/* DEFAULT VARIABLES */
body {
    --block-text-color: #222;
    --block-background-color: #fff;
    --block-accent-color: #00ae86;
    --block-shadow-color: #444;
}

/* BASIC BLOCK STYLES */
.block {
    display: block;
    color: var(--block-text-color);
    border: 3px solid var(--block-text-color);
    border-radius: 3px;
    padding: 4px 8px;
    background: var(--block-background-color);
    font-weight: bold;
    cursor: pointer;
    box-sizing: border-box;

    position: relative;
    top: -2px;
    left: -2px;
    transition: transform 0.2s;
    margin: 8px 6px 10px 6px;
    z-index: 1;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
}

.block.wrapper,
.block.wrapper.inline {
    display: inline-block;
    padding: 0;
}

.block.wrapper > * {
    margin: 0;
}

/* INTERACTIVE BLOCK STYLES */
.block::before {
    content: "";
    background: var(--block-background-color);
    border: 3px solid var(--block-text-color);
    border-radius: 3px;
    box-sizing: border-box;
    position: absolute;
    top: -3px;
    left: -3px;
    height: calc(100% + 6px);
    width: calc(100% + 6px);
    z-index: -1;
}

.block:hover,
.block:focus {
    transform: translate(2px, 2px);
}

.block::after {
    content: "";
    display: block;
    box-sizing: border-box;
    background: var(--block-shadow-color);
    border: 3px solid var(--block-text-color);
    border-radius: 3px;
    height: calc(100% + 6px);
    width: calc(100% + 6px);
    position: absolute;
    top: 3px;
    left: 3px;
    right: 0;
    z-index: -2;
    transition: transform 0.2s;
}

.block:hover::after,
.block:focus::after {
    transform: translate(-2px, -3px);
}

.block:active {
    color: var(--block-text-color);
    transform: translate(3px, 3px);
}

.block:active::after {
    transform: translate(-4px, -4px);
}

.block:focus {
    outline: none;
}

.block.fixed {
    cursor: initial !important;
}

/* FIXED STYLES */
.block.fixed:hover,
.block.fixed:hover::before,
.block.fixed:hover::after,
.block.fixed:active,
.block.fixed:active::before,
.block.fixed:active::after,
.block.fixed:focus,
.block.fixed:focus::before,
.block.fixed:focus::after {
    transform: none !important;
}

/* ACCENT STYLES */
.block.accent {
    color: var(--block-background-color);
    background: var(--block-accent-color);
}

.block.accent::before {
    background: var(--block-accent-color);
}

/* INLINE STYLES */
.block.inline {
    display: inline-block;
    font-size: 0.75em;
    padding: 0 6px;
    margin: 3px 2px 1px 4px;
}
.block.inline::after {
    top: -1px;
    left: -1px;
}
.block.inline:hover,
.block.inline:focus {
    transform: translate(1px, 1px);
}
.block.inline:hover::after,
.block.inline:focus::after {
    transform: translate(-1px, -1px);
}
.block.inline:active {
    transform: translate(2px, 2px);
}

/* ROUND STYLES */
.block.round,
.block.round::before,
.block.round::after {
    border-radius: 30px;
}

.block.round::after {
    left: 1px;
}