/* Hallmark · genre: modern-minimal · macrostructure: Long Document · theme: AISEC operator · enrichment: none · pre-emit critique: P5 H4 E5 S5 R5 V4 · nav: N5 · footer: Ft2 · contrast: pass (40–41) · slop: pass (42–49) · mobile: pass (34, 49–57) */
@import url("/tokens.css");

:root { --max: 1180px; }

* { box-sizing: border-box; }

html {
  overflow-x: clip;
  background: var(--color-bg);
  color-scheme: dark;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

button, summary { font: inherit; }

svg { display: block; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: var(--space-md);
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-bg);
  transform: translateY(-160%);
  transition: transform var(--dur-short) var(--ease-out);
}

.skip-link:focus { transform: none; }

.wrap {
  width: min(100% - 48px, var(--max));
  margin-inline: auto;
}

.product-navbar {
  position: sticky;
  z-index: 100;
  top: 0;
  padding-block: var(--space-lg);
  background: color-mix(in oklch, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(16px);
}

.product-nav {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  padding: 7px 9px 7px 18px;
  border: var(--rule-subtle);
  border-radius: 999px;
  background: var(--color-surface-raised);
}

.brand {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: .045em;
}

.brand-mark {
  display: none;
}

.brand-name {
  display: block;
  width: 76px;
  height: 19px;
  background: currentColor;
  font-size: 0;
  line-height: 1;
  -webkit-mask: url("/wordmark.svg") center / contain no-repeat;
  mask: url("/wordmark.svg") center / contain no-repeat;
}

.product-links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.2vw, 28px);
  color: var(--color-muted);
  font-size: 14px;
}

.product-links a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  white-space: nowrap;
  transition: color var(--dur-short) var(--ease-out);
}

.product-links a:hover,
  .product-links a[aria-current="page"] { color: var(--color-ink); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.sign-in {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  color: var(--color-muted);
  font-size: 14px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 18px;
  border: var(--rule-strong);
  border-radius: 999px;
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: transform var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out), background-color var(--dur-short) var(--ease-out);
}

.button:hover { transform: translateY(-1px); border-color: var(--color-muted); }
.button:active { transform: translateY(1px); }

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

.button-primary:hover { background: var(--color-accent-hover); }

.mobile-menu { display: none; position: relative; }

.mobile-menu summary {
  display: grid;
  width: 44px;
  height: 44px;
  cursor: pointer;
  list-style: none;
  place-items: center;
  border: var(--rule-subtle);
  border-radius: 999px;
  color: var(--color-muted);
}

.mobile-menu summary::-webkit-details-marker { display: none; }

.mobile-menu nav {
  position: absolute;
  top: 52px;
  right: 0;
  width: min(280px, calc(100vw - 48px));
  padding: var(--space-sm);
  border: var(--rule-strong);
  border-radius: var(--radius-menu);
  background: var(--color-surface-raised);
  box-shadow: 0 24px 50px var(--color-shadow);
}

.mobile-menu nav a {
  display: flex;
  min-height: 44px;
  align-items: center;
  padding-inline: var(--space-md);
  border-radius: 8px;
  color: var(--color-muted);
}

.mobile-menu nav a:hover,
  .mobile-menu nav a[aria-current="page"] { background: var(--color-surface); color: var(--color-ink); }

.page-hero {
  display: flex;
  min-height: 610px;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-3xl);
  padding-block: clamp(64px, 8vw, 100px) clamp(96px, 10vw, 128px);
  border-bottom: var(--rule-subtle);
}

.cell-label,
.footer-heading {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: .11em;
  line-height: 1.5;
  text-transform: uppercase;
}

.hero-copy { max-width: 860px; }

.hero-copy h1 {
  min-width: 0;
  max-width: 14ch;
  margin: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 600;
  letter-spacing: -.055em;
  line-height: .95;
}

.hero-copy .lede {
  max-width: 64ch;
  margin: var(--space-2xl) 0 0;
  color: var(--color-muted);
  font-size: var(--text-lede);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.hero-visual {
  position: relative;
  min-width: 0;
  margin: 0;
  color: var(--color-ink);
}

.brand-mechanism {
  width: min(100%, 480px);
  min-height: 430px;
  margin-inline: auto;
}

