*, *::before, *::after {
    box-sizing: border-box;

    font-family: monospace;

    user-select: none;
    -webkit-user-select: none;
    cursor: default;
}

:root {
    --color-dark: #192224;
    --color-charcoal: #36494E;
    --color-light: #CED3DC;
    --color-red: #931F1D;
    --color-blue: #597081;
}

body {
    height: calc(100vh - 20px);
    min-width: 880px;
    margin: 0;

    position: relative;

    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;

    background-color: var(--color-dark);
}

#head {
    width: 100%;
    padding: 20px 60px;
    margin: 30px;

    text-align: left;
    letter-spacing: 8px;
    font-weight: bold;
    text-shadow: 3px 3px 0 var(--color-charcoal);
    text-transform: uppercase;
    color: var(--color-light);
    font-size: 45px;
}

#state {
    font-size: 18px;
    color: var(--color-light)
}

#state span {
    padding: 10px 0;
}

#menu {
    position: absolute;
    top: 30%;
    z-index: 1;
    margin: auto 0;
    padding: 20px;
    width: 300px;

    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;

    color: var(--color-dark);
    background-color: var(--color-light);
    box-shadow: 0 0 2px var(--color-charcoal);
    border-radius: 2px;
}

#menu.hidden {
    display: none;
}

#message {
    width: 90%;
    text-align: center;
    margin-bottom: 10px;
}

#startButton {
    padding: 10px;

    cursor: pointer;

    border-radius: inherit;
    box-shadow: inherit;
}

#minefieldContainer {
    width: 100%;
    margin: 40px 0 0 0;
    padding: 40px 0;

    display: flex;
    justify-content: center;
}

#minefield {
    --s: 40px;
    --m: 2px;
    --f: calc(1.732 * var(--s) + 4 * var(--m) - 1px);

    width: 878px;
    height: 716px;
    padding: 20px;

    font-size: 0;

    border-radius: 10px;
}

#minefield::before {
    content: "";

    width: calc(var(--s)/2 + var(--m));
    height: 120%;

    float: left;


    shape-outside: repeating-linear-gradient(
            #0000 0 calc(var(--f) - 3px),
            #000  0 var(--f));
}

.field {
    width: var(--s);
    height: calc(var(--s)*1.1547);
    margin: var(--m);
    margin-bottom: calc(var(--m) - var(--s)*0.2885);
    padding: 0;

    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;

    cursor: pointer;
    font-family: monospace;

    clip-path: polygon(0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%, 50% 0%);
    background-color: var(--color-light);
}

.field::after {
    content: "";
    width: 100%;
    height: 100%;

    position: absolute;
    top: -2px;
    left: -4px;
    z-index: -1;

    background: var(--color-charcoal);
    clip-path: polygon(0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%, 50% 0%);
}

.field:hover {
    transform: scale(1.1);
    background-color: var(--color-red);
}

.field.uncovered {
    transition: all .4s ease-in-out;
    background-color: var(--color-blue);
}

.field.uncovered::after {
    background-color: var(--color-blue);
}

.field.uncovered::before {
    content: attr(data-mines);
    position:absolute;
    top: 16px;
    z-index: 0;
    margin: 0 auto;

    display:inline-block;

    font-size: 15px;
    font-weight: bold;
}

footer {
    position: fixed;
    bottom: 0;

    width: 100%;
    height: 20px;
    padding: 4px;

    color: var(--color-charcoal);
    text-align: right;
    font-size: 10px;
}

footer a {
    color: var(--color-charcoal);
}