.qc-toggle{position:fixed;right:16px;bottom:16px;z-index:70;background:var(--brown);color:white;border:1px solid var(--brown);border-radius:999px;min-height:48px;padding:10px 18px;font:inherit;font-weight:700;box-shadow:var(--shadow)}.qc-toggle span{margin-right:6px}.qc-panel{position:fixed;z-index:71;left:12px;top:12px;width:280px;max-width:90vw;max-height:calc(100dvh - 24px);overflow:auto;padding:12px;background:#fff;color:var(--ink);border:1px solid #c6a38c;border-radius:20px;box-shadow:var(--shadow)}.qc-panel[hidden],.qc-toggle[hidden]{display:none!important}.qc-panel header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:8px}.qc-panel button{font:inherit;cursor:pointer;color:var(--ink);background:var(--soft);border:1px solid var(--line);border-radius:10px;min-height:44px}.qc-panel .qc-handle{flex:1;text-align:left;font-weight:800;background:white;border:0;touch-action:none;cursor:move}.qc-handle span{float:right;margin-right:12px}.qc-close{min-width:44px;font-size:1.4rem!important}.qc-expression{min-height:1.5em;margin:12px 0 4px;font-size:.8rem;overflow-wrap:anywhere;color:var(--muted)}.qc-result{display:block;font-size:1.65rem;font-weight:800;text-align:right;overflow-wrap:anywhere;margin:4px 0 12px;line-height:1.25}.qc-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.qc-keys button{font-weight:700}.qc-keys [data-key="="]{background:var(--brown);color:white}.qc-actions{display:flex;gap:6px;margin:10px 0}.qc-actions button{flex:1;font-size:.7rem}.qc-panel details{font-size:.72rem}.qc-panel summary{padding:8px 0;cursor:pointer}.qc-history{padding-left:20px;overflow-wrap:anywhere}.qc-history li{margin:8px 0}.qc-hint,.qc-status{font-size:.68rem;line-height:1.5;margin:8px 0 0}.qc-panel button:focus-visible,.qc-panel summary:focus-visible,.qc-toggle:focus-visible{outline:3px solid var(--tool-accent);outline-offset:2px}@media print{#quick-calculator{display:none!important}}@media(prefers-reduced-motion:reduce){.qc-panel,.qc-toggle{transition:none}}