.ai-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  padding-top: clamp(54px, 7vw, 92px);
  padding-bottom: clamp(64px, 8vw, 108px);
}

.ai-hero::after {
  position: absolute;
  right: -8%;
  bottom: -34%;
  width: min(620px, 72vw);
  height: 520px;
  background: radial-gradient(closest-side, var(--color-accent-haze), var(--color-accent-haze-soft) 58%, var(--color-transparent) 76%);
  content: "";
  pointer-events: none;
}

.ai-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  gap: clamp(44px, 7vw, 96px);
}

.ai-hero-copy {
  max-width: 680px;
}

.ai-hero-copy .hero-title {
  margin-top: 22px;
  font-size: clamp(48px, 5vw, 66px);
  text-align: left;
}

.ai-hero-lead {
  max-width: 650px;
  margin-top: 22px;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.8;
}

.ai-hero-copy .hero-actions,
.ai-hero-copy .fact-strip {
  justify-content: flex-start;
}

.ai-route-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
  transform-style: preserve-3d;
}

.ai-route-card::before {
  position: absolute;
  z-index: 3;
  top: 0;
  right: 12%;
  left: 12%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-transparent), var(--color-accent), var(--color-transparent));
  box-shadow: 0 0 14px var(--color-accent-glow-strong);
  content: "";
}

.ai-route-chrome {
  display: flex;
  height: 44px;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel-raised);
  padding-inline: 16px;
}

.ai-route-caption {
  margin-left: auto;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.ai-route-canvas {
  position: relative;
  min-height: 340px;
  background:
    linear-gradient(var(--color-border-soft) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-border-soft) 1px, var(--color-transparent) 1px),
    var(--color-panel);
  background-size: 42px 42px;
}

.ai-route-svg {
  position: absolute;
  inset: 14px 10px auto;
  width: calc(100% - 20px);
  color: var(--color-accent);
}

.ai-node {
  position: absolute;
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  padding: 4px 10px;
  color: var(--color-text);
  font-size: 11px;
  white-space: nowrap;
}

.ai-node-local {
  top: 46%;
  left: 3%;
}

.ai-node-web {
  top: 12%;
  left: 39%;
}

.ai-node-dev {
  bottom: 13%;
  left: 38%;
}

.ai-node-service {
  top: 46%;
  right: 3%;
}

.ai-route-status {
  position: absolute;
  right: 18px;
  bottom: 16px;
  left: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  padding: 10px 12px;
}

.ai-route-status span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.ai-document {
  position: relative;
}

.ai-document > .wrap {
  padding-top: 36px;
}

.ai-reading {
  max-width: 960px;
  margin-inline: auto;
}

.ai-reading .section {
  border-bottom: 1px solid var(--color-border);
}

.ai-reading .section:last-child {
  border-bottom: 0;
}

.ai-prose {
  color: var(--color-text-muted);
  font-size: 16px;
}

.ai-prose p + p {
  margin-top: 20px;
}

.ai-prose h3 {
  margin-top: 38px;
  color: var(--color-text);
}

.ai-prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.ai-tool-list {
  display: grid;
  gap: 18px;
}

.ai-tool-note {
  position: relative;
  border-left: 2px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-panel);
  padding: clamp(22px, 4vw, 32px);
}

.ai-tool-note h3 {
  font-size: clamp(20px, 2.4vw, 25px);
}

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

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

.ai-mode-panel {
  border-top: 1px 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: clamp(22px, 4vw, 32px);
}

.ai-mode-panel p {
  color: var(--color-text-muted);
}

.ai-mode-panel p + p {
  margin-top: 18px;
}

.ai-end-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

@media (max-width: 960px) {
  .ai-hero-grid {
    grid-template-columns: 1fr;
  }

  .ai-hero-copy {
    max-width: 760px;
    margin-inline: auto;
    text-align: center;
  }

  .ai-hero-copy .hero-title {
    text-align: center;
  }

  .ai-hero-copy .hero-actions,
  .ai-hero-copy .fact-strip {
    justify-content: center;
  }

  .ai-route-card {
    width: min(680px, 100%);
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .ai-hero {
    padding-top: 42px;
    padding-bottom: 72px;
  }

  .ai-hero-copy .hero-title {
    font-size: clamp(28px, 9.6vw, 40px);
  }

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

  .ai-document > .wrap {
    padding-top: 24px;
  }

  .ai-reading .section {
    padding-top: 72px;
    padding-bottom: 72px;
  }
}

@media (max-width: 640px) {
  .ai-reading :is(h2, h3) .no-break {
    white-space: normal;
  }

  .ai-hero-copy .hero-actions {
    align-items: stretch;
  }

  .ai-route-canvas {
    min-height: 390px;
  }

  .ai-route-svg {
    top: 44px;
    transform: rotate(90deg) scale(0.78);
  }

  .ai-node-local {
    top: 8%;
    left: 50%;
    transform: translateX(-50%);
  }

  .ai-node-web {
    top: 36%;
    left: 8%;
  }

  .ai-node-dev {
    right: 8%;
    bottom: auto;
    left: auto;
    top: 36%;
  }

  .ai-node-service {
    top: auto;
    right: auto;
    bottom: 22%;
    left: 50%;
    transform: translateX(-50%);
  }

  .ai-route-status {
    align-items: flex-start;
    flex-direction: column;
  }

  .ai-end-links {
    align-items: stretch;
    flex-direction: column;
  }

  .ai-end-links .btn-secondary {
    width: 100%;
  }
}

@media (max-width: 380px) {
  .ai-route-canvas {
    min-height: 410px;
  }

  .ai-node-web {
    left: 4%;
  }

  .ai-node-dev {
    right: 4%;
  }
}