.tab-shell {
  display: grid;
  gap: 28px;
}

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

.tab-list [role="tab"] {
  min-height: 40px;
  flex: 0 0 auto;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-text-soft);
  font-size: 14px;
  font-weight: 700;
  padding: 0 20px;
}

.tab-list [role="tab"][aria-selected="true"] {
  background: var(--color-page);
  box-shadow: 0 1px 2px var(--color-shadow);
  color: var(--color-text);
}

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

.toc-tabs {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  max-width: 100%;
  gap: 6px;
  overflow-x: auto;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-page);
  padding-top: 10px;
  padding-bottom: 10px;
  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-pill);
  color: var(--color-text-soft);
  font-size: 13px;
  font-weight: 650;
  padding: 0 16px;
}

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

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

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

.faq-item summary {
  position: relative;
  list-style: none;
  color: var(--color-text);
  font-size: 18px;
  font-weight: 750;
  padding: 24px 44px 24px 0;
}

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

.faq-item summary::after {
  position: absolute;
  top: 50%;
  right: 4px;
  color: var(--color-accent-deep);
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  transform: translateY(-50%);
}

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

.faq-answer {
  max-width: 820px;
  color: var(--color-text-soft);
  padding: 0 44px 23px 0;
}

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

.price-card {
  position: relative;
  display: flex;
  min-height: 100%;
  flex-direction: column;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  padding: 30px;
}

.price-card.is-current {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.price-card-best {
  position: absolute;
  top: 18px;
  right: 18px;
  border-radius: var(--radius-pill);
  background: var(--gradient-warm);
  color: var(--color-page);
  font-size: 12px;
  font-weight: 800;
  padding: 5px 10px;
}

.price-card h3 {
  padding-right: 64px;
}

.price-value {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin: 18px 0;
  font-family: var(--font-mono);
}

.price-value strong {
  font-size: 38px;
  line-height: 1;
}

.price-value span,
.price-card-note {
  color: var(--color-text-soft);
  font-size: 13px;
}

.price-features {
  display: grid;
  gap: 10px;
  margin: 22px 0 28px;
  list-style: none;
}

.price-features li {
  position: relative;
  color: var(--color-text-soft);
  padding-left: 20px;
}

.price-features li::before {
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background: var(--gradient-warm);
  content: "";
}

.price-card .btn {
  margin-top: auto;
}

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

.data-table,
.network-table,
.compare-table {
  width: 100%;
  min-width: 720px;
  text-align: left;
}

.data-table th,
.data-table td,
.network-table th,
.network-table td,
.compare-table th,
.compare-table td {
  border-bottom: 1px solid var(--color-line);
  padding: 15px 18px;
}

.data-table th,
.network-table th,
.compare-table th {
  background: var(--color-panel-strong);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.data-table td:first-child,
.network-table td:first-child,
.compare-table td:first-child {
  color: var(--color-text);
  font-weight: 700;
}

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

.data-table tbody tr:hover,
.network-table tbody tr:hover,
.compare-table tbody tr:hover {
  background: var(--color-panel);
}

.region-row th {
  background: var(--color-text);
  color: var(--color-page);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

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

.platform-card {
  display: flex;
  min-height: 210px;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  padding: 24px;
  transition: transform var(--motion-fast), border-color var(--motion-fast);
}

.platform-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.platform-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  overflow: hidden;
}

.platform-icon svg {
  width: 23px;
  height: 23px;
}

.platform-card h3 {
  margin: 22px 0 5px;
  font-size: 18px;
}

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

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

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

.article-card {
  display: flex;
  min-height: 280px;
  flex-direction: column;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  padding: 26px;
  transition: border-color var(--motion-fast), transform var(--motion-fast);
}

.article-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

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

.article-card h3 {
  margin: 20px 0 12px;
  font-size: 21px;
}

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

.article-more {
  margin-top: auto;
  color: var(--color-accent-deep);
  font-size: 14px;
  font-weight: 750;
}

.callout {
  position: relative;
  margin: 28px 0;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text-soft);
  padding: 20px 22px;
}

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

.callout-success {
  border-left-color: var(--color-success);
}

.callout-warning {
  border-left-color: var(--color-warning);
}

.promo-block {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 28px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--color-text);
  color: var(--color-page);
  padding: 38px;
}

.promo-block::after {
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 240px;
  height: 240px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-pill);
  content: "";
  opacity: 0.42;
}

.promo-copy {
  position: relative;
  z-index: 1;
}

.promo-copy h2,
.promo-copy h3 {
  color: var(--color-page);
}

.promo-copy p {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--color-panel-strong);
}

.promo-block .btn {
  position: relative;
  z-index: 1;
}

.float-cta {
  position: fixed;
  right: 30px;
  bottom: 30px;
  z-index: 80;
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 9px;
  border-radius: var(--radius-pill);
  background: var(--gradient-warm);
  box-shadow: var(--shadow-floating);
  color: var(--color-page);
  font-size: 15px;
  font-weight: 750;
  padding: 0 26px;
  transition: transform var(--motion-fast);
}

.float-cta:hover {
  transform: translateY(-2px);
}

.float-cta svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.feature-schedule {
  position: relative;
  border-top: 1px solid var(--color-line);
}

.feature-row {
  position: relative;
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr) auto;
  align-items: center;
  gap: 30px;
  min-height: 170px;
  border-bottom: 1px solid var(--color-line);
  padding: 28px 16px;
  transition: background var(--motion-fast);
}

.feature-row:hover {
  background: var(--color-panel);
}

.feature-index {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-weight: 750;
}

.feature-index::after {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--gradient-warm);
  box-shadow: 0 0 0 4px var(--color-page);
  content: "";
}

.feature-row:not(:last-child) .feature-index::before {
  position: absolute;
  top: 22px;
  right: 4px;
  width: 2px;
  height: 170px;
  background: var(--gradient-warm);
  content: "";
}

.feature-copy h3 {
  margin-bottom: 8px;
}

.feature-copy p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--color-text-soft);
}

.feature-fact {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 8px 13px;
  white-space: nowrap;
}

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

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

  .feature-row {
    grid-template-columns: 80px minmax(0, 1fr);
  }

  .feature-fact {
    grid-column: 2;
    justify-self: start;
  }
}

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

  .tab-list {
    width: 100%;
    border-radius: var(--radius-md);
  }

  .promo-block {
    grid-template-columns: 1fr;
    padding: 30px 22px;
  }

  .float-cta {
    right: 16px;
    bottom: 16px;
    min-height: 46px;
    padding-inline: 20px;
  }

  .feature-row {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 16px;
    padding-inline: 0;
  }

  .feature-index {
    gap: 10px;
  }

  .feature-row:not(:last-child) .feature-index::before {
    right: 4px;
  }

  .feature-fact {
    max-width: 100%;
    white-space: normal;
  }

  .price-card {
    padding: 26px 20px;
  }
}