:root {
  --table-min-width: 720px;
  --hero-route-width: 1020px;
  --badge-bg: rgba(27, 32, 80, 0.72);
  --accent-wash: rgba(138, 215, 255, 0.08);
  --success-wash: rgba(95, 217, 166, 0.1);
  --warning-wash: rgba(245, 194, 102, 0.12);
  --error-wash: rgba(240, 113, 110, 0.1);
  --route-line: rgba(138, 215, 255, 0.56);
  --route-halo: rgba(138, 215, 255, 0.2);
}

.hero-preview {
  position: relative;
  overflow-x: clip;
  padding-top: 44px;
  padding-bottom: 60px;
  text-align: center;
}

.hero-preview__inner {
  width: 100%;
  max-width: var(--page-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.hero-preview__title {
  margin: 22px auto 0;
  font-size: clamp(52px, 5vw, 64px);
  font-weight: 420;
  letter-spacing: 0.005em;
}

.hero-preview__actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 30px;
}

.hero-preview__desc {
  max-width: 920px;
  margin: 22px auto 0;
  color: var(--color-text-muted);
  font-size: 16.5px;
  line-height: 1.7;
}

.fact-capsules {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.fact-capsules span,
.badge,
.tag {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 5px 14px;
  overflow: hidden;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-pill);
  background: var(--badge-bg);
  color: var(--color-text-muted);
  font-size: 12.5px;
}

.fact-capsules span {
  font-family: var(--font-mono);
}

.fact-capsules b {
  color: var(--color-success);
  font-weight: 500;
}

.badge.is-accent,
.tag.is-accent {
  border-color: var(--color-accent-strong);
  color: var(--color-accent);
  background: var(--accent-wash);
}

.badge.is-success {
  color: var(--color-success);
  background: var(--success-wash);
}

.environment-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.environment-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.environment-item {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.environment-item svg {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  color: var(--color-text-muted);
}

.environment-item .flag-svg {
  width: 22px;
  height: 16px;
  flex-basis: 22px;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 0 0 1px var(--color-edge);
}

.environment-divider {
  width: 1px;
  height: 18px;
  flex: 0 0 1px;
  background: var(--color-border);
}

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

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

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

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

.trunk-wrap {
  width: 100%;
  max-width: var(--hero-route-width);
  margin: 38px auto 0;
}

.trunk-panel {
  overflow: hidden;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
  transition: transform var(--transition-base);
}

.trunk-panel:hover {
  transform: translateY(-3px);
}

.trunk-chrome {
  display: flex;
  min-height: 46px;
  align-items: center;
  gap: 14px;
  padding: 10px 22px;
  border-bottom: 1px solid var(--color-edge-soft);
  background: var(--color-panel-chrome);
}

.chrome-dots {
  display: flex;
  gap: 7px;
}

.chrome-dots i {
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  border-radius: var(--radius-pill);
}

.chrome-dots i:nth-child(1) {
  background: var(--color-error);
}

.chrome-dots i:nth-child(2) {
  background: var(--color-warning);
}

.chrome-dots i:nth-child(3) {
  background: var(--color-success);
}

.chrome-label,
.chrome-route {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.chrome-label {
  color: var(--color-accent);
}

.chrome-route {
  margin-left: auto;
  color: var(--color-text-muted);
}

.trunk-body {
  padding: 30px 34px 24px;
}

.trunk-svg {
  width: 100%;
  height: auto;
}

.trunk-base {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 3;
  stroke-linecap: round;
}

.trunk-light {
  fill: none;
  stroke: var(--route-line);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.station-ring {
  fill: var(--color-panel-raised);
  stroke: var(--color-accent);
  stroke-width: 2;
}

.station-core,
.route-runner {
  fill: var(--color-accent);
}

.station-link {
  stroke: var(--color-border);
}

.station-tag {
  fill: var(--color-panel);
  stroke: var(--color-border);
}

.station-name {
  fill: var(--color-text);
  font-family: var(--font-body);
  font-size: 13px;
  text-anchor: middle;
}

.route-runner-halo,
.terminal-glow {
  fill: var(--color-accent);
  opacity: 0.2;
}

