:root{color-scheme:dark;--bg:#081524;--panel:#11243a;--panel2:#152d46;--ink:#f1f8ff;--sub:#a7bdcd;--line:#36536d;--mint:#5deacb;--blue:#a1beff;--control:#0b1b32;--shadow:0 20px 52px #01091455;--graph:#071a2e}html[data-theme="light"]{color-scheme:light;--bg:#f1f7fc;--panel:#fff;--panel2:#eaf3fb;--ink:#19324c;--sub:#51687e;--line:#c5d7e5;--mint:#067d6b;--blue:#446aa8;--control:#f8fbff;--shadow:0 15px 40px #2341621f;--graph:#f9fcff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid var(--mint);outline-offset:3px}a{color:inherit}.top{height:66px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px clamp(16px,3vw,40px);border-bottom:1px solid 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var(--line);border-radius:8px;color:var(--ink);padding:3px 7px;font-size:1rem}.curve-form{display:flex;gap:8px;align-items:center}.curve-form label{font-weight:800;white-space:nowrap}.curve-expression{flex:1;min-width:0}.curve-expression input{font-family:ui-monospace,monospace;font-size:.86rem;padding:9px}.curve-error{color:#ffb3a6;font-size:.76rem;margin-top:4px;min-height:0}.curve-param-head{display:flex;align-items:center;justify-content:space-between;font-size:.73rem;color:var(--sub);padding:9px 0 2px}.slider-field{display:grid;grid-template-columns:1fr auto;column-gap:8px;margin:10px 0 0}.slider-field>label{font-size:.76rem;color:var(--sub)}.slider-field output{font-weight:800;font-variant-numeric:tabular-nums;color:var(--ink);font-size:.82rem}.slider-field input{width:100%;grid-column:1/-1;accent-color:var(--mint);margin-top:2px;cursor:ew-resize}.curve-meta{display:flex;gap:7px;margin-top:10px}.curve-meta button{padding:5px 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svg{width:100%;height:auto;display:block;touch-action:none;user-select:none;cursor:crosshair}.plot-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:34px;padding:9px 8px 0;font-size:.81rem}.scale{color:var(--sub);font-size:.7rem;white-space:nowrap}.legend{display:flex;flex-wrap:wrap;gap:7px;padding:6px 8px}.legend span{font-size:.74rem;border:1px solid var(--line);border-radius:20px;padding:4px 9px;display:flex;align-items:center;gap:6px}.legend i{display:inline-block;width:15px;height:3px;border-radius:4px}.table-card,.save-card{padding:17px}.table-card>div:first-child p,.save-card>div:first-child p{font-size:.84rem}.table-scroll{overflow-x:auto;margin-top:12px}table{border-collapse:collapse;width:100%;text-align:right;white-space:nowrap;font-size:.82rem}th,td{padding:7px 9px;border-bottom:1px solid 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@media print{html,body{background:#fff!important;color:#111!important}.top,.hero,.controls,.table-card,.save-card,.plot-actions,.plot-head p,.plot-footer,.legend,footer{display:none!important}.lab-layout{display:block}.plot-card{background:white;box-shadow:none;border:0;padding:0}.plot-card h2{color:#111;font-size:16pt}.graph-wrap{border:1px solid #333}.graph-wrap svg{max-width:100%}main{padding:0}.visual-area{display:block}.graph-wrap{page-break-inside:avoid}.plot-head{display:block}}
/* Equacions explícites en x: cada membre es representa en els eixos del laboratori. */
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@media(max-width:720px){.equation-card{padding:12px}.equation-input{flex-wrap:wrap}.equation-input button{width:100%}.equation-compare select{flex:1 1 30%}.equation-compare>span:first-child{width:100%}}
@media print{.equation-card{break-inside:avoid;box-shadow:none}.equation-form,.equation-tip,.equation-compare,.equation-header p{display:none!important}.equation-result{background:#fff;border:1px solid #666;color:#111}.equation-result strong{color:#111}.equation-card>small{display:none}.equation-card{border:0;padding:0}.plot-card,.equation-card{display:block!important}}