.asset-intro {
  padding: 12px 0 22px;
  color: #315452;
  line-height: 1.9;
}

.asset-intro h2 {
  margin: 0 0 10px;
  font-size: 25px;
  color: #0b6c70;
}

.asset-intro p {
  margin: 10px 0 0;
  font-size: 16px;
}

.asset-stack {
  display: grid;
  gap: 18px;
}

.asset-card,
.note-banner,
.teacher-card,
.gallery-panel,
.video-card {
  border: 1px solid #d8ecea;
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f6fbfb 100%);
  box-shadow: 0 14px 28px rgba(6, 140, 143, 0.08);
}

.asset-card,
.teacher-card,
.gallery-panel,
.video-card {
  padding: 20px 24px;
}

.asset-card h3,
.teacher-card h3,
.gallery-panel h3,
.video-card h3 {
  margin: 0;
  color: #0b6c70;
  font-size: 20px;
}

.asset-meta {
  margin: 8px 0 0;
  color: #6f8785;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.asset-card p,
.teacher-card p,
.gallery-panel p,
.video-card p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: #355654;
}

.doc-snippet {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(6, 140, 143, 0.06);
  color: #315452;
}

.asset-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.asset-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  background: #068c8f;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.asset-actions a.secondary {
  background: #e4f3f1;
  color: #0b6c70;
}

.note-banner {
  padding: 16px 20px;
  border-left: 5px solid #068c8f;
}

.note-banner strong {
  display: block;
  color: #0b6c70;
  font-size: 17px;
}

.note-banner span {
  display: block;
  margin-top: 8px;
  color: #486765;
  line-height: 1.8;
}

.resource-list {
  margin: 10px 0 0;
  padding-left: 20px;
}

.resource-list li {
  margin-top: 10px;
  color: #315452;
  line-height: 1.8;
}

.teacher-frame {
  margin-top: 18px;
  width: 100%;
  height: 640px;
  border: 1px solid #d8ecea;
  border-radius: 16px;
  background: #fff;
}

.teacher-hero {
  display: block;
  width: 100%;
  height: 240px;
  margin-bottom: 18px;
  border-radius: 18px;
  object-fit: cover;
  background: #eef5f4;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.gallery-grid img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 14px;
  background: #eef5f4;
}

.achievement-panel .gallery-grid img {
  object-fit: contain;
  padding: 12px;
  background: #fff;
  border: 1px solid #e6efee;
}

.gallery-caption {
  margin-top: 8px;
  color: #486765;
  font-size: 13px;
  line-height: 1.6;
}

.video-collection {
  display: grid;
  gap: 18px;
}

.video-card video {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 16px;
  border-radius: 16px;
  background: #000;
}

.video-card .asset-actions {
  margin-top: 14px;
}

.link-grid {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.link-grid a {
  color: #068c8f;
  text-decoration: none;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.summary-card {
  padding: 18px 16px;
  border-radius: 16px;
  background: #f3f9f8;
  border: 1px solid #d8ecea;
}

.summary-card strong {
  display: block;
  color: #0b6c70;
  font-size: 24px;
}

.summary-card span {
  display: block;
  margin-top: 8px;
  color: #486765;
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .summary-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .teacher-frame {
    height: 520px;
  }
}