.hero {
  display: flex;
  min-height: calc(100svh - var(--header-height) - 44px);
  align-items: stretch;
  overflow-x: clip;
}

.hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex: 0 0 52%;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  padding: 48px 56px 48px 64px;
  background: var(--color-bg);
}

.hero-copy h1 {
  margin-top: 22px;
}

.hero-title-brand,
.hero-title-key {
  display: block;
}

.hero-title-key {
  margin-top: 6px;
}

.hero-highlight {
  color: var(--color-accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-copy .lede {
  max-width: 540px;
  margin-top: 24px;
  font-size: 18px;
}

.trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 22px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.trust li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.trust li + li {
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid var(--color-border);
}

.trust svg {
  width: 14px;
  height: 14px;
  color: var(--color-text);
}

.hero-kit {
  width: 100%;
  max-width: 600px;
  margin-top: 28px;
  padding: 4px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.kit-row {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 0;
}

.kit-row + .kit-row {
  border-top: 1px solid var(--color-border);
}

.kit-label {
  flex: 0 0 58px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.kit-items {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 22px;
}

.kit-items li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text);
  font-size: 13px;
}

.platform-inline svg {
  width: 16px;
  height: 16px;
  color: var(--color-text);
}

.flag-inline svg {
  width: 22px;
  height: 16px;
  overflow: hidden;
  border-radius: var(--radius-xs);
}

.flag-red {
  fill: var(--color-flag-red);
}

.flag-blue {
  fill: var(--color-flag-blue);
}

.flag-white {
  fill: var(--color-flag-white);
}

.flag-edge {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1;
}

.hero-panel {
  position: relative;
  display: flex;
  flex: 0 0 48%;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-night);
  background-image: radial-gradient(var(--color-dots) 1px, var(--color-transparent) 1.2px);
  background-size: 12px 12px;
  color: var(--color-cream);
}

.hero-panel::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  border-left: 1px dashed var(--color-cream-30);
  content: "";
}

.relay {
  position: relative;
  z-index: 1;
  width: 88%;
  max-width: 640px;
  height: auto;
}

.relay-wire {
  fill: none;
  stroke: var(--color-cream-60);
  stroke-width: 1.2;
}

.relay-ground {
  fill: none;
  stroke: var(--color-cream-30);
  stroke-width: 1;
}

.relay-device {
  fill: var(--color-lilac);
  stroke: var(--color-cream);
  stroke-width: 1;
}

.relay-detail {
  fill: none;
  stroke: var(--color-cream);
  stroke-linecap: round;
  stroke-width: 1.2;
}

.relay-shackle {
  fill: none;
  stroke: var(--color-cream);
  stroke-linecap: round;
  stroke-width: 10;
}

.relay-flow {
  fill: none;
  stroke: var(--color-cream-60);
  stroke-dasharray: 4 5;
  stroke-linecap: round;
  stroke-width: 1.5;
}

.relay-lock {
  fill: var(--color-night-panel);
  stroke: var(--color-cream);
  stroke-width: 2;
}

.relay-keyhole,
.relay-pin {
  fill: var(--color-cream);
}

.relay-pillar {
  fill: var(--color-lilac);
  stroke: var(--color-cream);
  stroke-width: 1;
}

.relay-city {
  fill: var(--color-cream);
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: 0.78;
  text-anchor: middle;
}

.relay-city-mobile {
  display: none;
}

.tab-shell {
  max-width: 100%;
}

.tab-list {
  display: inline-flex;
  max-width: 100%;
  gap: 4px;
  padding: 4px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-muted);
  -webkit-overflow-scrolling: touch;
}

.tab-list [role="tab"] {
  min-width: 92px;
  min-height: 42px;
  padding: 8px 15px;
  border: 1px solid var(--color-transparent);
  border-radius: var(--radius-xs);
  background: var(--color-transparent);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.tab-list [role="tab"][aria-selected="true"],
.tab-list [role="tab"].is-active {
  border-color: var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
}

.tab-panel {
  margin-top: 24px;
}

.tab-panel[hidden] {
  display: none;
}

.toc-tabs {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  max-width: 100%;
  gap: 6px;
  margin-bottom: 40px;
  padding: 6px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  display: inline-flex;
  min-height: 40px;
  flex: 0 0 auto;
  align-items: center;
  padding: 7px 13px;
  border-radius: var(--radius-xs);
  color: var(--color-text-muted);
  font-size: 14px;
  white-space: nowrap;
}

