:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c1f26;
  --text-muted: #5b6270;
  --border: #e3e6ec;
  --accent: #2a5bd7;
  --accent-soft: #e8edfc;
  --radius: 10px;
  --max-width: 880px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 32px 24px;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

.title-block h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
}

.year-switch {
  display: flex;
  align-items: center;
  gap: 8px;
}

.year-switch label {
  font-size: 13px;
  color: var(--text-muted);
}

.year-switch select {
  font-size: 15px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

main {
  padding: 32px 24px 64px;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.meta-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

.meta-value {
  font-size: 16px;
  font-weight: 600;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.card h2 {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: var(--text);
}

.bullet-list {
  margin: 0;
  padding-left: 20px;
}

.bullet-list li {
  margin-bottom: 6px;
}

.schedule-table {
  width: 100%;
  border-collapse: collapse;
}

.schedule-table th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding: 8px 8px;
}

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

.week-cell {
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  width: 110px;
}

.schedule-table .topic {
  font-weight: 600;
}

.schedule-table .detail {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 2px;
}

.schedule-note {
  font-size: 13px;
  color: var(--text-muted);
  margin: -4px 0 12px;
}

.mat-links {
  margin-top: 6px;
  display: flex;
  gap: 12px;
}

.mat-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.mat-link:hover {
  text-decoration: underline;
}

.holiday-row td {
  color: var(--text-muted);
  font-style: italic;
}

.holiday-row .week-cell {
  color: var(--text-muted);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.kv-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.kv-list li {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.kv-list li:last-child {
  border-bottom: none;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
}

.site-footer p {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 600px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .title-block h1 {
    font-size: 22px;
  }
}