.hero-preview {
  display: flex;
  min-height: calc(100svh - var(--header-height));
  width: 100%;
  align-items: center;
  overflow-x: clip;
}

.hero-wrap {
  width: 100%;
  max-width: calc(var(--content-max) + (var(--gutter) * 2));
  margin-inline: auto;
  padding: 34px var(--gutter) 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: auto auto;
  gap: 14px;
}

.hero-cell {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--transition-medium), border-color var(--transition-fast);
}

.hero-cell:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
}

.hero-main {
  position: relative;
  z-index: 2;
  grid-column: 1 / 8;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--color-bg);
  padding: 46px 46px 40px;
}

.hero-badge {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 6px 15px;
  color: var(--color-text-muted);
  font-size: 12.5px;
  letter-spacing: 0.03em;
}

.hero-badge .badge-dot {
  flex-shrink: 0;
}

.hero-main h1 {
  margin-top: 24px;
  margin-bottom: 18px;
  font-size: clamp(52px, 4.3vw, 58px);
}

.hero-subtitle {
  max-width: 35em;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 15.5px;
  line-height: 1.85;
}

.hero-subtitle strong {
  color: var(--color-text);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin: 30px 0 26px;
}

.hero-actions .btn {
  min-width: 140px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trust-row .chip::before {
  flex: 0 0 auto;
  color: var(--color-success);
  content: "✓";
}

.hero-device {
  position: relative;
  grid-column: 8 / 13;
  grid-row: 1;
  overflow: hidden;
  background: var(--color-panel);
  padding: 20px 22px 16px;
  box-shadow: var(--shadow-panel);
}

.hero-device::before {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgb(38 69 58 / 34%) 0 1px, var(--color-transparent) 1px 26px),
    repeating-linear-gradient(90deg, rgb(38 69 58 / 34%) 0 1px, var(--color-transparent) 1px 26px);
  content: "";
  pointer-events: none;
}

.device-head,
.device-foot {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}

.device-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.device-live::before {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  content: "";
}

.rail-visual {
  position: relative;
  width: 100%;
  height: auto;
}

.rail-idle {
  fill: none;
  stroke: var(--color-border);
  stroke-linecap: round;
  stroke-width: 2;
}

.rail-active {
  fill: none;
  stroke: var(--color-accent-dark);
  stroke-linecap: round;
  stroke-width: 2;
  filter: drop-shadow(0 0 5px var(--color-accent));
}

.rail-glow {
  fill: none;
  opacity: 0.18;
  stroke: var(--color-accent);
  stroke-linecap: round;
  stroke-width: 7;
}

.local-ring {
  fill: var(--color-panel-raised);
  stroke: var(--color-border);
  stroke-width: 1.5;
}

.local-core {
  fill: var(--color-success);
}

.local-pulse {
  fill: none;
  opacity: 0.5;
  stroke: var(--color-success);
  stroke-width: 1;
  transform-box: fill-box;
  transform-origin: center;
  animation: local-pulse 3.2s ease-out infinite;
}

.node-chip {
  fill: var(--color-panel-raised);
  stroke: var(--color-border);
  stroke-width: 1;
}

.node-chip.is-active {
  stroke: var(--color-accent-dark);
}

.node-dot {
  fill: var(--color-text-muted);
}

.node-dot.is-active,
.rail-moving-dot {
  fill: var(--color-accent);
}

.rail-moving-dot {
  filter: drop-shadow(0 0 4px var(--color-accent));
  animation: rail-travel 7s linear infinite;
}

.svg-mono {
  fill: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
}

.svg-mono.is-active {
  fill: var(--color-accent-dark);
}

.svg-name {
  fill: var(--color-text);
  font-family: var(--font-body);
  font-size: 11.5px;
}

.svg-code {
  fill: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
}

.hero-small {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 13px;
  padding: 20px 24px 18px;
}

.hero-small-label {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-platforms {
  grid-column: 1 / 6;
  grid-row: 2;
  background: var(--color-panel);
}

.hero-flags {
  grid-column: 6 / 10;
  grid-row: 2;
  background: var(--color-panel-raised);
}

