.tabs {
  display: grid;
  gap: 22px;
}

.tab-list {
  width: fit-content;
  max-width: 100%;
  padding: 5px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-pill);
  display: flex;
  gap: 4px;
  overflow-x: auto;
  background: var(--color-panel);
  -webkit-overflow-scrolling: touch;
}

.tab-button {
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  background: var(--color-transparent);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
}

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

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

.toc-tabs {
  max-width: 100%;
  padding: 7px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-sm);
  position: sticky;
  top: var(--toc-top);
  z-index: 24;
  display: flex;
  gap: 5px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  background: var(--color-bg);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.toc-tabs a {
  min-height: 40px;
  padding: 0 13px;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

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

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

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

.faq-item summary {
  min-height: 72px;
  padding: 20px 44px 20px 0;
  position: relative;
  color: var(--color-text);
  font-size: 18px;
  font-weight: 720;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: "+";
  width: 28px;
  height: 28px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-pill);
  position: absolute;
  top: 21px;
  right: 0;
  display: grid;
  place-items: center;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
}

.faq-item[open] summary::after {
  content: "−";
  background: var(--color-accent-soft);
}

.faq-answer {
  max-width: 850px;
  padding: 0 44px 22px 0;
  color: var(--color-text-muted);
}

/* Keep closed disclosure content out of layout and accessibility geometry. */
.faq-item:not([open]) .faq-answer {
  display: none;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.plan-card {
  min-width: 0;
  padding: 26px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-md);
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-panel-glass);
}

.plan-card.is-current {
  border-color: var(--color-accent-dark);
  background: var(--color-accent-soft);
}

.plan-card.is-best {
  padding-top: 36px;
}

.plan-badge {
  max-width: calc(100% - 28px);
  min-height: 27px;
  padding: 0 10px;
  border-radius: 0 0 var(--radius-xs) var(--radius-xs);
  position: absolute;
  top: 0;
  right: 14px;
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  color: var(--color-text);
  background: var(--color-accent);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
}

.plan-name {
  margin: 0 0 10px;
  font-size: 22px;
}

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

.plan-price {
  margin: 16px 0;
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.plan-currency {
  font-size: 20px;
  font-weight: 750;
}

.plan-amount {
  font-size: 46px;
  font-weight: 830;
  line-height: 1;
  letter-spacing: -0.02em;
}

.plan-unit {
  color: var(--color-text-muted);
}

.plan-features {
  margin-bottom: 24px;
  padding: 18px 0 0;
  border-top: var(--border-hairline) dashed var(--color-border);
  color: var(--color-text-muted);
}

.plan-card .button {
  margin-top: auto;
}

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

.data-table,
.route-table,
.comparison-table {
  width: 100%;
  min-width: 720px;
  margin: 0;
  background: var(--color-bg);
}

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

.data-table th,
.route-table th,
.comparison-table th {
  background: var(--color-panel-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

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

.route-group-row th {
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
}

.route-type {
  font-family: var(--font-mono);
  font-size: 12px;
}

.route-media {
  color: var(--color-success);
  font-weight: 700;
}

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

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

.platform-card {
  min-width: 0;
  min-height: 190px;
  padding: 22px 16px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 14px;
  text-align: center;
  background: var(--color-panel-glass);
}

.platform-card svg {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
}

.platform-name {
  font-size: 16px;
  font-weight: 760;
}

.platform-card .button {
  min-width: 0;
  width: 100%;
  margin-top: auto;
  padding-inline: 12px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.article-card {
  min-width: 0;
  padding: 22px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  background: var(--color-panel-glass);
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast);
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
}

.article-meta {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  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 {
  margin-top: auto;
  color: var(--color-accent-dark);
  font-weight: 750;
}

.callout {
  margin: 24px 0;
  padding: 20px 22px;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-accent-soft);
}

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

.promo-block {
  margin-top: 48px;
  padding: clamp(24px, 4vw, 42px);
  border: var(--border-hairline) solid var(--color-accent-dark);
  border-radius: var(--radius-md);
  position: relative;
  overflow-x: clip;
  background: var(--color-panel);
}

.promo-block::after {
  content: "";
  width: 180px;
  height: 180px;
  border: var(--border-hairline) dashed var(--color-accent);
  border-radius: var(--radius-pill);
  position: absolute;
  right: -65px;
  bottom: -100px;
}

