.advent-calendar {
    position: relative;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    justify-items: center;
    gap: 48rem;
    margin-top: 50rem;
    z-index: 1;
}

.btn-advent {
    position: absolute;
    bottom: 30rem;
    left: 50%;
    transform: translate(-50%, 0);
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 300rem;
    width: max-content;
    background: none;
    height: 44rem;
    padding: 10rem 15rem;
    border: 1rem solid #fff;
    border-radius: 10rem;
    font-weight: 500;
    font-size: 16rem;
    line-height: 1;
    color: #fff;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    z-index: 2;
}

.btn-advent:hover {
    background: #fff;
    border-color: #fff;
    color: #0086FF;
}

.advent-date-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 420rem;
    width: 100%;
    height: 295rem;
    -webkit-perspective: 1000rem;
    perspective: 1000rem;
    grid-column-end: span 2;
}

.advent-date-container.blocked {
    pointer-events: none;
}

.advent-date-container:not(.blocked):hover .advent-date-flipper,
.advent-date-container.active .advent-date-flipper {
    -webkit-transform: rotateY(-180deg);
    transform: rotateY(-180deg);
}

.advent-date-flipper,
.advent-date-flipper-front,
.advent-date-flipper-back {
    max-width: 420rem;
    width: 100%;
    height: 295rem;
}

.advent-date-flipper {
    -webkit-transition: all 0.6s ease;
    transition: all 0.6s ease;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    position: relative;
}

.advent-date-flipper-front,
.advent-date-flipper-back {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    image-rendering: optimizequality;
    image-rendering: -webkit-optimize-contrast;
    filter: drop-shadow(2rem 2rem 10rem rgba(0, 0, 0, 0.25));
}

.advent-date-flipper-front {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    border-radius: 10rem;
    overflow: hidden;
    cursor: pointer;
    -webkit-transform: rotateY(0deg);
    transform: rotateY(0deg);
    z-index: 2;
}

.advent-date-container.blocked .advent-date-flipper-front {
    opacity: 0.7;
}

.advent-date-flipper-back {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    border-radius: 10rem;
    overflow: hidden;
    -webkit-transform: rotateY(-180deg);
    transform: rotateY(-180deg);
    z-index: 1;
}

.advent-date-container.blocked .advent-date-flipper-back {
    opacity: 0;
}

.advent-date-flipper-back::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 100%;
    height: 100%;
    border-radius: 10rem;
    pointer-events: none;
}

.advent-date-flipper-front img,
.advent-date-flipper-back img {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 100%;
    height: 100%;
    object-fit: cover;
    image-rendering: optimizequality;
    image-rendering: -webkit-optimize-contrast;
    pointer-events: none;
}

.advent-long-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    border-radius: 10rem;
    overflow: hidden;
    grid-column-end: span 6;
    line-height: 0;
}

.advent-long-card img {
    width: 100%;
}

.advent-special-text {
    width: 100%;
    font-weight: 500;
    font-size: 22rem;
    line-height: 1.5;
    color: var(--text-main-color-transparent90);
    grid-column-end: span 6;
}

@keyframes adventGo {
    0% {
        transform: rotate(1deg);
    }

    50% {
        transform: rotate(-1deg);
    }

    100% {
        transform: rotate(1deg);
    }
}

@keyframes adventFlipperGo {
    0% {
        transform: rotateY(3deg);
    }

    50% {
        transform: rotateY(-3deg);
    }

    100% {
        transform: rotateY(3deg);
    }
}

@media (max-width: 480px) {
    .advent-date-container:not(.active, :hover) .advent-date-flipper,
    .advent-date-container.active:hover .advent-date-flipper,
    .advent-date-container:hover .advent-date-flipper {
        -webkit-transform: rotateY(0deg) !important;
        transform: rotateY(0deg) !important;
    }

    .advent-date-container:not(.blocked).active .advent-date-flipper {
        -webkit-transform: rotateY(-180deg) !important;
        transform: rotateY(-180deg) !important;
    }

    .advent-calendar {
        margin-top: 30rem;
        gap: 30rem 0;
    }

    .advent-date-container {
        grid-column-end: span 6;
    }

    .advent-special-text {
        font-size: 14rem;
    }
}