@import url('https://fonts.googleapis.com/css?family=Heebo:400,700|Open+Sans:400,700');

:root {
  --color-gray-100: hsl(220, 12%, 98%);
  --color-gray-200: hsl(220, 12%, 90%);
  --color-gray-300: hsl(220, 12%, 85%);
  --color-gray-400: hsl(220, 12%, 65%);
  --color-gray-500: hsl(220, 12%, 45%);
  --color-dark-100: hsl(240, 10%, 15%);
  --color-dark-200: hsl(240, 10%, 12%);
  --color-dark-300: hsl(240, 10%, 9%);
  --color-dark-400: hsl(240, 10%, 6%);
  --color-dark-500: hsl(240, 10%, 3%);
  --color-blue-300: hsl(217, 80%, 55%);
  --shadow-medium: rgba(0, 0, 0, 0.1) 0px 4px 6px -1px,
                   rgba(0, 0, 0, 0.06) 0px 2px 4px -1px;
}


.section {
  max-width: 75rem;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ========================= */
/* CARDS                     */
/* ========================= */

.cards-wrapper {
  display: grid;
  justify-content: center;
  align-items: center;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: 2rem 1.5rem;
}

.card {
  font-family: "Heebo", sans-serif;
  --bg-filter-opacity: 0.5;

  background-image:
    linear-gradient(
      rgba(0, 0, 0, var(--bg-filter-opacity)),
      rgba(0, 0, 0, var(--bg-filter-opacity))
    ),
    var(--bg-img);

  height: 16em;
  width: 13.2em;
  font-size: 1.5em;
  color: var(--color-gray-100);
  border-radius: 1em;
  padding: 1em;

  display: flex;
  align-items: flex-end;

  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-medium);
  border: 1px solid rgba(255, 255, 255, 0.08);

  text-decoration: none;
  position: relative;
  overflow: hidden;

  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease;
}

.card:hover {
  transform: translateY(-10px) scale(1.00);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  --bg-filter-opacity: 0.65;
}

/* Typography */
.card h1 {
  margin: 0;
  font-size: 1.4em;
  line-height: 1.2;
}

.card p {
  font-family: "Open Sans", sans-serif;
  font-size: 0.75em;
  margin-top: 0.5em;
  line-height: 1.6;
}

/* Tags */
.card .tags {
  display: flex;
  gap: 0.5em;
}

.card .tag {
  font-size: 0.7em;
  padding: 0.15em 0.5em;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 0.3rem;
}

/* Date */
.card .date {
  position: absolute;
  top: 0.75em;
  right: 0.75em;
  font-size: 0.7em;
  opacity: 0.75;
}

/* Number */
.card-grid-space .num {
  font-size: 3em;
  margin-bottom: 1rem;
  margin-left: 1rem;
  opacity: 0.7;
}

/* ========================= */
/* RESPONSIVE                */
/* ========================= */

@media (max-width: 1285px) {
  .cards-wrapper {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .cards-wrapper {
    grid-template-columns: 1fr;
  }

  .card-grid-space .num {
    margin-left: 0;
    text-align: center;
  }
}

@media (max-width: 500px) {
  .card {
    max-width: calc(100vw - 3rem);
  }
}