#crash-courses {
  width: 725px;
  padding: 25px 55px 45px;
}

#crash-courses .title {
  margin-top: 0;
}

.course-list {
  display: grid;
  grid-template-columns: 50% 50%;
  gap: 20px;
}

.crash-course {
  border: 2px solid var(--teal-dark-color);
  border-radius: 7px;
  padding: 7px 15px;
  position: relative;
}

.crash-course .overlay {
  position: absolute;
  top: 0;
  left: 0;
  padding-right: 10px;
  width: 100%;
  height: 100%;
  background: #0098b01a;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: right;
  color: #fff;
  font-size: 20px;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.crash-course:hover .overlay {
  opacity: 1;
  pointer-events: auto;
}

.crash-course .overlay-icon {
  font-size: 19px;
  color: #fff;
  background: #0098b0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.crash-course .ttl {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.1;
}

.crash-course .duration {
  font-size: 15px;
}

@media (max-width: 768px) {
  .course-list {
    grid-template-columns: 100%;
  }

  .crash-course .ttl {
    font-size: 16px;
    font-weight: 600;
  }  
}