.mechanism-mark {
  position: absolute;
  inset: 0 0 20px 12%;
  background: color-mix(in oklch, var(--color-accent) 20%, transparent);
  -webkit-mask: url("/mark.svg") center / contain no-repeat;
  mask: url("/mark.svg") center / contain no-repeat;
}

.mechanism-receipt {
  position: absolute;
  top: 20%;
  right: 0;
  width: min(76%, 330px);
  margin: 0;
  border-block: var(--rule-strong);
  background: color-mix(in oklch, var(--color-bg) 91%, transparent);
}

.mechanism-receipt div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-xl);
  padding-block: var(--space-md);
  border-bottom: var(--rule-subtle);
}

.mechanism-receipt div:last-child { border-bottom: 0; }
.mechanism-receipt dt { color: var(--color-muted); font-size: 12px; }
.mechanism-receipt dd { margin: 0; color: var(--color-ink); font-family: var(--font-mono); font-size: 10px; letter-spacing: .05em; text-transform: uppercase; }
.mechanism-receipt dd::before { display: inline-block; width: 6px; height: 6px; margin-inline-end: var(--space-sm); border-radius: 50%; background: var(--color-ok); content: ""; }
.brand-mechanism figcaption { position: absolute; right: 0; bottom: 8%; color: var(--color-quiet); font-family: var(--font-mono); font-size: 9px; letter-spacing: .05em; text-transform: uppercase; }

.sentinel-outcomes {
  display: grid;
  width: min(100%, 470px);
  gap: 0;
  margin-inline: auto;
  border-block: var(--rule-strong);
}

.outcome-signal {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding-inline: var(--space-lg);
  border-bottom: var(--rule-subtle);
  background: var(--color-surface-raised);
}

.outcome-signal span {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-warning);
  box-shadow: 0 0 0 7px color-mix(in oklch, var(--color-warning) 11%, transparent);
}

.outcome-signal strong {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
}

.outcome-signal em {
  color: var(--color-warning);
  font-family: var(--font-mono);
  font-size: 9px;
  font-style: normal;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.outcome-path {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  height: 42px;
  padding-inline: var(--space-xl);
}

.outcome-path i {
  position: relative;
  display: block;
  border-inline-start: var(--rule-subtle);
}

.outcome-path i::after {
  position: absolute;
  bottom: -2px;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  content: "";
}

.outcome-row {
  display: grid;
  grid-template-columns: minmax(90px, .65fr) minmax(0, 1.7fr);
  gap: var(--space-md);
  padding: var(--space-lg);
  border-top: var(--rule-subtle);
  background: var(--color-surface);
}

.outcome-row span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.outcome-row b {
  font-size: 12px;
  font-weight: 500;
  line-height: 1.45;
}

.sentinel-outcomes figcaption {
  padding: var(--space-md) var(--space-lg);
  color: var(--color-quiet);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.routing-map {
  display: grid;
  grid-template-columns: minmax(80px, 1fr) 42px minmax(120px, 1.2fr) 42px minmax(80px, 1fr);
  width: min(100%, 500px);
  min-height: 330px;
  align-items: center;
  margin-inline: auto;
}

.route-column { display: grid; gap: var(--space-sm); }
.route-label { margin-bottom: var(--space-sm); color: var(--color-quiet); font-family: var(--font-mono); font-size: 9px; letter-spacing: .07em; text-transform: uppercase; }
.route-column b { padding-block: var(--space-md); border-block: var(--rule-subtle); font-size: 11px; font-weight: 500; }
.route-out { text-align: end; }

.route-wire { display: grid; gap: 31px; }
.route-wire i { position: relative; display: block; height: 1px; background: var(--color-line-strong); }
.route-wire i::after { position: absolute; top: -3px; right: -1px; width: 7px; height: 7px; border-radius: 50%; background: var(--color-accent); content: ""; }
.route-wire-out i::after { right: auto; left: -1px; }

.route-core {
  display: flex;
  min-height: 160px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  border: var(--rule-strong);
  background: var(--color-surface-raised);
  text-align: center;
}

