/* estilização geral */

body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(to right, #10644b,#083d68);
    user-select: none;
}

/* estilização div container */

.container{
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    background: linear-gradient(310deg, #083d68 30%, #117048 70%);
    padding: 40px 60px;
}

h2{
    font-size: 3em;
    color: #dddbdb;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.reset{
    padding: 15px 20px;
    width: 100%;
    color: #000;
    background-color: #fff;
    border: none;
    font-size: 1.5em;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 600;
    cursor: pointer;
}

.reset:focus{
    color: #10644b;
    background-color: #000000;
}

.game{
    width: 430px;
    height: 430px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    transform-style: preserve-3d;
    perspective: 500px;
}

.item{
    position: relative;
    width: 100px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #d4d2d2;
    font-size: 2.5em;
    transform: rotateY(180deg);
    transition: 0.25s;
}

.item::after{
    content: "";
    position: absolute;
    inset: 0;
    background: #1f1f1f;
    transition: 0.25s;
    transform: rotateY(0deg);
    backface-visibility: hidden;
}

.item.boxOpen{
    transform: rotateY(0deg);
}

.boxOpen::after{
    transform: rotateY(180deg);
}


/* Tela de vitória */

.hidden {
    display: none !important;
}

#victoryScreen {
    position: fixed; 
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999; 
}

.victory-content {
    text-align: center;
}

.victory-content h2 {
    color: #fff;
    font-size: 3.5em;
    margin-bottom: 30px;
}

.victory-content button {
    padding: 15px 30px;
    font-size: 1.5em;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #fff;
    color: #10644b;
    font-weight: bold;
    text-transform: uppercase;
}