#video-results {
  padding-top: var(--space-3xl);
}

.materials__stage {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 2.8vw, 2.35rem);
  border-radius: calc(var(--radius-xl) + 0.4rem);
  background:
    radial-gradient(circle at top, rgba(245, 158, 11, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(34, 21, 4, 0.96), rgba(19, 14, 10, 0.98));
  border: 1px solid rgba(245, 158, 11, 0.14);
  box-shadow:
    0 32px 80px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.materials__stage::before,
.materials__stage::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.materials__stage::before {
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 54px 54px;
  opacity: 0.28;
}

.materials__stage::after {
  width: clamp(11rem, 18vw, 18rem);
  height: clamp(11rem, 18vw, 18rem);
  top: -4rem;
  right: -4rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.18), transparent 70%);
  filter: blur(12px);
}

.materials__heading {
  position: relative;
  z-index: 1;
  margin-bottom: var(--space-2xl);
}

.materials__heading h2 {
  margin-bottom: 0;
  color: #fff3da;
  text-transform: uppercase;
  text-wrap: balance;
}

.materials__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 1.6vw, 1.3rem);
}

.materials__card {
  display: block;
  color: inherit;
  text-decoration: none;
}

.materials__card-surface {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  padding: 1rem;
  border-radius: calc(var(--radius-lg) + 0.1rem);
  background: linear-gradient(145deg, rgba(10, 11, 13, 0.96), rgba(24, 26, 31, 0.94));
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow:
    0 16px 32px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition:
    transform var(--duration-fast) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.materials__card:hover .materials__card-surface {
  transform: translateY(-3px);
}

.materials__card-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.materials__card-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.12;
}

.materials__card-surface::before,
.materials__card-surface::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
}

.materials__card-surface::before {
  background: linear-gradient(180deg, rgba(7, 9, 12, 0.08), rgba(7, 9, 12, 0.4));
}

.materials__card-surface::after {
  background:
    linear-gradient(180deg, rgba(7, 9, 12, 0.04) 0%, rgba(7, 9, 12, 0.16) 58%, rgba(7, 9, 12, 0.42) 100%),
    radial-gradient(circle at center, transparent 32%, rgba(0, 0, 0, 0.22) 100%);
}

.materials__card-play {
  position: absolute;
  z-index: 2;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  width: 2.45rem;
  height: 2.45rem;
  border-radius: 50%;
  background: rgba(244, 245, 248, 0.82);
  color: rgba(19, 19, 24, 0.86);
  backdrop-filter: blur(6px);
  box-shadow:
    0 10px 18px rgba(0, 0, 0, 0.18),
    0 0 0 5px rgba(255, 255, 255, 0.05);
}

.materials__card-play svg {
  width: 0.9rem;
  height: 0.9rem;
  margin-left: 0.12rem;
}

.materials__card--blue .materials__card-surface {
  border-color: rgba(59, 130, 246, 0.22);
}

.materials__card--cyan .materials__card-surface {
  border-color: rgba(14, 165, 233, 0.22);
}

.materials__card--rose .materials__card-surface {
  border-color: rgba(228, 54, 99, 0.22);
}

.materials__card--violet .materials__card-surface {
  border-color: rgba(168, 85, 247, 0.22);
}

.materials__card--amber .materials__card-surface {
  border-color: rgba(245, 158, 11, 0.22);
}

.materials__card--green .materials__card-surface {
  border-color: rgba(34, 197, 94, 0.22);
}

@media (max-width: 1023px) {
  .materials__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  #video-results {
    padding-top: var(--space-2xl);
  }

  .materials__stage {
    padding: 1.15rem;
  }

  .materials__heading {
    margin-bottom: var(--space-xl);
  }

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

  .materials__card-play {
    width: 2.2rem;
    height: 2.2rem;
  }
}