.ai-hero {
  position: relative;
  overflow-x: clip;
  padding-top: clamp(64px, 8vw, 112px);
  padding-bottom: clamp(72px, 9vw, 128px);
  background: var(--gradient-hero);
  color: var(--color-white-soft);
}

.ai-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  content: "";
  mask-image: linear-gradient(to right, black, transparent);
  pointer-events: none;
}

.ai-hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: clamp(36px, 7vw, 88px);
}

.ai-hero-copy h1 {
  max-width: 690px;
  margin-top: 18px;
  margin-bottom: 22px;
  color: var(--color-panel);
}

.ai-hero-copy .hero-actions {
  justify-content: flex-start;
  margin-bottom: 22px;
}

.ai-hero-copy .button-secondary {
  border-color: var(--color-white-border);
  background: var(--color-white-overlay-strong);
  color: var(--color-panel);
}

.ai-hero-lead {
  max-width: 670px;
  color: var(--color-white-muted);
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 1.75;
}

.ai-hero-copy .hero-trust {
  justify-content: flex-start;
  margin-top: 20px;
}

.ai-route-board {
  position: relative;
  min-height: 430px;
  padding: 26px;
  overflow: hidden;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-card);
  background: var(--color-white-overlay);
  box-shadow: var(--shadow-device);
}

.ai-route-board::after {
  position: absolute;
  right: -92px;
  bottom: -108px;
  width: 260px;
  height: 260px;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 0 38px var(--color-white-overlay);
  content: "";
}

.ai-board-head,
.ai-board-foot {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-white-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.ai-board-state {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--color-panel);
}

.ai-route-flow {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(120px, 0.8fr) 80px minmax(160px, 1.1fr);
  align-items: stretch;
  min-height: 290px;
  margin-top: 34px;
  margin-bottom: 28px;
}

.ai-route-entry,
.ai-route-targets {
  display: grid;
  align-content: center;
  gap: 12px;
}

.ai-route-entry strong,
.ai-route-targets span {
  display: flex;
  min-height: 42px;
  align-items: center;
  padding-inline: 14px;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-small);
  background: var(--color-white-overlay);
  color: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 12px;
}

.ai-route-entry strong {
  border-left-color: var(--color-success);
}

.ai-route-targets span {
  border-right-color: var(--color-accent);
}

.ai-route-label {
  color: var(--color-white-muted);
  font-size: 12px;
  font-weight: 760;
}

.ai-route-line {
  display: grid;
  align-content: center;
  gap: 50px;
  padding-inline: 12px;
}

.ai-route-line span {
  position: relative;
  height: 1px;
  background: var(--color-line-dark);
}

.ai-route-line span::before,
.ai-route-line span::after {
  position: absolute;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  content: "";
  transform: translateY(-50%);
}

.ai-route-line span::before {
  left: 0;
}

.ai-route-line span::after {
  right: 0;
}

.ai-board-foot {
  justify-content: flex-start;
  gap: 22px;
}

.ai-ledger {
  display: grid;
  gap: 12px;
}

.ai-ledger-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  padding: 25px 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card-inner);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.ai-ledger-featured {
  border-color: var(--color-accent);
  background: var(--gradient-soft);
}

.ai-ledger-index {
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 820;
  letter-spacing: 0.06em;
}

.ai-ledger-body h3 {
  margin-bottom: 7px;
  font-size: 22px;
}

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

.ai-ledger-row .badge {
  white-space: nowrap;
}

.ai-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.ai-note-panel {
  padding: 30px;
}

.ai-note-code,
.ai-failure-tag {
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 820;
  letter-spacing: 0.08em;
}

.ai-note-panel h3 {
  margin-top: 16px;
}

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

.ai-service-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 30px;
  margin-top: 20px;
  padding: 28px 30px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-card);
  background: var(--color-panel-soft);
}

.ai-service-note h3 {
  margin-top: 10px;
  margin-bottom: 6px;
}

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

.ai-channel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.ai-channel-card {
  padding: 30px;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-card);
  background: var(--color-white-overlay);
}

