* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {

    --color-true-black: #000;
    --color-black: #121A1D;
    --color-black-60: #121A1D9c;
    --color-grey: #808080;
    --color-light-grey: #adadad;
    --color-lighter-grey: #cdcdcd;
    --color-dark-blue: #084C61;
    --color-blue: #3C89AA;
    --color-light-blue: #56A3A6;
    --color-green: #63D166;
    --color-red: #DB504A;
    --color-yellow: #E3B505;
    --color-white: #FAF4EA;
    --color-true-white: #fff;

    --font-title: 'Grotesk';
    --font-text: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    --font-minesweeper: "minesweeper";

    --cell-size: 30px;
    --cell-border-size: 4px;
    --mine-found-bg-color: #ff0000;

    --background-image: url("../../media/image/background.webp")
}

/* GENERAL */

html {
    height: 100%;
}

body {
    height: 100%;
    display: flex;
    flex-direction: column;
    background: var(--background-image);
    background-size: cover;
}

h1 {
    font-family: var(--font-minesweeper);
    font-weight: 400;
    font-size: 1.2rem;
    color: var(--color-white);
}

/* HEADER */
header {
    /* position */
    width: 100%;
    height: auto;
    padding: 1rem;
    /* display */
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* color */
    background-color: var(--color-dark-blue);
}

.minesweeper__backToHub {
    text-align: center;
    transition: all 0.2s ease;
}

.minesweeper__backToHub:hover {
    -webkit-mask-image: linear-gradient(
        -75deg,
        var(--color-black) 20%,
        var(--color-black-60) 50%,
        var(--color-black) 80%
    );
    -webkit-mask-size: 200%;
    animation: shine 1.5s infinite;
}

.minesweeper__backToHub > h2 {
    font-family: var(--font-title);
    font-weight: 400;
    font-size: 1.5rem;
    color: var(--color-white);
}

/* MAIN */
main {
    /* position */
    height: 100%;
    width: 100%;
    /* display */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: start;
    padding: 1rem;
}


.minesweeper__title {
    font-family: 'minesweeper';
    font-size: 1.25rem;
    text-align: center;
}
.minesweeper__menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 2rem 0;
    gap: 1.5rem;
}
.minesweeper__menu li {
    width: 100%;
    height: auto;
}
.minesweeper__menu a {
    display: block;
    width: 100%;
    height: fit-content;
    padding: 1rem 4rem;
    font-family: 'minesweeper';
    text-align: center;
    cursor: pointer;

    color: #000;
    background-color: var(--color-lighter-grey);
    border: 0.5rem outset var(--color-lighter-grey);
    color: #000;
    font-size: 1rem;
}
.minesweeper__menu a:active {
    border-style: inset;
}
.minesweeper__menu a.easy {
    color: #0000ff;
}
.minesweeper__menu a.normal {
    color: #007b00;
}
.minesweeper__menu a.hard {
    color: #ff0000;
}











@media (min-width: 600px) {
    h1 {
        font-size: 2.5rem;
    }
    .minesweeper__backToHub>h2 {
        font-size: 2.5rem;
    }

    .minesweeper__title {
        font-size: 1.5rem;
    }
    .minesweeper__menu a {
        font-size: 1.75rem;
    }
}