:root {
    --colour01: #FFFFFF; /* White */
    --colour02: #000000; /* Black */
    --colour03: #808080; /* Gray */
    --colour04: #ffa500; /* Orange */
}

body {
    font-family: 'Fjalla One', 'Cantarell', sans-serif;
    background-color: var(--colour01);
    color: var(--colour02);
    margin: 0;
    padding: 0;
}

.kpm-container {
    padding: 20px;
    overflow-y: auto;
    height: 100vh; /* Make sure the container is scrollable */
}

.kpm-menu-level {
    margin: 10px 0;
}

.kpm-category-button,
.kpm-subcategory-button {
    display: block;
    width: 50vw;
    margin: 10px auto;
    background-color: var(--colour01);
    color: var(--colour02);
    border: 1px solid var(--colour03); /* Border for categories and subcategories */
    padding: 15px;
    text-align: center;
    font-size: 16px;
    cursor: pointer;
}

.kpm-product-button {
    display: block;
    width: 80vw;
    margin: 10px auto;
    background-color: var(--colour01);
    color: var(--colour02);
    border: none; /* Borderless for products */
    padding: 15px;
    text-align: center;
    font-size: 16px;
    cursor: pointer;
}

.kpm-category-button:hover,
.kpm-subcategory-button:hover,
.kpm-product-button:hover {
    background-color: var(--colour04);
    color: var(--colour01);
}

.kpm-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--colour01);
    padding: 20px;
    border: 1px solid var(--colour03);
    display: none;
    z-index: 1000;
    width: 80%;
    height: 80%;
}

.kpm-popup iframe {
    width: 100%;
    height: calc(100% - 50px);
}

.kpm-close-popup {
    background-color: var(--colour04);
    color: var(--colour01);
    padding: 10px;
    border: none;
    cursor: pointer;
    margin-top: 10px;
    width: 100%;
    text-align: center;
}