.toc-tabs a:hover,
.toc-tabs a.is-current,
.toc-tabs a[aria-current="location"] {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

body:has(.toc-tabs) section[id] {
  scroll-margin-top: var(--toc-offset);
}

.faq-list {
  border-top: 1px solid var(--color-border);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
  position: relative;
  display: flex;
  min-height: 64px;
  align-items: center;
  padding: 16px 42px 16px 0;
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  right: 8px;
  width: 24px;
  height: 24px;
  color: var(--color-accent-strong);
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 24px;
  text-align: center;
  transition: transform var(--motion-fast) ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-width: 820px;
  padding: 0 42px 22px 0;
  color: var(--color-text-muted);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.pricing-card.is-featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-raised);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  right: 18px;
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-surface);
  font-size: 12px;
  font-weight: 600;
}

.pricing-period {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.pricing-price {
  margin: 16px 0 8px;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 52px);
  line-height: 1;
}

.pricing-price small {
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 15px;
}

.pricing-features {
  display: grid;
  gap: 10px;
  margin: 22px 0 28px;
  padding: 20px 0 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  list-style: none;
}

.pricing-features li {
  position: relative;
  padding-left: 20px;
}

.pricing-features li::before {
  position: absolute;
  left: 0;
  color: var(--color-success);
  content: "✓";
}

.pricing-card .btn {
  width: 100%;
  margin-top: auto;
}

.table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  color: var(--color-text);
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  background: var(--color-surface-muted);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table td:first-child {
  color: var(--color-text);
  font-weight: 600;
}

.prose > .data-table {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.route-group + .route-group {
  margin-top: 34px;
}

.route-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.route-group-title::before {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-round);
  content: "";
}

.status-yes {
  color: var(--color-success);
  font-weight: 600;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.platform-card {
  display: flex;
  min-width: 0;
  align-items: center;
  flex-direction: column;
  padding: 24px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  text-align: center;
  box-shadow: var(--shadow-card);
}

.platform-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  margin-bottom: 14px;
  border-radius: var(--radius-round);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.platform-icon svg {
  width: 24px;
  height: 24px;
}

.platform-card h3 {
  margin-bottom: 16px;
  font-size: 18px;
}

.platform-card .btn {
  width: 100%;
  min-height: 42px;
  margin-top: auto;
  padding-inline: 12px;
  font-size: 14px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.article-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  transition:
    transform var(--motion-fast) ease,
    box-shadow var(--motion-fast) ease;
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-raised);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.article-card h3 {
  font-size: 22px;
}

.article-card p {
  color: var(--color-text-muted);
}

.article-link {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  margin-top: auto;
  padding-top: 12px;
  color: var(--color-accent-strong);
  font-weight: 600;
}

.callout {
  position: relative;
  margin: 28px 0;
  padding: 22px 24px 22px 28px;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
}

.callout-title {
  display: block;
  margin-bottom: 7px;
  color: var(--color-text);
  font-weight: 600;
}

.end-promo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 30px;
  align-items: center;
  margin-top: 64px;
  padding: clamp(28px, 5vw, 52px);
  overflow-x: clip;
  border-radius: var(--radius-sm);
  background-color: var(--color-night);
  background-image: radial-gradient(var(--color-dots) 1px, var(--color-transparent) 1.2px);
  background-size: 12px 12px;
  color: var(--color-cream);
}

.end-promo h2,
.end-promo h3 {
  margin-bottom: 10px;
  color: var(--color-cream);
}

.end-promo p {
  margin: 0;
  color: var(--color-cream-60);
}

.features-browser {
  display: grid;
  grid-template-columns: minmax(190px, 1fr) minmax(0, 3fr);
  gap: 30px;
}

.feature-index {
  position: sticky;
  top: 24px;
  align-self: start;
}

.feature-index a {
  display: flex;
  min-height: 48px;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  color: var(--color-cream-60);
}

.feature-index a::before {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  border: 1px solid var(--color-cream-30);
  border-radius: var(--radius-round);
  content: "";
}

.feature-index a:hover,
.feature-index a.is-current {
  color: var(--color-cream);
}

.feature-index a.is-current::before {
  border-color: var(--color-accent);
  background: var(--color-accent);
  box-shadow: inset 0 0 0 4px var(--color-night);
}

.feature-panels {
  display: grid;
  gap: 18px;
}

.feature-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 22px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--color-cream-12);
  border-radius: var(--radius-sm);
  background: var(--color-night-panel);
}

.feature-emblem {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border-radius: var(--radius-round);
  background: var(--color-accent-soft);
  color: var(--color-cream);
}

.feature-panel:nth-child(even) .feature-emblem {
  background: var(--color-lilac);
}

