.ec { width: min(760px, 100%); display: flex; flex-direction: column; align-items: center; }

.ec-read { display: flex; align-items: center; gap: 14px; height: 24px; margin: -4px 0 clamp(6px, 1.4vh, 14px); }
.ec-pips { display: inline-flex; gap: 7px; }
.ec-pips i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(225, 232, 255, .1);
    box-shadow: inset 0 0 0 1px rgba(225, 232, 255, .14);
    transition: background .3s, box-shadow .3s, transform .4s var(--px-spring);
}
.ec-pips i.is-play { background: var(--px-accent); box-shadow: 0 0 10px var(--px-accent); }
.ec-pips i.is-on { background: var(--px-lumen); box-shadow: 0 0 8px rgba(238, 241, 247, .5); transform: scale(1.12); }
.ec-phase { font-family: var(--px-serif); font-style: italic; font-size: 18px; color: var(--px-text-2); min-width: 8.5em; }

.ec-scene {
    --w: 640;
    --s: calc(var(--w) * .118px);
    --t: calc(var(--w) * .022px);
    position: relative;
    width: min(680px, 100%);
    aspect-ratio: 10 / 6.6;
    perspective: calc(var(--w) * 2.1px);
    perspective-origin: 50% 8%;
}
.ec-scene::after {
    content: "";
    position: absolute;
    left: 6%;
    right: 6%;
    bottom: 2%;
    height: 22%;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgba(0, 0, 0, .7), transparent);
    filter: blur(14px);
    z-index: -1;
}
.ec-slab {
    position: absolute;
    left: 2%;
    right: 2%;
    top: -9%;
    height: 112%;
    transform: rotateX(50deg);
    transform-style: preserve-3d;
    transform-origin: 50% 50%;
}
.ec-plate {
    position: absolute;
    inset: 0;
    border-radius: 34px;
    background:
        repeating-radial-gradient(circle at 50% 50%, transparent 0 calc(var(--w) * .07px), rgba(225, 232, 255, .028) calc(var(--w) * .07px) calc(var(--w) * .0716px)),
        radial-gradient(90% 70% at 50% 0%, color-mix(in srgb, var(--px-accent) 13%, transparent), transparent 70%),
        linear-gradient(180deg, #151D30 0%, #0D1322 100%);
    box-shadow: inset 0 0 0 1px rgba(225, 232, 255, .1), inset 0 2px 0 rgba(255, 255, 255, .07), inset 0 -30px 60px -30px rgba(0, 0, 0, .6);
}
.ec-edge {
    position: absolute;
    left: 34px;
    right: 34px;
    top: 100%;
    height: calc(var(--w) * .03px);
    transform-origin: top;
    transform: rotateX(90deg);
    background: linear-gradient(180deg, #1C2640, #070A12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12);
}

