* {
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  font-family: "Ubuntu", sans-serif;
  margin: 0;
  --header-height: 2rem;
}

.content {
  max-width: 64rem;
  margin: auto;
  padding: 3rem 2rem;
}

.header {
  margin-bottom: 1.5rem;
}
.header__text {
  font-size: var(--header-height);
  line-height: var(--header-height);
  font-weight: 600;
}
.header__link {
  position: fixed;
  right: 2.5rem;
  top: 1rem;
  height: var(--header-height);
  display:flex; 
  align-items:center; 
  justify-content:center;
  color: rgba(41, 102, 222, 1);
  cursor: pointer;
}
.header__name {
  font-size: 0.95rem;
  font-weight: 400;
}
.header__icon {
  margin-left: 0.5rem;
  font-size: 1.3rem;
  opacity: 0.9;
}

/* pinterest-like layout */
.cards {
  column-count: 4;
  column-gap: 1rem;
}
/* Set .content width to 18-33-48-63rem, based on screen width */
@media (max-width: 33rem) {
  .cards { column-count: 1; }
  .content { max-width: 18rem; }
}
@media (min-width: 33rem) and (max-width: 48rem) {
  .cards { column-count: 2; }
  .content { max-width: 33rem; }
}
@media (min-width: 48rem) and (max-width: 63rem) {
  .cards { column-count: 3; }
  .content { max-width: 48rem; }
}
@media (min-width: 63rem) {
  .cards { column-count: 4; }
  .content { max-width: 64rem; }
}

.card {
  width: 14rem;
  min-height: 9rem;
  margin-bottom: 1rem;
  background-color: rgba(0,0,0,0.05);
  border-radius: 1rem;
  position: relative;
  display: inline-block;
  cursor: pointer;
}
/* Using BEM for naming: https://www.geeksforgeeks.org/css/understanding-the-css-bem-convention */
.card__img {
  width: 100%;
  height: 100%;
  min-height:100%;
  border-radius: 1rem;
}
.card__text {
  padding: 1.7rem 1.2rem;
  position: absolute;
  top: 0;
}
.card__text--white {
  color: white;
}
.card__message {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
}