/* ============================================================
   Cascadia.me — Living Watershed supporting surfaces
   Scoped to the guide hub, approach, and 404 pages.
   ============================================================ */

.lw-surface-page {
  --lw-cream-50: #fbf7ee;
  --lw-cream-100: #f2e9d7;
  --lw-ocean-900: #063b5c;
  --lw-ocean-700: #075a78;
  --lw-glacial-500: #2faab3;
  --lw-glacial-text: #1c7880;
  --lw-glacial-on-ocean: #45b6be;
  --lw-camas-600: #65529a;
  --lw-coral-600: #c44737;
  --lw-sun-400: #e8b934;
  --lw-spruce-700: #2f5a43;
  --lw-basalt-900: #232d31;
  --lw-rain-300: #c9d3da;
  --lw-line: #d8cfbc;
  --lw-text: #24343b;
  --lw-muted: #53656b;
  --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --color-stone: var(--lw-ocean-900);
  --color-timber: var(--lw-muted);
  --color-fog: var(--lw-line);
  --color-cloud: var(--lw-cream-100);
  --color-white: var(--lw-cream-50);
  --color-lantern: var(--lw-sun-400);
  --color-lantern-dim: #865c12;
  --color-lantern-glow: #fff0bd;
  --color-water: var(--lw-ocean-700);
  --color-alert: var(--lw-coral-600);
  --color-safe: var(--lw-spruce-700);
  --page-width: 90rem;
  --content-width: 46rem;
  --nav-height: 4.25rem;
  color: var(--lw-text);
  background: var(--lw-cream-50);
}

.lw-surface-page main {
  overflow-x: clip;
}

.lw-surface-page h1,
.lw-surface-page h2,
.lw-surface-page h3,
.lw-surface-page h4 {
  color: var(--lw-ocean-900);
}

.lw-surface-page a:focus-visible,
.lw-surface-page button:focus-visible,
.lw-surface-page summary:focus-visible {
  outline: 3px solid var(--lw-cream-50);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px var(--lw-ocean-900);
}

.surface-skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 2000;
  padding: 0.75rem 1rem;
  color: var(--lw-cream-50);
  background: var(--lw-ocean-900);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 180ms ease-out;
}

.surface-skip-link:focus {
  color: var(--lw-cream-50);
  transform: translateY(0);
}

.surface-container {
  width: min(100% - clamp(2rem, 6vw, 6rem), 90rem);
  margin-inline: auto;
}

.surface-reading {
  width: min(100%, 46rem);
}

.surface-eyebrow {
  margin: 0 0 0.85rem;
  color: var(--lw-spruce-700);
  font-family: var(--font-body);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  line-height: 1.35;
  text-transform: uppercase;
}

.surface-section {
  padding: clamp(5rem, 8vw, 8rem) 0;
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.surface-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(18rem, 0.42fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  align-items: end;
  margin-bottom: clamp(2.75rem, 5vw, 4.5rem);
}

.surface-section-heading .surface-eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -0.25rem;
}

.surface-section-heading h2 {
  max-width: 58rem;
  margin: 0;
  font-size: clamp(3rem, 5.6vw, 5.75rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.94;
}

.surface-section-heading > p:last-child {
  margin: 0 0 0.35rem;
  color: var(--lw-muted);
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  line-height: 1.65;
}

/* Site frame */

.lw-surface-page .site-header {
  background: rgba(251, 247, 238, 0.94);
  border-bottom-color: rgba(6, 59, 92, 0.11);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.lw-surface-page .site-header.scrolled {
  border-bottom-color: rgba(6, 59, 92, 0.18);
  box-shadow: 0 8px 30px rgba(6, 59, 92, 0.07);
}

.lw-surface-page .nav-inner {
  max-width: 90rem;
  gap: 1rem;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

.lw-surface-page .nav-logo {
  color: var(--lw-ocean-900);
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 600;
}

.lw-surface-page .nav-logo span {
  color: inherit;
  font-weight: inherit;
}

.lw-surface-page .nav-logo:hover,
.lw-surface-page .nav-links a:hover,
.lw-surface-page .nav-links a.active {
  color: var(--lw-coral-600);
}

.lw-surface-page .nav-links {
  gap: clamp(1.25rem, 2.7vw, 2.75rem);
}

.lw-surface-page .nav-links a {
  color: var(--lw-text);
  font-size: 0.8rem;
  font-weight: 600;
}