.hero-refund {
  grid-column: 10 / 13;
  grid-row: 2;
  background: var(--color-panel);
}

.platform-mini-row,
.flag-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.platform-mini,
.flag-item {
  display: flex;
  min-width: 50px;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-size: 11px;
  text-align: center;
}

.platform-mini svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
}

.flag-item svg {
  width: 30px;
  height: 20px;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 0 0 1px var(--color-border);
}

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

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

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

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

.refund-title {
  margin: 0;
  color: var(--color-text);
  font-size: 15.5px;
  font-weight: 600;
}

.refund-copy {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.7;
}

@keyframes rail-travel {
  0% {
    opacity: 0;
    transform: translateX(-146px);
  }
  7%,
  93% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateX(146px);
  }
}

@keyframes local-pulse {
  0% {
    opacity: 0.5;
    transform: scale(1);
  }
  70%,
  100% {
    opacity: 0;
    transform: scale(2.1);
  }
}

.tabs {
  min-width: 0;
}

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

.tab-list [role="tab"] {
  min-width: 88px;
  min-height: 42px;
  flex: 0 0 auto;
  border-radius: var(--radius-xs);
  background: var(--color-transparent);
  padding: 8px 16px;
  color: var(--color-text-muted);
  cursor: pointer;
}

.tab-list [role="tab"][aria-selected="true"] {
  background: var(--color-panel-raised);
  color: var(--color-text);
  box-shadow: inset 0 -2px var(--color-accent);
}

[role="tabpanel"][hidden] {
  display: none;
}

.tab-panel {
  margin-top: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: clamp(22px, 4vw, 36px);
}

.toc-tabs {
  position: sticky;
  top: 12px;
  z-index: 40;
  display: flex;
  width: 100%;
  max-width: 100%;
  gap: 5px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-raised);
  padding: 5px;
  box-shadow: var(--shadow-float);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

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

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

.toc-tabs a.is-current,
.toc-tabs a[aria-current="location"] {
  box-shadow: inset 0 -2px var(--color-accent);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.faq-item summary {
  position: relative;
  min-height: 52px;
  padding: 15px 52px 15px 18px;
  color: var(--color-text);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  top: 50%;
  right: 20px;
  color: var(--color-accent);
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  transform: translateY(-50%);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  border-top: 1px solid var(--color-border);
  padding: 16px 18px 18px;
  color: var(--color-text-muted);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.plan-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: 30px;
  transition: transform var(--transition-medium), border-color var(--transition-fast);
}

.plan-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.plan-card.is-featured {
  border-color: var(--color-accent-dark);
  background: var(--color-panel-raised);
  box-shadow: var(--glow-accent);
}

.plan-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  padding: 4px 9px;
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.plan-name {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 18px;
}

.plan-price strong {
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 400;
  line-height: 1;
}

.plan-price span {
  color: var(--color-text-muted);
  font-size: 13px;
}

.plan-features {
  display: grid;
  gap: 9px;
  margin: 0 0 26px;
  padding: 0;
  color: var(--color-text-muted);
  list-style: none;
}

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

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

.plan-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);
  -webkit-overflow-scrolling: touch;
}

.data-table,
.route-table,
.compare-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  background: var(--color-panel);
  font-size: 14px;
}

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

.data-table th,
.route-table th,
.compare-table th {
  background: var(--color-panel-raised);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

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

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

.route-group-row td {
  background: var(--color-bg);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

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

.platform-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.platform-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: 22px;
}

.platform-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-raised);
  color: var(--color-text-muted);
}

.platform-icon svg {
  width: 22px;
  height: 22px;
}

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

.platform-card p {
  color: var(--color-text-muted);
  font-size: 13px;
}

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

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.article-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border-top: 3px solid var(--color-accent);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  padding: 24px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 16px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.article-card h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
}

.article-card p {
  color: var(--color-text-muted);
  font-size: 14px;
}

.article-card-link {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  margin-top: auto;
  color: var(--color-accent);
  font-size: 13px;
}

.callout {
  position: relative;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-panel);
  padding: 20px 22px;
  color: var(--color-text-muted);
}

