html, body {
    margin: 0;
    padding: 0;
}
header {
    width: 100%;
    background-color: #0C2B4E;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 20px;
    height: 60px;
    box-sizing: border-box;
}

.left-block {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.date-left {
    font-size: 16px;
    white-space: nowrap;
}

.lunar-block {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
}

.menu-button {
    font-size: 24px;
    cursor: pointer;
    user-select: none;
}
.logo img {
    height: 40px;
    display: block;
}