.calendar {
    margin: 0 auto;
    text-align:center; 
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-height: 100vh;
    height: auto;
    max-width: 80rem;
    width: 100%;
    padding: 2rem 1.5rem;   
}

.calendar-hero {
    text-align: center;
    padding: 2rem 1.5rem 0rem 1.5rem;
}

.calendar-controls {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 1rem;
    margin: 0rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.checkbox-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.calendar-item {
    display: flex;
    align-items: center;
    background: #0f0f1e;
    padding: 1.0rem 1.8rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--cal-theme); 
    font-size: 0.95rem;
}

.calendar-item:hover {
    background: var(--cal-theme);
    color: #fff;
}

.calendar-frame-container {
    background: #0b0c1a;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 0 500rem rgba(0, 0, 0, 0.5);
}