.lw-surface-page .nav-links a.active {
  border-bottom-color: var(--lw-coral-600);
}

.lw-surface-page .nav-toggle {
  width: 2.75rem;
  min-width: 2.75rem;
  height: 2.75rem;
  min-height: 2.75rem;
}

.lw-surface-page .share-button {
  color: var(--lw-ocean-900);
  background: rgba(251, 247, 238, 0.92);
  border-color: rgba(6, 59, 92, 0.16);
  box-shadow: none;
}

.lw-surface-page .share-button:hover {
  color: var(--lw-ocean-900);
  background: var(--lw-cream-100);
  border-color: rgba(6, 59, 92, 0.32);
  box-shadow: none;
}

.lw-surface-page .floating-share-btn {
  display: none;
}

.surface-button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.85rem 1.3rem;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: transform 180ms ease-out, background 180ms ease-out, color 180ms ease-out;
}

.surface-button:hover {
  transform: translateY(-2px);
}

.surface-button-primary {
  color: var(--lw-cream-50);
  background: var(--lw-ocean-900);
}

.surface-button-primary:hover {
  color: var(--lw-cream-50);
  background: var(--lw-ocean-700);
}

.surface-button-secondary {
  color: var(--lw-ocean-900);
  border-color: var(--lw-ocean-900);
  background: rgba(251, 247, 238, 0.82);
}

.surface-button-secondary:hover {
  color: var(--lw-cream-50);
  background: var(--lw-ocean-900);
}

/* Guide orientation hub */

.guide-hub-hero {
  padding: calc(var(--nav-height) + clamp(3.5rem, 7vw, 7rem)) 0 0;
}

.guide-hub-hero-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.42fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 4.5vw, 4rem);
}

.guide-hub-hero h1 {
  max-width: 63rem;
  margin: 0;
  font-size: clamp(4rem, 7vw, 7.2rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.87;
}

.guide-hub-hero-lede {
  margin: 0 0 0.35rem;
  color: var(--lw-muted);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.62;
}

.guide-hub-hero-art {
  width: min(100%, 96rem);
  margin: 0 auto;
  overflow: hidden;
  border-block: 1px solid var(--lw-line);
  background: var(--lw-ocean-900);
}

.guide-hub-hero-art picture,
.guide-hub-hero-art img {
  display: block;
  width: 100%;
}

.guide-hub-hero-art img {
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.guide-hub-domains {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(100%, 96rem);
  margin: 0 auto;
  border-bottom: 1px solid var(--lw-line);
  list-style: none;
}

.guide-hub-domains li {
  position: relative;
  min-height: 7.5rem;
  padding: 1.5rem clamp(1rem, 2vw, 2rem);
  border-right: 1px solid var(--lw-line);
}

.guide-hub-domains li:last-child {
  border-right: 0;
}

.guide-hub-domains span,
.guide-hub-domains strong {
  display: block;
}

.guide-hub-domains strong {
  margin-bottom: 0.4rem;
  color: var(--domain-color, var(--lw-ocean-900));
  font-size: 0.75rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.guide-hub-domains span {
  color: var(--lw-text);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  line-height: 1.2;
}

.guide-hub-domains .domain-land { --domain-color: var(--lw-spruce-700); }
.guide-hub-domains .domain-water { --domain-color: var(--lw-ocean-700); }
.guide-hub-domains .domain-weather { --domain-color: var(--lw-camas-600); }
.guide-hub-domains .domain-fire { --domain-color: var(--lw-coral-600); }

.guide-route-list {
  border-bottom: 1px solid var(--lw-line);
}

.guide-route {
  --route-color: var(--lw-ocean-900);
  display: grid;
  grid-template-columns: 4.5rem minmax(13rem, 0.52fr) minmax(13rem, 0.32fr) minmax(14rem, 0.38fr) 2.5rem;
  gap: clamp(1rem, 2vw, 2.25rem);
  align-items: center;
  min-height: 13rem;
  padding: clamp(2rem, 4vw, 3.5rem) 0;
  border-top: 1px solid var(--lw-line);
  color: var(--lw-text);
  text-decoration: none;
  transition: background 180ms ease-out, color 180ms ease-out;
}

.guide-route:hover {
  color: var(--lw-text);
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--route-color) 7%, transparent));
}