.route-core span { color: var(--color-accent); font-family: var(--font-mono); font-size: 11px; }
.route-core strong { margin-top: var(--space-xs); font-size: 24px; letter-spacing: -.03em; }
.route-core small { margin-top: var(--space-sm); color: var(--color-muted); font-size: 10px; }

.boundary-map {
  width: min(100%, 470px);
  margin-inline: auto;
}

.boundary {
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
  border: var(--rule-strong);
  background: var(--color-surface);
}

.boundary > span { color: var(--color-accent); font-family: var(--font-mono); font-size: 10px; letter-spacing: .06em; text-transform: uppercase; }
.boundary > small { margin: var(--space-xs) 0 var(--space-xl); color: var(--color-muted); font-size: 11px; }
.boundary-project { margin-inline-start: 10%; background: var(--color-surface-raised); }
.boundary-resource { margin-inline-start: 12%; background: var(--color-bg); }
.boundary-resource strong { max-width: 18ch; margin-top: var(--space-sm); font-size: 14px; line-height: 1.35; }
.boundary-map > p { display: flex; align-items: center; gap: var(--space-sm); margin: var(--space-md) 0 0; color: var(--color-muted); font-size: 11px; }
.boundary-map > p span { width: 7px; height: 7px; border-radius: 50%; background: var(--color-ok); }

@media (min-width: 60rem) {
  .page-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr);
    grid-template-rows: auto 1fr;
    column-gap: var(--space-4xl);
    align-items: end;
  }

  .hero-copy { grid-column: 1; }
  .hero-visual { grid-column: 2; grid-row: 1 / span 2; }
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: var(--rule-subtle);
}

.signal-cell {
  min-height: 116px;
  padding: var(--space-xl);
  border-inline-end: var(--rule-subtle);
}

.signal-cell:last-child { border-inline-end: 0; }

.signal-cell .cell-label { color: var(--color-quiet); }

.signal-cell strong {
  display: block;
  margin-top: var(--space-md);
  font-size: 15px;
  font-weight: 500;
}

.content-section {
  display: block;
  padding-block: clamp(72px, 10vw, 128px);
  border-bottom: var(--rule-subtle);
}

.section-body { min-width: 0; }

.section-body > h2 {
  min-width: 0;
  max-width: 18ch;
  margin: 0 0 var(--space-2xl);
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: var(--text-section);
  font-weight: 600;
  letter-spacing: -.045em;
  line-height: 1.02;
}

.section-intro {
  max-width: 68ch;
  margin: 0 0 var(--space-3xl);
  color: var(--color-muted);
  font-size: 18px;
}

.lifecycle {
  display: grid;
  grid-template-columns: repeat(7, minmax(110px, 1fr));
  overflow-x: auto;
  border-block: var(--rule-strong);
  scrollbar-color: var(--color-line-strong) transparent;
}

.lifecycle-step {
  min-height: 190px;
  padding: var(--space-xl) var(--space-lg);
  border-inline-end: var(--rule-subtle);
}

.lifecycle-step:last-child { border-inline-end: 0; }

.lifecycle-step .num {
  display: block;
  margin-bottom: var(--space-3xl);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
}

.lifecycle-step strong { display: block; font-size: 15px; font-weight: 600; }

.lifecycle-step span:last-child {
  display: block;
  margin-top: var(--space-sm);
  color: var(--color-quiet);
  font-size: 13px;
  line-height: 1.45;
}

.ledger { border-top: var(--rule-strong); }

.ledger-row {
  display: grid;
  grid-template-columns: minmax(120px, .7fr) minmax(220px, 1.5fr) minmax(220px, 1.5fr);
  gap: var(--space-xl);
  padding-block: var(--space-xl);
  border-bottom: var(--rule-subtle);
}

.ledger-row h3 { margin: 0; font-size: 17px; font-weight: 600; }

.ledger-row p { margin: 0; color: var(--color-muted); }

.ledger-row .proof { color: var(--color-ink); }

.operator-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-3xl);
}

.operator-column { border-top: var(--rule-strong); }

.operator-column h3 {
  margin: 0;
  padding-block: var(--space-xl);
  border-bottom: var(--rule-subtle);
  font-size: 18px;
}

.operator-column ol,
.operator-column ul { margin: 0; padding: 0; list-style: none; }

.operator-column li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-bottom: var(--rule-subtle);
  color: var(--color-muted);
}

