ul.topic-list,
ul.material-list {
  list-style: none;
}

/**
 * CSS Variables
 */
:root {
  --primary-blue: #2196F3;
  --primary-blue-dark: #1976D2;
  --primary-blue-darker: #1565C0;
  --text-primary: #212121;
  --text-secondary: #666;
  --border-light: #e8e8e8;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/**
 * page layout
 */

.header, .log, .container {
  margin-bottom: 1rem;
}

.footer {
  text-align: center;
  font-size: 0.875rem;
}

#logcontent {
  padding: 0.5rem;
  overflow-y: auto;
  max-height: 10rem;
}

.container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.container > * {
  flex: 1;
  min-width: 20rem;
}

.card, .header {
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  background: white;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
}
.header {
  border: 0px;
  box-shadow: none;
  border-style: none;
}

.card-title, .header-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.header-title {
  color: var(--primary-blue-darker);
}

.card-description, .header-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0 0 0.5rem 0;
}
.header-description {
  color: var(--primary-blue);
}

/**
 * classroom content
 */

.topic-toggle {
  border: none;
  background: transparent;
  color: #000;
  cursor: pointer;
  padding: 0;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
}

li[data-js-role="topic-item"] {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.material-list {
  flex-basis: 100%;
  margin-left: 1.5rem;
}

label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

input[type="checkbox"],
input[type="checkbox"]:checked {
  accent-color: var(--primary-blue);
  cursor: pointer;
  vertical-align: middle;
  flex-shrink: 0;
}

.material-symbols-outlined {
  vertical-align: middle;
  flex-shrink: 0;
}

.draft {
  opacity: 0.5;
}

/**
 * settings
 */

.settings-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.switch-row {
  gap: 1rem;
  cursor: pointer;
}

.switch-box {
  appearance: none;
  width: 1.76rem;
  height: 0.96rem;
  border-radius: 999px;
  background-color: #c7c7c7;
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.2s;
}

.switch-box::before {
  content: "";
  position: absolute;
  width: 0.72rem;
  height: 0.72rem;
  left: 0.12rem;
  top: 0.12rem;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
}

.switch-box:checked {
  background-color: var(--primary-blue);
}

.switch-box:checked::before {
  transform: translateX(0.8rem);
}

.switch-box:focus-visible {
  outline: 2px solid var(--primary-blue-dark);
  outline-offset: 2px;
}

/**
 * links
 */

a, a:visited {
  color: var(--text-secondary);
}

a::after {
  display: inline-block;
  content: 'open_in_new';
  font-family: 'Material Symbols Outlined';
  margin-left: 0.25rem;
}

/**
 * buttons
 */

button {
  background-color: var(--primary-blue);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 0.2s, box-shadow 0.2s;
}

button:hover {
  background-color: var(--primary-blue-dark);
  box-shadow: 0 2px 8px rgba(33, 150, 243, 0.3);
}

button:active {
  background-color: var(--primary-blue-darker);
}

button.secondary {
  background-color: transparent;
  color: var(--primary-blue);
  border: 1px solid var(--primary-blue);
}

button.secondary:hover {
  background-color: rgba(33, 150, 243, 0.1);
  box-shadow: 0 2px 8px rgba(33, 150, 243, 0.2);
}

button.secondary:active {
  background-color: rgba(33, 150, 243, 0.2);
}

/**
 * more
 */