.promo-brand {
  margin-bottom: 8px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.promo-block h2 {
  max-width: 720px;
  font-size: clamp(28px, 4vw, 42px);
}

.float-cta {
  min-width: 112px;
  min-height: 48px;
  padding: 0 18px;
  border: var(--border-hairline) solid var(--color-accent-dark);
  border-radius: var(--radius-pill);
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 45;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--color-text);
  background: var(--color-accent);
  box-shadow: var(--shadow-button);
  font-size: 14px;
  font-weight: 800;
  transition: transform var(--transition-fast);
}

.float-cta:hover {
  transform: translateY(-3px);
}

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

.feature-tracks {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 64px;
}

.feature-tracks::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  border-left: var(--border-hairline) dashed var(--color-border);
}

.feature-module {
  min-width: 0;
  padding: 28px;
  border-top: var(--border-hairline) solid var(--color-border);
  background: var(--color-panel-glass);
}

.feature-module:nth-child(even) {
  margin-top: 54px;
}

.feature-module-wide {
  grid-column: 1 / -1;
  margin-top: 0;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-md);
}

.feature-number {
  margin-bottom: 14px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
}

.preview-hero {
  min-height: 720px;
  position: relative;
  overflow-x: clip;
}

.preview-hero::before {
  content: "";
  width: 112px;
  position: absolute;
  top: 292px;
  bottom: 112px;
  left: 50%;
  transform: translateX(-50%);
  border-left: var(--border-hairline) dashed var(--color-border);
  border-right: var(--border-hairline) dashed var(--color-border);
  background: linear-gradient(90deg, var(--color-transparent), var(--color-panel), var(--color-transparent));
}

.preview-hero-shell {
  min-height: 720px;
  position: relative;
}

.preview-hero-copy {
  max-width: 980px;
  margin-inline: auto;
  padding-top: 24px;
  position: relative;
  z-index: 6;
  text-align: center;
}

.preview-hero-copy .eyebrow {
  margin-bottom: 10px;
}

.preview-hero-copy .lead {
  margin: 12px auto 0;
  font-size: 15px;
}

.preview-hero-copy .button-row {
  margin-top: 16px;
  justify-content: center;
}

.title-accent {
  color: var(--color-accent-dark);
  position: relative;
  white-space: nowrap;
}

.title-accent::after {
  content: "";
  height: 6px;
  border-radius: var(--radius-pill);
  position: absolute;
  right: 0;
  bottom: -0.07em;
  left: 0.04em;
  background: var(--color-accent);
  opacity: 0.7;
}

.trust-row {
  margin-top: 11px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.trust-item {
  min-height: 24px;
  padding: 0 10px;
  border-right: var(--border-hairline) solid var(--color-border);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.route-device {
  width: 100%;
  height: 330px;
  position: absolute;
  top: 292px;
  left: 0;
  z-index: 2;
  pointer-events: none;
}

.route-device svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.route-line,
.tower-line,
.engineering-line {
  fill: none;
  stroke: var(--color-text);
  stroke-width: 1.35;
  vector-effect: non-scaling-stroke;
}

.tower-line-strong {
  fill: none;
  stroke: var(--color-text);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.engineering-line {
  stroke: var(--color-border);
  stroke-dasharray: 5 7;
}

.beam-glow {
  fill: none;
  stroke: var(--color-accent-glow);
  stroke-width: 15;
  stroke-linecap: round;
}

.beam-line {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 2.4;
  stroke-linecap: round;
}

.beam-return {
  stroke: var(--color-accent-dark);
  stroke-dasharray: 8 8;
}

.signal-dot {
  fill: var(--color-accent);
  animation: signal-pulse 2.4s ease-in-out infinite;
}

.signal-dot-return {
  fill: var(--color-accent-dark);
  animation-delay: 1.2s;
}

.node-ring {
  fill: var(--color-bg);
  stroke: var(--color-accent);
  stroke-width: 2;
}

.node-core {
  fill: var(--color-accent);
}

.map-label {
  fill: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.09em;
}

.map-label-strong {
  fill: var(--color-text);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.fact-card {
  width: 214px;
  min-height: 84px;
  padding: 13px 16px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-md);
  position: absolute;
  bottom: 108px;
  z-index: 5;
  background: var(--color-panel-glass);
}