.guide-route-earthquake { --route-color: var(--lw-camas-600); }
.guide-route-wildfire { --route-color: var(--lw-coral-600); }
.guide-route-flooding { --route-color: var(--lw-ocean-700); }
.guide-route-winter { --route-color: var(--lw-glacial-text); }
.guide-route-volcano { --route-color: #985139; }

.guide-route-number {
  color: var(--route-color);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.1em;
}

.guide-route-title span,
.guide-route-signal span,
.guide-route-decision span {
  display: block;
}

.guide-route-domain,
.guide-route-label {
  margin-bottom: 0.55rem;
  color: var(--route-color);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guide-route-title strong {
  display: block;
  color: var(--lw-ocean-900);
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 4vw, 4.25rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 0.95;
}

.guide-route-clock {
  display: block;
  margin-top: 0.7rem;
  color: var(--lw-muted);
  font-size: 0.82rem;
}

.guide-route-signal,
.guide-route-decision {
  color: var(--lw-muted);
  font-size: 0.96rem;
  line-height: 1.55;
}

.guide-route-decision strong {
  color: var(--lw-text);
  font-weight: 650;
}

.guide-route-arrow {
  color: var(--route-color);
  font-size: 2rem;
  transition: transform 180ms ease-out;
}

.guide-route:hover .guide-route-arrow {
  transform: translateX(0.35rem);
}

.guide-system-section {
  color: var(--lw-cream-50);
  background: var(--lw-basalt-900);
}

.guide-system-section h2,
.guide-system-section h3 {
  color: var(--lw-cream-50);
}

.guide-system-section .surface-eyebrow {
  color: var(--lw-glacial-500);
}

.guide-system-section .surface-section-heading > p:last-child {
  color: var(--lw-rain-300);
}

.guide-system-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-block: 1px solid rgba(251, 247, 238, 0.22);
}

.guide-system-grid article {
  min-height: 18rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid rgba(251, 247, 238, 0.22);
}

.guide-system-grid article:last-child {
  border-right: 0;
}

.guide-system-grid h3 {
  margin: 0 0 1rem;
  font-size: clamp(1.8rem, 2.5vw, 2.5rem);
  font-weight: 500;
}

.guide-system-grid p {
  margin: 0;
  color: var(--lw-rain-300);
  line-height: 1.65;
}

.guide-system-mark {
  display: block;
  width: 3.5rem;
  height: 0.35rem;
  margin-bottom: 2.2rem;
  background: var(--system-color);
}

.guide-system-land { --system-color: #79a46f; }
.guide-system-water { --system-color: var(--lw-glacial-500); }
.guide-system-weather { --system-color: #9688c8; }
.guide-system-fire { --system-color: #ee7259; }

.guide-use-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  border-block: 1px solid var(--lw-line);
  list-style: none;
}

.guide-use-steps li {
  min-height: 14rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid var(--lw-line);
}

.guide-use-steps li:last-child {
  border-right: 0;
}

.guide-use-steps span,
.guide-use-steps strong {
  display: block;
}

.guide-use-steps span:first-child {
  margin-bottom: 2rem;
  color: var(--lw-coral-600);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.11em;
}

.guide-use-steps strong {
  margin-bottom: 0.7rem;
  color: var(--lw-ocean-900);
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 500;
}

.guide-use-steps span:last-child {
  color: var(--lw-muted);
  line-height: 1.6;
}

.guide-atlas-bridge {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(15rem, 0.25fr);
  gap: 2rem;
  align-items: center;
  margin-top: clamp(3rem, 5vw, 5rem);
  padding: clamp(2rem, 4vw, 3.5rem);
  color: var(--lw-cream-50);
  background: var(--lw-ocean-900);
}

.guide-atlas-bridge h3 {
  margin: 0 0 0.65rem;
  color: var(--lw-cream-50);
  font-size: clamp(2rem, 3.5vw, 3.3rem);
  font-weight: 500;
}

.guide-atlas-bridge p {
  max-width: 50rem;
  margin: 0;
  color: #dbe8e8;
}

.guide-atlas-bridge .surface-button {
  justify-self: end;
  color: var(--lw-ocean-900);
  background: var(--lw-cream-50);
}

/* Approach / trust */

.approach-trust-hero {
  padding: calc(var(--nav-height) + clamp(3rem, 6vw, 6rem)) 0 clamp(4rem, 7vw, 7rem);
}

