:root {
  --ai-console-nav-width: 112px;
  --ai-tool-index-width: 190px;
  --ai-grid-gap: 18px;
}

.ai-hero {
  position: relative;
  overflow: hidden;
  padding-top: 58px;
  padding-bottom: 66px;
}

.ai-hero::before {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--color-border) 1px, transparent 1px), linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  opacity: 0.32;
  pointer-events: none;
}

.ai-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 46fr) minmax(0, 54fr);
  align-items: center;
  gap: 48px;
}

.ai-hero-copy {
  position: relative;
  z-index: 2;
}

.ai-hero-copy h1 {
  max-width: 8.8em;
}

.ai-hero-copy .lead {
  max-width: 38em;
}

.ai-workspace {
  position: relative;
  min-height: 480px;
  padding: 42px 26px 32px;
}

.ai-workspace-decor {
  position: absolute;
  top: 0;
  right: 0;
  width: 72%;
  height: 68%;
  border-radius: var(--radius-md);
  background-image: radial-gradient(var(--color-accent) 1px, transparent 1px);
  background-size: 14px 14px;
  opacity: 0.24;
}

.ai-workspace::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 76%;
  height: 64%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-deep);
  content: "";
}

.ai-console {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.ai-console-head {
  display: flex;
  min-height: 50px;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--color-border);
  padding: 10px 18px;
}

.ai-console-head strong {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 850;
}

.ai-console-mode {
  margin-left: auto;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.ai-console-body {
  display: flex;
  min-height: 330px;
}

.ai-console-nav {
  display: flex;
  width: var(--ai-console-nav-width);
  flex: 0 0 auto;
  flex-direction: column;
  gap: 5px;
  border-right: 1px solid var(--color-border);
  padding: 16px 10px;
}

.ai-console-nav-title {
  margin-bottom: 4px;
  padding-inline: 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.ai-console-nav span:not(.ai-console-nav-title) {
  border-left: 2px solid transparent;
  border-radius: var(--radius-xs);
  padding: 8px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.ai-console-nav span.is-active {
  border-left-color: var(--color-accent);
  background: var(--color-panel-deep);
  color: var(--color-accent);
  font-weight: 850;
}

.ai-console-main {
  flex: 1;
  min-width: 0;
}

.ai-check-row {
  display: grid;
  min-height: 55px;
  grid-template-columns: auto minmax(100px, 1fr) minmax(82px, auto) auto;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  padding: 10px 17px;
}

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

.ai-check-row.is-current {
  background: var(--color-panel-deep);
}

.ai-check-tool {
  overflow: hidden;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ai-check-rule {
  border-radius: var(--radius-xs);
  background: var(--color-panel-deep);
  padding: 4px 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
  white-space: nowrap;
}

.ai-check-row.is-current .ai-check-rule {
  background: var(--color-panel);
}

.ai-check-mark {
  color: var(--color-success);
  font-weight: 900;
}

.ai-console-foot {
  display: flex;
  min-height: 40px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--color-border);
  padding: 8px 18px;
  color: var(--color-text-muted);
  font-size: 11px;
}

.ai-console-foot strong {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.ai-fact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr) minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: var(--shadow-button);
}

.ai-fact-band > div {
  min-width: 0;
  border-right: 1px solid var(--color-border);
  padding: 18px 20px;
}

.ai-fact-band > div:last-child {
  border-right: 0;
}

.ai-fact-label {
  display: block;
  margin-bottom: 5px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.ai-fact-band strong {
  display: block;
  overflow-wrap: anywhere;
  color: var(--color-accent);
  font-size: 13px;
}

.section-heading {
  margin-bottom: 34px;
}

.ai-heading-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.75fr);
  align-items: end;
  gap: 44px;
}

.ai-heading-grid .lead {
  margin-bottom: 6px;
}

.ai-requirement-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--ai-grid-gap);
}

.ai-requirement {
  position: relative;
  min-width: 0;
  border-top: 4px solid var(--color-accent);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  padding: 26px;
}

.ai-requirement:nth-child(even) {
  border-top-color: var(--color-success);
}

.ai-requirement-code {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.ai-requirement h3 {
  font-size: 22px;
}

.ai-requirement p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.ai-panel-section {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel-deep);
}

.ai-table-wrap {
  margin-top: 28px;
  box-shadow: var(--shadow-button);
}

.ai-table-wrap .chip {
  margin: 2px;
  background: var(--color-panel);
}

.ai-tool-browser {
  display: grid;
  grid-template-columns: var(--ai-tool-index-width) minmax(0, 1fr);
  margin-top: 32px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.ai-tool-index {
  display: flex;
  flex-direction: column;
  gap: 5px;
  border-right: 1px solid var(--color-border);
  background: var(--color-panel-deep);
  padding: 16px 12px;
}

.ai-tool-index a {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 9px;
  border-left: 2px solid transparent;
  border-radius: var(--radius-xs);
  padding: 9px 12px;
  color: var(--color-text-muted);
  font-weight: 750;
}

.ai-tool-index a:hover,
.ai-tool-index a:focus-visible {
  border-left-color: var(--color-accent);
  background: var(--color-panel);
  color: var(--color-accent);
}

.ai-tool-content {
  min-width: 0;
}

.ai-tool-note {
  padding: 28px 30px;
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.ai-tool-note:last-child {
  border-bottom: 0;
}

.ai-tool-note-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.ai-tool-note h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.ai-tool-note p {
  max-width: 64em;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.ai-two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  align-items: start;
  gap: 56px;
}

