home-assistant.io/sass/homeassistant/aside/_buy_dialog.scss

// More specificity
#landingpage .page-content .content {
    .ha-buy-dialog {
        background: rgba(0, 0, 0, 0.4);
        display: none;
        inset: 0;
        padding: 40px;
        place-items: center;
        position: fixed;
        z-index: 1000;

        &.open {
            display: grid;
        }

        &-inner {
            background-color: #ffffff;
            border-radius: 8px;
            display: grid;
            gap: 20px;
            max-width: 624px;
            padding: 20px;
            width: 100%;
        }

        &-header {
            align-items: center;
            display: flex;

            .product-name {
                flex-grow: 1;
                font-size: 20px;

                @include media-query("desk") {
                    font-size: 28px;
                }
            }

            .close {
                align-items: center;
                cursor: pointer;
                display: flex;
                flex-shrink: 0;
            }
        }

        &-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
        }

        &-sidebar {
            background-color: #F0F0F3;
            border-radius: 8px;
            min-width: 140px;
            padding: 12px;

            &-label {
                font-size: 14px;
                font-weight: 700;
                padding-bottom: 8px;
            }

            &-tabs {
                display: flex;
                flex-direction: column;
                gap: 4px;
            }

            &-tab {
                background-color: transparent;
                border-radius: 4px;
                color: #4F606E;
                cursor: pointer;
                font-size: 16px;
                padding: 8px;
                transition: background-color 0.1s;

                &:hover {
                    background-color: #e1e1e1;
                }

                &.active {
                    background-color: #FCFCFF;
                    pointer-events: none;
                    color: #000;
                }
            }
        }

        &-tab {
            &-content-wrapper {
                flex-grow: 1;
                height: 100%;
                max-height: 440px;
                overflow-y: auto;
            }

            &-content {
                display: none;
                flex-direction: column;
                gap: 32px;

                &.active {
                    display: flex;
                }
            }

        }

        &-distributor {
            &-countries {
                display: flex;
                flex-direction: column;
                gap: 18px;
            }

            &-country {
                &-name {
                    align-items: center;
                    display: flex;
                    font-size: 14px;
                    font-weight: 700;
                    gap: 10px;
                    padding-bottom: 12px;
                }

                &-flag {
                    border-radius: 0;
                    height: 8px;
                }

                $letters: "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
                @for $i from 1 through 26 {
                    $letter: str-slice($letters, $i, $i);
                
                    &[data-sort="#{$letter}"] {
                        order: $i;
                    }
                }
            }

            &-items {
                display: flex;
                flex-wrap: wrap;
                gap: 20px;
            }

            &-item {
                border: 1px solid #F0F0F3;
                border-radius: 8px;
                display: flex;
                height: 70px;
                padding: 4px 16px;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                text-align: center;
                transition: background-color 0.1s;
                width: 120px;

                span {
                    font-size: 10px;
                    color: #4F606E;
                }

                img{
                    object-fit: contain;
                    flex-grow: 1;
                }

                &:hover {
                    background-color: #F0F0F3;
                }
            }

            &-logo {
                border-radius: 0;
                max-height: 45px;
            }
        }
    }
}