.feature-emblem svg {
  width: 28px;
  height: 28px;
}

.feature-panel h3 {
  color: var(--color-cream);
}

.feature-panel p {
  color: var(--color-cream-60);
}

.feature-fact {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  margin-top: 10px;
  padding: 4px 10px;
  border: 1px solid var(--color-cream-12);
  border-radius: var(--radius-sm);
  color: var(--color-cream);
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.prose {
  color: var(--color-text);
}

.prose h2 {
  margin-top: 64px;
}

.prose h3 {
  margin-top: 38px;
}

.prose a:not(.btn) {
  color: var(--color-accent-strong);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.prose li + li {
  margin-top: 8px;
}

.prose blockquote {
  margin: 28px 0;
  padding: 18px 24px;
  border-left: 4px solid var(--color-accent);
  background: var(--color-surface-muted);
}

.preview-page {
  background: var(--color-bg);
}

.preview-section {
  padding-top: 88px;
  padding-bottom: 88px;
}

.preview-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.preview-section-head p {
  max-width: 540px;
  margin: 0;
  color: var(--color-text-muted);
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.swatch {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.swatch-color {
  height: 92px;
  border-bottom: 1px solid var(--color-border);
}

.swatch-color-bg {
  background: var(--color-bg);
}

.swatch-color-surface {
  background: var(--color-surface);
}

.swatch-color-muted {
  background: var(--color-surface-muted);
}

.swatch-color-border {
  background: var(--color-border);
}

.swatch-color-accent {
  background: var(--color-accent);
}

.swatch-color-accent-strong {
  background: var(--color-accent-strong);
}

.swatch-color-text {
  background: var(--color-text);
}

.swatch-color-muted-text {
  background: var(--color-text-muted);
}

.swatch-color-success {
  background: var(--color-success);
}

.swatch-color-night {
  background: var(--color-night);
}

.swatch-meta {
  padding: 12px;
}

.swatch-meta strong,
.swatch-meta code {
  display: block;
}

.swatch-meta code {
  margin-top: 3px;
  color: var(--color-text-muted);
  font-size: 11px;
}

.type-specimen {
  display: grid;
  gap: 28px;
}

.type-row {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.type-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.type-display {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 66px);
  font-weight: 400;
  line-height: 1.1;
}

.type-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}

.type-body {
  max-width: 760px;
  color: var(--color-text-muted);
  font-size: 18px;
}

.type-mono {
  font-family: var(--font-mono);
  font-size: 14px;
}

.button-showcase,
.badge-showcase {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.preview-dark {
  background-color: var(--color-night);
  background-image: radial-gradient(var(--color-dots) 1px, var(--color-transparent) 1.2px);
  background-size: 12px 12px;
  color: var(--color-cream);
}

.preview-dark h2,
.preview-dark h3 {
  color: var(--color-cream);
}

.preview-static-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.preview-static-header .header-inner {
  max-width: none;
}

.preview-footer {
  border-top: 1px solid var(--color-cream-12);
  background: var(--color-night);
  color: var(--color-cream);
}

.preview-footer .footer-inner {
  padding-top: 50px;
}

@media (max-width: 1180px) {
  .hero-copy {
    padding: 40px;
  }

  .swatch-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1024px) {
  .platform-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .features-browser {
    grid-template-columns: minmax(0, 1fr);
  }

  .feature-index {
    position: sticky;
    top: 8px;
    z-index: 10;
    display: flex;
    max-width: 100%;
    overflow-x: auto;
    border: 1px solid var(--color-cream-12);
    border-radius: var(--radius-sm);
    background: var(--color-night);
  }

  .feature-index a {
    flex: 0 0 auto;
    white-space: nowrap;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: 0;
    flex-direction: column;
  }

  .hero-copy {
    flex: 0 0 auto;
    padding: 36px var(--gutter) 28px;
  }

  .hero-copy .lede {
    font-size: 16px;
  }

  .hero-panel {
    min-height: 360px;
    flex: 0 0 auto;
    padding: 28px 0;
  }

  .relay {
    width: 92%;
  }

  .relay-city-desktop {
    display: none;
  }

  .relay-city-mobile {
    display: block;
  }

  .kit-label {
    flex-basis: 48px;
  }

  .pricing-grid,
  .article-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .end-promo {
    grid-template-columns: minmax(0, 1fr);
  }

  .preview-section-head {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .feature-panel {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-copy {
    padding-inline: var(--gutter);
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .btn {
    flex: 1 1 150px;
  }

  .trust {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .trust li + li {
    margin-left: 0;
    padding-left: 0;
    border-left: 0;
  }

  .kit-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .platform-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .platform-card {
    align-items: flex-start;
    text-align: left;
  }

  .swatch-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .toc-tabs {
    border-radius: var(--radius-xs);
  }
}