:root {
  --text: #111;
  --muted: #444;
  --border: #ddd;
  --link: #0645ad;
  --maxw: 980px;
}

body {
  margin: 0;
  padding: 24px 16px 64px;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: #fff;
  line-height: 1.4;
}

a { color: var(--link); }
a:visited { color: #551a8b; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
}

header.course-header {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}

header.course-header img {
  display: block;
  width: 199px;
  height: 92px;
}

h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.15;
}

h2 {
  margin-top: 28px;
  margin-bottom: 10px;
  font-size: 20px;
}

h3 {
  margin-top: 18px;
  margin-bottom: 6px;
  font-size: 16px;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 12px 24px;
  align-items: start;
}

.labels {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  color: var(--muted);
}

.instructors {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 12px 24px;
}

.instructor-card {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.instructor-card .name {
  font-size: 18px;
  margin-bottom: 4px;
}

ul { margin-top: 8px; }
li { margin: 4px 0; }

/* Schedule table styling */
.table-wrap {
  overflow-x: auto;
}

table.schedule {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 18px;
  font-size: 14px;
}

table.schedule th,
table.schedule td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  vertical-align: top;
}

table.schedule th {
  text-align: left;
  background: #fafafa;
  font-weight: 600;
}

.muted { color: var(--muted); }

@media (max-width: 720px) {
  header.course-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid-2 { grid-template-columns: 1fr; }
  .instructors { grid-template-columns: 1fr; }
}