.approach-trust-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.42fr) minmax(0, 0.58fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.approach-trust-hero h1 {
  margin: 0;
  font-size: clamp(4rem, 7vw, 7.1rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.88;
}

.approach-trust-lede {
  margin: 1.5rem 0 0;
  color: var(--lw-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.22rem);
  line-height: 1.65;
}

.approach-trust-art {
  position: relative;
  margin: 0;
}

.approach-trust-art::before {
  content: '';
  position: absolute;
  inset: -1rem 1rem 1rem -1rem;
  z-index: -1;
  background: var(--lw-sun-400);
}

.approach-trust-art img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid rgba(6, 59, 92, 0.18);
}

.trust-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-block: 1px solid var(--lw-line);
}

.trust-flow article {
  position: relative;
  min-height: 18rem;
  padding: clamp(1.7rem, 3vw, 2.7rem);
  border-right: 1px solid var(--lw-line);
}

.trust-flow article:last-child {
  border-right: 0;
}

.trust-flow-number {
  display: block;
  margin-bottom: 2.6rem;
  color: var(--flow-color);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.trust-flow article:nth-child(1) { --flow-color: var(--lw-glacial-text); }
.trust-flow article:nth-child(2) { --flow-color: var(--lw-camas-600); }
.trust-flow article:nth-child(3) { --flow-color: var(--lw-coral-600); }

.trust-flow h3 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 500;
}

.trust-flow p {
  margin: 0;
  color: var(--lw-muted);
  line-height: 1.65;
}

.approach-source-section {
  color: var(--lw-cream-50);
  background: var(--lw-ocean-900);
}

.approach-source-section h2,
.approach-source-section h3,
.approach-source-section a {
  color: var(--lw-cream-50);
}

.approach-source-section .surface-eyebrow {
  color: var(--lw-glacial-on-ocean);
}

.approach-source-section .surface-section-heading > p:last-child {
  color: #d5e2e4;
}

.source-ledger {
  border-bottom: 1px solid rgba(251, 247, 238, 0.22);
}

.source-ledger-row {
  display: grid;
  grid-template-columns: minmax(11rem, 0.27fr) minmax(14rem, 0.42fr) minmax(12rem, 0.31fr);
  gap: clamp(1rem, 3vw, 3rem);
  padding: clamp(1.5rem, 2.5vw, 2.2rem) 0;
  border-top: 1px solid rgba(251, 247, 238, 0.22);
}

.source-ledger-row h3 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 500;
}

.source-ledger-row p {
  margin: 0;
  color: #d5e2e4;
  line-height: 1.6;
}

.source-ledger-row strong {
  color: var(--lw-cream-50);
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin-top: 2.5rem;
}

.source-links a {
  border-bottom: 1px solid rgba(251, 247, 238, 0.45);
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
}

.source-links a:hover {
  border-bottom-color: var(--lw-glacial-500);
}

.trust-principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--lw-line);
}

.trust-principle {
  min-height: 23rem;
  padding: clamp(2rem, 4vw, 3.5rem);
  border-right: 1px solid var(--lw-line);
  border-bottom: 1px solid var(--lw-line);
}

.trust-principle:nth-child(2n) {
  border-right: 0;
}

.trust-principle h3 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.trust-principle p {
  color: var(--lw-muted);
  line-height: 1.7;
}

.trust-principle p:last-child {
  margin-bottom: 0;
}

.trust-principle-label {
  margin: 0 0 2.5rem;
  color: var(--principle-color, var(--lw-ocean-700));
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.trust-principle:nth-child(1) { --principle-color: var(--lw-coral-600); }
.trust-principle:nth-child(2) { --principle-color: var(--lw-camas-600); }
.trust-principle:nth-child(3) { --principle-color: var(--lw-spruce-700); }
.trust-principle:nth-child(4) { --principle-color: var(--lw-ocean-700); }

.founder-note {
  display: grid;
  grid-template-columns: minmax(11rem, 0.28fr) minmax(0, 0.72fr);
  gap: clamp(2rem, 6vw, 6rem);
  padding: clamp(2rem, 4vw, 4rem) 0;
  border-block: 1px solid var(--lw-line);
}

.founder-note h2 {
  margin: 0;
  font-size: clamp(2.4rem, 4vw, 4rem);
  font-weight: 500;
  line-height: 0.98;
}

.founder-note p {
  color: var(--lw-muted);
  line-height: 1.72;
}

.founder-note p:first-child {
  margin-top: 0;
}

.project-boundary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  border: 1px solid var(--lw-line);
}

