.chips,
.badge-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.chip,
.badge,
.status-badge {
  display: inline-flex;
  max-width: 100%;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  padding-inline: 13px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.2;
}

.chip strong {
  color: var(--color-text);
  font-weight: 500;
}

.badge--accent {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.badge--recommended,
.badge--featured {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-bg);
}

.badge--retired {
  border-color: var(--color-border);
  background: var(--color-panel-strong);
  color: var(--color-muted);
}

.badge--success {
  border-color: var(--color-success);
  background: var(--color-success-soft);
  color: var(--color-success);
}

.badge--warn {
  border-color: var(--color-warn);
  background: var(--color-warn-soft);
  color: var(--color-warn);
}

.hero-preview {
  padding-top: 44px;
  overflow-x: clip;
  text-align: center;
}

.hero-preview h1 {
  max-width: 1000px;
  margin: 22px auto 0;
}

.hero-title-muted {
  display: block;
  color: var(--color-muted);
}

.hero-lead {
  max-width: 760px;
  margin: 18px auto 0;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.65;
}

.hero-lead strong {
  color: var(--color-text);
  font-weight: 500;
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.platform-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 34px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.platform-row a,
.platform-row li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 13px;
}

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

.fact-band {
  margin-top: 36px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.fact-band__inner {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
}

.fact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-inline: 28px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12.5px;
  white-space: nowrap;
}

.fact + .fact {
  border-left: 1px solid var(--color-border);
}

.fact strong {
  color: var(--color-text);
  font-weight: 500;
}

.fact__separator {
  color: var(--color-dot);
}

.hero-stage {
  margin-top: 36px;
}

.workbench {
  position: relative;
  height: 344px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-bottom: 0;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--color-panel);
  color: var(--color-text);
}

.workbench-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  height: 56px;
  border-bottom: 1px solid var(--color-border);
}

.workbench-tab {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 15px;
}

.workbench-tab + .workbench-tab {
  border-left: 1px solid var(--color-border);
}

.workbench-tab[aria-selected="true"] {
  background: var(--color-bg);
  color: var(--color-text);
  font-weight: 500;
}

.workbench-tab[aria-selected="true"]::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--color-accent);
  content: "";
}

.workbench-body {
  padding: 40px 48px 0;
}

.client-window {
  display: flex;
  height: 340px;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-fine), var(--shadow-layer);
}

.client-window__title {
  display: flex;
  height: 42px;
  flex-shrink: 0;
  align-items: center;
  gap: 14px;
  padding-inline: 16px;
  border-bottom: 1px solid var(--color-border);
}

.window-dots {
  display: flex;
  flex-shrink: 0;
  gap: 7px;
}

.window-dots span {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-dot);
}

.window-name {
  font-size: 13px;
  font-weight: 500;
}

.window-path {
  margin-left: auto;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.client-window__main {
  display: flex;
  flex: 1;
  min-height: 0;
}

.client-rail {
  display: flex;
  width: 56px;
  flex-shrink: 0;
  align-items: center;
  flex-direction: column;
  gap: 6px;
  padding-top: 12px;
  border-right: 1px solid var(--color-border);
}

.client-rail span {
  display: grid;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  place-items: center;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
}

.client-rail span.is-active {
  background: var(--color-panel);
  color: var(--color-text);
}

.client-rail svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.client-pane {
  display: grid;
  min-width: 0;
  flex: 1;
  grid-template-columns: 1.15fr 1fr;
  gap: 28px;
  padding: 16px 22px 0;
}

.setting-list {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.setting-list__head {
  padding: 2px 0 10px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.setting-row {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 13.5px;
}

.setting-control {
  display: inline-flex;
  min-height: 28px;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
  padding-inline: 12px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 12.5px;
}

.setting-control svg {
  width: 12px;
  height: 12px;
  color: var(--color-muted);
}

.static-toggle {
  position: relative;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-strong);
}

.static-toggle::after {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  content: "";
}

.code-card {
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
}

.code-card__head {
  display: flex;
  height: 34px;
  align-items: center;
  justify-content: space-between;
  padding-inline: 14px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.code-card pre {
  margin: 0;
  padding: 12px 14px 14px;
  border: 0;
  border-radius: 0;
  background: var(--color-panel);
  color: var(--color-text);
  font-size: 12px;
  line-height: 1.7;
}

.code-key {
  color: var(--color-accent);
}

.code-punctuation {
  color: var(--color-muted);
}

.tabs {
  min-width: 0;
}

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

.tab-button {
  min-height: 42px;
  flex: 1 0 auto;
  padding-inline: 20px;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-muted);
  white-space: nowrap;
}

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

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

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

.toc {
  position: sticky;
  top: 18px;
  z-index: 10;
  display: flex;
  max-width: 100%;
  gap: 8px;
  overflow-x: auto;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-fine);
  scrollbar-width: thin;
}

.toc a {
  display: inline-flex;
  min-height: 38px;
  flex: 0 0 auto;
  align-items: center;
  padding-inline: 15px;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  white-space: nowrap;
}

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

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  overflow: clip;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text);
}

