html,
body {
  background: #020817;
}

.dod-ai-ecg {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 76px);
  padding: 92px 24px;
  background:
    linear-gradient(115deg, rgba(66, 232, 255, 0.11) 0%, transparent 28%),
    linear-gradient(235deg, rgba(255, 171, 64, 0.1) 0%, transparent 24%),
    linear-gradient(135deg, #020817 0%, #061426 52%, #020817 100%);
  color: #f4fbff;
}

.dod-ai-ecg + .site-footer {
  background: #020817;
}

.dod-ai-ecg::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(66, 232, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66, 232, 255, 0.04) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 78%);
}

.dod-ai-ecg::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent, rgba(66, 232, 255, 0.12), transparent) 0 30% / 100% 1px no-repeat,
    linear-gradient(90deg, transparent, rgba(255, 48, 82, 0.16), transparent) 0 78% / 100% 1px no-repeat;
}

.dod-ai-ecg__content {
  position: relative;
  z-index: 1;
  width: min(100%, 1180px);
  margin: 0 auto;
}

.dod-ai-ecg__copy {
  max-width: 920px;
}

.dod-ai-ecg__eyebrow {
  display: inline-block;
  max-width: 100%;
  margin-bottom: 16px;
  color: #42e8ff;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  line-height: 1.45;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.dod-ai-ecg h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(2.45rem, 6vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.dod-ai-ecg__lead {
  max-width: 800px;
  margin: 24px 0 0;
  color: #b9d7e8;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.62;
  overflow-wrap: anywhere;
}

.dod-ai-ecg__video {
  position: relative;
  overflow: hidden;
  margin-top: 42px;
  border: 1px solid rgba(66, 232, 255, 0.3);
  border-radius: var(--radius-md);
  box-shadow:
    0 24px 80px rgba(0, 220, 255, 0.16),
    inset 0 0 42px rgba(66, 232, 255, 0.06);
  background:
    linear-gradient(135deg, rgba(66, 232, 255, 0.1), transparent 30%),
    rgba(2, 8, 23, 0.78);
  aspect-ratio: 16 / 9;
}

.dod-ai-ecg__video::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.dod-ai-ecg__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.dod-ai-ecg__cards article {
  min-height: 180px;
  padding: 24px;
  border: 1px solid rgba(185, 215, 232, 0.16);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.03));
  backdrop-filter: blur(14px);
}

.dod-ai-ecg__card-index {
  display: inline-flex;
  margin-bottom: 24px;
  color: #ffb35c;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.dod-ai-ecg__cards h2 {
  margin: 0 0 10px;
  color: #ffffff;
  font-size: 1.12rem;
  line-height: 1.2;
}

.dod-ai-ecg__cards p {
  margin: 0;
  color: #b9d7e8;
  line-height: 1.55;
}

.dod-ai-ecg__clinical-note {
  max-width: 940px;
  margin-top: 28px;
  padding: 18px 20px;
  border-left: 3px solid rgba(66, 232, 255, 0.68);
  background: rgba(2, 8, 23, 0.48);
  color: #8faabd;
}

.dod-ai-ecg__clinical-note strong {
  display: block;
  margin-bottom: 8px;
  color: #f4fbff;
  font-size: 0.9rem;
}

.dod-ai-ecg__clinical-note p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.62;
}

@media (max-width: 960px) {
  .dod-ai-ecg {
    padding: 72px 20px;
  }

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

  .dod-ai-ecg__cards article {
    min-height: auto;
  }
}

@media (max-width: 560px) {
  .dod-ai-ecg {
    min-height: auto;
    padding: 56px 16px;
  }

  .dod-ai-ecg__eyebrow {
    font-size: 0.62rem;
    letter-spacing: 0.1em;
  }

  .dod-ai-ecg h1 {
    font-size: 2rem;
    line-height: 1.03;
  }

  .dod-ai-ecg__lead {
    font-size: 1rem;
  }

  .dod-ai-ecg__video {
    margin-top: 32px;
  }

  .dod-ai-ecg__cards article,
  .dod-ai-ecg__clinical-note {
    padding: 18px;
  }
}

.dod-ai-ecg__video-placeholder {
  width: 100%;
  height: 100%;
  min-height: 420px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 40px;
  background:
    radial-gradient(circle at center, rgba(66, 232, 255, 0.14), transparent 34%),
    linear-gradient(135deg, rgba(2, 8, 23, 0.96), rgba(6, 20, 38, 0.94));
}

.dod-ai-ecg__video-placeholder > div {
  max-width: 680px;
}

.dod-ai-ecg__video-kicker {
  display: inline-block;
  margin-bottom: 14px;
  color: #42e8ff;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.dod-ai-ecg__video-placeholder h2 {
  margin: 0 0 14px;
  color: #ffffff;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.dod-ai-ecg__video-placeholder p {
  margin: 0 auto 24px;
  color: #b9d7e8;
  font-size: 17px;
  line-height: 1.5;
}

.dod-ai-ecg__video-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid rgba(66, 232, 255, 0.44);
  border-radius: 999px;
  color: #f4fbff;
  text-decoration: none;
  background: rgba(66, 232, 255, 0.10);
  box-shadow: 0 0 28px rgba(66, 232, 255, 0.12);
}