.ai-channel-card p,
.ai-channel-card .check-list {
  color: var(--color-white-muted);
}

.ai-channel-title {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.ai-channel-title span {
  color: var(--color-success);
  font-size: 11px;
  font-weight: 820;
}

.ai-channel-title h3 {
  color: var(--color-panel);
}

.section-dark .verdict {
  border-left-color: var(--color-success);
  background: var(--color-white-overlay-strong);
  color: var(--color-panel);
}

.ai-dev-track {
  position: relative;
  display: grid;
  gap: 18px;
}

.ai-dev-track::before {
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 88px;
  width: 1px;
  background: var(--color-border);
  content: "";
}

.ai-dev-record {
  position: relative;
  display: grid;
  grid-template-columns: 176px minmax(0, 1fr);
  gap: 30px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.ai-dev-mark {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 15px;
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 820;
}

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

.ai-dev-record p:last-child {
  margin-bottom: 0;
}

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

.ai-failure-card {
  padding: 26px;
}

.ai-failure-card h3 {
  margin-top: 15px;
  font-size: 22px;
}

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

.ai-failure-card p:last-child {
  margin-bottom: 0;
}

.ai-selection-board {
  overflow: hidden;
}

.ai-selection-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 28px;
  padding: 26px 30px;
  border-bottom: 1px solid var(--color-border);
}

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

.ai-selection-item > span {
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 820;
}

.ai-selection-item h3 {
  margin-bottom: 6px;
  font-size: 22px;
}

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

.ai-facts-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 34px;
  margin-top: 24px;
  padding: 30px;
  border-radius: var(--radius-card);
  background: var(--gradient-hero);
  color: var(--color-white-muted);
  box-shadow: var(--shadow-device);
}

.ai-facts-panel h3 {
  margin-top: 10px;
  margin-bottom: 7px;
  color: var(--color-panel);
}

.ai-facts-panel .ai-note-code {
  color: var(--color-success);
}

.ai-facts-panel .fact-row {
  margin-top: 18px;
}

.ai-facts-panel .fact-pill {
  border-color: var(--color-white-border);
  background: var(--color-white-overlay);
  color: var(--color-white-muted);
}

.ai-facts-panel .button-secondary {
  border-color: var(--color-white-border);
  background: var(--color-panel);
}

.ai-pack-note {
  margin-top: 20px;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

@media (max-width: 980px) {
  .ai-hero-layout {
    grid-template-columns: 1fr;
  }

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

  .ai-ledger-row {
    grid-template-columns: 100px minmax(0, 1fr);
  }

  .ai-ledger-row .badge {
    grid-column: 2;
    width: fit-content;
  }

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

@media (max-width: 768px) {
  .ai-hero {
    padding-top: 54px;
    padding-bottom: 72px;
  }

  .ai-hero-copy .hero-trust {
    align-items: flex-start;
  }

  .ai-route-board {
    min-height: 0;
    padding: 22px;
  }

  .ai-route-flow {
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 18px;
    margin-top: 28px;
  }

  .ai-route-line {
    display: none;
  }

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

  .ai-board-foot {
    flex-wrap: wrap;
  }

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

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

  .ai-service-note .button {
    width: 100%;
  }

  .ai-dev-track::before {
    display: none;
  }

  .ai-dev-record {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .ai-selection-item {
    grid-template-columns: 84px minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .ai-route-targets {
    grid-template-columns: 1fr;
  }

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

  .ai-ledger-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 22px;
  }

  .ai-ledger-row .badge {
    grid-column: auto;
  }

  .ai-note-panel,
  .ai-channel-card,
  .ai-failure-card,
  .ai-dev-record,
  .ai-service-note,
  .ai-facts-panel {
    padding: 22px;
  }

  .ai-selection-item {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 22px;
  }

  .ai-facts-panel .button-row {
    width: 100%;
  }
}