.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background-color: rgba(255, 255, 255, 0.8); /* Soft, transparent white */
    border-radius: 25px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* Soft shadow for a gentle lift */
    margin: 20px auto;
    max-width: 90%; /* Keep it centered and not too wide */
    border-bottom: 3px solid rgba(200, 200, 200, 0.6); /* Subtle pastel border */
    text-align: center;
}

.header button {
    padding: 10px 18px;
    margin: 0 10px;
    color: #444; /* Softer, muted text color */
    background-color: #f4e1d2; /* Muted pastel button background */
    border: none;
    border-radius: 20px;
    font-weight: bold;
    cursor: pointer;
    font-style: italic;
    transition: all 0.3s ease-in-out;
    box-shadow: 2px 4px 6px rgba(0, 0, 0, 0.15);
}

.header button:hover {
    background-color: #dfc2b0; /* Slightly darker pastel shade */
    transform: scale(1.05);
    box-shadow: 4px 6px 8px rgba(0, 0, 0, 0.25); /* Deeper shadow on hover */
}