.badge,
.tag,
.status-badge {
  display: inline-flex;
  max-width: 100%;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 4px 10px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 620;
  line-height: 1.35;
}

.badge::before,
.tag::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-action);
  content: "";
}

.badge--recommended {
  border-color: var(--color-action);
  background: var(--color-action);
  color: var(--color-panel);
}

.badge--recommended::before {
  background: var(--color-panel);
}

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

.badge--retired {
  border-color: var(--color-error);
  color: var(--color-error);
}

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

.feature-browser {
  display: grid;
  grid-template-columns: minmax(220px, .36fr) minmax(0, 1fr);
  gap: 24px;
}

.tab-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tab-button {
  display: grid;
  width: 100%;
  min-height: 54px;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid transparent;
  border-left: 2px solid transparent;
  border-radius: var(--radius-small);
  background: transparent;
  color: var(--color-muted);
  text-align: left;
}

.tab-button:hover {
  background: var(--color-soft);
  color: var(--color-ink);
}

.tab-button[aria-selected="true"],
.tab-button.is-active {
  border-color: var(--color-line);
  border-left-color: var(--color-action);
  background: var(--color-panel);
  color: var(--color-ink);
  font-weight: 650;
}

.tab-index {
  display: inline-flex;
  min-width: 34px;
  min-height: 24px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  font: 11px/1 var(--font-mono);
}

.tab-panel {
  min-height: 380px;
  padding: 0;
  overflow: clip;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}

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

.tab-panel__visual {
  min-height: 220px;
  padding: 28px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-page);
  color: var(--color-ink);
}

.tab-panel__copy {
  padding: 28px;
}

.tab-panel__copy p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--color-muted);
}

.setting-demo {
  max-width: 620px;
  margin-inline: auto;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
}

.setting-row {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--color-line);
}

.setting-row:last-child {
  border-bottom: 0;
}

.demo-toggle {
  position: relative;
  width: 34px;
  height: 20px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-line);
}

.demo-toggle::after {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  box-shadow: var(--shadow-knob);
  content: "";
}

.demo-toggle.is-on {
  background: var(--color-action);
}

.demo-toggle.is-on::after {
  transform: translateX(14px);
}

.toc {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  max-width: 100%;
  gap: 8px;
  padding: 8px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  box-shadow: var(--shadow-menu);
  scrollbar-width: thin;
}

.toc a {
  display: inline-flex;
  min-height: 40px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border-radius: var(--radius-small);
  color: var(--color-muted);
  white-space: nowrap;
}

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

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

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

.faq-item summary {
  position: relative;
  padding: 20px 40px 20px 0;
  cursor: pointer;
  color: var(--color-ink);
  font-weight: 650;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  top: 20px;
  right: 5px;
  content: "+";
  color: var(--color-muted);
  font: 20px/1 var(--font-mono);
}

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

.faq-answer {
  max-width: 780px;
  padding: 0 42px 20px 0;
  color: var(--color-muted);
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.term-card {
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
}

.term-card dt {
  margin-bottom: 8px;
  font-weight: 720;
}

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

.term-card code {
  font-size: 12px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.download-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}

.download-card__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.download-card__head img {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}

.download-card__title {
  flex: 1;
}

.download-card__title h3 {
  margin-bottom: 5px;
  font-size: 21px;
}

.download-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.download-card__body {
  flex: 1;
  margin-top: 18px;
  color: var(--color-muted);
}

.download-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.download-card [data-version]:empty {
  display: none;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.post-card {
  display: flex;
  min-width: 0;
  min-height: 100%;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.post-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.post-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 16px;
  color: var(--color-muted);
  font: 12px/1.5 var(--font-mono);
}

.post-card h3 {
  font-size: 20px;
}

.post-card p {
  flex: 1;
  color: var(--color-muted);
}

.post-card__link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  font-weight: 650;
}

.callout {
  position: relative;
  margin: 24px 0;
  padding: 18px 20px 18px 24px;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-action);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  background: var(--color-panel);
  color: var(--color-ink);
}

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

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

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

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

.dl-fab {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 80;
  display: grid;
  max-width: min(320px, calc(100vw - 36px));
  min-height: 64px;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  box-shadow: var(--shadow-menu);
}

.dl-fab:hover {
  border-color: var(--color-muted);
  color: var(--color-ink);
}

.dl-fab__icon {
  display: inline-flex;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-small);
  background: var(--color-action);
  color: var(--color-panel);
}

.dl-fab__icon svg {
  width: 18px;
  height: 18px;
}

.dl-fab__copy {
  line-height: 1.3;
}

.dl-fab__copy strong,
.dl-fab__copy small {
  display: block;
}

.dl-fab__copy small {
  margin-top: 3px;
  color: var(--color-muted);
}

.article-download {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  margin-top: 48px;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}

