.tabs {
  min-width: 0;
}

.tab-shell {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr);
  gap: 24px;
}

.tab-list {
  display: grid;
  align-content: start;
  gap: 8px;
}

.tab-list[role="tablist"] {
  min-width: 0;
}

.tab-button {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  overflow: hidden;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-ink);
  padding: 11px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}

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

.tab-button[aria-selected="true"],
.tab-button.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-ink);
  font-weight: 700;
}

.tab-progress {
  position: absolute;
  right: 14px;
  bottom: 7px;
  left: 14px;
  height: 2px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: var(--color-accent-deep);
  opacity: 0;
}

.tab-progress::after {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--color-ink);
  content: "";
  transform: translateX(-100%);
}

.tab-button[aria-selected="true"] .tab-progress {
  opacity: 1;
}

.tab-button[aria-selected="true"] .tab-progress::after {
  animation: tab-progress 7s linear forwards;
}

.tabs.is-paused .tab-progress {
  display: none;
}

@keyframes tab-progress {
  to {
    transform: translateX(0);
  }
}

.tab-panel {
  min-height: 310px;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-large);
  background: var(--color-paper-panel);
  color: var(--color-ink);
  padding: clamp(24px, 4vw, 48px);
}

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

.tab-panel p {
  max-width: 760px;
  color: var(--color-ink-muted);
}

.example-line {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-medium);
  background: var(--color-ink);
  color: var(--color-text);
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}

.toc-tabs a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-ink);
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.toc-tabs a:hover {
  border-color: var(--color-ink);
  background: var(--color-accent);
}

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

.faq-item {
  overflow: clip;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-medium);
  background: var(--color-white);
  color: var(--color-ink);
}

.faq-item summary {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  color: var(--color-ink);
  font-weight: 750;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  flex-shrink: 0;
  color: var(--color-ink);
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
}

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

.faq-answer {
  border-top: 1px solid var(--color-paper-border);
  padding: 16px 18px 18px;
  color: var(--color-ink-muted);
}

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

.term-card {
  position: relative;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-large);
  background: var(--color-white);
  color: var(--color-ink);
  padding: 24px;
}

.term-card::before {
  display: block;
  width: 42px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  margin-bottom: 20px;
  content: "";
}

.term-card dt {
  margin-bottom: 9px;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
}

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

.download-card {
  display: grid;
  min-width: 0;
  align-content: start;
  gap: 18px;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-large);
  background: var(--color-white);
  color: var(--color-ink);
  padding: 24px;
}

.download-card.is-featured {
  border-color: var(--color-accent-deep);
  box-shadow: inset 0 5px 0 var(--color-accent);
}

.download-card-head {
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

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

.download-card-title {
  margin-bottom: 4px;
  font-size: 21px;
}

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

.download-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

.version-slot:empty {
  display: none;
}

.badge-row {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.badge {
  display: inline-flex;
  max-width: 100%;
  min-height: 27px;
  align-items: center;
  gap: 6px;
  overflow: hidden;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-pill);
  background: var(--color-paper-soft);
  color: var(--color-ink);
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
}

.badge-featured {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-ink);
}

.badge-recommended {
  border-color: var(--color-success);
  background: var(--color-white);
  color: var(--color-ink);
}

.badge-archived {
  border-color: var(--color-error);
  background: var(--color-white);
  color: var(--color-ink);
}

.badge-dark {
  border-color: var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
}

.post-card {
  display: grid;
  min-width: 0;
  align-content: start;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-large);
  background: var(--color-white);
  color: var(--color-ink);
  padding: 26px;
  transition: transform var(--ease-fast), border-color var(--ease-fast);
}

.post-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-ink);
}

.post-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 18px;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

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

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

.post-card-link {
  align-self: end;
  margin-top: 12px;
  color: var(--color-ink);
  font-weight: 750;
}

.callout {
  position: relative;
  overflow: clip;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-medium);
  background: var(--color-paper-soft);
  color: var(--color-ink);
  padding: 20px 22px 20px 28px;
}

.callout::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 6px;
  background: var(--color-accent);
  content: "";
}

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

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

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

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

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

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

.article-download-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-large);
  background: var(--color-paper-soft);
  color: var(--color-ink);
  padding: 24px;
}

.article-download-card h2,
.article-download-card h3 {
  margin-bottom: 7px;
}

.article-download-card p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.dl-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 48;
  display: flex;
  max-width: min(330px, calc(100vw - 32px));
  align-items: center;
  gap: 12px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-medium);
  background: var(--color-accent);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
  padding: 12px 16px;
  font-weight: 750;
}

