.tab-shell {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.tab-list {
  display: flex;
  gap: 6px;
  padding: 8px;
  overflow-x: auto;
  border-bottom: 1px solid var(--color-border);
  -webkit-overflow-scrolling: touch;
}

[role="tab"] {
  min-height: 44px;
  flex: 0 0 auto;
  padding: 0 17px;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-muted);
  font-weight: 750;
}

[role="tab"][aria-selected="true"] {
  background: var(--color-text);
  color: var(--color-panel);
}

[role="tabpanel"] {
  padding: clamp(22px, 4vw, 44px);
}

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

.toc-tabs {
  position: sticky;
  z-index: 30;
  top: 12px;
  max-width: 100%;
  display: flex;
  gap: 7px;
  margin-block: 22px 42px;
  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);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs::-webkit-scrollbar {
  display: none;
}

.toc-tabs a {
  min-height: 40px;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  padding-inline: 15px;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 750;
}

.toc-tabs a.is-current {
  background: var(--gradient-brand);
  color: var(--color-panel);
}

.faq-list {
  display: grid;
  gap: 10px;
}

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

.faq-item summary {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 20px;
  cursor: pointer;
  color: var(--color-text);
  font-weight: 780;
  list-style: none;
}

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

.faq-item summary::after {
  width: 26px;
  height: 26px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-panel-soft);
  color: var(--color-accent-dark);
  content: "+";
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 20px 20px;
}

.faq-item:not([open]) > .faq-answer {
  display: none;
}

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

.plan-card {
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
}

.plan-card.is-featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-10px);
}

.plan-ribbon {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  background: var(--gradient-current);
  color: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
}

.plan-name {
  margin-bottom: 14px;
  font-size: 20px;
  font-weight: 850;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.plan-price strong {
  font-size: 42px;
  line-height: 1;
}

.plan-price span {
  color: var(--color-muted);
}

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

.plan-features li {
  display: flex;
  gap: 9px;
  color: var(--color-muted);
}

.plan-features li::before {
  flex: 0 0 auto;
  color: var(--color-success);
  content: "✓";
  font-weight: 900;
}

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

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

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

.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-border);
  vertical-align: top;
}

.data-table th,
.route-table th,
.compare-table th {
  background: var(--color-panel-soft);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
}

.data-table td:first-child,
.route-table td:first-child,
.compare-table td:first-child {
  color: var(--color-text);
  font-weight: 760;
}

.route-group td {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-weight: 850;
}

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

.platform-card {
  min-width: 0;
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 13px;
  padding: 22px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  text-align: center;
}

.platform-icon {
  width: 40px;
  height: 40px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

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

.platform-name {
  font-weight: 800;
}

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

.article-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-panel);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
}

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

.article-card p {
  flex: 1;
}

.article-link {
  color: var(--color-accent-dark);
  font-weight: 800;
}

.callout {
  margin-block: 26px;
  padding: 20px 22px;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-accent-soft);
}

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

.promo-block {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 28px;
  margin-top: 58px;
  padding: clamp(26px, 5vw, 48px);
  overflow-x: clip;
  border-radius: var(--radius-xl);
  background: var(--color-text);
  color: var(--color-panel);
}

.promo-block::after {
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 240px;
  height: 240px;
  border-radius: var(--radius-pill);
  background: var(--gradient-brand);
  content: "";
  opacity: .35;
}

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

.promo-brand {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.promo-block h2 {
  margin: 0;
  color: var(--color-panel);
  font-size: clamp(26px, 3vw, 38px);
}

.float-cta {
  position: fixed;
  z-index: 80;
  right: 24px;
  bottom: 18px;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding-inline: 19px;
  border: 1px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-text);
  color: var(--color-panel);
  font-size: 14px;
  font-weight: 820;
  box-shadow: var(--shadow-card);
}

.float-cta svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  color: var(--color-accent);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-block: 24px;
}

.stat-card {
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--color-panel-soft);
}

.stat-num {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 850;
}

.stat-label {
  color: var(--color-muted);
  font-size: 13px;
}

.check-list {
  display: grid;
  gap: 8px;
  padding: 0;
  list-style: none;
}

.verdict {
  margin-block: 24px;
  padding: 18px 20px;
  border-left: 4px solid var(--color-success);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-success-soft);
}

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

.hero-preview {
  position: relative;
  min-height: calc(900px - var(--header-height));
  overflow-x: clip;
}

.hero-preview::after {
  position: absolute;
  right: 0;
  bottom: -74px;
  left: 0;
  height: 108px;
  border-top: 1px solid var(--color-border);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  background: var(--color-panel);
  content: "";
}

.hero-preview-inner {
  position: relative;
  z-index: 1;
  min-height: calc(900px - var(--header-height));
  display: grid;
  grid-template-columns: minmax(0, .91fr) minmax(600px, 1.09fr);
  align-items: center;
  gap: 48px;
  padding-bottom: 24px;
}

.hero-copy {
  position: relative;
  z-index: 3;
  max-width: 570px;
}

.hero-copy h1 {
  margin: 20px 0 0;
}

.hero-copy .button-row {
  margin-top: 26px;
}

.hero-description {
  margin: 22px 0 0;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 22px;
  padding-block: 14px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 650;
}

