* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #212121;
  color: #212121;
  font-family: Georgia, serif;
  font-size: 1.3125rem;
  font-smooth: antialiased;
  line-height: 1.58;
}

p {
  margin-top: 1.8125rem;
}

a {
  color: #007bff;
}

ul {
  margin-top: 1.8125rem;
  margin-left: 3.5rem;
}

img {
  display: block;
  height: auto;
  margin-top: 1.8125rem;
  width: 100%;
}

details.week {
  background-color: #f5f5f5;
  border: 1px solid #eeeeee;
  border-bottom: none;
  border-top: none;
  padding: 2.5rem;
}

details.week:first-of-type {
  border-top: 1px solid #eeeeee;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
}

details.week:last-of-type {
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  border-bottom: 1px solid #eeeeee;
}

details > details {
  padding: 2.5rem;
  background-color: #ffffff;
  border-left: 1px solid #eeeeee;
  border-right: 1px solid #eeeeee;
  border-top: 1px solid #eeeeee;
}

details > details:first-of-type {
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  margin-top: 2.5rem;
}

details > details:last-of-type {
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  border-bottom: 1px solid #eeeeee;
}

details > details summary {
  font-size: 2.5rem;
}

summary {
  cursor: pointer;
  font-size: 3.5rem;
  font-weight: 500;
  line-height: 4rem;
}

summary::-webkit-details-marker {
  display: none;
}

.wrapper {
  margin: 5rem auto;
  max-width: calc(45rem + 5rem);
  width: 90%;
}

.hex-code {
  background-color: #f5f5f5;
  border-radius: 0.1875rem;
  font-family: monospace;
  padding: 0.25rem 0.5rem;
  white-space: nowrap;
}

.hex-code::before {
  border-radius: 50%;
  content: '';
  display: inline-block;
  height: 0.875rem;
  margin-right: 0.25rem;
  width: 0.875rem;
}

.code-FF015D.hex-code::before {
  background-color: #FF015D;
}

.code-3D195B.hex-code::before {
  background-color: #3D195B;
}

.code-5D085C.hex-code::before {
  background-color: #5d085c;
}

.code-9E2E4E.hex-code::before {
  background-color: #9e2e4e;
}

.code-09012f.hex-code::before {
  background-color: #09012f;
}

.code-6a00f5.hex-code::before {
  background-color: #6a00f5;
}