.route-runner-group {
  animation: route-run 11s linear infinite;
}

.terminal-glow {
  transform-box: fill-box;
  transform-origin: center;
  animation: route-breathe 3.4s ease-in-out infinite;
}

@keyframes route-run {
  0% {
    opacity: 0;
    transform: translateX(0);
  }

  5% {
    opacity: 1;
  }

  92% {
    opacity: 1;
    transform: translateX(840px);
  }

  100% {
    opacity: 0;
    transform: translateX(840px);
  }
}

@keyframes route-breathe {
  0%,
  100% {
    opacity: 0.1;
    transform: scale(1);
  }

  50% {
    opacity: 0.3;
    transform: scale(1.3);
  }
}

.tab-shell {
  min-width: 0;
}

.tab-list {
  display: flex;
  width: fit-content;
  max-width: 100%;
  gap: 6px;
  padding: 5px;
  overflow-x: auto;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  -webkit-overflow-scrolling: touch;
}

.tab-list [role="tab"] {
  min-width: 92px;
  min-height: 42px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  background: var(--color-transparent);
  white-space: nowrap;
}

.tab-list [role="tab"][aria-selected="true"],
.tab-list [role="tab"].is-active {
  color: var(--color-bg);
  background: var(--color-accent);
}

.tab-panel {
  min-width: 0;
  margin-top: 24px;
}

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

.toc-tabs {
  position: sticky;
  z-index: 20;
  top: 12px;
  display: flex;
  max-width: 100%;
  gap: 6px;
  margin-bottom: 38px;
  padding: 7px;
  overflow-x: auto;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-card);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  display: inline-flex;
  min-width: max-content;
  min-height: 40px;
  align-items: center;
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  font-size: 13px;
  white-space: nowrap;
}

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

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

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: clip;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.faq-item summary {
  position: relative;
  min-height: 58px;
  padding: 17px 56px 17px 20px;
  color: var(--color-text);
  font-weight: 600;
  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: 22px;
  transform: translateY(-50%);
}

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

.faq-answer {
  padding: 0 20px 20px;
  color: var(--color-text-muted);
}

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

.plan-card {
  position: relative;
  min-width: 0;
  padding: 30px;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  transform-style: preserve-3d;
}

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

.plan-card__badge {
  position: absolute;
  top: 18px;
  right: 18px;
}

.plan-card__period {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.plan-card__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 16px 0 8px;
  color: var(--color-text);
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.plan-card__price small {
  font-size: 14px;
  font-weight: 450;
}

.plan-card__features {
  display: grid;
  gap: 10px;
  margin: 24px 0;
  padding: 0;
  list-style: none;
}

.plan-card__features li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
}

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

.plan-card .btn,
.plan-card .btn-primary,
.plan-card .btn-secondary {
  width: 100%;
}

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

.data-table,
.route-table,
.compare-table {
  width: 100%;
  min-width: var(--table-min-width);
  border-collapse: collapse;
  color: var(--color-text-muted);
}

.data-table th,
.data-table td,
.route-table th,
.route-table td,
.compare-table th,
.compare-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--color-edge-soft);
  text-align: left;
  vertical-align: middle;
}

.data-table th,
.route-table th,
.compare-table th {
  color: var(--color-text);
  background: var(--color-panel-raised);
  font-size: 13px;
  font-weight: 650;
}

.data-table td:first-child,
.route-table td:first-child,
.compare-table td:first-child {
  color: var(--color-text);
  font-weight: 550;
}

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

.route-group-row th {
  color: var(--color-accent);
  font-family: var(--font-mono);
  letter-spacing: 0.07em;
}

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

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

.platform-card {
  display: flex;
  min-width: 0;
  min-height: 194px;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding: 22px 14px;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  text-align: center;
}

.platform-card__icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  background: var(--color-panel-raised);
}

.platform-card__icon svg {
  width: 26px;
  height: 26px;
}

.platform-card h3 {
  margin: 0;
  font-size: 17px;
}

.platform-card .btn-quiet {
  width: 100%;
  padding-inline: 10px;
}

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

.article-card {
  display: flex;
  min-width: 0;
  min-height: 280px;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), border-color var(--transition-fast);
}

