* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #2c3e50;
}

.calendar-card {
    display: flex;
    width: 250px;
    height: 200px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    background-color: #fff;
}

.date-section {
    flex: 1;
    background-color: #f1f1f1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.day-number {
    font-size: 48px;
    font-weight: bold;
    color: #2c3e50;
}

.day-name {
    font-size: 18px;
    color: #7f8c8d;
}

.month-year-section {
    flex: 1;
    background-color: #e74c3c;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
}

.month {
    font-size: 24px;
    font-weight: bold;
}

.year {
    font-size: 18px;
}