.ai-hero {
  min-height: calc(100svh - var(--header-height));
  display: flex;
  align-items: center;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background-image: var(--gradient-hero);
}

.ai-hero-inner {
  padding-top: 62px;
  padding-bottom: 62px;
  display: grid;
  grid-template-columns: minmax(0, 49fr) minmax(0, 51fr);
  gap: 58px;
  align-items: center;
}

.ai-hero-copy,
.ai-route-card {
  min-width: 0;
}

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

.ai-hero-copy h1 {
  max-width: 670px;
}

.ai-hero-lead {
  max-width: 650px;
  margin-bottom: 30px;
  color: var(--color-text-muted);
  font-size: 18px;
}

.ai-route-card {
  min-height: 480px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.ai-route-card::before {
  position: absolute;
  width: 72%;
  aspect-ratio: 1;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-pill);
  content: "";
  opacity: .28;
  box-shadow: 0 0 70px var(--color-accent-shadow);
}

.ai-route-card::after {
  position: absolute;
  inset: 18px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-small);
  content: "";
  pointer-events: none;
}

.ai-route-art {
  width: 100%;
  height: auto;
  position: relative;
  z-index: 1;
  color: var(--color-globe-line);
}

.ai-grid-line {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1;
}

.ai-route-line {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 3;
  stroke-linecap: round;
  filter: drop-shadow(0 0 8px var(--color-accent));
}

.ai-route-line-soft {
  stroke-width: 1.5;
  opacity: .52;
}

.ai-route-node {
  fill: var(--color-panel);
  stroke: var(--color-accent);
  stroke-width: 3;
  filter: drop-shadow(0 0 7px var(--color-accent));
}

.ai-route-node-muted {
  stroke: var(--color-globe-line);
  stroke-width: 2;
  filter: none;
}

.ai-corner-mark {
  fill: none;
  stroke: var(--color-globe-line);
  stroke-width: 1.5;
  opacity: .58;
}

.ai-tool-cloud {
  position: absolute;
  z-index: 2;
  inset: 0;
  pointer-events: none;
}

.ai-tool-cloud span {
  position: absolute;
  min-height: 30px;
  padding: 5px 10px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  color: var(--color-text);
  box-shadow: var(--shadow-panel);
  font-family: var(--font-mono);
  font-size: 11px;
}

.ai-tool-cloud span:nth-child(1) {
  top: 16%;
  left: 9%;
}

.ai-tool-cloud span:nth-child(2) {
  top: 10%;
  right: 12%;
}

.ai-tool-cloud span:nth-child(3) {
  top: 45%;
  left: 6%;
}

.ai-tool-cloud span:nth-child(4) {
  top: 48%;
  right: 6%;
}

.ai-tool-cloud span:nth-child(5) {
  bottom: 12%;
  left: 15%;
}

.ai-tool-cloud span:nth-child(6) {
  right: 16%;
  bottom: 14%;
}

.ai-guide {
  position: relative;
}

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

.ai-note-card {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.ai-note-card:nth-child(even) {
  background: var(--color-panel-raised);
}

.ai-note-card h3 {
  font-size: 21px;
}

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

.ai-flow {
  display: grid;
  border-top: 1px solid var(--color-border);
}

.ai-flow article {
  padding: 26px 0;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 20px;
  border-bottom: 1px solid var(--color-border);
}

.ai-flow h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.ai-flow p {
  max-width: 900px;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

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

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

.ai-split .panel:nth-child(even) {
  background: var(--color-panel-raised);
}

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

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

.ai-developer-list .card {
  min-width: 0;
}

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

.ai-choice-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.ai-choice-card {
  min-width: 0;
  padding: 24px;
  border-top: 2px 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-small);
  background: var(--color-panel);
}

.ai-choice-card h3 {
  font-size: 19px;
}

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

.ai-next-panel {
  margin-top: 42px;
  padding: 32px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 34px;
  align-items: center;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-medium);
  background: var(--color-panel-raised);
  box-shadow: 0 0 0 1px var(--color-focus-shadow), var(--shadow-panel);
}

.ai-next-panel h3 {
  margin-bottom: 8px;
}

.ai-next-panel p:last-child {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.ai-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 1020px) {
  .ai-hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(360px, .8fr);
    gap: 34px;
  }

  .ai-route-card {
    min-height: 420px;
  }

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

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

@media (max-width: 820px) {
  .ai-hero {
    min-height: auto;
  }

  .ai-hero-inner {
    padding-top: 48px;
    padding-bottom: 54px;
    grid-template-columns: 1fr;
  }

  .ai-route-card {
    min-height: 360px;
  }

  .ai-route-art {
    max-width: 480px;
  }

  .ai-note-grid,
  .ai-split,
  .ai-developer-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .ai-hero-inner {
    gap: 30px;
  }

  .ai-hero-lead {
    font-size: 16px;
  }

  .ai-route-card {
    min-height: 300px;
  }

  .ai-tool-cloud span {
    display: none;
  }

  .ai-note-card,
  .ai-choice-card {
    padding: 21px;
  }

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

  .ai-flow article {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 14px;
  }

  .ai-next-panel {
    padding: 24px 20px;
  }

  .ai-next-actions {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ai-route-line,
  .ai-route-node {
    filter: none;
  }
}