.ai-hero {
  position: relative;
  max-width: 100%;
  padding-top: 64px;
  padding-bottom: 72px;
  overflow-x: clip;
}

.ai-hero::before {
  position: absolute;
  z-index: -1;
  top: 3%;
  right: 8%;
  width: min(42vw, 560px);
  height: min(42vw, 560px);
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, var(--atmosphere-glow), var(--atmosphere-clear) 70%);
  content: "";
}

.ai-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 48fr) minmax(0, 52fr);
  align-items: center;
  gap: 68px;
}

.ai-hero .hero-copy {
  padding-left: 0;
}

.ai-hero .hero-copy h1 {
  max-width: 10em;
}

.ai-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.ai-hero-facts span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 5px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-soft);
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 8px 22px var(--shadow-blue);
}

.ai-route-board {
  position: relative;
  min-width: 0;
  padding: 26px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--color-text);
  color: var(--color-panel);
  box-shadow:
    inset 0 1px 0 var(--highlight-dark),
    0 28px 62px var(--shadow-blue-strong);
}

.ai-route-board::before {
  position: absolute;
  right: -36px;
  bottom: -42px;
  width: 190px;
  height: 150px;
  background: var(--color-coral);
  content: "";
  clip-path: polygon(38% 0, 100% 22%, 84% 100%, 0 80%);
}

.ai-route-board::after {
  position: absolute;
  right: 92px;
  bottom: -30px;
  width: 180px;
  height: 82px;
  background: var(--color-panel-muted);
  content: "";
  clip-path: polygon(18% 0, 100% 22%, 82% 100%, 0 74%);
}

.ai-board-head {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.ai-board-mark {
  color: var(--color-border);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
}

.ai-route-flow {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(100px, 1fr) minmax(160px, 240px) minmax(100px, 1fr);
  align-items: center;
  gap: 8px;
  margin-top: 48px;
}

.ai-route-origin,
.ai-route-exit {
  display: flex;
  min-width: 0;
  align-items: center;
  flex-direction: column;
  text-align: center;
}

.ai-route-icon {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid var(--highlight-dark);
  border-radius: var(--radius-md);
  background: var(--color-text-soft);
  color: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--highlight-dark);
}

.ai-route-exit .ai-route-icon {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-text);
  box-shadow: 0 12px 28px var(--shadow-honey-strong);
}

.ai-route-origin b,
.ai-route-exit b {
  margin-top: 12px;
  color: var(--color-panel);
  font-size: 14px;
}

.ai-route-origin small,
.ai-route-exit small {
  margin-top: 3px;
  color: var(--color-border);
  font-size: 11px;
}

.ai-route-path {
  width: 100%;
  height: auto;
  overflow: visible;
}

.ai-route-path-base {
  fill: none;
  stroke: var(--highlight-dark);
  stroke-linecap: round;
  stroke-width: 7;
}

.ai-route-path-active {
  fill: none;
  stroke: var(--color-accent);
  stroke-dasharray: 9 12;
  stroke-linecap: round;
  stroke-width: 2;
}

.ai-route-spark {
  fill: var(--color-accent);
  filter: drop-shadow(0 0 7px var(--color-accent));
}

.ai-tool-strip {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 36px;
}

.ai-tool-strip span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--highlight-dark);
  border-radius: var(--radius-pill);
  background: var(--color-text-soft);
  color: var(--color-border);
  font-family: var(--font-mono);
  font-size: 10px;
}

.ai-board-note {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 24px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: 0 14px 30px var(--shadow-blue-deep);
}

.ai-board-note p {
  margin: 0;
  font-size: 12px;
  font-weight: 650;
}

.ai-note-dot {
  width: 9px;
  height: 9px;
  flex: none;
  margin-top: 5px;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  box-shadow: 0 0 0 5px var(--tint-green);
}

.ai-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.ai-summary-card {
  display: flex;
  min-width: 0;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow:
    inset 0 1px 0 var(--highlight),
    0 16px 38px var(--shadow-blue);
}

.ai-summary-icon {
  display: grid;
  width: 50px;
  height: 50px;
  flex: none;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--tint-blue);
  color: var(--color-text);
}

.ai-summary-card:nth-child(2) .ai-summary-icon {
  background: var(--tint-honey);
  color: var(--color-accent-dark);
}

