#header {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: #f5f5f5;
    border-bottom: 1px solid #ccc;
    height: 60px;
}

#header-container {
    display: flex;
    gap: 25px;
    align-items: center;
}

button {
    padding: 10px 20px;
    background-color: #007bff;
    border: none;
    border-radius: 5px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
}

button:hover {
    background-color: #0056b3;
    transform: scale(1.05);
    border-radius: 3px;
}

button:active {
    transform: scale(0.95);
    font-size: 16px;
    border-radius: 0px;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}