.ec-block {
    --z: 0px;
    position: absolute;
    width: var(--s);
    height: var(--s);
    padding: 0;
    border: 0;
    background: none;
    transform: translate(-50%, -50%) translateZ(var(--z));
    transform-style: preserve-3d;
    transition: transform .32s var(--px-ease);
    cursor: default;
    -webkit-tap-highlight-color: transparent;
}
.ec-f { position: absolute; display: block; }
.ec-top {
    inset: 0;
    border-radius: calc(var(--w) * .022px);
    transform: translateZ(var(--t));
    background:
        linear-gradient(155deg, rgba(255, 255, 255, .2) 0%, rgba(255, 255, 255, .04) 38%, rgba(255, 255, 255, 0) 60%),
        radial-gradient(120% 90% at 70% 110%, rgba(143, 123, 255, .1), transparent 60%),
        #1B243A;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1), inset 0 1px 0 rgba(255, 255, 255, .24);
    transition: background .25s, box-shadow .25s;
    display: grid;
    place-items: center;
}
.ec-front {
    left: calc(var(--w) * .01px);
    right: calc(var(--w) * .01px);
    top: 100%;
    height: var(--t);
    transform-origin: top;
    transform: rotateX(90deg);
    background: linear-gradient(180deg, #121A2C, #0A0F1C);
    border-radius: 0 0 6px 6px;
    transition: background .25s;
}
.ec-left, .ec-right {
    top: calc(var(--w) * .01px);
    bottom: calc(var(--w) * .01px);
    width: var(--t);
    transform-origin: left center;
    transform: rotateY(-90deg);
    background: linear-gradient(90deg, #0B1120, #141C2F);
    transition: background .25s;
}
.ec-left { left: 0; }
.ec-right { left: 100%; }
.ec-num {
    font-family: var(--px-serif);
    font-style: italic;
    font-size: calc(var(--w) * .056px);
    line-height: 1;
    color: var(--px-ink);
    opacity: 0;
    transform: scale(.7);
    transition: opacity .2s, transform .35s var(--px-spring);
}
.ec-pool {
    position: absolute;
    width: calc(var(--s) * 2.4);
    height: calc(var(--s) * 2.4);
    border-radius: 50%;
    transform: translate(-50%, -46%) translateZ(1px);
    background: radial-gradient(closest-side, color-mix(in srgb, var(--px-accent) 60%, transparent), color-mix(in srgb, var(--px-accent) 18%, transparent) 55%, transparent);
    opacity: 0;
    transition: opacity .3s var(--px-ease);
    pointer-events: none;
}
.ec-pool.is-lit { opacity: 1; }
.ec-pool.is-picked { opacity: .28; }

.ec-block.is-lit { --z: calc(var(--w) * .012px); }
.ec-block.is-lit .ec-top {
    background:
        radial-gradient(circle at 46% 38%, #FFFFFF 0%, color-mix(in srgb, var(--px-accent) 45%, #fff) 24%, var(--px-accent) 62%, color-mix(in srgb, var(--px-accent) 70%, #000) 100%);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .5), 0 0 calc(var(--w) * .06px) calc(var(--w) * .01px) color-mix(in srgb, var(--px-accent) 70%, transparent);
}
.ec-block.is-lit .ec-front { background: linear-gradient(180deg, color-mix(in srgb, var(--px-accent) 85%, #000), color-mix(in srgb, var(--px-accent) 40%, #000)); }
.ec-block.is-lit .ec-left, .ec-block.is-lit .ec-right { background: color-mix(in srgb, var(--px-accent) 55%, #000); }

.ec-scene.is-input .ec-block { cursor: pointer; }
.ec-scene.is-input .ec-block:hover .ec-top { background: linear-gradient(155deg, rgba(255, 255, 255, .26), rgba(255, 255, 255, .06) 40%, rgba(255, 255, 255, 0) 62%), #222C45; }
.ec-block.is-press { --z: calc(var(--w) * -.008px); }
.ec-block.is-picked .ec-top {
    background:
        linear-gradient(155deg, rgba(255, 255, 255, .55), rgba(255, 255, 255, .1) 45%, rgba(255, 255, 255, 0) 70%),
        var(--px-lumen);
    box-shadow: inset 0 0 0 1px #fff, 0 0 calc(var(--w) * .03px) rgba(238, 241, 247, .35);
}
.ec-block.is-picked .ec-front { background: linear-gradient(180deg, #B9C1D3, #6C768C); }
.ec-block.is-picked .ec-left, .ec-block.is-picked .ec-right { background: #8E98AD; }
.ec-block.is-picked .ec-num { opacity: 1; transform: none; }

.ec-tools { display: flex; justify-content: center; min-height: 38px; margin-top: clamp(4px, 1.2vh, 12px); }

.ec-scene.is-demo { position: absolute; inset: 4% 6% 0; width: auto; aspect-ratio: auto; --w: 400; }
.ec-scene.is-demo .ec-plate { border-radius: 22px; }

@media (max-width: 720px) {
    .ec-scene { aspect-ratio: 10 / 7.4; }
    .ec-phase { font-size: 17px; }
}