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

.article-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.article-card h3 {
  margin: 18px 0 12px;
  font-size: 22px;
}

.article-card p {
  font-size: 14px;
}

.article-card__link {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  margin-top: auto;
  padding-top: 20px;
  color: var(--color-accent);
  font-weight: 600;
}

.callout {
  position: relative;
  padding: 22px 24px 22px 28px;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-md);
  background: var(--accent-wash);
}

.callout::before {
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 0;
  width: 3px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  background: var(--color-accent);
  content: "";
}

.callout.is-warning {
  background: var(--warning-wash);
}

.callout.is-warning::before {
  background: var(--color-warning);
}

.promo-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 56px;
  padding: clamp(26px, 5vw, 46px);
  overflow-x: clip;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-xl);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
}

.promo-block h2 {
  margin-bottom: 10px;
  font-size: clamp(28px, 4vw, 42px);
}

.float-cta {
  position: fixed;
  z-index: 80;
  right: 28px;
  bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-pill);
  color: var(--color-bg);
  background: var(--color-accent);
  box-shadow: var(--shadow-button);
  font-size: 14px;
  font-weight: 700;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

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

.float-cta svg {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

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

.feature-browser {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.6fr);
  gap: 34px;
}

.feature-stops {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 10px 0;
}

.feature-stops::before {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 20px;
  width: 1px;
  background: var(--color-border);
  content: "";
}

.feature-stop {
  position: relative;
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 14px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  background: var(--color-transparent);
  text-align: left;
}

.feature-stop::before {
  z-index: 1;
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
  border: 4px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-border);
  content: "";
}

.feature-stop[aria-selected="true"],
.feature-stop.is-active {
  color: var(--color-text);
  background: var(--accent-wash);
}

.feature-stop[aria-selected="true"]::before,
.feature-stop.is-active::before {
  background: var(--color-accent);
  box-shadow: 0 0 14px var(--color-accent);
}

.feature-detail {
  min-height: 330px;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-xl);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
}

.preview-main {
  padding-bottom: 80px;
}

.preview-section {
  padding-top: 86px;
  padding-bottom: 24px;
}

.preview-section__head {
  margin-bottom: 30px;
}

.preview-kicker {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.preview-color-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

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

.preview-swatch__color {
  height: 92px;
}

.preview-swatch__meta {
  padding: 12px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

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

.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);
}

.preview-type-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 20px;
}

.preview-type-card {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
}

.preview-type-card p {
  margin-bottom: 12px;
}

.preview-button-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.preview-disabled {
  opacity: 0.48;
  pointer-events: none;
}

.preview-component-stack {
  display: grid;
  gap: 26px;
}

.preview-footer {
  margin-top: 90px;
}

@media (max-width: 960px) {
  .pricing-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-browser {
    grid-template-columns: 1fr;
  }

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

  .preview-type-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-preview {
    padding-top: 36px;
  }

  .hero-preview__title {
    font-size: clamp(28px, 9vw, 40px);
  }

  .trunk-body {
    padding: 24px 18px;
  }

  .station-tag,
  .station-link,
  .station-name {
    display: none;
  }

  .chrome-route {
    display: none;
  }

  .environment-divider {
    display: none;
  }

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

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

@media (max-width: 640px) {
  .hero-preview__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-preview__actions .btn-primary,
  .hero-preview__actions .btn-secondary {
    width: 100%;
  }

  .environment-row {
    gap: 16px;
  }

  .environment-group {
    gap: 12px;
  }

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

  .platform-card {
    min-height: 174px;
  }

  .preview-color-grid {
    grid-template-columns: 1fr 1fr;
  }

  .plan-card,
  .article-card {
    transform: none;
  }

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

@media (max-width: 390px) {
  .platform-grid,
  .preview-color-grid {
    grid-template-columns: 1fr;
  }

  .fact-capsules span {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .route-runner-group,
  .terminal-glow {
    animation: none;
  }
}