.ai-hero {
  position: relative;
  overflow-x: clip;
  padding-top: clamp(64px, 8vw, 108px);
  padding-bottom: clamp(72px, 9vw, 124px);
  border-bottom: var(--border-thin) solid var(--color-border);
  isolation: isolate;
}

.ai-hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(90deg, transparent, var(--color-accent-faint), transparent),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 11%,
      var(--color-grid) 11%,
      var(--color-grid) calc(11% + var(--border-thin))
    );
}

.ai-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: 8%;
  bottom: -34%;
  width: min(46vw, 620px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-soft), transparent 68%);
  filter: blur(14px);
}

.ai-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(520px, 1.1fr);
  align-items: center;
  gap: clamp(40px, 6vw, 86px);
}

.ai-hero-copy {
  max-width: 650px;
}

.ai-hero-copy h1 {
  max-width: 620px;
}

.ai-hero-lead {
  margin-top: 26px;
  margin-bottom: 0;
}

.ai-route-console {
  position: relative;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-border-bright);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, var(--color-accent-faint), transparent 38%),
    var(--color-panel);
  box-shadow: var(--shadow-window);
}

.ai-route-console::before,
.ai-route-console::after {
  content: "";
  position: absolute;
  z-index: 0;
  bottom: 0;
  width: 32px;
  background: linear-gradient(to top, var(--color-accent-soft), transparent);
  pointer-events: none;
}

.ai-route-console::before {
  left: 14%;
  height: 56%;
}

.ai-route-console::after {
  right: 11%;
  height: 78%;
}

.ai-console-head {
  position: relative;
  z-index: 2;
  min-height: 54px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: var(--border-thin) solid var(--color-border);
  background: var(--color-panel-raised);
}

.ai-console-title {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--micro-size);
}

.ai-console-head .session-status {
  margin-left: auto;
}

.ai-console-body {
  position: relative;
  z-index: 1;
  padding: clamp(20px, 3vw, 30px);
}

.ai-route-step {
  position: relative;
  min-height: 92px;
  padding: 15px 0 16px;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  align-items: start;
  gap: 16px;
  border-bottom: var(--border-thin) dashed var(--color-border);
}

.ai-route-step::before {
  content: "";
  position: absolute;
  top: 35px;
  left: 24px;
  bottom: -18px;
  border-left: var(--border-thin) dashed var(--color-accent-dark);
}

.ai-route-step:last-of-type::before {
  display: none;
}

.ai-step-code {
  width: 48px;
  min-height: 38px;
  display: grid;
  place-items: center;
  border: var(--border-thin) solid var(--color-accent-dark);
  border-radius: var(--radius-xs);
  background: var(--color-panel-raised);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
}

.ai-route-step strong {
  display: block;
  margin-bottom: 4px;
  color: var(--color-text);
  font-size: 14px;
}

.ai-route-step p {
  margin: 0;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.65;
}

.ai-step-state {
  padding-top: 4px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.ai-console-body .ack-result {
  margin-top: 22px;
}

.ai-document {
  position: relative;
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}

.ai-document-grid {
  display: grid;
  grid-template-columns: 230px minmax(0, var(--reading-width));
  justify-content: center;
  align-items: start;
  gap: clamp(42px, 7vw, 96px);
}

.ai-index {
  position: sticky;
  top: var(--toc-top);
}

.ai-index-label {
  margin: 0 0 14px;
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: var(--micro-size);
  letter-spacing: 0.08em;
}

.ai-index .toc-tabs {
  position: relative;
  top: auto;
  padding: 7px;
  align-items: stretch;
  flex-direction: column;
  overflow: visible;
  background: var(--color-panel);
  box-shadow: none;
}

.ai-index .toc-tabs a {
  width: 100%;
}

.ai-content {
  width: 100%;
  max-width: var(--reading-width);
}

.ai-section {
  padding-top: 30px;
  padding-bottom: clamp(74px, 9vw, 116px);
  border-top: var(--border-thin) solid var(--color-border);
}

