.tab-shell {
  width: 100%;
}

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

.tab-list [role="tab"] {
  display: inline-flex;
  min-width: 24px;
  min-height: 40px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  padding-inline: 18px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-text-muted);
  font-weight: 700;
  white-space: nowrap;
}

.tab-list [role="tab"][aria-selected="true"] {
  background: var(--color-accent);
  box-shadow: var(--shadow-near);
  color: var(--color-white);
}

.tab-panel {
  padding-top: 28px;
}

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

.toc-tabs {
  position: sticky;
  z-index: 20;
  top: 12px;
  display: flex;
  max-width: 100%;
  gap: 8px;
  margin-bottom: 36px;
  padding: 8px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel-small);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  display: inline-flex;
  min-height: 38px;
  flex: 0 0 auto;
  align-items: center;
  padding-inline: 16px;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.toc-tabs a:hover,
.toc-tabs a.is-current,
.toc-tabs a[aria-current="location"] {
  background: var(--alpha-accent-10);
  color: var(--color-accent-dark);
}

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

.faq-item {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--alpha-white-85);
}

.faq-item summary {
  position: relative;
  display: flex;
  min-height: 58px;
  align-items: center;
  padding: 15px 52px 15px 20px;
  color: var(--color-text);
  font-weight: 750;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  right: 20px;
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-panel-alt);
  color: var(--color-accent);
  content: "+";
  font-family: var(--font-mono);
  line-height: 1;
}

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

.faq-answer {
  padding: 0 20px 18px;
  color: var(--color-text-muted);
}

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

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

.plan-card {
  position: relative;
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--alpha-white-85), var(--shadow-panel);
  transform-style: preserve-3d;
}

.plan-card.is-featured,
.plan-card[aria-current="true"] {
  border-color: var(--color-accent);
  background: var(--color-panel-alt);
  box-shadow: inset 0 1px 0 var(--alpha-white-85), 0 0 0 2px var(--alpha-accent-10), var(--shadow-panel);
}

.plan-ribbon {
  position: absolute;
  top: 16px;
  right: 16px;
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding-inline: 10px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 750;
}

.plan-name {
  margin: 0 0 14px;
  font-size: 21px;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 14px;
}

.plan-price strong {
  font-family: var(--font-mono);
  font-size: 40px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  line-height: 1;
}

.plan-price span {
  color: var(--color-text-muted);
  font-size: 14px;
}

.plan-note {
  min-height: 48px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.plan-features {
  display: grid;
  gap: 10px;
  margin: 18px 0 26px;
  padding: 18px 0 0;
  border-top: 1px solid var(--color-border);
  list-style: none;
}

.plan-features li {
  position: relative;
  padding-left: 22px;
}

.plan-features li::before {
  position: absolute;
  top: 0.12em;
  left: 0;
  color: var(--color-accent);
  content: "✓";
  font-weight: 850;
}

.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-medium);
  background: var(--color-panel);
  -webkit-overflow-scrolling: touch;
}

.data-table,
.route-table,
.compare-table {
  width: 100%;
  min-width: 680px;
  border-spacing: 0;
  border-collapse: collapse;
  color: var(--color-text);
}

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

.data-table th,
.route-table th,
.compare-table th {
  background: var(--color-panel-alt);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 800;
}

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

.data-table tbody th,
.route-table tbody th,
.compare-table tbody th {
  color: var(--color-text);
}

.route-group-row th {
  background: var(--alpha-accent-10);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.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: 190px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 22px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--alpha-white-85);
  text-align: center;
}

.platform-card svg {
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  color: var(--color-text-muted);
}

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

.platform-card .btn {
  min-height: 38px;
  padding-inline: 15px;
  font-size: 13px;
}

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

.article-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--alpha-white-85), var(--shadow-panel-small);
}

.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: 12px;
}

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

.article-card h3 a {
  text-decoration: none;
}

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

.article-link {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  margin-top: auto;
  color: var(--color-accent-dark);
  font-weight: 750;
  text-decoration: none;
}

.callout {
  position: relative;
  margin: 28px 0;
  padding: 22px 24px 22px 28px;
  border: 1px solid var(--color-border);
  border-left: 5px solid var(--color-accent);
  border-radius: 0 var(--radius-medium) var(--radius-medium) 0;
  background: var(--color-panel-alt);
  color: var(--color-text);
}

