/* Public gateway — a field dossier, not another analytics dashboard.
   The paper ground, hard rules, and surveyed route marker extend the Atlas
   language while making the actual product boundary visible before a map. */

.gateway-page {
  --gateway-paper: #f3f6f2;
  --gateway-sheet: #ffffff;
  --gateway-ink: #152a30;
  --gateway-blue: #145b73;
  --gateway-red: #b93a2b;
  --gateway-amber: #e0b33e;
  --gateway-muted: #5e706f;
  --gateway-rule: #aebdb9;
  margin: 0;
  padding: 0;
  background: var(--gateway-paper);
  color: var(--gateway-ink);
}

.gateway-page .skip-link {
  z-index: 10;
}

/* Override the shared document-frame cap from brand.css only for the gateway.
   The other web surfaces intentionally retain their reading-width shell. */
body.gateway-page header.gateway-header,
body.gateway-page main#main,
body.gateway-page footer.gateway-footer {
  max-width: none;
  margin: 0;
}

.gateway-header {
  padding: 0 clamp(1rem, 4vw, 5rem) clamp(3rem, 8vw, 7rem);
  border-block-end: 1px solid var(--gateway-rule);
  background: linear-gradient(112deg, #f3f6f2 0%, #f3f6f2 68%, #dce8eb 68%, #dce8eb 100%);
}

.gateway-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-block-size: 4.75rem;
  border-block-end: 1px solid var(--gateway-rule);
}

.gateway-nav-links a,
.gateway-text-link {
  color: var(--gateway-blue);
  font-weight: 700;
}

.gateway-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: end;
}

.gateway-nav-links a {
  font-size: 0.9rem;
}

.gateway-hero {
  max-width: none;
  padding-block-start: clamp(3.5rem, 9vw, 8rem);
}

.gateway-kicker {
  margin: 0 0 0.75rem;
  color: var(--gateway-blue);
  font: 800 0.74rem/1.25 var(--brand-data);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.gateway-hero h1,
.gateway-page h2,
.gateway-page h3 {
  color: var(--gateway-ink);
  font-family: var(--brand-display);
}

.gateway-hero h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3.1rem, 7vw, 6.8rem);
  font-weight: 760;
  letter-spacing: -0.06em;
  line-height: 0.9;
  text-wrap: balance;
}

.gateway-lede {
  max-width: 50rem;
  margin: 1.7rem 0 0;
  color: var(--gateway-muted);
  font-size: clamp(1.08rem, 1.7vw, 1.35rem);
  line-height: 1.55;
}

.gateway-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block: 1.75rem;
}

.gateway-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 3rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--gateway-ink);
  font-weight: 750;
  text-align: center;
  text-decoration: none;
}

.gateway-action-primary {
  background: var(--gateway-ink);
  color: var(--gateway-sheet);
}

.gateway-action-secondary {
  background: var(--gateway-sheet);
  color: var(--gateway-ink);
}

.gateway-caveat {
  max-width: 55rem;
  margin: 0;
  padding: 0.95rem 1rem;
  border-block: 1px solid #715713;
  background: #f8efcf;
  color: #4f3a08;
}

.gateway-page main {
  padding-inline: clamp(1rem, 4vw, 5rem);
}

.gateway-process,
.gateway-sample,
.gateway-dossier,
.gateway-reference {
  max-width: none;
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
}

.gateway-sample {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 8vw, 7rem);
  border-block-end: 1px solid var(--gateway-rule);
}

.gateway-section-intro {
  max-width: 42rem;
  color: var(--gateway-muted);
  line-height: 1.55;
}

.gateway-dossier-preview {
  align-self: start;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--gateway-ink);
  background: var(--gateway-sheet);
}

.gateway-preview-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  justify-content: space-between;
  padding-block-end: 0.75rem;
  border-block-end: 1px solid var(--gateway-rule);
  color: var(--gateway-blue);
  font: 800 0.7rem/1.3 var(--brand-data);
  letter-spacing: 0.08em;
}

.gateway-dossier-preview h3 {
  max-width: 15ch;
  margin-block: 1.6rem 0.8rem;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.96;
}

.gateway-preview-ask {
  padding: 0.9rem;
  border-block: 1px solid #715713;
  background: #f8efcf;
  color: #4f3a08;
  line-height: 1.5;
}