.article-download p {
  margin: 6px 0 0;
  color: var(--color-muted);
}

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

.hero {
  min-height: calc(100svh - var(--header-height) - 48px);
  display: grid;
  align-content: center;
  padding-top: 40px;
  padding-bottom: 56px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 45fr) minmax(0, 55fr);
  align-items: center;
  gap: 64px;
}

.hero__title {
  margin: 26px 0 20px;
}

.hero__title span {
  display: block;
}

.hero__title .is-quiet {
  color: var(--color-muted);
}

.hero__lead {
  max-width: 36em;
  margin: 0;
  color: var(--color-muted);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 28px;
}

.platform-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--color-line);
}

.platform-row__label {
  color: var(--color-muted);
  font: 11px/1.4 var(--font-mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.platform-link {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  gap: 7px;
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 550;
}

.platform-link svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  color: var(--color-muted);
}

.platform-link:hover svg {
  color: var(--color-ink);
}

.wizard {
  overflow: clip;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}

.wizard__bar {
  display: grid;
  height: 44px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding-inline: 16px;
  border-bottom: 1px solid var(--color-line);
}

.wizard__dots {
  display: flex;
  gap: 6px;
}

.wizard__dots i {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-line);
}

.wizard__title {
  font-size: 13px;
  font-weight: 650;
}

.wizard__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.wizard__col {
  padding: 22px;
}

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

.wizard-field {
  margin-bottom: 22px;
}

.wizard-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-muted);
  font-size: 12px;
}

.wizard-input {
  display: flex;
  height: 38px;
  align-items: center;
  gap: 8px;
  padding-inline: 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  font: 13px/1 var(--font-mono);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  padding: 3px;
  border-radius: var(--radius-small);
  background: var(--color-soft);
  color: var(--color-muted);
}

.segmented span {
  padding: 6px 2px;
  border-radius: var(--radius-small);
  text-align: center;
  font-size: 13px;
}

.segmented .is-on {
  background: var(--color-action);
  color: var(--color-panel);
  font-weight: 650;
}

.wizard-switches,
.strategy-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.wizard-switches li {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--color-line);
  font-size: 14px;
}

.wizard-switches li:last-child {
  border-bottom: 1px solid var(--color-line);
}

.wizard-foot {
  margin-top: 18px;
  color: var(--color-muted);
  font: 12px/1.5 var(--font-mono);
}

.strategy-list li {
  display: grid;
  min-height: 48px;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--color-line);
}

.strategy-list li:last-child {
  border-bottom: 1px solid var(--color-line);
}

.strategy-name {
  font-size: 14px;
  font-weight: 550;
}

.strategy-type {
  color: var(--color-muted);
  font: 11px/1.4 var(--font-mono);
}

.strategy-arrow {
  color: var(--color-muted);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

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

.swatch__color {
  height: 80px;
  border-bottom: 1px solid var(--color-line);
}

.swatch__meta {
  padding: 12px;
  font: 12px/1.55 var(--font-mono);
}

.swatch--page .swatch__color { background: var(--color-page); }
.swatch--panel .swatch__color { background: var(--color-panel); }
.swatch--soft .swatch__color { background: var(--color-soft); }
.swatch--line .swatch__color { background: var(--color-line); }
.swatch--ink .swatch__color { background: var(--color-ink); }
.swatch--muted .swatch__color { background: var(--color-muted); }
.swatch--success .swatch__color { background: var(--color-success); }
.swatch--warning .swatch__color { background: var(--color-warning); }
.swatch--error .swatch__color { background: var(--color-error); }

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

  .hero {
    min-height: auto;
  }

  .tab-list {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .tab-button {
    width: auto;
    min-width: max-content;
    border-left-width: 1px;
  }

  .tab-button[aria-selected="true"],
  .tab-button.is-active {
    border-left-color: var(--color-line);
    border-bottom: 2px solid var(--color-action);
  }

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

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

@media (max-width: 640px) {
  .hero {
    padding-top: 36px;
    padding-bottom: 48px;
  }

  .hero__grid {
    gap: 38px;
  }

  .hero__title {
    margin-top: 20px;
  }

  .hero__actions .button {
    width: 100%;
  }

  .platform-row {
    align-items: center;
    flex-direction: row;
    gap: 6px 14px;
  }

  .platform-row__label {
    width: 100%;
  }

  .wizard__body {
    grid-template-columns: 1fr;
  }

  .wizard__col + .wizard__col {
    border-top: 1px solid var(--color-line);
    border-left: 0;
  }

  .wizard__col {
    padding: 18px;
  }

  .download-grid,
  .post-grid,
  .glossary-grid,
  .palette-grid {
    grid-template-columns: 1fr;
  }

  .tab-panel__visual,
  .tab-panel__copy {
    padding: 20px;
  }

  .article-download {
    grid-template-columns: 1fr;
  }

  .article-download .button {
    width: 100%;
  }

  .dl-fab {
    right: 12px;
    bottom: 12px;
    left: 12px;
    max-width: none;
  }
}