```css
.opening-dates {
  width: 100%;
  font-family: "DM Sans", sans-serif;
}

.opening-dates__title {
  margin: 0 0 42px;
  font-size: 36px;
  line-height: 1.15;
  font-weight: 700;
}

.opening-dates__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.opening-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;

  min-width: 0;
  min-height: 136px;
  padding: 22px 20px 18px;

  border-radius: 20px;
  box-sizing: border-box;
  text-decoration: none;
}

.opening-card--featured {
  cursor: pointer;
}

.opening-card--featured:hover,
.opening-card--featured:focus {
  text-decoration: none;
}


/* Featured badge */

.opening-card__badge {
  position: absolute;
  top: -9px;
  right: 12px;
  z-index: 1;

  max-width: calc(100% - 24px);
  padding: 5px 9px;

  border-radius: 999px;
  background: #eb8f3a;
  color: #fff;

  font-size: 11px;
  line-height: 1.2;
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
}


.opening-card__icon {
  width: 36px;
  height: 36px;
  margin-bottom: 5px;
  flex-shrink: 0;
}

.opening-card__icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.opening-card__month {
  margin-bottom: 4px;
  font-size: 18px;
  line-height: 1.15;
  font-weight: 700;
}

.opening-card__modalities {
  font-size: 14px;
  line-height: 1.3;
  font-weight: 500;
}

.opening-dates__footnote {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.4;
}


/* Tablet */

@media (max-width: 900px) {

  .opening-dates__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}


/* Mobile */

@media (max-width: 480px) {

  .opening-dates__title {
    margin-bottom: 28px;
    font-size: 28px;
  }

  .opening-dates__grid {
    gap: 12px;
  }

  .opening-card {
    min-height: 128px;
    padding: 16px 14px;
    border-radius: 16px;
  }

  .opening-card__badge {
    top: -7px;
    right: 8px;
    max-width: calc(100% - 16px);
    padding: 4px 7px;
    font-size: 10px;
  }

  .opening-card__icon {
    width: 30px;
    height: 30px;
  }

  .opening-card__month {
    font-size: 17px;
  }

  .opening-card__modalities {
    font-size: 13px;
  }

  .opening-dates__footnote {
    margin-top: 16px;
    font-size: 14px;
  }

}
```