.br-calc{max-width:22rem;margin:0 auto}.br-calc__display{background-color:var(--br-color-bg-light);border:1px solid var(--br-color-border);border-radius:var(--br-radius);padding:var(--br-space-md);margin-bottom:var(--br-space-md);text-align:right;font-variant-numeric:tabular-nums}.br-calc__expr{min-height:1.25rem;font-size:var(--br-text-xs);color:var(--br-color-text-sub);font-family:"Courier New",Courier,monospace;word-break:break-all}.br-calc__value{margin-top:var(--br-space-xxs);font-size:2rem;font-weight:700;color:var(--br-color-text);font-family:"Courier New",Courier,monospace;line-height:1.1;word-break:break-all;user-select:all}@media (min-width:480px){.br-calc__value{font-size:2.5rem}}.br-calc__keys{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--br-space-xs)}.br-calc__key{min-height:3.25rem;padding:var(--br-space-xs);font-size:var(--br-text-md);font-weight:600;font-family:inherit;color:var(--br-color-text);background-color:var(--br-color-bg-light);border:1px solid var(--br-color-border);border-radius:var(--br-radius);cursor:pointer;transition:background-color .12s,transform 80ms}.br-calc__key:hover{background-color:var(--br-color-bg)}.br-calc__key:active{transform:scale(.97)}.br-calc__key:focus-visible{outline:2px solid var(--br-color-accent);outline-offset:2px}.br-calc__key--fn{background-color:transparent;color:var(--br-color-text-sub);font-size:var(--br-text-sm)}.br-calc__key--op{background-color:transparent;color:var(--br-color-accent);font-size:var(--br-text-lg);border-color:var(--br-color-accent)}.br-calc__key--op.is-active{background-color:var(--br-color-accent);color:#fff}.br-calc__key--eq{background-color:var(--br-color-accent);color:#fff;border-color:var(--br-color-accent);font-size:var(--br-text-lg)}.br-calc__key--eq:hover{background-color:var(--br-color-accent-hover)}.br-calc__key--zero{grid-column:span 1}.br-calc__history-wrap{margin-top:var(--br-space-lg);padding-top:var(--br-space-md);border-top:1px solid var(--br-color-border)}.br-calc__history-summary{font-size:var(--br-text-sm);font-weight:600;color:var(--br-color-text);cursor:pointer;padding:var(--br-space-xs) 0}.br-calc__history{list-style:none;padding:0;margin:var(--br-space-sm) 0;max-height:14rem;overflow-y:auto;font-family:"Courier New",Courier,monospace;font-size:var(--br-text-xs);font-variant-numeric:tabular-nums}.br-calc__history li{padding:var(--br-space-xs);border-bottom:1px solid var(--br-color-border);cursor:pointer;color:var(--br-color-text);display:flex;justify-content:space-between;gap:var(--br-space-sm);word-break:break-all}.br-calc__history li:last-child{border-bottom:none}.br-calc__history li:hover{background-color:var(--br-color-bg)}.br-calc__history-empty{color:var(--br-color-text-sub);font-style:italic;cursor:default!important;justify-content:center!important}.br-calc__history-empty:hover{background-color:transparent!important}