.project-boundary article {
  min-height: 18rem;
  padding: clamp(2rem, 4vw, 3.5rem);
}

.project-boundary article:first-child {
  color: var(--lw-cream-50);
  background: var(--lw-ocean-900);
}

.project-boundary article:last-child {
  background: var(--lw-cream-100);
}

.project-boundary h3 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 500;
}

.project-boundary article:first-child h3 {
  color: var(--lw-cream-50);
}

.project-boundary p {
  margin-bottom: 0;
  line-height: 1.7;
}

.project-boundary article:first-child p {
  color: #d5e2e4;
}

.review-line {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--lw-line);
  color: var(--lw-muted);
  font-size: 0.85rem;
}

/* Lightweight wayfinding */

.not-found-surface {
  min-height: 100vh;
  background:
    radial-gradient(circle at 83% 18%, rgba(47, 170, 179, 0.16), transparent 25rem),
    radial-gradient(circle at 12% 84%, rgba(101, 82, 154, 0.12), transparent 24rem),
    var(--lw-cream-50);
}

.not-found-main {
  position: relative;
  display: grid;
  min-height: calc(100vh - var(--nav-height));
  place-items: center;
  padding: calc(var(--nav-height) + 4rem) 0 5rem;
}

.not-found-main::before,
.not-found-main::after {
  content: '';
  position: absolute;
  z-index: 0;
  width: min(52vw, 42rem);
  height: min(52vw, 42rem);
  border: 1px solid rgba(6, 59, 92, 0.09);
  border-radius: 43% 57% 51% 49%;
  transform: rotate(24deg);
}

.not-found-main::before {
  top: 8%;
  right: -12%;
}

.not-found-main::after {
  bottom: -28%;
  left: -14%;
  transform: rotate(-18deg);
}

.not-found-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(16rem, 0.5fr) minmax(18rem, 0.5fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
}

.not-found-code {
  display: block;
  margin-bottom: 1.2rem;
  color: var(--lw-coral-600);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.not-found-copy h1 {
  margin: 0;
  font-size: clamp(4rem, 8vw, 7.6rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.88;
}

.not-found-copy > p {
  max-width: 34rem;
  margin: 1.6rem 0 0;
  color: var(--lw-muted);
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 1.65;
}

.not-found-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.not-found-routes {
  border-bottom: 1px solid var(--lw-line);
}

.not-found-route {
  display: grid;
  grid-template-columns: 2.4rem 1fr auto;
  gap: 1rem;
  align-items: center;
  min-height: 5.8rem;
  padding: 1rem 0;
  border-top: 1px solid var(--lw-line);
  color: var(--lw-text);
  text-decoration: none;
}

.not-found-route:hover {
  color: var(--lw-coral-600);
}

.not-found-route span:first-child {
  color: var(--lw-muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.not-found-route strong {
  color: inherit;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  font-weight: 500;
}

.not-found-route span:last-child {
  color: var(--lw-coral-600);
  font-size: 1.4rem;
}

.not-found-footer {
  position: relative;
  z-index: 1;
  padding: 1.25rem 0;
  border-top: 1px solid var(--lw-line);
  color: var(--lw-muted);
  font-size: 0.78rem;
}

.not-found-footer .surface-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
}

.not-found-footer a {
  color: var(--lw-ocean-700);
}

/* Footer */

.lw-surface-page .site-footer {
  color: #d7e2df;
  background: var(--lw-basalt-900);
}

.lw-surface-page .footer-brand h3,
.lw-surface-page .footer-col h4 {
  color: var(--lw-cream-50);
}

.lw-surface-page .footer-brand h3 span {
  color: var(--lw-glacial-500);
}

.lw-surface-page .footer-brand p,
.lw-surface-page .footer-bottom {
  color: #aebdbb;
}

.lw-surface-page .footer-col a {
  color: #d7e2df;
}

.lw-surface-page .footer-col a:hover {
  color: var(--lw-glacial-500);
}

@media (max-width: 980px) {
  .guide-hub-hero-heading,
  .surface-section-heading {
    grid-template-columns: 1fr;
  }

  .guide-hub-hero-heading {
    align-items: start;
  }

  .guide-hub-hero-lede,
  .surface-section-heading > p:last-child {
    max-width: 42rem;
  }