.gateway-preview-chain {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 1rem 0 0;
  padding: 0;
  border: 1px solid var(--gateway-rule);
  list-style: none;
}

.gateway-preview-chain li {
  min-width: 0;
  padding: 0.75rem;
  border-inline-end: 1px solid var(--gateway-rule);
}

.gateway-preview-chain li:last-child {
  border-inline-end: 0;
}

.gateway-preview-chain span,
.gateway-preview-chain strong {
  display: block;
}

.gateway-preview-chain span {
  color: var(--gateway-blue);
  font: 800 0.68rem/1.2 var(--brand-data);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.gateway-preview-chain strong {
  margin-block-start: 0.4rem;
  font-size: 0.85rem;
  line-height: 1.35;
}

.gateway-process {
  border-block-end: 1px solid var(--gateway-rule);
}

.gateway-section-heading {
  max-width: 48rem;
}

.gateway-page h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.75rem);
  font-weight: 740;
  letter-spacing: -0.045em;
  line-height: 0.98;
  text-wrap: balance;
}

.gateway-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 2.5rem 0 0;
  padding: 1px;
  background: var(--gateway-rule);
  list-style: none;
}

.gateway-steps li {
  min-width: 0;
  padding: 1.35rem;
  background: var(--gateway-sheet);
}

.gateway-step-number,
.gateway-note-label {
  color: var(--gateway-blue);
  font: 800 0.75rem/1 var(--brand-data);
  letter-spacing: 0.08em;
}

.gateway-page h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.gateway-steps p,
.gateway-dossier-grid p,
.gateway-reference p {
  margin: 0;
  color: var(--gateway-muted);
  line-height: 1.55;
}

.gateway-dossier {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(2rem, 8vw, 7rem);
}

.gateway-dossier-grid {
  border-block-start: 1px solid var(--gateway-rule);
}

.gateway-dossier-grid article {
  padding-block: 1.15rem;
  border-block-end: 1px solid var(--gateway-rule);
}

.gateway-dossier-grid h3 {
  margin: 0 0 0.4rem;
}

.gateway-dossier-links {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.2rem;
  margin-block-start: -4rem;
}

.gateway-reference {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.7fr);
  gap: clamp(2rem, 8vw, 7rem);
  border-block-start: 1px solid var(--gateway-rule);
}

.gateway-reference-copy > p:not(.gateway-kicker) {
  max-width: 44rem;
  margin-block: 1.25rem;
}

.gateway-reference-note {
  align-self: start;
  padding: 1.2rem;
  border: 1px solid var(--gateway-ink);
  background: var(--gateway-sheet);
}

.gateway-reference-note p + p {
  margin-block-start: 1rem;
}

.gateway-reference-note strong {
  color: var(--gateway-ink);
}

.gateway-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem clamp(1rem, 4vw, 5rem);
  border-block-start: 0.35rem solid var(--gateway-ink);
  background: var(--gateway-sheet);
  color: var(--gateway-muted);
}

.gateway-footer p {
  margin: 0;
}

.gateway-page .brand-lockup-copy > span {
  white-space: normal;
}

.gateway-page a:focus-visible {
  outline: 3px solid #005fcc;
  outline-offset: 3px;
}

@media (max-width: 52rem) {
  .gateway-header {
    background: var(--gateway-paper);
  }

  .gateway-steps,
  .gateway-sample,
  .gateway-dossier,
  .gateway-reference {
    grid-template-columns: 1fr;
  }

  .gateway-dossier-links {
    grid-column: auto;
    margin-block-start: 0;
  }

  .gateway-nav {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
  }

  .gateway-nav-links {
    justify-content: start;
  }
}

@media (max-width: 40rem) {
  .gateway-preview-chain {
    grid-template-columns: 1fr 1fr;
  }

  .gateway-preview-chain li:nth-child(2) {
    border-inline-end: 0;
  }

  .gateway-preview-chain li:nth-child(-n + 2) {
    border-block-end: 1px solid var(--gateway-rule);
  }
}

@media (prefers-reduced-motion: reduce) {
  .gateway-page .clearance-path {
    animation: none;
    stroke-dashoffset: 0;
  }
}