:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:#192b40;background:#f4f7fb;line-height:1.5;font-size:15px;--blue:#155bd7;--border:#dce4ee}*{box-sizing:border-box}body{margin:0}a{color:var(--blue);text-decoration:none}button,input,select,textarea{font:inherit}button{padding:9px 13px;border:1px solid var(--border);border-radius:9px;background:#fff;color:#283c55;cursor:pointer}button:hover{background:#eff5ff;border-color:#aac3ea}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--blue);color:white;border-color:var(--blue)}button.danger{color:#b42318}input,select,textarea{border:1px solid #cbd6e5;border-radius:8px;padding:9px 10px;background:white;color:inherit;max-width:100%;min-width:0}input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid #87b3ff;outline-offset:2px}input[aria-invalid=true],textarea[aria-invalid=true]{border:2px solid #c73a35;background:#fff1ef}.shell{width:min(1160px,calc(100% - 32px));margin:auto}main.shell{padding:30px 0 42px}.hero{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.hero h1{font-size:clamp(25px,4vw,34px);margin:6px 0 8px;letter-spacing:-.6px}.hero p{color:#60738c;margin:0}.eyebrow{font-size:11px;letter-spacing:1.2px;font-weight:700;color:#36659c}.panel{background:white;border:1px solid var(--border);padding:20px;border-radius:14px;margin:18px 0}.panel h2,.section-title h2{font-size:20px;margin:0 0 12px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:20px 0 10px}.panel .section-title{margin-top:0}.section-title h2{margin:0}.muted{font-size:13px;color:#65778e;margin:10px 0}.toolbar{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.toolbar label{display:flex;align-items:center;gap:8px;font-size:13px}.field-controls{display:flex;align-items:end;gap:14px;flex-wrap:wrap}label{display:flex;flex-direction:column;gap:5px;font-size:13px;font-weight:600;min-width:0}#primeInput{width:240px}.badge{border-radius:30px;background:#eaf2ff;color:#235aa4;padding:6px 12px;font-size:12px;overflow-wrap:anywhere;max-width:100%}.field-controls .badge{align-self:center}#status{position:sticky;top:12px;z-index:4;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border:1px solid #9fc2e7;background:#edf5ff;color:#214b7c;border-radius:12px;margin:16px 0;white-space:pre-wrap;overflow-wrap:anywhere}#status.error{background:#fff0ee;color:#a12b26;border-color:#e0a09b}#status button{white-space:nowrap}.matrix-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.matrix-card{min-width:0;background:white;border:1px solid var(--border);border-radius:14px;padding:18px}.matrix-head{display:flex;justify-content:space-between;gap:10px;align-items:center}.matrix-head h3{font-size:22px;margin:0;color:#1c56a6}.matrix-dims{display:flex;gap:7px;align-items:center;margin:12px 0;flex-wrap:wrap}.matrix-dims label{font-size:12px;display:flex;flex-direction:row;align-items:center}.matrix-dims input{width:62px;padding:6px}.matrix-scroll,.result-area{overflow:auto;max-height:520px;padding:7px 0}.matrix-table{border-collapse:separate;border-spacing:5px;margin:auto}.matrix-table input{width:64px;min-width:64px;padding:8px 5px;text-align:center;font-size:16px;font-variant-numeric:tabular-nums}.matrix-actions{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 5px}.matrix-actions button{font-size:12px;padding:6px 9px}.operation-controls{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr) minmax(0,1fr);gap:14px;margin-bottom:14px}.sub-controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:14px}.expression-row{display:flex;gap:9px;align-items:center;margin:7px 0 14px}#expression{flex:1;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:18px;min-width:0}.examples{display:flex;align-items:center;gap:7px;flex-wrap:wrap;color:#63738b;font-size:12px}.examples button{padding:5px 9px;font-size:12px}.math-expression{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere;font-size:17px;color:#24558e}.result-table{border-collapse:collapse;margin:5px auto 14px;font-variant-numeric:tabular-nums}.result-table td{border:1px solid var(--border);padding:10px 15px;text-align:center;white-space:nowrap;max-width:240px;overflow-wrap:anywhere}.scalar-result{font-size:26px;font-weight:700;overflow-wrap:anywhere;background:#f1f6fd;border-radius:12px;padding:20px}.history-list{display:flex;flex-direction:column;gap:7px}.history-list button{display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:left;overflow-wrap:anywhere}.history-list small{color:#67778c;font-size:11px;white-space:nowrap}dialog{width:min(780px,calc(100vw - 24px));border:1px solid var(--border);border-radius:16px;padding:24px;max-height:88vh;overflow:auto}dialog::backdrop{background:#15223980}dialog h2{margin:0 0 14px;font-size:23px}dialog textarea{width:100%;font-family:monospace;font-size:16px}dialog .toolbar{justify-content:flex-end;margin-top:16px}.dialog-error{color:#b42318;margin-top:12px;white-space:pre-wrap}.help-table{border-collapse:collapse;width:100%;font-size:13px}.help-table td,.help-table th{border:1px solid var(--border);padding:9px;text-align:left}.help-table td:first-child{font-family:monospace}.help-table th{background:#eff5fc}footer{text-align:center;font-size:12px;color:#74849b;margin:20px 0 32px}[hidden]{display:none!important}
@media(max-width:760px){.matrix-list{grid-template-columns:1fr}.operation-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{align-items:flex-start}.hero>button{font-size:12px}.expression-row{flex-wrap:wrap}#expression{flex-basis:100%}.result-table td{padding:8px 10px}}
@media(max-width:480px){.shell{width:calc(100% - 22px)}.hero{flex-direction:column}.panel,.matrix-card{padding:15px}.operation-controls{grid-template-columns:1fr}.sub-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.field-controls{gap:10px}#primeInput{width:210px}.matrix-table{border-spacing:3px}.matrix-table input{width:56px;min-width:56px}.section-title{flex-wrap:wrap}.history-list button{flex-wrap:wrap}.help-table{font-size:12px}}

.operation-controls input,.operation-controls select,.sub-controls input{width:100%}.history-list span,#status>span{min-width:0;max-width:100%;overflow-wrap:anywhere}@media(max-width:480px){.history-list small{white-space:normal;overflow-wrap:anywhere}}