wrap {
  margin: 1.6em 0;
  border: 1px solid var(--ink);
  background: var(--sheet);
}

.table-caption {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bond);
  padding: 11px 18px 10px;
  background: var(--ink);
}

.table-scroll { overflow-x: auto; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

table.data th,
table.data td {
  padding: 11px 16px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
}

table.data td { white-space: nowrap; }
table.data tbody tr:last-child td { border-bottom: none; }

table.data th {
  font-family: var(--franklin);
  font-weight: 700;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: rgba(242, 227, 155, 0.35);
  border-bottom: 1px solid var(--ink);
}

table.data td {
  font-family: var(--courier);
  color: var(--ink-soft);
}

table.data td:first-child { color: var(--ink); font-weight: 700; }

table.data td .hl { color: var(--red); font-weight: 700; }
table.data td .ok { color: var(--violet); font-weight: 700; }

/* Figures */
.hero-figure {
  margin: 2em 0;
  border: 1px solid var(--ink);
  background: var(--sheet);
}

.hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--rule);
}

.hero-figure figcaption {
  padding: 13px 18px;
  font-family: var(--courier);
  font-size: 12.5px;
  color: var(--ink-faint);
  line-height: 1.55;
}

/* Companion note */
.companion-note {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
  padding: 14px 20px;
  border: 1px solid var(--rule);
  background: var(--sheet);
  margin-bottom: 2em;
}

.companion-note strong { color: var(--ink); font-weight: 700; }

/* Reproduce box */
.reproduce-box {
  margin: 2em 0;
  padding: 24px 28px;
  background: rgba(242, 227, 155, 0.3);
  border: 1px solid var(--rule);
}

.reproduce-box h3 {
  font-family: var(--courier);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 10px;
  color: var(--ink);
}

.reproduce-box p { font-size: 14px; color: var(--ink-soft); line-height: 1.65; margin: 0 0 8px; }
.reproduce-box ul { margin: 8px 0 0 0; padding-left: 1.4em; font-size: 13px; line-height: 1.7; }

/* Definition tooltips (methodology) */
.def {
  position: relative;
  border-bottom: 1px dashed var(--ink-faint);
  cursor: help;
  outline: none;
}

.def:hover { border-bottom-color: var(--violet); }

.def-tip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  width: 380px;
  max-width: min(90vw, 380px);
  background: var(--ink);
  padding: 14px 16px;
  font-family: var(--courier);
  font-size: 12.5px;
  font-style: normal;
  font-weight: 400;
  line-height: 1.6;
  color: var(--bond);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: 20;
  white-space: normal;
  text-align: left;
  box-shadow: 0 8px 24px rgba(33, 30, 41, 0.25);
}

.def-tip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--ink);
}

.def-tip code {
  font-size: 0.92em;
  background: rgba(252, 251, 246, 0.14);
  border: none;
  padding: 1px 5px;
  color: var(--bond);
}

.def-tip-p { display: block; }
.def-tip-p + .def-tip-p { margin-top: 0.55em; }

.def:hover .def-tip,
.def:focus .def-tip,
.def:focus-within .def-tip { opacity: 1; pointer-events: auto; }

/* Post CTA (article pages) */
.post-cta {
  margin: 48px auto 0;
  max-width: var(--w-prose);
  text-align: center;
  padding: 48px 32px 8px;
  border-top: 1px dashed var(--ink);
}

.post-cta h2 {
  font-size: clamp(25px, 3.2vw, 33px);
  font-weight: 900;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
  color: var(--ink);
}

.post-cta p {
  color: var(--ink-soft);
  font-size: 15px;
  margin-bottom: 28px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 560px) {
  .page { padding: 0 18px; }
  section { padding-top: 56px; }
  .hero { padding-top: 40px; }
  .cta-section { padding-top: 64px; }

  .pack { margin: 26px 14px 24px 0; }
  .pack::before { top: 16px; left: 16px; right: -16px; bottom: -16px; }
  .pack::after { top: 8px; left: 8px; right: -8px; bottom: -8px; }
  .stamp { right: 0; font-size: 11.5px; letter-spacing: 0.1em; }
  .sheet { padding: 16px 16px 14px; }
  .sheet table { font-size: 12px; }
  .sheet th, .sheet td { padding-right: 8px; }
  .sheet th:last-child, .sheet td:last-child { padding-right: 0; }

  .ledger { padding: 0 20px 26px; }
  .ledger-label { margin: 0 -20px 22px; padding: 11px 20px 9px; }
  .proof { padding: 28px 22px 32px; }
  .founder { padding-top: 18px; }
  .problem-card { padding: 22px 20px 26px; }

  nav.site-nav { padding: 16px 0 14px; }
  .nav-links { gap: 6px 18px; }

  .ledger-row { display: block; }
  .ledger-row .fill { display: none; }
  .ledger-row .val { display: block; text-align: right; margin-top: 3px; }

  .stat-row { grid-template-columns: 1fr; max-width: none; }
  .stat { padding: 14px 16px 12px; }

  .article-header { padding-top: 44px; }
  .prose { font-size: 15.5px; }
  .prose h2 { font-size: 21px; }
  .def-tip { width: 280px; font-size: 12px; }
  .table-wrap, .hero-figure { margin-left: -18px; margin-right: -18px; border-left: none; border-right: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}