.class-switcher {
  display: grid;
  gap: 5px;
  min-width: 180px;
}
.class-switcher label {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.class-switcher select {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  padding: 9px 34px 9px 11px;
  font-weight: 800;
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.calendar-title { margin: 0; }
.calendar-controls { display: flex; gap: 8px; }
.calendar-button {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 11px;
  padding: 8px 11px;
  cursor: pointer;
  font-weight: 850;
}
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.calendar-weekday {
  padding: 11px 8px;
  text-align: center;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: .75rem;
  font-weight: 900;
  text-transform: uppercase;
}
.calendar-day {
  min-height: 112px;
  padding: 9px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  overflow: hidden;
}
.calendar-day:nth-child(7n) { border-right: 0; }
.calendar-day.outside { background: #fafbfc; color: #a1a9b7; }
.calendar-day.today { box-shadow: inset 0 0 0 2px var(--primary); }
.calendar-number { font-size: .83rem; font-weight: 900; }
.calendar-entry {
  display: block;
  margin-top: 5px;
  padding: 5px 6px;
  border: 0;
  width: 100%;
  text-align: left;
  border-radius: 7px;
  font-size: .68rem;
  font-weight: 800;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: var(--primary-soft);
  color: var(--primary);
  cursor: pointer;
}
.calendar-entry.exam { background: var(--danger-soft); color: var(--danger); }
.calendar-entry.project { background: #eee8ff; color: #6941b4; }
.calendar-entry.event { background: var(--warning-soft); color: var(--warning); }
.calendar-entry.lesson { background: var(--success-soft); color: var(--success); }

.weekly-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}
.weekly-day {
  min-height: 220px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 18px;
  padding: 15px;
  box-shadow: var(--shadow);
}
.weekly-day h3 { margin-bottom: 12px; }
.weekly-entry {
  padding: 11px;
  border-radius: 13px;
  background: var(--surface-soft);
  margin-bottom: 9px;
}
.weekly-entry strong, .weekly-entry span { display: block; }
.weekly-entry span { color: var(--muted); font-size: .78rem; margin-top: 3px; }
.weekly-entry p { margin: 7px 0 0; font-size: .82rem; }

.library-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.resource-library-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.library-card {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.library-card .category-label {
  color: var(--primary);
  font-size: .73rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.library-card h3 { margin: 0; }
.library-card p { color: var(--muted); margin-bottom: 4px; }
.library-card a {
  margin-top: auto;
  display: inline-flex;
  width: fit-content;
  border-radius: 10px;
  padding: 8px 11px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 850;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}
.quick-link-card {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 17px;
  padding: 16px;
  cursor: pointer;
  text-align: left;
  box-shadow: var(--shadow);
}
.quick-link-card strong { display: block; }
.quick-link-card span { color: var(--muted); font-size: .82rem; }

@media (max-width: 1100px) {
  .weekly-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .resource-library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .topbar { align-items: flex-start; padding-top: 18px; }
  .topbar-actions { flex-direction: column; align-items: flex-end; }
  .class-switcher { min-width: 150px; }
  .calendar-grid { font-size: .9rem; }
  .calendar-day { min-height: 78px; padding: 5px; }
  .calendar-entry { font-size: .58rem; padding: 4px; }
  .weekly-grid, .resource-library-grid, .quick-links { grid-template-columns: 1fr; }
  .weekly-day { min-height: 0; }
  .mobile-nav { grid-template-columns: repeat(5, 1fr); }
}