.dl-fab-icon {
  display: grid;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  place-items: center;
  border-radius: var(--radius-small);
  background: var(--color-ink);
  color: var(--color-accent);
}

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

.dl-fab small {
  display: block;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
}

.hero-preview {
  position: relative;
  min-height: calc(100svh - var(--header-height) - 64px);
  overflow-x: clip;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--color-grid) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-grid) 1px, var(--color-transparent) 1px);
  background-size: 72px 72px;
  color: var(--color-text);
  padding-top: 40px;
  padding-bottom: 48px;
}

.hero-preview-inner {
  display: grid;
  min-height: calc(100svh - var(--header-height) - 152px);
  grid-template-columns: minmax(0, 480px) minmax(0, 1fr);
  align-content: center;
  align-items: center;
  gap: 64px;
}

.hero-copy .lead {
  max-width: 440px;
  margin-bottom: 28px;
  font-size: 16px;
}

.hero-copy .button-row {
  margin-bottom: 22px;
}

.hero-rig {
  position: relative;
  min-width: 0;
}

.hero-stack {
  position: relative;
  height: 472px;
}

.hero-glow {
  position: absolute;
  bottom: -40px;
  left: -70px;
  z-index: 0;
  width: 340px;
  height: 300px;
  background:
    radial-gradient(closest-side at 38% 62%, var(--color-glow-pink), var(--color-transparent) 70%),
    radial-gradient(closest-side at 30% 80%, var(--color-glow-orange), var(--color-transparent) 65%),
    radial-gradient(closest-side at 62% 40%, var(--color-glow-violet), var(--color-transparent) 70%);
  filter: blur(52px);
  opacity: 0.5;
  pointer-events: none;
}

.trace-card {
  position: absolute;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
}

.trace-main {
  top: 44px;
  left: 0;
  z-index: 1;
  width: 436px;
  overflow: hidden;
}

.trace-yaml {
  top: 0;
  right: 0;
  z-index: 2;
  width: 252px;
  box-shadow: var(--shadow-soft);
}

.trace-faq {
  right: 16px;
  bottom: 0;
  z-index: 3;
  width: 268px;
  box-shadow: var(--shadow-soft);
}

.window-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--color-border);
  padding: 12px 16px;
}

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

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

.window-dot-warning {
  background: var(--color-warning);
}

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

.window-title {
  margin-left: 6px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.request-slot {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  padding: 13px 16px 11px;
}

.request-label {
  flex-shrink: 0;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
}

.request-chip {
  border: 1px solid var(--color-accent-deep);
  border-radius: var(--radius-pill);
  background: var(--color-chip);
  color: var(--color-accent);
  padding: 3px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  animation: request-drop 9s ease-in-out infinite;
}

@keyframes request-drop {
  0% {
    opacity: 0;
    transform: translateY(-30px);
  }
  6%,
  86% {
    opacity: 1;
    transform: translateY(0);
  }
  93%,
  100% {
    opacity: 0;
    transform: translateY(-30px);
  }
}

.trace-list {
  position: relative;
  padding-top: 8px;
}

.trace-row {
  display: flex;
  height: 34px;
  align-items: center;
  padding-inline: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  white-space: nowrap;
}

.rule-type {
  color: var(--color-text);
}

.rule-value {
  color: var(--color-text-muted);
}

.rule-proxy {
  color: var(--color-accent);
}

.rule-direct {
  color: var(--color-success);
}

.trace-scan {
  position: absolute;
  top: 8px;
  right: 8px;
  left: 8px;
  height: 34px;
  border-radius: var(--radius-small);
  background: var(--color-scan);
  opacity: 0;
  animation: trace-scan 9s ease-in-out infinite;
  pointer-events: none;
}

@keyframes trace-scan {
  0%,
  8% {
    opacity: 0;
    transform: translateY(0);
  }
  12% {
    opacity: 1;
    transform: translateY(0);
  }
  20% {
    transform: translateY(34px);
  }
  28% {
    transform: translateY(68px);
  }
  36% {
    opacity: 1;
    transform: translateY(102px);
  }
  42%,
  100% {
    opacity: 0;
    transform: translateY(102px);
  }
}

.trace-hit {
  position: absolute;
  top: 110px;
  right: 0;
  left: 0;
  display: flex;
  height: 34px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--color-accent);
  color: var(--color-ink);
  padding-inline: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  white-space: nowrap;
  opacity: 0;
  animation: trace-hit 9s ease-in-out infinite;
  pointer-events: none;
}

