h2 {
    text-align: center;
    margin: 40px 0;
    font-weight: 700;
    color: #333;
    position: relative;
}

    h2::after {
        content: "";
        width: 80px;
        height: 3px;
        background: #4d70a8;
        position: absolute;
        bottom: -10px;
        left: 50%;
        transform: translateX(-50%);
    }

.calendar-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
    margin: 0 auto;
    max-width: 1100px;
}

.year-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 6px 18px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

    .year-card:hover {
        transform: translateY(-8px) scale(1.03);
        box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    }

.year-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    color: #fff;
    background: linear-gradient(135deg, #4d70a8, #49887b);
    box-shadow: inset 0 -4px 8px rgba(0,0,0,0.2);
}

.year-label {
    font-size: 1rem;
    font-weight: 600;
    color: #3b4148;
}
/* Nice hover glow */
.year-card:hover .year-circle {
    background: linear-gradient(135deg, #49887b, #4d70a8);
    box-shadow: 0 0 12px rgba(87,181,142,0.6);
}