body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f4f8ff, #d9eaff);
    color: #333;
}

header {
    background: #4a85ff;
    color: white;
    padding: 20px 40px;
    font-size: 26px;
    font-weight: bold;
    text-align: center;
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

main {
    max-width: 900px;
    margin: 40px auto;
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

#monthDisplay {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: center;
}

button {
    display: block;
    margin: 0 auto;
    padding: 15px 30px;
    font-size: 18px;
    background: #4a85ff;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.2s;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

button:hover {
    background: #3467d8;
    transform: scale(1.03);
}

button:active {
    transform: scale(0.98);
}

#rabbitContainer {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    padding: 10px;
}

.rabbit {
    font-size: 36px;
    background: #eef4ff;
    padding: 10px 14px;
    border-radius: 12px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.15);
    user-select: none;
    transition: transform 0.15s;
}

.rabbit:hover {
    transform: scale(1.15) rotate(3deg);
}