:root {
  --bg: oklch(95% 0 0);
  --fg: oklch(5% 0 0);
  --red-bg: oklch(80% 0.15 25);
  --red-fg: oklch(40% 0.15 25);
  --green-bg: oklch(80% 0.15 145);
  --green-fg: oklch(40% 0.15 145);
  --blue-bg: oklch(80% 0.15 250);
  --blue-fg: oklch(40% 0.15 250);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: oklch(5% 0 0);
    --fg: oklch(95% 0 0);
    --red-bg: oklch(40% 0.15 25);
    --red-fg: oklch(80% 0.15 25);
    --green-bg: oklch(40% 0.15 145);
    --green-fg: oklch(80% 0.15 145);
    --blue-bg: oklch(40% 0.15 250);
    --blue-fg: oklch(80% 0.15 250);
  }
}
body {
  margin: 0 auto;
  max-width: 512px;
  background-color: var(--bg);
  color: var(--fg);
  font-family: monospace;
  font-size: 1.2rem;
  padding: 4px;
}
h1 {
  text-align: center;
}
footer {
  font-size: 0.75rem;
}
form {
  margin-top: 48px;
}
label, input, button {
  font-family: monospace;
  font-size: 1rem;
  padding: 4px;
}
table {
  margin: 0 auto;
}
th {
  font-weight: normal;
}
#failed-add {
  display: flex;
  justify-content: center;
  input {
    width: 4.5ch;
    text-align: center;
    margin: 8px;
  }
  button {
    margin: 8px;
  }
}
#failed-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.chip {
  display: inline-block;
  height: 24px;
  border-radius: 24px;
  line-height: 24px;
  padding: 2px 6px;
  margin: 4px;
}
.failed {
  background-color: var(--red-bg);
  color: var(--red-fg);
  button {
    all: unset;
    svg {
      height: 1em;
      color: var(--red-fg);
      vertical-align: middle;
    }
  }
}
button[type="submit"] {
  display: block;
  margin: 12px auto;
  min-width: 20%;
}
#solutions {
  text-align: center;
  display: none;
  p {
    margin: auto;
  }
}
#solutions-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.solution {
  background-color: var(--blue-bg);
  color: var(--blue-fg);
}
.login-group {
  margin: 12px auto;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
table#sessions {
  font-size: 0.8rem;
  border-collapse: collapse;
  td {
    border: 1px solid var(--fg);
  }
}