.sci-wrap{display:grid;gap:14px}
@media (min-width:860px){.sci-wrap{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr)}}
.sci-card{padding:16px}
.sci-display{background:var(--surface-2);border-radius:var(--radius);padding:10px 14px 12px;margin-bottom:12px;min-width:0}
.sci-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.sci-mode button{padding:5px 12px;font-size:13px;min-height:34px}
.sci-input{display:block;width:100%;border:0;background:transparent;text-align:right;font-family:var(--mono);font-size:20px;color:var(--text);padding:10px 0 2px;min-height:44px;outline:0}
.sci-input::placeholder{color:var(--faint)}
.sci-result{display:block;text-align:right;font-size:38px;font-weight:700;letter-spacing:-.02em;line-height:1.2;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;min-height:46px}
.sci-result.preview{color:var(--muted)}
.sci-msg{text-align:right;font-size:14px;color:var(--bad);min-height:20px}
.sci-keys{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.sci-keys+.sci-keys{margin-top:8px}
.sci-keys button{height:50px;border:0;border-radius:12px;background:var(--surface-2);color:var(--text);font-size:22px;font-weight:600;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:filter .1s,transform .05s}
.sci-keys button:hover{filter:brightness(.96)}
.sci-keys button:active{transform:scale(.96);filter:brightness(.9)}
.sci-fn button{height:42px;font-size:16px;background:transparent;border:1px solid var(--border);color:var(--muted)}
.sci-num button{height:clamp(52px,13vw,60px)}
.sci-keys .op{background:var(--brand-soft);color:var(--brand);font-size:26px}
.sci-keys .fn{color:var(--muted);font-size:18px}
.sci-keys .eq{background:var(--brand);color:var(--brand-text);font-size:26px}
.sci-hist{display:flex;flex-direction:column;min-width:0}
.sci-hist-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.sci-list{list-style:none;margin:10px 0 0;padding:0;max-height:440px;overflow:auto}
.sci-list li+li{border-top:1px solid var(--border)}
.sci-list button{display:block;width:100%;text-align:right;background:none;border:0;padding:9px 6px;cursor:pointer;border-radius:8px}
.sci-list button:hover{background:var(--surface-2)}
.sci-list small{display:block;color:var(--muted);font-family:var(--mono);font-size:13px;overflow-wrap:anywhere}
.sci-list b{font-size:18px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.sci-tip{margin-top:auto;padding-top:12px}
.sci-tip code{font-family:var(--mono);font-size:12px;background:var(--surface-2);border-radius:4px;padding:0 4px}