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

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

.promo-block {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
  margin-top: 56px;
  padding: 38px;
  border-radius: var(--radius-band);
  background: var(--gradient-accent);
  box-shadow: inset 0 1px 0 var(--alpha-white-22), var(--shadow-panel);
  color: var(--color-bg);
}

.promo-block h2,
.promo-block h3 {
  margin-bottom: 8px;
  color: var(--color-bg);
}

.promo-block p {
  max-width: 680px;
  margin: 0;
}

.promo-block .btn {
  border-color: var(--color-bg);
  background: var(--color-bg);
  color: var(--color-accent-dark);
}

.float-cta {
  position: fixed;
  z-index: 90;
  right: 28px;
  bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  gap: 8px;
  padding-inline: 20px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: var(--shadow-panel-small), var(--shadow-near);
  color: var(--color-white);
  font-size: 14.5px;
  font-weight: 750;
  text-decoration: none;
}

.float-cta:hover {
  background: var(--color-accent-dark);
}

.float-cta-icon {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: 0 0 0 3px var(--alpha-white-22);
}

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

.feature-stack {
  display: grid;
  gap: 28px;
}

.feature-panel {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: center;
  gap: 38px;
  padding: 38px;
  border-radius: var(--radius-large);
  background: var(--color-panel-alt);
}

.feature-panel:nth-child(even) .feature-copy {
  order: 2;
}

.feature-panel:nth-child(even) .feature-window {
  order: 1;
}

.feature-copy {
  min-width: 0;
}

.feature-number {
  display: inline-grid;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-weight: 800;
}

.feature-copy p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.feature-window {
  padding: 18px;
  border: 1px solid var(--alpha-white-85);
  border-radius: var(--radius-medium);
  background: var(--color-white);
  box-shadow: var(--shadow-panel), var(--shadow-near);
  transition: transform 180ms ease;
}

.feature-panel:hover .feature-window {
  transform: translateY(-2px);
}

.mini-window-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: -18px -18px 18px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius-medium) var(--radius-medium) 0 0;
  background: var(--color-chrome);
}

.mini-window-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-border);
}

.mini-window-bar i:nth-child(2) {
  background: var(--color-accent);
}

.mini-window-title {
  margin-left: 8px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.preview-main {
  padding-bottom: 40px;
}

.preview-section {
  padding-top: 88px;
  padding-bottom: 32px;
}

.preview-section-header {
  max-width: 740px;
  margin-bottom: 34px;
}

.preview-section-header p {
  color: var(--color-text-muted);
}

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

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

.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-medium);
  background: var(--color-panel);
}

.swatch-color {
  height: 92px;
}

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

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

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

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

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

.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-label {
  display: grid;
  gap: 2px;
  padding: 13px;
}

.swatch-label strong {
  font-size: 13px;
}

.swatch-label code {
  color: var(--color-text-muted);
  font-size: 11px;
}

.type-specimen {
  padding: 30px;
}

.type-display {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 64px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

.type-body {
  max-width: 650px;
  color: var(--color-text-muted);
  font-size: 18px;
}

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

.button-showcase {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 30px;
}

.preview-dark {
  padding: 30px;
  border-radius: var(--radius-large);
  background: var(--color-text);
}

.preview-static-nav {
  margin: 0;
}

.preview-footer {
  margin-top: 88px;
}

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

.status-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 14px;
  border-radius: var(--radius-small);
  background: var(--color-panel);
}

.status-line span {
  color: var(--color-text-muted);
}

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

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

@media (max-width: 980px) {
  .pricing-grid,
  .article-grid,
  .preview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

  .feature-panel .feature-window,
  .feature-panel:nth-child(even) .feature-window {
    order: 1;
  }

  .feature-panel .feature-copy,
  .feature-panel:nth-child(even) .feature-copy {
    order: 2;
  }
}

@media (max-width: 640px) {
  .pricing-grid,
  .article-grid,
  .preview-grid,
  .preview-grid-two,
  .platform-grid,
  .swatch-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-panel {
    padding: 22px;
  }

  .promo-block {
    grid-template-columns: 1fr;
    padding: 28px 22px;
  }

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

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

  .preview-section {
    padding-top: 64px;
  }

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

  .swatch-color {
    height: 70px;
  }
}