.sc-wrap{max-width:720px;margin:0 auto;padding:20px 16px 48px}.sc-wrap h1{font-size:1.8rem;font-weight:800;margin-bottom:2px}.sc-sub{font-size:.8rem;color:var(--text-muted);font-family:var(--font-mono);margin-bottom:20px}.sc-layout{display:grid;grid-template-columns:1fr 260px;gap:16px}@media (max-width:660px){.sc-layout{grid-template-columns:1fr}}.sc-body{background:var(--surface);border:1.5px solid var(--border2);border-radius:18px;overflow:hidden}.sc-mode-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid var(--border2);background:var(--surface2)}.mode-pill{font-size:11px;font-weight:700;font-family:var(--font-mono);padding:3px 10px;border-radius:99px;border:1.5px solid var(--border2);background:transparent;color:var(--text-muted);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.mode-pill.active{background:#1e3a8a;color:#fff;border-color:#1e3a8a}[data-theme=dark] .mode-pill.active{background:#3b82f6;border-color:#3b82f6}.mode-sep{flex:1}.inv-pill{font-size:11px;font-weight:700;font-family:var(--font-mono);padding:3px 10px;border-radius:99px;border:1.5px solid var(--border2);background:transparent;color:var(--text-muted);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.inv-pill.active{background:#7c3aed;color:#fff;border-color:#7c3aed}.sc-display{padding:14px 18px 10px;min-height:88px;background:var(--surface);border-bottom:1px solid var(--border2)}.sc-expr{font-family:var(--font-mono);font-size:13px;color:var(--text-muted);min-height:18px;word-break:break-all;margin-bottom:4px}.sc-result{font-family:var(--font-mono);font-size:2rem;font-weight:700;color:var(--text-primary, #111);text-align:right;word-break:break-all;line-height:1.1}[data-theme=dark] .sc-result{color:#f3f4f6}.sc-result.is-error{font-size:1rem;color:#ef4444}.sc-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;padding:12px}.sc-btn{font-family:var(--font-mono);font-weight:700;font-size:15px;padding:0;height:52px;border-radius:10px;border:1.5px solid var(--border2);background:var(--surface2);color:var(--text-primary, #111);cursor:pointer;transition:background .1s,transform .08s;display:flex;align-items:center;justify-content:center}[data-theme=dark] .sc-btn{color:#f3f4f6}.sc-btn:active{transform:scale(.93)}.sc-btn:hover{background:var(--border2)}.sc-btn.num{background:var(--surface)}.sc-btn.op{background:#eff6ff;color:#1e3a8a;border-color:#bfdbfe}[data-theme=dark] .sc-btn.op{background:#1e2c4a;color:#93c5fd;border-color:#1e3a8a}.sc-btn.fn{background:#f5f3ff;color:#5b21b6;border-color:#ddd6fe;font-size:15px}[data-theme=dark] .sc-btn.fn{background:#1e1a2e;color:#c4b5fd;border-color:#4c1d95}.sc-btn.eq{background:#1e3a8a;color:#fff;border-color:#1e3a8a;font-size:18px}[data-theme=dark] .sc-btn.eq{background:#2563eb;border-color:#2563eb}.sc-btn.clear{background:#fef2f2;color:#dc2626;border-color:#fecaca;font-size:20px}[data-theme=dark] .sc-btn.clear{background:#2d1515;color:#f87171;border-color:#7f1d1d}.sc-btn.mem{background:#f0fdf4;color:#166534;border-color:#bbf7d0;font-size:15px}[data-theme=dark] .sc-btn.mem{background:#0d1f14;color:#4ade80;border-color:#14532d}.sc-btn.const{background:#fff7ed;color:#9a3412;border-color:#fed7aa}[data-theme=dark] .sc-btn.const{background:#2d1a0a;color:#fb923c;border-color:#7c2d12}.sc-mem-strip{display:flex;align-items:center;gap:8px;padding:6px 14px;border-top:1px solid var(--border2);font-size:11px;color:var(--text-muted);font-family:var(--font-mono)}.mem-val{font-weight:700;color:var(--text-primary, #111)}[data-theme=dark] .mem-val{color:#f3f4f6}.sc-history{background:var(--surface);border:1.5px solid var(--border2);border-radius:18px;overflow:hidden;display:flex;flex-direction:column}.hist-head{padding:12px 14px;border-bottom:1px solid var(--border2);font-size:11px;font-weight:800;font-family:var(--font-mono);color:var(--text-muted);letter-spacing:.5px;text-transform:uppercase;display:flex;align-items:center;justify-content:space-between}.hist-clear-btn{font-size:10px;font-weight:700;padding:2px 8px;border-radius:6px;border:1.5px solid var(--border2);background:transparent;color:var(--text-muted);cursor:pointer}.hist-list{flex:1;overflow-y:auto;max-height:460px}.hist-item{padding:10px 14px;border-bottom:1px solid var(--border2);cursor:pointer;transition:background .12s}.hist-item:hover{background:var(--surface2)}.hist-expr{font-size:11px;color:var(--text-muted);font-family:var(--font-mono);word-break:break-all}.hist-val{font-size:15px;font-weight:700;font-family:var(--font-mono);color:var(--text-primary, #111);margin-top:2px}[data-theme=dark] .hist-val{color:#f3f4f6}.hist-empty{padding:24px;text-align:center;font-size:12px;color:var(--text-muted);font-family:var(--font-mono)}.sc-kbd-hint{margin-top:10px;font-size:11px;color:var(--text-muted);font-family:var(--font-mono);padding:0 2px}