/* Four tactile rows; digits keep their familiar three-column arrangement. */
.lg-shell .lc-calculator{position:relative;padding:10px;border:2px solid #6f98ad;border-bottom:6px solid #17374c;border-radius:20px;background:linear-gradient(145deg,#24516c,#13334b);color:#fff;min-width:0;box-shadow:inset 0 2px #b7d5e137,0 5px 12px #14354d26}
.lg-shell .lc-calculator header{display:flex;align-items:center;gap:8px;min-height:44px;padding-right:96px;margin-bottom:5px}
.lg-shell .lc-calculator h3{font:600 21px/1.1 LigaGame,system-ui;color:#ffe2a1;white-space:nowrap}.lg-shell .lc-calculator header>span{display:none}
.lg-shell .lc-display{min-height:63px;padding:6px 10px;background:#f5faf5;color:#193b4d;border:2px solid #a9c7ce;border-radius:11px;text-align:right;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.lg-shell [data-lc-expression]{font-size:11px;line-height:16px;min-height:16px;color:#607e86}.lg-shell [data-lc-display]{display:block;font:600 27px/1.2 LigaGame,system-ui;min-height:33px}
.lg-shell .lc-keys{display:grid;grid-template-columns:repeat(5,minmax(44px,1fr));grid-template-rows:repeat(4,minmax(44px,auto));gap:4px;margin:8px 0}
.lg-shell .lc-keys button{min-height:44px;min-width:44px;padding:5px 3px;border:1px solid #c4dce7;border-bottom:4px solid #8faebc;border-radius:9px;background:linear-gradient(#fff,#deebef);color:#22465f;font:600 23px/1 LigaGame,system-ui}
.lg-shell .lc-keys [data-lc-key="7"]{grid-area:1/1}.lg-shell .lc-keys [data-lc-key="8"]{grid-area:1/2}.lg-shell .lc-keys [data-lc-key="9"]{grid-area:1/3}.lg-shell .lc-keys [data-lc-key="÷"]{grid-area:1/4}.lg-shell .lc-keys [data-lc-key="C"]{grid-area:1/5}
.lg-shell .lc-keys [data-lc-key="4"]{grid-area:2/1}.lg-shell .lc-keys [data-lc-key="5"]{grid-area:2/2}.lg-shell .lc-keys [data-lc-key="6"]{grid-area:2/3}.lg-shell .lc-keys [data-lc-key="×"]{grid-area:2/4}.lg-shell .lc-keys [data-lc-key="⌫"]{grid-area:2/5}
.lg-shell .lc-keys [data-lc-key="1"]{grid-area:3/1}.lg-shell .lc-keys [data-lc-key="2"]{grid-area:3/2}.lg-shell .lc-keys [data-lc-key="3"]{grid-area:3/3}.lg-shell .lc-keys [data-lc-key="−"]{grid-area:3/4}.lg-shell .lc-keys [data-lc-key="("]{grid-area:3/5}
.lg-shell .lc-keys [data-lc-key=","]{grid-area:4/1}.lg-shell .lc-keys [data-lc-key="0"]{grid-area:4/2}.lg-shell .lc-keys [data-lc-key="="]{grid-area:4/3}.lg-shell .lc-keys [data-lc-key="+"]{grid-area:4/4}.lg-shell .lc-keys [data-lc-key=")"]{grid-area:4/5}
.lg-shell .lc-keys [data-lc-key="="],.lg-shell .lc-keys [data-lc-key="C"]{background:linear-gradient(#ffe6a5,#f4c161);border-color:#ab813e;color:#674820}.lg-shell .lc-keys button:active{transform:translateY(2px);border-bottom-width:2px}
.lg-shell [data-lc-error]{font-size:12px;line-height:1.4;color:#ffe1ae;margin:7px 0}.lg-shell [data-lc-error]:empty{display:none}
.lg-shell .lc-use{width:100%;min-height:44px;padding:7px;border:1px solid #b58a43;border-bottom:4px solid #8c6429;border-radius:10px;background:#ffda83;color:#543c23;font:600 17px LigaGame,system-ui}.lg-shell .lc-use:disabled{opacity:.45}
.lg-shell .lc-history{position:absolute;top:10px;right:10px;margin:0;font-size:11px;color:#d2e4eb;z-index:5}
.lg-shell .lc-history summary{cursor:pointer;display:list-item;min-height:44px;max-width:96px;padding:13px 7px;border:1px solid #a7c4ce55;border-radius:9px;background:#14394f;color:#d9eced;white-space:nowrap;box-sizing:border-box}
.lg-shell .lc-history[open] summary{border-color:#dcb774;color:#ffe0a0}
.lg-shell .lc-history ol{position:absolute;right:0;top:48px;width:min(280px,75vw);max-height:190px;overflow:auto;margin:0;padding:12px 14px 12px 29px;border:2px solid #8eafbd;border-radius:12px;background:#173e56;box-shadow:0 8px 22px #102c4b50;list-style:decimal}
.lg-shell .lc-history li{margin:7px 0;overflow-wrap:anywhere}