html, body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  color: #FFFFFF;
  background-color: #1c1719;
}

input {
  padding: 1rem;
  background-color: #1c1719;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

button {
  padding: 1rem 1.5rem;
  font-size: 0.9rem;
}

header {
  padding: 1rem;
}

footer > p {
  padding: 0.5rem 1rem;
}

main {
  flex-grow: 1;
  padding: 0 1rem;
}

.card {
  position: relative;
  background-color: #2a2226;
  padding: 1.5rem 2rem 1.5rem 2rem;
  border-radius: 4px 0 0 4px;
}

.card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 8px;
  border-radius: 4px 0 0 4px;
}

.card:nth-child(1)::before {
  background-color: #f6a;
}

.card:nth-child(2)::before {
  background-color: #86e;
}

.card:nth-child(3)::before {
  background-color: #88b300;
}

.card:nth-child(4)::before {
  background-color: #fc2;
}

hr {
  border-color: rgba(255, 255, 255, 0.1);
}

p {
  padding-left: 0;
}

.card-list {
  max-width: 1200px;
  margin: 0 auto;
}

.card-list > .card {
  margin-bottom: 1.5rem;
}

.flex {
  display: flex;
}

.column {
  flex-direction: column;
}

.wrap {
  flex-wrap: wrap;
}