.tab-shell {
  margin-block: 28px;
}

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

.tab-list [role="tab"] {
  min-width: 88px;
  min-height: 40px;
  flex: 0 0 auto;
  border: 0;
  border-radius: var(--radius-small);
  background: transparent;
  padding: 8px 16px;
  color: var(--color-muted);
  font-weight: 600;
}

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

.tab-panel {
  margin-top: 18px;
}

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

.toc-tabs {
  position: sticky;
  top: 10px;
  z-index: 40;
  display: flex;
  max-width: 100%;
  gap: 4px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  padding: 5px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  display: inline-flex;
  min-height: 40px;
  flex: 0 0 auto;
  align-items: center;
  border-radius: var(--radius-small);
  padding: 7px 14px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 600;
}

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

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

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

.faq-item summary {
  position: relative;
  min-height: 58px;
  padding: 18px 44px 18px 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 19px;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  top: 17px;
  right: 4px;
  width: 26px;
  height: 26px;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-accent);
  content: "+";
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 23px;
  text-align: center;
}

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

.faq-answer {
  max-width: 820px;
  padding: 0 44px 22px 0;
  color: var(--color-muted);
}

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

.plan-card {
  position: relative;
  display: flex;
  min-height: 100%;
  flex-direction: column;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transform-style: preserve-3d;
}

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

.plan-ribbon {
  position: absolute;
  top: 14px;
  right: 14px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  padding: 4px 10px;
  color: var(--color-panel);
  font-size: 11px;
  font-weight: 700;
}

.plan-name {
  margin-bottom: 16px;
  padding-right: 72px;
  font-family: var(--font-display);
  font-size: 24px;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 14px;
  color: var(--color-accent);
}

.plan-price strong {
  font-family: var(--font-mono);
  font-size: 36px;
  line-height: 1;
}

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

.plan-traffic {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding-block: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.plan-features {
  display: grid;
  gap: 8px;
  margin: 18px 0 24px;
  padding: 0;
  list-style: none;
  color: var(--color-muted);
  font-size: 13.5px;
}

.plan-features li::before {
  margin-right: 8px;
  color: var(--color-accent);
  content: "✓";
  font-weight: 700;
}

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

.table-scroll,
.server-table-wrap,
.comparison-table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-panel);
  -webkit-overflow-scrolling: touch;
}

.data-table,
.server-table,
.comparison-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  color: var(--color-text);
  font-size: 13.5px;
}

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

.data-table th,
.server-table th,
.comparison-table th {
  background: var(--color-chrome);
  color: var(--color-text);
  font-weight: 700;
  white-space: nowrap;
}

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

.server-group-row th {
  background: var(--color-ink);
  color: var(--color-dark-text);
  font-family: var(--font-display);
  font-size: 16px;
}

.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: 14px;
}

.platform-card {
  display: flex;
  min-height: 180px;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  padding: 22px;
  box-shadow: var(--shadow-card);
}

.platform-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-small);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

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

.platform-name {
  margin: 15px 0 5px;
  font-family: var(--font-display);
  font-size: 20px;
}

.platform-note {
  margin-bottom: 16px;
  color: var(--color-muted);
  font-size: 12px;
}

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

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

.article-card {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  border-top: 2px solid var(--color-accent);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-panel);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

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

.article-title {
  margin: 18px 0 12px;
  font-family: var(--font-display);
  font-size: 23px;
  line-height: 1.35;
}

.article-summary {
  color: var(--color-muted);
  font-size: 13.5px;
}

.article-card .text-link {
  margin-top: auto;
}

.callout {
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-small) var(--radius-small) 0;
  background: var(--color-accent-soft);
  padding: 20px 22px;
  color: var(--color-text);
}

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

.promo-block {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  overflow-x: clip;
  border: 1px solid var(--color-line-dark);
  border-radius: var(--radius-medium);
  background: var(--color-ink);
  padding: 34px;
  color: var(--color-dark-muted);
}

.promo-block h2,
.promo-block h3 {
  margin-bottom: 7px;
  color: var(--color-dark-text);
}

.promo-block p {
  margin-bottom: 0;
}

.ledger {
  border-top: 1px solid var(--color-line-dark);
}

.ledger-row {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(210px, .8fr) minmax(0, 1.3fr);
  gap: 22px;
  align-items: baseline;
  border-bottom: 1px solid var(--color-line-dark);
  padding: 30px 22px;
  background: var(--color-ink);
}

.ledger-row:nth-child(even) {
  background: var(--color-ink-alt);
}

.ledger-row::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  content: "";
  transition: width .16s ease;
}

.ledger-row:hover::before {
  width: 16px;
}

.ledger-number {
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 29px;
}

.ledger-title {
  color: var(--color-dark-text);
  font-family: var(--font-display);
  font-size: 23px;
}

.ledger-copy {
  margin: 0;
  color: var(--color-dark-muted);
}

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

.preview-hero {
  position: relative;
  overflow-x: clip;
  background: linear-gradient(to bottom, var(--color-paper) 0, var(--color-paper) 76%, var(--color-ink) 76%, var(--color-ink) 100%);
  text-align: center;
}

.preview-hero-inner {
  position: relative;
  z-index: 2;
  padding-top: 30px;
  padding-bottom: 184px;
}

.hero-title {
  max-width: 980px;
  margin: 16px auto 0;
  font-size: clamp(52px, 5vw, 68px);
}

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

.hero-copy {
  max-width: 720px;
  margin: 14px auto 0;
  color: var(--color-muted);
}

.hero-actions {
  justify-content: center;
  margin-top: 22px;
}

.hero-pills,
.hero-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-items: center;
  justify-content: center;
}