.ai-checklist {
  display: grid;
  gap: 0;
  padding-top: 8px;
  padding-bottom: 8px;
}

.ai-checklist-item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  padding: 18px 8px;
}

.ai-checklist-item:last-child {
  border-bottom: 0;
}

.ai-checklist-item > span {
  display: inline-flex;
  width: 26px;
  height: 26px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  color: var(--color-panel);
  font-weight: 900;
}

.ai-checklist-item p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.ai-checklist-item strong {
  color: var(--color-text);
}

.ai-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.ai-comparison-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: 28px;
}

.ai-comparison-card.is-dark {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-panel);
}

.ai-comparison-label {
  display: block;
  margin-bottom: 14px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.ai-comparison-card.is-dark .ai-comparison-label {
  color: var(--color-border);
}

.ai-comparison-card.is-dark h3 {
  color: var(--color-panel);
}

.ai-comparison-card ul {
  display: grid;
  gap: 10px;
  margin-bottom: 0;
}

.ai-comparison-card li {
  color: var(--color-text-muted);
}

.ai-comparison-card.is-dark li {
  color: var(--color-border);
}

.ai-callout {
  margin-top: 18px;
}

.ai-dev-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.ai-dev-flow article {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  padding: 22px;
}

.ai-dev-flow article:nth-child(even) {
  background: var(--color-panel-deep);
}

.ai-dev-mark {
  display: inline-flex;
  min-width: 42px;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  padding: 4px 9px;
  color: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.ai-dev-flow h3 {
  font-size: 20px;
}

.ai-dev-flow p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.ai-failure-list {
  margin-top: 30px;
}

.ai-failure-list .faq-item {
  background: var(--color-panel);
}

.ai-route-guide {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.ai-route-copy {
  padding: 38px;
}

.ai-route-copy p:not(.eyebrow) {
  color: var(--color-text-muted);
}

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

.ai-route-facts {
  background: var(--color-accent);
  padding: 34px 28px;
  color: var(--color-panel);
}

.ai-route-facts-label {
  display: block;
  margin-bottom: 20px;
  color: var(--color-border);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.ai-route-facts dl {
  margin: 0;
}

.ai-route-facts dl > div {
  border-bottom: 1px solid var(--color-text-muted);
  padding: 15px 0;
}

.ai-route-facts dl > div:last-child {
  border-bottom: 0;
}

.ai-route-facts dt {
  margin-bottom: 4px;
  color: var(--color-border);
  font-size: 11px;
}

.ai-route-facts dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-weight: 800;
}

@media (max-width: 1080px) {
  .ai-hero-grid {
    grid-template-columns: 1fr;
  }

  .ai-hero-copy h1 {
    max-width: 11em;
  }

  .ai-workspace {
    min-height: 0;
    padding-left: 0;
  }

  .ai-heading-grid,
  .ai-two-column {
    grid-template-columns: 1fr;
    gap: 26px;
  }

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

@media (max-width: 860px) {
  .ai-fact-band {
    grid-template-columns: 1fr;
  }

  .ai-fact-band > div {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .ai-fact-band > div:last-child {
    border-bottom: 0;
  }

  .ai-tool-browser {
    grid-template-columns: 1fr;
  }

  .ai-tool-index {
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
    -webkit-overflow-scrolling: touch;
  }

  .ai-tool-index a {
    flex: 0 0 auto;
    border-left: 0;
    border-bottom: 2px solid transparent;
  }

  .ai-tool-index a:hover,
  .ai-tool-index a:focus-visible {
    border-left-color: transparent;
    border-bottom-color: var(--color-accent);
  }

  .ai-route-guide {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .ai-hero {
    padding-top: 36px;
    padding-bottom: 48px;
  }

  .ai-workspace {
    padding-top: 24px;
    padding-right: 0;
  }

  .ai-console-mode {
    display: none;
  }

  .ai-console-nav {
    width: 82px;
    padding-inline: 7px;
  }

  .ai-console-nav span:not(.ai-console-nav-title) {
    padding-inline: 6px;
    font-size: 11px;
  }

  .ai-check-row {
    grid-template-columns: auto minmax(78px, 1fr) auto;
    padding-inline: 11px;
  }

  .ai-check-rule {
    display: none;
  }

  .ai-console-foot strong {
    display: none;
  }

  .ai-requirement-grid,
  .ai-comparison {
    grid-template-columns: 1fr;
  }

  .ai-tool-note {
    padding: 24px 20px;
  }

  .ai-tool-note-head {
    flex-direction: column;
    gap: 0;
  }

  .ai-dev-flow {
    grid-template-columns: 1fr;
  }

  .ai-route-copy,
  .ai-route-facts {
    padding: 26px 22px;
  }
}

@media (max-width: 520px) {
  .ai-hero-grid {
    gap: 26px;
  }

  .ai-workspace {
    margin-inline: -4px;
  }

  .ai-console-nav {
    display: none;
  }

  .ai-console-body {
    min-height: 0;
  }

  .ai-console-head,
  .ai-console-foot {
    padding-inline: 12px;
  }

  .ai-console-foot {
    justify-content: flex-start;
  }

  .ai-requirement,
  .ai-comparison-card,
  .ai-dev-flow article {
    padding: 20px;
  }

  .ai-route-copy .button-row,
  .ai-route-copy .btn-primary,
  .ai-route-copy .btn-secondary {
    width: 100%;
  }
}