@keyframes trace-hit {
  0%,
  38% {
    opacity: 0;
  }
  44%,
  84% {
    opacity: 1;
  }
  91%,
  100% {
    opacity: 0;
  }
}

.hit-badge {
  flex-shrink: 0;
  border-radius: 5px;
  background: var(--color-ink);
  color: var(--color-accent);
  padding: 2px 8px;
  font-size: 10px;
  letter-spacing: 0.14em;
}

.trace-note {
  margin: 8px 0 0;
  border-top: 1px solid var(--color-border);
  padding: 10px 16px 14px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.yaml-code {
  overflow: hidden;
  padding: 12px 16px 14px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.75;
  white-space: pre;
}

.yaml-key {
  color: var(--color-text);
}

.yaml-string {
  color: var(--color-accent);
}

.trace-faq h3 {
  margin: 0;
  padding: 14px 16px 5px;
  font-size: 13px;
}

.trace-faq-links {
  display: grid;
  padding: 4px 8px 12px;
}

.trace-faq-links a {
  display: flex;
  min-height: 36px;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-radius: var(--radius-small);
  padding: 7px 8px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.trace-faq-links a:hover {
  background: var(--color-panel-raised);
  color: var(--color-accent);
}

.hero-under {
  display: grid;
  gap: 13px;
  margin-top: 26px;
}

.platform-row,
.flag-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 20px;
}

.row-caption {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
}

.platform-link,
.flag-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-size: 12px;
}

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

.platform-link svg {
  width: 16px;
  height: 16px;
}

.flag-ring {
  display: grid;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
}

.flag-ring svg {
  width: 20px;
  height: 20px;
}

.flag-white {
  fill: var(--color-white);
}

.flag-red {
  fill: var(--color-flag-red);
}

.flag-navy {
  fill: var(--color-flag-navy);
}

.flag-blue {
  fill: var(--color-flag-blue);
}

.flag-green {
  fill: var(--color-flag-green);
}

.preview-section {
  padding-top: 96px;
  padding-bottom: 96px;
}

.preview-heading {
  max-width: 760px;
  margin-bottom: 44px;
}

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

.swatch {
  overflow: hidden;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-medium);
  background: var(--color-white);
  color: var(--color-ink);
}

.swatch-color {
  height: 92px;
}

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

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

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

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

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

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

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

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

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

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

.swatch-label {
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.type-specimen {
  display: grid;
  gap: 28px;
  border: 1px solid var(--color-paper-border);
  border-radius: var(--radius-large);
  background: var(--color-white);
  color: var(--color-ink);
  padding: clamp(24px, 5vw, 52px);
}

.type-specimen p {
  margin-bottom: 0;
}

.preview-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

@media (max-width: 1120px) {
  .hero-preview {
    min-height: auto;
  }

  .hero-preview-inner {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .hero-stack {
    max-width: 620px;
  }

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

@media (max-width: 760px) {
  .tab-shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .tab-list {
    display: flex;
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .tab-button {
    width: auto;
    min-width: max-content;
  }

  .article-download-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-stack {
    height: auto;
    min-height: 600px;
  }

  .trace-main {
    top: 20px;
    width: min(100%, 436px);
  }

  .trace-yaml {
    top: 360px;
    right: auto;
    left: 8px;
    width: min(252px, calc(100% - 16px));
  }

  .trace-faq {
    right: 0;
    bottom: 0;
    width: min(268px, calc(100% - 24px));
  }

  .hero-glow {
    right: 0;
    left: auto;
  }

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

@media (max-width: 480px) {
  .trace-main {
    font-size: 11px;
  }

  .trace-row,
  .trace-hit {
    padding-inline: 10px;
    font-size: 10.4px;
  }

  .request-slot {
    align-items: flex-start;
    flex-direction: column;
  }

  .request-chip {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .trace-yaml {
    top: 378px;
  }

  .trace-faq {
    display: none;
  }

  .hero-stack {
    min-height: 565px;
  }

  .hero-under {
    margin-top: 8px;
  }

  .platform-row,
  .flag-row {
    gap: 10px 14px;
  }

  .row-caption {
    width: 100%;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .request-chip,
  .trace-scan,
  .trace-hit,
  .tab-button[aria-selected="true"] .tab-progress::after {
    animation: none;
  }

  .request-chip {
    opacity: 1;
    transform: none;
  }

  .trace-scan {
    opacity: 0;
  }

  .trace-hit {
    opacity: 1;
  }

  .post-card:hover {
    transform: none;
  }
}