.hero-pills {
  margin-top: 18px;
}

.hero-strip {
  margin-top: 13px;
}

.hero-strip + .hero-strip {
  margin-top: 8px;
}

.strip-label {
  border-right: 1px solid var(--color-line);
  padding-right: 10px;
  color: var(--color-muted);
  font-size: 11px;
  letter-spacing: .13em;
}

.strip-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-muted);
  font-size: 12px;
}

.strip-item svg {
  width: 18px;
  height: 18px;
}

.flag-inline {
  display: inline-flex;
  width: 24px;
  height: 16px;
  flex: 0 0 24px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: 3px;
}

.flag-inline svg {
  width: 24px;
  height: 16px;
}

.app-window {
  position: relative;
  z-index: 4;
  width: 920px;
  max-width: calc(100% - 64px);
  margin: 26px auto -152px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
  text-align: left;
}

.window-titlebar {
  position: relative;
  display: flex;
  height: 40px;
  align-items: center;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-chrome);
  padding-inline: 16px;
}

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

.window-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

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

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

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

.window-title {
  position: absolute;
  right: 0;
  left: 0;
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: .04em;
  text-align: center;
  pointer-events: none;
}

.window-body {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
}

.window-routes {
  border-right: 1px solid var(--color-line);
  padding: 14px 12px 12px;
}

.window-route-head {
  display: flex;
  justify-content: space-between;
  padding: 0 8px 10px;
  color: var(--color-muted);
  font-size: 11px;
  letter-spacing: .12em;
}

.route-row {
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: var(--radius-small);
  padding: 9px 10px;
}

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

.route-row.is-current {
  border-top-color: transparent;
  background: var(--color-accent);
  color: var(--color-panel);
}

.route-row.is-current + .route-row {
  border-top-color: transparent;
}

.route-name {
  font-size: 13px;
}

.route-code {
  margin-left: auto;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.route-row.is-current .route-code {
  color: var(--color-white-soft);
}

.route-current-label {
  border-radius: var(--radius-pill);
  background: var(--color-white-faint);
  padding: 1px 7px;
  font-size: 10px;
}

.connection-panel {
  display: flex;
  flex-direction: column;
  padding: 20px 26px 16px;
}

.connection-state {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--color-success);
  font-size: 13px;
  font-weight: 700;
}

.connection-state-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px var(--color-success-soft);
}

.connection-title {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
  margin-top: 10px;
}

.connection-title strong {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
}

.setting-row,
.current-plan,
.window-platforms {
  display: flex;
  align-items: center;
  gap: 11px;
}

.setting-row {
  margin-top: 16px;
}

.toggle-on {
  position: relative;
  width: 38px;
  height: 21px;
  flex: 0 0 38px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.toggle-on::after {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--color-panel);
  content: "";
}

.setting-state {
  color: var(--color-success);
  font-size: 12px;
}

.window-rule {
  width: 100%;
  margin: 16px 0;
}

.current-plan-label {
  color: var(--color-muted);
  font-size: 11px;
  letter-spacing: .12em;
}

.current-plan-name {
  font-weight: 700;
}

.current-plan-price {
  margin-left: auto;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

.plan-note {
  margin: 4px 0 0;
  color: var(--color-muted);
  font-size: 12px;
}

.window-platforms {
  flex-wrap: wrap;
  margin-top: auto;
  border-top: 1px solid var(--color-line);
  padding-top: 14px;
}

.window-platform {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-muted);
  font-size: 11px;
}

.window-platform svg {
  width: 15px;
  height: 15px;
}

.preview-section {
  padding-top: 82px;
  padding-bottom: 82px;
}

.preview-heading {
  max-width: 720px;
  margin-bottom: 38px;
}

.preview-heading h2 {
  margin-bottom: 12px;
}

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

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

.swatch-color {
  height: 84px;
  border-bottom: 1px solid var(--color-line);
}

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

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

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

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

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

.swatch-info {
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.type-samples {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.type-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 28px;
  align-items: baseline;
  border-bottom: 1px solid var(--color-line);
  padding-block: 24px;
}

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

.type-display {
  font-family: var(--font-display);
  font-size: 42px;
  line-height: 1.15;
}

.type-heading {
  font-family: var(--font-display);
  font-size: 28px;
}

.type-body {
  font-size: 16px;
}

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

.preview-dark {
  background: var(--color-ink);
  color: var(--color-dark-text);
}

.preview-footer {
  margin-top: 0;
}

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

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

  .ledger-row {
    grid-template-columns: 50px 1fr;
  }

  .ledger-copy {
    grid-column: 2;
  }

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

@media (max-width: 720px) {
  .app-window {
    max-width: calc(100% - 32px);
    margin-bottom: -112px;
  }

  .preview-hero {
    background: linear-gradient(to bottom, var(--color-paper) 0, var(--color-paper) 82%, var(--color-ink) 82%, var(--color-ink) 100%);
  }

  .preview-hero-inner {
    padding-bottom: 132px;
  }

  .window-body {
    grid-template-columns: 1fr;
  }

  .window-routes {
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .route-row:nth-of-type(n+5) {
    display: none;
  }

  .connection-panel {
    min-height: 290px;
  }

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

  .promo-block .btn {
    width: 100%;
  }

  .type-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 520px) {
  .platform-grid,
  .swatch-grid {
    grid-template-columns: 1fr;
  }

  .hero-strip {
    gap: 9px 13px;
  }

  .strip-label {
    width: 100%;
    border-right: 0;
    padding-right: 0;
  }

  .window-platforms {
    gap: 10px;
  }

  .ledger-row {
    grid-template-columns: 36px 1fr;
    gap: 12px;
    padding-inline: 16px;
  }

  .ledger-number {
    font-size: 22px;
  }

  .ledger-title {
    font-size: 20px;
  }

  .tab-list {
    display: flex;
    width: 100%;
  }
}