.board {
    font-size: 0px;
    white-space: nowrap;
}

.cell {
    font-size: 18px;
    display: inline-block;
    text-align: center;
    width: 30px;
    height: 30px;
    border: 1px solid #999;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;

    position: relative;
}

.cell.known {
    background: #ccc;
    border-top-color: #ccc;
    border-left-color: #ccc;
    font-weight: bold;
}
.cell.label--7 { color: #ff0000; }
.cell.label--6 { color: #ff0000; }
.cell.label--5 { color: #ff0000; }
.cell.label--4 { color: #ff0000; }
.cell.label--3 { color: #ff0000; }
.cell.label--2 { color: #ff0000; }
.cell.label--1 { color: #ff0000; }
.cell.label-0  {
    background: #aaa;
    border-top-color: #aaa;
    border-left-color: #aaa;
    color: #070707;
}
.cell.label-1  { color: #0000ff; }
.cell.label-2  { color: #008100; }
.cell.label-3  { color: #ee1300; }
.cell.label-4  { color: #000083; }
.cell.label-5  { color: #810500; }
.cell.label-6  { color: #2a9494; }
.cell.label-7  { color: #000000; }
.cell.label-8  { color: #808080; }

.cell.unknown {
    background: #e0e0e0;
    border-top-color: #fff;
    border-left-color: #fff;
    border-right-color: #999;
    border-bottom-color: #999;
}

.cell.hint::before {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    bottom: 3px;
    right: 3px;
    border: 2px solid;
    line-height: 18px;
}

.cell.hint-safe::before { color: #9c9; border-color: #9c9; }
.cell.hint-unknown::before { color: #da0; border-color: #da0; }
.cell.hint-mine::before { color: #e77; border-color: #e77; }

.cell.hint-safe::before { content: "."}  /* bullet */
.cell.hint-unknown::before { content: "?"}  /* bullet */
.cell.hint-mine::before { content: "!"}  /* multiplication X */

.cell.bomb::before, .cell.bomb-win::before, .cell.flag::before { content: ""; }

.cell::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    line-height: 28px;

    /* Force load SVG */
    background: url(sprites.svg) -1px -31px;
}
.cell.label--7::after { content: "-7"; }
.cell.label--6::after { content: "-6"; }
.cell.label--5::after { content: "-5"; }
.cell.label--4::after { content: "-4"; }
.cell.label--3::after { content: "-3"; }
.cell.label--2::after { content: "-2"; }
.cell.label--1::after { content: "-1"; }
.cell.label-0::after  { content:  "0"; }
.cell.label-1::after  { content:  "1"; }
.cell.label-2::after  { content:  "2"; }
.cell.label-3::after  { content:  "3"; }
.cell.label-4::after  { content:  "4"; }
.cell.label-5::after  { content:  "5"; }
.cell.label-6::after  { content:  "6"; }
.cell.label-7::after  { content:  "7"; }
.cell.label-8::after  { content:  "8"; }

.cell.bomb-win::after {
    background: url(sprites.svg) -61px -1px;
}

.cell.flag::after {
    content: "";
    background: url(sprites.svg) -31px -1px;
}

.cell.unsure::after {
    content: "?";
    font-weight: bold;
}

.cell.bomb::after {
    content: "";
    background: url(sprites.svg) -1px -1px;
}

.cell.clickable {
    cursor: pointer;
}

.cell.clickable:hover {
    background: #eee;
}

.buttons {
    margin-top: 1em;
}

h2 {
    margin-top: 1em;
}

#hint.hidden {
    opacity: 0;
    transition-property: opacity;
    transition-duration: 1s;
}