.trust-line span {
  display: inline-flex;
  align-items: center;
}

.trust-line span + span::before {
  width: 3px;
  height: 3px;
  flex: 0 0 auto;
  margin-inline: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.visual-stage {
  position: relative;
  height: 690px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.visual-bars {
  position: absolute;
  inset: 26px -26px 22px 66px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--gradient-backdrop);
}

.visual-bars::before {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, transparent 0, transparent 63px, var(--color-white-soft) 64px, var(--color-white-soft) 65px, transparent 66px, transparent 124px);
  content: "";
}

.device-card {
  position: relative;
  z-index: 2;
  width: min(640px, 100%);
  height: 650px;
  padding: 19px 20px 17px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.device-chrome {
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: .08em;
}

.chrome-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.chrome-code {
  color: var(--color-subtle);
}

.flag-strip {
  height: 67px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 7px;
  margin-top: 9px;
}

.flag-route {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
}

.flag-route svg {
  width: 28px;
  height: 20px;
  flex: 0 0 auto;
  border-radius: var(--radius-xs);
}

.flag-name,
.flag-code {
  display: block;
  white-space: nowrap;
}

.flag-name {
  font-size: 10px;
  font-weight: 780;
}

.flag-code {
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: 7px;
}

.processor-frame {
  height: 415px;
  margin-top: 9px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-panel-soft);
  background-image: linear-gradient(var(--color-grid) 1px, transparent 1px), linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 22px 22px;
}

.processor-svg {
  width: 100%;
  height: 100%;
}

.chip-board {
  fill: var(--color-text);
}

.chip-inner,
.core-node {
  fill: var(--color-panel);
}

.chip-trace {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 10 13;
  filter: drop-shadow(0 0 7px var(--color-bus-glow));
  animation: bus-flow 3.2s linear infinite;
}

.chip-trace.alt {
  stroke: var(--color-success);
  animation-direction: reverse;
  animation-duration: 4.2s;
}

.core-node {
  stroke: var(--color-border);
  stroke-width: 2;
}

.core-node.current {
  fill: var(--color-warn-soft);
  stroke: var(--color-warn);
  stroke-width: 3;
  transform-box: fill-box;
  transform-origin: center;
  animation: core-pulse 2.8s ease-in-out infinite;
}

.chip-title,
.chip-sub,
.chip-silk {
  font-family: var(--font-mono);
}

.chip-title {
  fill: var(--color-text);
  font-size: 10px;
  font-weight: 800;
}

.chip-sub {
  fill: var(--color-muted);
  font-size: 7px;
}

.chip-silk {
  fill: var(--color-subtle);
  font-size: 6px;
  letter-spacing: .1em;
}

.chip-pin {
  fill: var(--color-border);
}

.platform-strip {
  position: relative;
  height: 78px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-top: 8px;
  padding-top: 19px;
}

.platform-strip::before {
  position: absolute;
  top: 0;
  right: 10%;
  left: 10%;
  height: 1px;
  background: var(--gradient-brand);
  content: "";
}

.device-platform {
  position: relative;
  min-width: 0;
  height: 49px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-size: 9px;
  font-weight: 750;
}

.device-platform::before {
  position: absolute;
  top: -20px;
  left: 50%;
  width: 1px;
  height: 19px;
  background: var(--color-accent);
  content: "";
}

.device-platform::after {
  position: absolute;
  top: -23px;
  left: calc(50% - 3px);
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  content: "";
}

.device-platform svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  color: var(--color-accent-dark);
}

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

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

.swatch-color {
  height: 90px;
}

.swatch-color.bg { background: var(--color-bg); }
.swatch-color.panel { background: var(--color-panel); }
.swatch-color.soft { background: var(--color-panel-soft); }
.swatch-color.accent { background: var(--color-accent); }
.swatch-color.accent-dark { background: var(--color-accent-dark); }
.swatch-color.success { background: var(--color-success); }
.swatch-color.warn { background: var(--color-warn); }
.swatch-color.error { background: var(--color-error); }
.swatch-color.text { background: var(--color-text); }
.swatch-color.muted { background: var(--color-muted); }

.swatch code {
  display: block;
  padding: 12px;
  background: var(--color-panel);
}

@keyframes bus-flow {
  to { stroke-dashoffset: -46; }
}

@keyframes core-pulse {
  50% { transform: scale(1.025); }
}

@media (max-width: 1050px) {
  .pricing-grid,
  .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .hero-preview-inner {
    grid-template-columns: minmax(390px, .8fr) minmax(520px, 1.2fr);
    gap: 24px;
  }

  .device-card {
    width: 550px;
  }
}

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

  .plan-card.is-featured {
    transform: none;
  }

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

  .hero-preview {
    min-height: auto;
    overflow: visible;
  }

  .hero-preview-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 38px;
    padding-top: 52px;
    padding-bottom: 90px;
  }

  .visual-stage {
    height: auto;
  }

  .visual-bars {
    inset: 18px -8px 18px 30px;
  }

  .device-card {
    width: 100%;
    height: auto;
  }

  .processor-frame {
    height: 330px;
  }

  .flag-meta {
    display: none;
  }

  .flag-route {
    justify-content: center;
  }

  .float-cta {
    right: 14px;
    bottom: 14px;
  }
}

@media (max-width: 480px) {
  .platform-grid,
  .stat-grid,
  .swatch-grid {
    grid-template-columns: 1fr;
  }

  .device-platform {
    gap: 2px;
    font-size: 7px;
  }

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