.ai-guide-page {
  --ai-lime: #dff0c9;
  --ai-blue: #b9d9ff;
}

.ai-guide-hero {
  align-items: start;
}

.ai-video-card {
  position: relative;
  display: grid;
  gap: 1.25rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 2px;
  background:
    radial-gradient(circle at 92% 4%, rgba(185, 217, 255, 0.18), transparent 28%),
    #0d3727;
  color: #f7f7ef;
  box-shadow: 0 28px 75px rgba(16, 48, 35, 0.2);
}

.ai-video-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.74rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.ai-video-head b {
  color: var(--ai-lime);
}

.ai-video-card video {
  width: min(100%, 315px);
  max-height: 500px;
  margin: 0 auto;
  aspect-ratio: 9 / 16;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #071c14;
  object-fit: cover;
}

.ai-video-copy h2 {
  margin: 0 0 0.6rem;
  color: #fff;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.ai-video-copy p {
  margin: 0 0 0.9rem;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.6;
}

.ai-video-copy small {
  display: block;
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.7rem;
  line-height: 1.5;
}

.ai-checklist-block[data-start="4"] .guide-checklist {
  counter-reset: guide-item 3;
}

.ai-checklist-block[data-start="7"] .guide-checklist {
  counter-reset: guide-item 6;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 2.5rem 0 0;
  border: 1px solid var(--guide-line);
  background: var(--guide-line);
}

.capability-grid article {
  min-width: 0;
  padding: 1.7rem;
  background: #fbfaf6;
}

.capability-grid article > span {
  color: #0b6e44;
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.capability-grid h3 {
  margin: 1.5rem 0 1rem;
  font-size: 1.2rem;
}

.capability-grid ul {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  color: var(--guide-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  list-style: none;
}

.capability-grid li {
  position: relative;
  padding-left: 1.1rem;
}

.capability-grid li::before {
  position: absolute;
  top: 0.63em;
  left: 0;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: #0b6e44;
  content: "";
}

.capability-grid .capability-limit {
  background: #f2ede3;
}

.capability-grid .capability-limit > span {
  color: #8d4a2a;
}

.capability-grid .capability-limit li::before {
  background: #8d4a2a;
}

.ai-guide-page code {
  padding: 0.12rem 0.3rem;
  border: 1px solid var(--guide-line);
  background: #f2ede3;
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 0.82em;
}

@media (max-width: 980px) {
  .ai-video-card {
    max-width: 680px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .ai-video-card {
    padding: 1rem;
  }

  .ai-video-card video {
    max-height: 520px;
  }
}