.materials-page.materials-handoff-page {
  align-items: flex-start;
  justify-content: center;
  padding: clamp(40px, 7vh, 76px) clamp(20px, 5vw, 64px) 72px;
}

.materials-directory {
  position: relative;
  z-index: 1;
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 8px 0 56px;
}

.materials-directory__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.materials-directory__promise {
  max-width: 760px;
  margin: 0;
  color: rgba(228, 236, 255, 0.58);
  font-size: clamp(0.9rem, 1.45vw, 1.08rem);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0;
}

.materials-directory__miniapp {
  flex: 0 0 132px;
  display: grid;
  justify-items: center;
  gap: 7px;
  text-align: center;
}

.materials-directory__miniapp-button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  padding: 0;
  border: 0;
  border-radius: 14px;
  background: transparent;
  cursor: pointer;
}

.materials-directory__miniapp-button img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  object-fit: cover;
}

.materials-directory__miniapp p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.materials-directory__status {
  min-height: 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.materials-directory__courses {
  display: grid;
  gap: 28px;
}

.materials-letter-group {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 22px;
  padding-top: 2px;
}

.materials-letter-group h2 {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
}

.materials-course-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 11px 24px;
  min-width: 0;
}

.materials-course-link {
  display: block;
  min-width: 0;
  color: var(--primary-color);
  font-size: 0.98rem;
  line-height: 1.55;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}

.materials-course-link:hover,
.materials-course-link:focus-visible {
  color: var(--accent-color);
}

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

.materials-directory__detail-header {
  display: flex;
  align-items: baseline;
  gap: 18px;
  min-width: 0;
}

.materials-directory__detail-header h2 {
  min-width: 0;
  margin: 0;
  color: var(--primary-color);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.materials-directory__back {
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.materials-directory__back:hover,
.materials-directory__back:focus-visible {
  color: var(--accent-color);
}

.materials-directory__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border-color);
}

.materials-directory__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-color);
}

.materials-directory__item-text {
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.materials-directory__title {
  min-width: 0;
  color: var(--primary-color);
  font-size: 0.98rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.materials-directory__meta {
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.4;
  white-space: nowrap;
}

.materials-directory__download {
  appearance: none;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--primary-color);
  font: inherit;
  font-size: 0.94rem;
  line-height: 1.4;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  white-space: nowrap;
  cursor: pointer;
}

.materials-directory__download:hover,
.materials-directory__download:focus-visible {
  color: var(--accent-color);
}

.materials-directory__download.is-disabled {
  color: var(--text-muted);
  text-decoration: none;
  cursor: default;
}

.materials-directory__download:disabled {
  cursor: default;
  opacity: 0.62;
}

@media (max-width: 1120px) {
  .materials-course-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .materials-course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .materials-directory__item-text {
    display: grid;
    gap: 4px;
  }

  .materials-directory__meta {
    white-space: normal;
  }
}

@media (max-width: 720px) {
  .materials-page.materials-handoff-page {
    align-items: flex-start;
    justify-content: center;
    padding: 34px 16px 56px;
  }

  .materials-directory {
    width: 100%;
    padding: 0 0 44px;
  }

  .materials-directory__header {
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 14px;
    padding-bottom: 14px;
  }

  .materials-directory__promise {
    font-size: clamp(0.86rem, 4.2vw, 1rem);
    line-height: 1.6;
  }

  .materials-directory__miniapp {
    flex-basis: 96px;
    gap: 6px;
  }

  .materials-directory__miniapp-button {
    width: 52px;
    height: 52px;
    border-radius: 12px;
  }

  .materials-directory__miniapp p {
    font-size: 0.72rem;
  }

  .materials-directory__courses {
    gap: 24px;
  }

  .materials-letter-group {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 12px;
  }

  .materials-course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 18px;
  }

  .materials-directory__detail-header {
    align-items: flex-start;
    gap: 12px;
  }

  .materials-directory__item {
    gap: 12px;
    padding: 10px 0;
  }
}