.ecb-presentation-video {
  width: 100%;
  border-radius: 18px;
  overflow: hidden;
  background: #0b1220;
  box-shadow: 0 28px 80px rgba(15, 35, 70, 0.14);
}

.ecb-presentation-video video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #0b1220;
}

.ecb-presentation-video.is-empty {
  min-height: 220px;
  display: grid;
  place-items: center;
  color: #64748b;
  font-size: 14px;
  padding: 24px;
  text-align: center;
}

.presentation-page {
  max-width: 1120px;
  margin: auto;
  padding: 58px 24px 90px;
}

.presentation-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 28px;
}

.presentation-head span {
  color: #2563eb;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.presentation-head h1 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.05em;
  margin: 13px 0;
}

.presentation-head p {
  color: #526175;
  font-size: 17px;
  line-height: 1.6;
}

.presentation-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 28px 0 0;
}

.presentation-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 850;
  text-decoration: none;
}

.presentation-actions .primary {
  background: #2563eb;
  color: #fff;
}

.presentation-actions .secondary {
  border: 1px solid #2563eb;
  color: #2563eb;
}

.presentation-note {
  margin: 16px 0 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.5;
}

.talk-presentation,
.launch-presentation-copy,
.eid-presentation {
  margin-bottom: 24px;
}

.talk-presentation h2,
.launch-presentation-copy h2,
.eid-presentation h2 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.talk-presentation p,
.launch-presentation-copy p,
.eid-presentation p {
  margin: 0 0 16px;
  color: #526175;
  line-height: 1.55;
}

@media (max-width: 600px) {
  .presentation-page {
    padding: 40px 10px 60px;
  }

  .presentation-head {
    padding: 0 10px;
  }

  .presentation-actions {
    flex-direction: column;
  }

  .presentation-actions a {
    width: 100%;
  }
}