html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

.navbar {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.navbar-nav .nav-link {
    font-weight: 600;
    font-size: 1.1rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

    .navbar-nav .nav-link:hover {
        opacity: 0.8;
    }

.week-block {
    margin-bottom: 2rem;
    padding: 1rem;
    border: 1px solid #ccc;
    background-color: #f8f9fa; /* subtle grey */
    border-radius: 4px;
}

.week-header {
    font-weight: 600;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #999;
}

.level-scroll {
    max-height: 180px;
    overflow-y: auto;
    height: auto;
    padding: 0.5rem 0.75rem;
}

.level-grid {
    display: grid;
    grid-template-columns: 1fr;
    row-gap: 0.25rem;
}

@media (max-width: 576px) {
    .level-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}