:root {
  --brand: #5CBDBD;
  --brand-dark: #4aa9a9;
}
body { background-color: #f8f9fa; }
.navbar { background-color: var(--brand) !important; }
.navbar-brand, .nav-link { color: #fff !important; }
.nav-link.active { font-weight: 600; text-decoration: underline; }
.btn-brand {
  background-color: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.btn-brand:hover {
  background-color: var(--brand-dark);
  border-color: var(--brand-dark);
  color: #fff;
}
.card-header-brand {
  background-color: var(--brand);
  color: #fff;
}
.badge-admitted { background-color: #198754; color: #fff; }
.badge-discharged { background-color: #6c757d; color: #fff; }
.stat-card { border-left: 4px solid var(--brand); }
.table-hover tbody tr:hover { background-color: #e8f7f7; }
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #5CBDBD 0%, #3a9999 100%);
}
.login-card {
  width: 100%;
  max-width: 420px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.section-card { border: 1px solid #dee2e6; border-radius: 8px; margin-bottom: 1rem; }
.section-card .section-card-header {
  background-color: var(--brand);
  color: #fff;
  padding: 0.6rem 1rem;
  font-weight: 600;
  border-radius: 8px 8px 0 0;
}
.section-card .section-card-body { padding: 1rem; }
.footer { background-color: #fff; }