.ai-section:first-child {
  padding-top: 0;
  border-top: 0;
}

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

.ai-section h2 {
  margin-top: 0;
}

.ai-section h3 {
  margin-top: 38px;
  font-size: clamp(21px, 2vw, 26px);
}

.section-code {
  margin: 0 0 15px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: var(--micro-size);
  letter-spacing: 0.08em;
}

.ai-tool-table {
  min-width: 790px;
}

.ai-split-notes {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ai-note-panel {
  padding: 24px;
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(145deg, var(--color-accent-faint), transparent 48%),
    var(--color-panel);
}

.ai-note-panel h3 {
  margin-top: 20px;
  margin-bottom: 16px;
  font-size: 21px;
}

.ai-note-panel .check-list {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.ai-note-panel .check-list li {
  position: relative;
  padding-left: 18px;
}

.ai-note-panel .check-list li::before {
  content: "ACK";
  position: absolute;
  top: 4px;
  left: 0;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 7px;
}

.ai-failure-list {
  margin-top: 34px;
  border-top: var(--border-thin) solid var(--color-border);
}

.ai-failure-row {
  padding: 28px 0;
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 22px;
  border-bottom: var(--border-thin) solid var(--color-border);
}

.ai-failure-mark {
  width: max-content;
  max-width: 100%;
  padding: 6px 8px;
  border: var(--border-thin) solid var(--color-accent-dark);
  border-radius: var(--radius-xs);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
}

.ai-failure-row h3 {
  margin: 0 0 8px;
  font-size: 21px;
}

.ai-failure-row p {
  margin: 0;
}

.ai-decision-panel {
  margin-top: 42px;
  padding: clamp(24px, 4vw, 38px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(190px, auto);
  align-items: center;
  gap: 32px;
  border: var(--border-thin) solid var(--color-accent-dark);
  border-radius: var(--radius-md);
  background:
    linear-gradient(110deg, var(--color-accent-soft), transparent 60%),
    var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
}

.ai-decision-panel h3 {
  margin: 18px 0 8px;
  font-size: clamp(24px, 3vw, 34px);
}

.ai-decision-panel p {
  margin: 0;
}

.ai-decision-actions {
  display: grid;
  gap: 9px;
}

.ai-decision-actions .button {
  width: 100%;
}

.ai-content.prose .ai-decision-actions .button-primary {
  color: var(--color-bg);
}

@media (max-width: 1040px) {
  .ai-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .ai-hero-copy {
    max-width: 760px;
  }

  .ai-route-console {
    width: 100%;
    max-width: 720px;
  }

  .ai-document-grid {
    grid-template-columns: minmax(0, var(--reading-width));
  }

  .ai-index {
    position: relative;
    top: auto;
  }

  .ai-index .toc-tabs {
    position: sticky;
    top: var(--toc-top);
    align-items: center;
    flex-direction: row;
    overflow-x: auto;
    background: var(--color-panel-raised);
    box-shadow: 0 12px 30px var(--color-shadow-soft);
  }

  .ai-index .toc-tabs a {
    width: auto;
  }
}

@media (max-width: 700px) {
  .ai-hero {
    padding-top: 48px;
    padding-bottom: 68px;
  }

  .ai-console-head {
    padding-inline: 14px;
  }

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

  .ai-route-step {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .ai-step-state {
    grid-column: 2;
    padding-top: 0;
  }

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

  .ai-failure-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

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

@media (max-width: 420px) {
  .ai-route-step {
    min-height: 118px;
    grid-template-columns: minmax(0, 1fr);
  }

  .ai-route-step::before {
    display: none;
  }

  .ai-step-code {
    width: max-content;
    min-width: 48px;
    min-height: 32px;
  }

  .ai-step-state {
    grid-column: auto;
  }

  .ai-console-body .ack-result {
    padding-inline: 14px;
  }
}