.csfb-board {
    --csfb-tile-width: clamp(36px, 7vw, 56px);
    --csfb-tile-height: calc(var(--csfb-tile-width) * 1.38);
    --csfb-gap: clamp(4px, 0.8vw, 7px);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    max-width: 100%;
    font-family: Arial, Helvetica, sans-serif;
}

.csfb-digits {
    display: flex;
    justify-content: center;
    gap: var(--csfb-gap);
    max-width: 100%;
    perspective: 700px;
}

.csfb-tile {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--csfb-tile-width);
    height: var(--csfb-tile-height);
    overflow: hidden;
    border-radius: 4px;
    background:
        linear-gradient(to bottom, #202020 0%, #171717 49.5%, #0c0c0c 50.5%, #191919 100%);
    box-shadow:
        0 2px 4px rgba(0, 0, 0, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
    transform-origin: center center;
}

.csfb-digit {
    position: relative;
    z-index: 2;
    color: #fff;
    font-family: "Arial Narrow", "Roboto Condensed", Arial, sans-serif;
    font-size: calc(var(--csfb-tile-height) * 0.63);
    font-weight: 300;
    line-height: 1;
    letter-spacing: -0.06em;
    text-shadow: 0 1px 1px rgba(0,0,0,.75);
    transform: translateX(-0.02em);
}

.csfb-seam {
    position: absolute;
    z-index: 3;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background: rgba(0, 0, 0, 0.78);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
    pointer-events: none;
}

.csfb-tile.csfb-flipping {
    animation: csfb-tile-flick 95ms ease-in-out;
}

.csfb-tile.csfb-flipping .csfb-digit {
    animation: csfb-digit-flick 95ms ease-in-out;
}

@keyframes csfb-tile-flick {
    0%   { transform: rotateX(0deg); filter: brightness(1); }
    45%  { transform: rotateX(-10deg); filter: brightness(.72); }
    100% { transform: rotateX(0deg); filter: brightness(1); }
}

@keyframes csfb-digit-flick {
    0%   { transform: translateX(-0.02em) translateY(0); opacity: 1; }
    48%  { transform: translateX(-0.02em) translateY(5%); opacity: .6; }
    100% { transform: translateX(-0.02em) translateY(0); opacity: 1; }
}

.csfb-caption-row {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    margin-top: clamp(7px, 1.2vw, 11px);
    transform: translateX(13px);
}

.csfb-label {
    color: #111;
    font-family: "Arial Narrow", "Roboto Condensed", Arial, sans-serif;
    font-size: clamp(13px, 2.5vw, 19px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.035em;
    white-space: nowrap;
}

.csfb-arrow {
    display: inline-block;
    width: clamp(37px, 8vw, 54px);
    height: clamp(20px, 4vw, 28px);
    margin-top: -5px;
    margin-left: 3px;
}

.csfb-arrow svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.csfb-arrow-line,
.csfb-arrow-head {
    fill: none;
    stroke: #ff315f;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

@media (max-width: 420px) {
    .csfb-board {
        --csfb-tile-width: clamp(31px, 11vw, 42px);
        --csfb-gap: 3px;
    }

    .csfb-caption-row {
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .csfb-tile.csfb-flipping,
    .csfb-tile.csfb-flipping .csfb-digit {
        animation: none;
    }
}