.calc{--accent:#5b8cd6}.calc-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,1fr);gap:20px;align-items:start}@media (max-width:800px){.calc-layout{grid-template-columns:1fr}}.calc-main{display:flex;flex-direction:column;gap:12px}.calc-display{border-radius:14px;border:1px solid rgba(91,140,214,.3);background:rgba(8,11,22,.6);padding:12px 14px}.calc-expr{width:100%;border:0;background:transparent;color:var(--ink);outline:none;font:600 20px/1.3 JetBrains Mono,monospace}.calc-expr::placeholder{color:var(--faint)}.calc-result{text-align:right;font:800 30px/1.2 JetBrains Mono,monospace;color:var(--accent);margin-top:6px;min-height:36px;word-break:break-all;font-variant-numeric:tabular-nums}.calc-result.err{color:#ff7a7a;font-size:16px;font-weight:600}.calc-bar{display:flex;align-items:center;gap:8px}.calc-keys{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.calc-key{padding:13px 0;border-radius:11px;cursor:pointer;color:var(--ink);border:1px solid rgba(140,160,235,.22);background:rgba(255,255,255,.03);font:700 15px/1 Inter,Segoe UI,system-ui,sans-serif;transition:background .13s,border-color .13s,transform .08s}.calc-key:hover{background:rgba(91,140,214,.16);border-color:#5b8cd680}.calc-key:active{transform:translateY(1px)}.calc-key.fn{font:700 13px/1 JetBrains Mono,monospace;color:var(--dim)}.calc-key.op{color:var(--accent)}.calc-key.eq{background:var(--accent);color:#06101f;border-color:transparent;grid-column:span 2}.calc-key.wide{grid-column:span 2}.calc-key.danger{color:#ff8f8f}.calc-side{display:flex;flex-direction:column;gap:12px}.calc-graph-wrap{position:relative;aspect-ratio:1/1;border-radius:14px;overflow:hidden;border:1px solid rgba(91,140,214,.26);background:rgba(8,11,22,.5)}#graph{position:absolute;inset:0;width:100%;height:100%;cursor:crosshair}.calc-graph-hint{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:20px;color:var(--faint);font:600 13px/1.5 Inter,Segoe UI,system-ui,sans-serif}.calc-graph-wrap.on .calc-graph-hint{display:none}.calc-history-head{font:700 11.5px/1 Inter,Segoe UI,system-ui,sans-serif;color:var(--dim);text-transform:uppercase;letter-spacing:.04em}.calc-history{display:flex;flex-direction:column;gap:5px;max-height:180px;overflow:auto}.calc-hrow{padding:7px 11px;border-radius:9px;cursor:pointer;background:rgba(255,255,255,.03);border:1px solid rgba(140,160,235,.14);transition:border-color .13s}.calc-hrow:hover{border-color:var(--accent)}.calc-hrow .he{font:600 12.5px/1.3 JetBrains Mono,monospace;color:var(--dim);word-break:break-all}.calc-hrow .hr{font:700 14px/1.3 JetBrains Mono,monospace;color:var(--ink)}.calc-empty{font:500 12px/1.4 Inter,Segoe UI,system-ui,sans-serif;color:var(--faint)}