/* Course site extras (used with style.css) */

.course-header {
  background-color: var(--surface);
  padding: 1.75em 1.5em 1em;
  text-align: center;
  border-bottom: none;
}

.course-header h1 {
  margin: 0;
  font-family: 'Source Serif 4', Georgia, Times, serif;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.course-header h1 a {
  color: inherit;
  border-bottom: none;
}

.course-header .course-term {
  display: block;
  margin-top: 0.4em;
  font-family: 'Source Sans 3', Helvetica, sans-serif;
  font-size: 0.95em;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.course-crumb {
  text-align: center;
  font-family: 'Source Sans 3', Helvetica, sans-serif;
  font-size: 0.85em;
  letter-spacing: 0.04em;
  color: var(--light);
  margin-top: 0.75em;
}

.course-crumb a {
  color: var(--muted);
  border-bottom: none;
}

.course-crumb a:hover {
  color: var(--accent);
}

.calendar {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1em;
}

.calendar th,
.calendar td {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1em;
  text-align: left;
  vertical-align: top;
  padding: 0.55em 0.75em 0.55em 0;
  border-bottom: 1px solid var(--rule);
}

.calendar th {
  font-family: 'Source Sans 3', Helvetica, sans-serif;
  font-size: 0.85em;
  letter-spacing: 0.05em;
  color: var(--muted);
  font-weight: 600;
}

.calendar .date {
  white-space: nowrap;
  width: 7.5em;
  color: var(--muted);
  font-family: 'Source Sans 3', Helvetica, sans-serif;
  font-size: 0.95em;
}

.placeholder-note {
  font-style: italic;
  color: var(--muted);
}

@media (max-width: 600px) {
  .calendar .date {
    display: block;
    width: auto;
    margin-bottom: 0.15em;
  }

  .calendar td {
    display: block;
    padding: 0.35em 0;
  }

  .calendar tr {
    display: block;
    padding: 0.65em 0;
    border-bottom: 1px solid var(--rule);
  }

  .calendar thead {
    display: none;
  }
}