  .guide-route {
    grid-template-columns: 3rem minmax(0, 0.48fr) minmax(0, 0.52fr) 2rem;
  }

  .guide-route-signal {
    display: none;
  }

  .guide-system-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .guide-system-grid article:nth-child(2) {
    border-right: 0;
  }

  .guide-system-grid article:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(251, 247, 238, 0.22);
  }

  .approach-trust-layout {
    grid-template-columns: 1fr;
  }

  .approach-trust-copy {
    max-width: 52rem;
  }
}

@media (max-width: 760px) {
  .surface-container {
    width: min(100% - 2rem, 90rem);
  }

  .surface-section {
    padding: 4.5rem 0;
  }

  .lw-surface-page .nav-share-btn {
    width: 2.75rem;
    min-width: 2.75rem;
    height: 2.75rem;
    min-height: 2.75rem;
  }

  .guide-hub-hero {
    padding-top: calc(var(--nav-height) + 3rem);
  }

  .guide-hub-hero h1,
  .approach-trust-hero h1,
  .not-found-copy h1 {
    font-size: clamp(3.6rem, 16vw, 5.2rem);
  }

  .guide-hub-hero-art img {
    aspect-ratio: 4 / 3;
    object-position: center;
  }

  .guide-hub-domains {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .guide-hub-domains li:nth-child(2) {
    border-right: 0;
  }

  .guide-hub-domains li:nth-child(-n + 2) {
    border-bottom: 1px solid var(--lw-line);
  }

  .guide-route {
    grid-template-columns: 2.2rem minmax(0, 1fr) 1.8rem;
    min-height: 0;
    padding: 2.4rem 0;
  }

  .guide-route-decision {
    grid-column: 2;
  }

  .guide-route-arrow {
    grid-column: 3;
    grid-row: 1;
  }

  .guide-route-title strong {
    font-size: clamp(2.4rem, 10vw, 3.5rem);
  }

  .guide-system-grid,
  .guide-use-steps,
  .trust-flow,
  .trust-principles,
  .project-boundary {
    grid-template-columns: 1fr;
  }

  .guide-system-grid article,
  .guide-system-grid article:nth-child(2),
  .guide-use-steps li,
  .trust-flow article,
  .trust-principle,
  .trust-principle:nth-child(2n) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--lw-line);
  }

  .guide-system-grid article,
  .guide-system-grid article:nth-child(2) {
    border-bottom-color: rgba(251, 247, 238, 0.22);
  }

  .guide-system-grid article:last-child,
  .guide-use-steps li:last-child,
  .trust-flow article:last-child {
    border-bottom: 0;
  }

  .guide-atlas-bridge,
  .founder-note,
  .not-found-layout {
    grid-template-columns: 1fr;
  }

  .guide-atlas-bridge .surface-button {
    justify-self: start;
  }

  .approach-trust-hero {
    padding-top: calc(var(--nav-height) + 3rem);
  }

  .approach-trust-art::before {
    inset: -0.6rem 0.6rem 0.6rem -0.6rem;
  }

  .source-ledger-row {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .trust-principle {
    min-height: 0;
  }

  .not-found-main {
    place-items: start;
  }

  .not-found-layout {
    gap: 3.5rem;
  }
}

@media (max-width: 480px) {
  .guide-hub-domains {
    grid-template-columns: 1fr;
  }

  .guide-hub-domains li,
  .guide-hub-domains li:nth-child(2) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--lw-line);
  }

  .guide-hub-domains li:last-child {
    border-bottom: 0;
  }

  .guide-route {
    grid-template-columns: 1.8rem minmax(0, 1fr) 1.4rem;
    gap: 0.75rem;
  }

  .guide-route-number {
    align-self: start;
    padding-top: 0.35rem;
  }

  .not-found-actions .surface-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .surface-skip-link,
  .surface-button,
  .guide-route,
  .guide-route-arrow {
    transition: none;
  }
}

@media print {
  .lw-surface-page .site-header,
  .lw-surface-page .site-footer,
  .surface-button,
  .guide-hub-hero-art,
  .approach-trust-art,
  .not-found-footer {
    display: none !important;
  }

  .lw-surface-page,
  .guide-system-section,
  .approach-source-section {
    color: #111;
    background: #fff;
  }

  .guide-system-section h2,
  .guide-system-section h3,
  .approach-source-section h2,
  .approach-source-section h3,
  .approach-source-section a {
    color: #111;
  }
}