body {
  background-color: #121212;
  font-family: "Lucida Grande", Verdana, Arial, Helvetica, sans-serif;
}
main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.header {
  display: flex;
  justify-content: space-between;
  width: 400px;
  font-size: 28px;
  color: #eee;
}

.info {
  text-decoration: none;
}

.bingo-board {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  width: 400px;
  height: 400px;
}

small {
  font-size: 12px;
  color: #444;
}

.footer {
  display: flex;
  justify-content: center;
}

.bingo-button {
  background-color: #242424;
  border-color: #242424;
  border-radius: 4px;
  border-style: solid;
  font-size: 20pt;
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  filter: grayscale(100%);
  transition: all 150ms ease-in-out;
}
.bingo-button.done {
  filter: none;
  background-color: #555555;
  border-color: #777777;
}
.bingo-button.bingo {
  background-color: #007388;
  border-color: #23cae7;
}

.bingo-button:hover {
  filter: none;
  background-color: #555555;
  border-color: #555555;
}
.bingo-button.done:hover {
  background-color: #777777;
  border-color: #777777;
}
.bingo-button.bingo:hover {
  background-color: #00a6c4;
  border-color: #23cae7;
}

/* ------------- Card Modal CSS ------------- */
/* Background blurring + card modal container */
.overlay {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: all 200ms ease-in-out;
  visibility: hidden;
  opacity: 0;
}

/**
 * Triggered when one of the bingo squares is clicked.
 * This takes advantage of the :target pseudo-class that
 * allows us to style elements based on the hash portion
 * of the URL (eg. https://crump.space/bingo2024#modal1).
 */
.overlay:target {
  visibility: visible;
  opacity: 1;
  backdrop-filter: blur(2px);
}

.card {
  padding: 20px;
  background: #fff;
  border-radius: 6px;
  width: 70%;
  max-width: 350px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 200ms ease-in-out;
  max-height: 80vh;
  overflow: scroll;
}

.card h2 {
  margin-top: 0;
  margin-right: 32px;
}
.card .close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 24px;
  text-decoration: none;
  filter: grayscale(100%);
  transition: all 200ms ease-in-out;
}
.card .close:hover {
  filter: none;
}
.card .content {
  overflow: auto;
}