.operator-column li span:first-child {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
}

.flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-block: var(--rule-strong);
}

.flow-column { min-height: 390px; padding: var(--space-xl); border-inline-end: var(--rule-subtle); }
.flow-column:last-child { border-inline-end: 0; }
.flow-column .cell-label { color: var(--color-accent); }
.flow-column h3 { margin: var(--space-3xl) 0 var(--space-xl); font-size: 24px; letter-spacing: -.025em; }
.flow-column ul { margin: 0; padding: 0; list-style: none; }
.flow-column li { padding-block: var(--space-md); border-top: var(--rule-subtle); color: var(--color-muted); }

.truth-table { border-top: var(--rule-strong); }

.truth-row {
  display: grid;
  grid-template-columns: minmax(160px, .8fr) minmax(240px, 1.6fr) minmax(180px, 1fr);
  gap: var(--space-xl);
  padding-block: var(--space-xl);
  border-bottom: var(--rule-subtle);
}

.truth-row h3 { margin: 0; font-size: 17px; }
.truth-row p { margin: 0; color: var(--color-muted); }
.truth-row strong { font-weight: 500; }

.callout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-2xl);
  align-items: end;
  padding-block: clamp(72px, 10vw, 120px);
}

.callout h2 {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(34px, 5vw, 62px);
  letter-spacing: -.045em;
  line-height: 1.02;
}

.callout p { max-width: 55ch; margin: var(--space-xl) 0 0; color: var(--color-muted); }

.product-footer { border-top: var(--rule-subtle); padding-block: var(--space-4xl); }

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-xl) var(--space-3xl);
}

.footer-note { max-width: 34ch; margin: var(--space-lg) 0 0; color: var(--color-quiet); font-size: 13px; }
.footer-heading { display: none; }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-sm) var(--space-lg); }
.footer-links a { width: fit-content; color: var(--color-muted); font-size: 14px; white-space: nowrap; }
.footer-links a:hover { color: var(--color-ink); }

.footer-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: var(--rule-subtle);
  color: var(--color-quiet);
  font-family: var(--font-mono);
  font-size: 11px;
}

@media (max-width: 940px) {
  .product-links { display: none; }
  .mobile-menu { display: block; }
  .nav-actions .sign-in { display: none; }
  .page-hero { min-height: auto; }
  .signal-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .signal-cell:nth-child(2) { border-inline-end: 0; }
  .signal-cell:nth-child(-n + 2) { border-bottom: var(--rule-subtle); }
  .ledger-row, .truth-row { grid-template-columns: minmax(140px, .7fr) minmax(0, 1.7fr); }
  .ledger-row .proof, .truth-row > :last-child { grid-column: 2; }
  .flow { grid-template-columns: 1fr; }
  .flow-column { min-height: auto; border-inline-end: 0; border-bottom: var(--rule-subtle); }
  .flow-column:last-child { border-bottom: 0; }
}

@media (max-width: 680px) {
  .wrap { width: min(100% - 32px, var(--max)); }
  .product-navbar { padding-block: var(--space-md); }
  .product-nav { padding-inline-start: 14px; }
  .nav-actions .button { display: none; }
  .page-hero { padding-block: var(--space-4xl) var(--space-5xl); }
  .hero-copy h1 { font-size: clamp(40px, 14vw, 64px); overflow-wrap: anywhere; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .signal-strip { grid-template-columns: 1fr; }
  .signal-cell { min-height: auto; border-inline-end: 0; border-bottom: var(--rule-subtle); }
  .signal-cell:last-child { border-bottom: 0; }
  .content-section { padding-block: var(--space-4xl); }
  .operator-split { grid-template-columns: 1fr; }
  .ledger-row, .truth-row { grid-template-columns: 1fr; gap: var(--space-md); }
  .ledger-row .proof, .truth-row > :last-child { grid-column: 1; }
  .outcome-signal { flex-wrap: wrap; gap: var(--space-sm) var(--space-md); padding-block: var(--space-md); }
  .outcome-signal strong { min-width: 70%; }
  .callout { grid-template-columns: 1fr; align-items: start; }
  .callout .button { width: 100%; }
  .footer-grid { flex-direction: column; }
  .footer-meta { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}