.advent
{
    padding-top: 100px;
    padding-bottom: 120px;
    background: url(../../img/advent/stars.png), url(../../img/advent/pozadi.png);
    background-repeat: repeat, no-repeat;
    background-size: contain, 100% 100%;
}
.advent h1
{
    font-size: 80px;
    color: #fff;
    text-transform: uppercase;
    line-height: 1.2;
}
.advent p.lead
{
    font-size: 1.5rem;
}
#advent-popup p
{
    font-size: 1.1rem;
}
.advent .open-reward-btn
{
    background: linear-gradient(90deg, #ffbd10, #ff9200);
    text-shadow: 2px 2px 6px #000;
    margin: 40px auto 70px;
    font-weight: normal;
}
.advent .advent-rules
{
    color: #fff;
}
.advent .calendar-box, #advent-popup .calendar-box, .advent .calendar-box.unused
{
    display: flex;
    align-items: center;
    justify-content: center;
    background: url(../../img/advent/box-closed.png) no-repeat;
    background-size: cover;
    margin: 0;
    box-shadow: -5px 5px 20px #222;
    backdrop-filter: blur(5px);
}
.advent .calendar-box.current, .advent .calendar-box.current:hover
{
    background: url(../../img/advent/box-current.png) no-repeat;
    background-size: cover;
}
.advent .calendar-box.opened, .advent .calendar-box.opened:hover, #advent-popup .calendar-box
{
    background: url(../../img/advent/box-opened.png) no-repeat;
    background-size: cover;
}
.advent .calendar-box.opened::before, .advent .calendar-box.opened::after,
#advent-popup .calendar-box::before, #advent-popup .calendar-box::after
{
    display: none;
}
.advent .calendar-box .number, .advent .calendar-box.unused .number
{
    color: #fff;
    font-family: 'Arial', sans-serif;
    text-shadow: 2px 2px 6px #000;
}
.advent .calendar-box .number.left
{
    margin-left: -5px;
}
.advent .calendar-box .number.right
{
    margin-right: -5px;
}
.advent .calendar-box img, #advent-popup .calendar-box img
{
    width: 90px;
    height: 90px;
    left: 55px;
    top: 55px;
}
@media(max-width: 768px)
{
    .advent
    {
        padding-top: 60px;
        padding-bottom: 100px;
    }
    .advent h1
    {
        font-size: 48px;
    }
    .advent p.lead
    {
        font-size: 20px;
    }
}
@media(max-width: 500px)
{
    .advent .advent-rules
    {
        bottom: 0;
    }
    #advent-popup .calendar-box img
    {
        width: 90px;
        height: 90px;
        left: 35px;
        top: 35px;
    }
}