.callout strong {
  color: var(--color-text);
}

.promo-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-raised);
  padding: clamp(25px, 5vw, 46px);
  box-shadow: var(--shadow-panel);
}

.promo-brand {
  margin-bottom: 7px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.promo-block h2 {
  margin-bottom: 10px;
  font-size: clamp(29px, 4vw, 42px);
}

.promo-block p {
  margin: 0;
  color: var(--color-text-muted);
}

.float-cta {
  position: fixed;
  right: 26px;
  bottom: calc(26px + env(safe-area-inset-bottom, 0px));
  z-index: 80;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  padding: 10px 20px;
  color: var(--color-accent);
  font-size: 13.5px;
  font-weight: 650;
  box-shadow: var(--shadow-float);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.float-cta:hover {
  background: var(--color-panel);
  transform: translateY(-2px);
}

.float-cta svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

body:has(.float-cta)::after {
  display: block;
  height: calc(88px + env(safe-area-inset-bottom, 0px));
  content: "";
}

.ledger {
  display: grid;
  grid-template-columns: minmax(170px, 0.28fr) minmax(0, 1fr);
  gap: 18px;
}

.ledger-index {
  display: grid;
  align-content: start;
}

.ledger-tab {
  position: relative;
  min-height: 56px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-transparent);
  padding: 12px 12px 12px 28px;
  color: var(--color-text-muted);
  text-align: left;
  cursor: pointer;
}

.ledger-tab::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 3px;
  height: 18px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
  content: "";
  transform: translateY(-50%);
}

.ledger-tab[aria-selected="true"] {
  color: var(--color-text);
}

.ledger-tab[aria-selected="true"]::before {
  background: var(--color-accent);
}

.ledger-number {
  display: block;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.ledger-panel {
  min-height: 280px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: clamp(28px, 5vw, 54px);
}

.preview-shell {
  padding-top: 80px;
  padding-bottom: 80px;
}

.preview-section {
  padding-top: 72px;
  padding-bottom: 72px;
  border-top: 1px solid var(--color-border);
  overflow-x: clip;
}

.preview-heading {
  margin-bottom: 34px;
}

.preview-heading p {
  max-width: 650px;
  color: var(--color-text-muted);
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

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

.swatch-color {
  height: 92px;
}

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

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

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

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

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

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

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

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

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

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

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

.swatch-info {
  padding: 11px;
}

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

.swatch-info code {
  margin-top: 3px;
  border: 0;
  background: var(--color-transparent);
  padding: 0;
  color: var(--color-text-muted);
  font-size: 11px;
}

.type-specimen {
  display: grid;
  gap: 18px;
}

.type-display {
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1.1;
}

.type-body {
  max-width: 720px;
  color: var(--color-text-muted);
  font-size: 18px;
}

.type-mono {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.07em;
}

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

.component-stack {
  display: grid;
  gap: 34px;
}

.preview-footer {
  margin-top: 72px;
}

@media (max-width: 1020px) {
  .platform-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  .hero-preview {
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .hero-main,
  .hero-device,
  .hero-platforms,
  .hero-flags,
  .hero-refund {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .hero-main {
    padding: 34px 26px;
  }

  .hero-main h1 {
    font-size: clamp(28px, 9.4vw, 40px);
  }

  .hero-device {
    padding: 14px 16px;
  }

  .hero-device .svg-mono,
  .hero-device .svg-code,
  .device-foot {
    display: none;
  }

  .platform-mini-row,
  .flag-row {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 16px;
  }

  .plan-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

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

  .ledger {
    grid-template-columns: 1fr;
  }

  .ledger-index {
    display: flex;
    max-width: 100%;
    overflow-x: auto;
  }

  .ledger-tab {
    min-width: 140px;
    flex: 0 0 auto;
  }

  .promo-block {
    grid-template-columns: 1fr;
  }

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

  .float-cta {
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  }
}

@media (max-width: 430px) {
  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .platform-grid,
  .swatch-grid {
    grid-template-columns: 1fr;
  }

  .hero-small {
    padding-inline: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rail-moving-dot {
    opacity: 1;
    transform: none;
  }
}