:root {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  background-color: #121212;
  color: white;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 1.5rem;
}

main {
  max-width: 640px;
  margin: 0 auto;
}

h1, h2 {
  color: #bb86fc;
}

h1 {
  margin-top: 0;
}

#day-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.pill {
  border: 1px solid #bb86fc;
  background: transparent;
  color: #bb86fc;
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.95rem;
  cursor: pointer;
  font-family: inherit;
}

.pill:disabled {
  border-color: #444;
  color: #666;
  cursor: not-allowed;
}

.pill.selected {
  background: #bb86fc;
  color: #121212;
  font-weight: bold;
}

.pill .pill-date {
  display: block;
  font-size: 0.7rem;
  opacity: 0.8;
}

section.course h2 {
  margin-bottom: 0.4rem;
}

ul {
  list-style-type: none;
  padding-left: 0;
  margin-top: 0;
}

li {
  padding: 5px 0;
}

li.repeated {
  color: #ffd479;
}

.badge {
  display: inline-block;
  margin-left: 0.5rem;
  font-size: 0.72rem;
  background: #ffd479;
  color: #121212;
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  font-weight: bold;
  vertical-align: middle;
}

.empty {
  color: #888;
  font-style: italic;
}

.legend {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: #999;
}

.legend .badge {
  margin-left: 0;
  margin-right: 0.3rem;
}

a {
  color: #bb86fc;
}