.fact-card-left {
  left: 6%;
}

.fact-card-right {
  right: 6%;
}

.fact-kicker {
  display: flex;
  justify-content: space-between;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fact-value {
  margin-top: 5px;
  display: flex;
  align-items: baseline;
  gap: 7px;
}

.fact-number {
  font-size: 28px;
  font-weight: 820;
  letter-spacing: -0.02em;
}

.fact-label {
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 650;
}

.hero-directory {
  min-height: 104px;
  padding: 13px 138px 13px 18px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-md);
  position: absolute;
  right: var(--gutter);
  bottom: 8px;
  left: var(--gutter);
  z-index: 8;
  display: grid;
  grid-template-columns: minmax(410px, 0.9fr) minmax(550px, 1.1fr);
  gap: 22px;
  background: var(--color-panel-glass);
}

.directory-block + .directory-block {
  padding-left: 22px;
  border-left: var(--border-hairline) dashed var(--color-border);
}

.directory-heading {
  margin: 0 0 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.platform-list,
.region-list {
  display: flex;
  gap: 6px;
}

.platform-chip,
.region-chip {
  min-width: 0;
  min-height: 43px;
  padding: 0 8px;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 0;
  gap: 6px;
  background: var(--color-bg);
  font-size: 11px;
  font-weight: 650;
  white-space: nowrap;
}

.platform-chip svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.flag {
  width: 25px;
  height: 18px;
  flex: 0 0 auto;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--flag-white);
}

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

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

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

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

.flag-black {
  fill: var(--flag-black);
}

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

.swatch {
  min-width: 0;
  border: var(--border-hairline) solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg);
}

.swatch-color {
  height: 76px;
}

.swatch-body {
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  overflow-wrap: anywhere;
}

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

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

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

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

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

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

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

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

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

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

@keyframes signal-pulse {
  0%,
  100% {
    opacity: 0.48;
    transform: translateX(-7px) scale(0.85);
  }

  50% {
    opacity: 1;
    transform: translateX(7px) scale(1.12);
  }
}

@media (max-width: 1000px) {
  .platform-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .hero-directory {
    padding-right: 18px;
    grid-template-columns: 1fr;
  }

  .directory-block + .directory-block {
    padding-top: 10px;
    padding-left: 0;
    border-top: var(--border-hairline) dashed var(--color-border);
    border-left: 0;
  }
}

@media (max-width: 768px) {
  .pricing-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-tracks {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-tracks::before {
    left: 8px;
  }

  .feature-module,
  .feature-module:nth-child(even) {
    margin-top: 0;
    margin-left: 18px;
  }

  .feature-module-wide {
    grid-column: auto;
  }

  .preview-hero {
    min-height: 960px;
  }

  .preview-hero-shell {
    min-height: 960px;
  }

  .route-device {
    top: 350px;
    height: 280px;
  }

  .route-device .map-label,
  .route-device .engineering-line {
    display: none;
  }

  .fact-card {
    width: 158px;
    bottom: 300px;
    padding: 11px 12px;
  }

  .fact-card-left {
    left: var(--gutter);
  }

  .fact-card-right {
    right: var(--gutter);
  }

  .fact-number {
    font-size: 23px;
  }

  .hero-directory {
    bottom: 18px;
  }

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

@media (max-width: 640px) {
  .platform-grid {
    grid-template-columns: 1fr;
  }

  .float-cta {
    right: 16px;
    bottom: 16px;
  }

  .preview-hero-copy {
    padding-top: 20px;
  }

  .preview-hero-copy .lead {
    font-size: 14px;
  }

  .preview-hero {
    min-height: 1040px;
  }

  .preview-hero-shell {
    min-height: 1040px;
  }

  .route-device {
    top: 390px;
    height: 250px;
  }

  .fact-card {
    bottom: 358px;
  }

  .hero-directory {
    right: 16px;
    left: 16px;
  }

  .platform-list,
  .region-list {
    flex-wrap: wrap;
  }

  .platform-chip,
  .region-chip {
    flex: 1 1 92px;
  }

  .table-scroll {
    max-width: 100%;
  }

  .data-table,
  .route-table,
  .comparison-table {
    min-width: 680px;
  }
}