.stars-materials-page {
  display: grid;
  gap: 24px;
  margin-top: 28px;
}

.stars-materials-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(220px, 0.65fr);
  gap: 18px;
  align-items: stretch;
}

.stars-materials-hero__copy,
.stars-materials-hero__aside,
.stars-materials-gate,
.stars-materials-lessons,
.stars-materials-viewer {
  background: rgba(255, 250, 242, 0.94);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.stars-materials-hero__copy,
.stars-materials-gate,
.stars-materials-lessons,
.stars-materials-viewer {
  padding: 24px;
}

.stars-materials-hero__copy p,
.stars-materials-gate p,
.stars-materials-section-head p,
.stars-materials-lesson-card__body p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.6;
}

.stars-materials-hero__aside {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: linear-gradient(135deg, rgba(207, 227, 244, 0.75), rgba(255, 255, 255, 0.96));
}

.stars-materials-hero__stat {
  display: grid;
  gap: 8px;
  text-align: center;
}

.stars-materials-hero__stat strong {
  font-family: "Fraunces", serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1;
}

.stars-materials-gate__actions,
.stars-materials-footer {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.stars-materials-grid {
  display: grid;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.stars-materials-section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.stars-materials-lessons__list {
  display: grid;
  gap: 14px;
}

.stars-materials-lesson-card {
  display: grid;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  background: #fffdf8;
  border: 1px solid rgba(47, 111, 149, 0.14);
  border-radius: 18px;
  padding: 14px;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.stars-materials-lesson-card:hover,
.stars-materials-lesson-card:focus-visible,
.stars-materials-lesson-card.is-active {
  transform: translateY(-1px);
  border-color: var(--sky-2);
  box-shadow: 0 14px 24px rgba(31, 41, 55, 0.08);
}

.stars-materials-lesson-card__visual {
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(47, 111, 149, 0.14);
  background: linear-gradient(180deg, #ffffff, #eef5fb);
  aspect-ratio: 4 / 3;
}

.stars-materials-lesson-card__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  padding: 10%;
}

.stars-materials-lesson-card__body {
  display: grid;
  gap: 8px;
}

.stars-materials-lesson-card__body h3 {
  margin: 0;
  font-size: 1.15rem;
  white-space: pre-line;
}

.stars-materials-viewer .stars-materials-section-head h2 {
  white-space: pre-line;
}

.stars-materials-lesson-card__body span {
  font-weight: 700;
  color: var(--accent);
}

.stars-materials-frame {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 64px;
  gap: 14px;
  align-items: center;
}

.stars-materials-viewer-stack {
  display: grid;
  gap: 22px;
}

.stars-materials-subviewer {
  display: grid;
  gap: 14px;
}

.stars-materials-subviewer + .stars-materials-subviewer {
  padding-top: 22px;
  border-top: 1px solid rgba(47, 111, 149, 0.14);
}

.stars-materials-subviewer__head {
  display: grid;
  gap: 6px;
}

.stars-materials-subviewer__head h3,
.stars-materials-subviewer__head p {
  margin: 0;
}

.stars-materials-subviewer--wide .stars-materials-slide {
  min-height: 380px;
}

.stars-materials-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 999px;
  border: 1px solid rgba(47, 111, 149, 0.18);
  background: #fffdf7;
  color: var(--accent);
  font-size: 2rem;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(31, 41, 55, 0.08);
}

.stars-materials-arrow.is-disabled {
  opacity: 0.35;
  box-shadow: none;
}

.stars-materials-slide-wrap {
  display: grid;
  gap: 12px;
}

.stars-materials-slide-meta {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.stars-materials-slide {
  border-radius: 22px;
  border: 1px solid rgba(47, 111, 149, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(239, 245, 251, 0.92));
  padding: 18px;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stars-materials-slide img {
  display: block;
  width: 100%;
  max-height: 76vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 22px 40px rgba(31, 41, 55, 0.12);
  background: #fff;
}

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

@media (max-width: 720px) {
  .stars-materials-frame {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stars-materials-slide-wrap {
    grid-column: 1 / -1;
    order: -1;
  }

  .stars-materials-arrow {
    width: 100%;
    border-radius: 16px;
  }

  .stars-materials-slide {
    min-height: auto;
    padding: 12px;
  }

  .stars-materials-slide img {
    max-height: none;
  }
}