.faq-item summary {
  display: flex;
  min-height: 66px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  color: var(--color-text);
  cursor: pointer;
  font-weight: 500;
  list-style: none;
}

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

.faq-item summary::after {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border-right: 1.5px solid var(--color-muted);
  border-bottom: 1.5px solid var(--color-muted);
  content: "";
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: rotate(225deg);
}

.faq-item__answer {
  padding: 0 22px 22px;
  color: var(--color-muted);
}

.term-card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text);
}

.term-card::before {
  position: absolute;
  top: 26px;
  left: 0;
  width: 3px;
  height: 28px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  background: var(--color-accent);
  content: "";
}

.term-card dt {
  margin-bottom: 9px;
  font-size: 20px;
  font-weight: 500;
}

.term-card dd {
  margin: 0;
  color: var(--color-muted);
}

.download-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 22px;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  color: var(--color-text);
}

.download-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.download-card__title {
  margin: 0;
  font-size: 25px;
  font-weight: 500;
}

.download-card__meta {
  color: var(--color-muted);
  font-size: 13px;
}

.download-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.article-card {
  display: flex;
  height: 100%;
  min-width: 0;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text);
  transition:
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

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

.article-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.article-card__title {
  margin-bottom: 12px;
  font-size: 22px;
  font-weight: 500;
}

.article-card__summary {
  flex: 1;
  color: var(--color-muted);
}

.article-card__link {
  margin-top: 20px;
  color: var(--color-accent);
  font-weight: 500;
}

.callout {
  position: relative;
  padding: 22px 24px 22px 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  color: var(--color-text);
}

.callout::before {
  position: absolute;
  top: 20px;
  bottom: 20px;
  left: 12px;
  width: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.callout--success {
  border-color: var(--color-success);
  background: var(--color-success-soft);
  color: var(--color-text);
}

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

.callout--warning {
  border-color: var(--color-warn);
  background: var(--color-warn-soft);
  color: var(--color-text);
}

.callout--warning::before {
  background: var(--color-warn);
}

.callout__title {
  margin-bottom: 5px;
  font-weight: 600;
}

.callout p {
  color: var(--color-muted);
}

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

.data-table table {
  min-width: 680px;
  margin: 0;
}

.download-guide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 56px;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  color: var(--color-text);
}

.download-guide__copy h2,
.download-guide__copy h3 {
  margin-bottom: 8px;
  font-size: 24px;
  font-weight: 500;
}

.download-guide__copy p {
  color: var(--color-muted);
}

.dl-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 45;
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 9px;
  padding-inline: 18px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-bg);
  box-shadow: var(--shadow-fine), var(--shadow-layer);
  font-size: 14px;
  font-weight: 600;
}

.dl-fab:hover {
  background: var(--color-accent-dark);
  color: var(--color-bg);
}

.dl-fab svg {
  width: 17px;
  height: 17px;
}

.preview-block {
  padding-top: 88px;
  padding-bottom: 88px;
  border-top: 1px solid var(--color-border);
}

.preview-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.preview-heading p {
  color: var(--color-muted);
}

.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-lg);
  background: var(--color-bg);
  color: var(--color-text);
}

.swatch__color {
  height: 92px;
  border-bottom: 1px solid var(--color-border);
}

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

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

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

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

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

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

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

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

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

.swatch__color--warn {
  background: var(--color-warn);
}

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

.swatch__label {
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.type-sample {
  padding-block: 22px;
  border-bottom: 1px solid var(--color-border);
}

.type-sample:last-child {
  border-bottom: 0;
}

.type-sample__label {
  margin-bottom: 8px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

@media (max-width: 1100px) {
  .fact {
    padding-inline: 16px;
  }

  .client-pane {
    grid-template-columns: 1fr;
  }

  .code-card {
    display: none;
  }

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

@media (max-width: 760px) {
  .hero-preview h1 {
    font-size: clamp(24px, 7vw, 30px);
  }

  .workbench-tabs {
    height: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workbench-tab {
    min-height: 48px;
  }

  .workbench-tab:nth-child(n + 3) {
    border-top: 1px solid var(--color-border);
  }

  .workbench-tab:nth-child(3) {
    border-left: 0;
  }

  .workbench-body {
    padding: 24px 16px 0;
  }

  .fact-band__inner {
    flex-wrap: wrap;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .fact + .fact {
    border-left: 0;
  }

  .platform-row {
    gap: 18px;
  }

  .download-guide {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .hero-preview {
    padding-top: 30px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-actions {
    gap: 8px;
  }

  .workbench,
  .client-window {
    height: auto;
  }

  .window-path {
    display: none;
  }

  .client-rail {
    width: 44px;
  }

  .client-pane {
    padding-inline: 14px;
  }

  .setting-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
    padding-block: 10px;
  }

  .setting-control,
  .static-toggle {
    align-self: flex-end;
  }

  .tab-list {
    border-radius: var(--radius-lg);
  }

  .toc {
    top: 8px;
    border-radius: var(--radius-lg);
  }

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

  .preview-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .dl-fab {
    right: 16px;
    bottom: 16px;
  }
}