.ai-summary-card:nth-child(3) .ai-summary-icon {
  background: var(--tint-coral);
  color: var(--color-coral);
}

.ai-summary-card h2 {
  margin-bottom: 8px;
  font-size: 19px;
  line-height: 1.35;
}

.ai-summary-card p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.ai-article {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
}

.ai-content-layout {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  align-items: start;
  gap: 64px;
}

.ai-side-note {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  padding: 26px;
  border-radius: var(--radius-card);
  background: var(--color-text);
  color: var(--color-panel);
  box-shadow: 0 22px 48px var(--shadow-blue-strong);
}

.ai-side-note h2 {
  margin-top: 12px;
  color: var(--color-panel);
  font-size: 25px;
}

.ai-side-note p {
  color: var(--color-border);
  font-size: 14px;
}

.ai-side-note ul {
  display: grid;
  gap: 9px;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--highlight-dark);
  list-style: none;
}

.ai-side-note li {
  position: relative;
  padding-left: 18px;
  color: var(--color-panel-muted);
  font-size: 13px;
}

.ai-side-note li::before {
  position: absolute;
  top: .72em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
  transform: translateY(-50%);
}

.ai-prose {
  max-width: 880px;
}

.ai-prose > section {
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-border);
}

.ai-prose > section + section {
  padding-top: 72px;
}

.ai-prose > section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.ai-prose h2 {
  margin-top: 14px;
}

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

.ai-prose p {
  color: var(--color-text-soft);
  font-size: 17px;
  line-height: 1.85;
}

.ai-prose .callout {
  margin-top: 30px;
  margin-bottom: 30px;
}

.ai-prose pre {
  margin-top: 28px;
  margin-bottom: 28px;
}

.ai-prose .table-scroll {
  margin-top: 28px;
}

.ai-prose .compare-table {
  min-width: 860px;
}

.ai-failure-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.ai-failure-list article {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: 0 12px 30px var(--shadow-blue);
}

.ai-failure-list h3 {
  margin-top: 0;
  font-size: 19px;
}

.ai-failure-list p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.75;
}

.ai-link-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.ai-link-card {
  display: flex;
  min-width: 0;
  min-height: 240px;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  box-shadow:
    inset 0 1px 0 var(--highlight),
    0 16px 38px var(--shadow-blue);
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.ai-link-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 22px 48px var(--shadow-honey);
}

.ai-link-card strong {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.4;
}

.ai-link-card p {
  margin-top: 12px;
  margin-bottom: 20px;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.ai-link-arrow {
  margin-top: auto;
  color: var(--color-accent-dark);
  font-weight: 750;
}

@media (max-width: 1050px) {
  .ai-hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .ai-hero .hero-copy h1 {
    max-width: none;
  }

  .ai-route-board {
    width: min(760px, 100%);
  }

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

  .ai-content-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .ai-side-note {
    position: relative;
    top: auto;
  }

  .ai-side-note ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-prose {
    max-width: none;
  }
}

@media (max-width: 700px) {
  .ai-hero {
    padding-top: 36px;
    padding-bottom: 48px;
  }

  .ai-hero::before {
    width: 100%;
    height: 360px;
  }

  .ai-route-board {
    padding: 20px;
    border-radius: var(--radius-lg);
  }

  .ai-board-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .ai-route-flow {
    grid-template-columns: 1fr;
    margin-top: 34px;
  }

  .ai-route-path {
    width: min(240px, 82%);
    margin-inline: auto;
    transform: rotate(90deg);
  }

  .ai-tool-strip {
    margin-top: 28px;
  }

  .ai-summary-card {
    padding: 20px;
  }

  .ai-side-note ul,
  .ai-failure-list,
  .ai-link-cards {
    grid-template-columns: 1fr;
  }

  .ai-prose > section {
    padding-bottom: 56px;
  }

  .ai-prose > section + section {
    padding-top: 56px;
  }

  .ai-prose p {
    font-size: 16px;
  }

  .ai-link-card {
    min-height: 0;
  }
}

@media (max-width: 430px) {
  .ai-route-path {
    width: 210px;
  }

  .ai-summary-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .ai-hero-facts span {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ai-link-card:hover {
    transform: none;
  }
}