/* Calculators hub (pages/calculators.html): directory, calculator detail view, inputs, results and charts.
   Chart colours: categorical palette validated for colour-vision deficiency against both theme surfaces. */
.calc-page{max-width:var(--max);margin:auto;padding:40px 24px 20px;
 --viz-1:#3987e5;--viz-2:#d95926;--viz-3:#199e70;--viz-4:#c98500;--viz-5:#d55181;--viz-6:#008300;--viz-7:#9085e9;--viz-8:#e66767;
 --viz-surface:#111b2d;--viz-grid:#1f2f45;--viz-axis:#3a4f69;--viz-text:#e7edf5;--viz-muted:#8fa2b8;
 --c-panel:#111b2d;--c-panel2:#0f1828;--c-line:#26384e;--c-field:#0c1625;--c-field-line:#304158;--c-text:#e7edf5;--c-muted:#9aadc2;--c-accent:#48e0b0;--c-accent-bg:#193c3b;--c-accent-line:#2e796b;--c-pos:#48e0b0;--c-neg:#ff8e98;--c-warn:#ffbf78}
html[data-theme="light"] .calc-page{
 --viz-1:#2a78d6;--viz-2:#eb6834;--viz-3:#1baf7a;--viz-4:#eda100;--viz-5:#e87ba4;--viz-6:#008300;--viz-7:#6250d6;--viz-8:#e34948;
 --viz-surface:#ffffff;--viz-grid:#e6ebf2;--viz-axis:#c5d0de;--viz-text:#13233a;--viz-muted:#4a5b70;
 --c-panel:#ffffff;--c-panel2:#f8fafc;--c-line:#d5dde8;--c-field:#ffffff;--c-field-line:#c5d0de;--c-text:#13233a;--c-muted:#4a5b70;--c-accent:#0b7d5e;--c-accent-bg:#d9f5ec;--c-accent-line:#8fd9bd;--c-pos:#0b7d5e;--c-neg:#b3262f;--c-warn:#a8621c}
.calc-h1{font-family:Manrope,sans-serif;font-size:clamp(28px,4vw,42px);letter-spacing:-1.2px;line-height:1.15;margin:0 0 10px;color:var(--c-text)}
.calc-intro{font-size:15px;color:var(--c-muted);line-height:1.7;margin:0;max-width:760px}
.calc-disclaimer{margin-top:40px}

/* ---------- Directory ---------- */
.calc-dir-head{margin-bottom:8px}
.calc-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:22px 0 14px}
.calc-search{flex:1 1 320px;display:flex;align-items:center;gap:10px;background:var(--c-field);border:1px solid var(--c-field-line);border-radius:12px;padding:0 14px;color:var(--c-muted)}
.calc-search:focus-within{border-color:var(--c-accent)}
.calc-search input{flex:1;background:transparent;border:0;outline:0;color:var(--c-text);padding:13px 0;font-size:15px;min-width:0}
.calc-cur{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--c-muted)}
.calc-cur select,.calc-jump select{background:var(--c-field);border:1px solid var(--c-field-line);border-radius:9px;color:var(--c-text);padding:9px 10px;font-size:13px}
.calc-fixed-cur{font-size:12px;color:var(--c-muted);border:1px dashed var(--c-field-line);border-radius:9px;padding:7px 10px}
.calc-chips{display:flex;gap:8px;flex-wrap:wrap}
.calc-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--c-line);background:var(--c-panel);color:var(--c-muted);border-radius:999px;padding:7px 13px;font-size:12px;cursor:pointer;line-height:1.3}
.calc-chip small{color:inherit;opacity:.7}
.calc-chip:hover{border-color:var(--c-accent-line);color:var(--c-text)}
.calc-chip.active{background:var(--c-accent-bg);border-color:var(--c-accent-line);color:var(--c-accent);font-weight:700}
.calc-section{margin-top:34px}
.calc-section h2{font-family:Manrope,sans-serif;font-size:19px;margin:0 0 14px;color:var(--c-text)}
.calc-section h2 span{color:var(--c-accent)}
.calc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.calc-card{display:flex;gap:13px;align-items:flex-start;border:1px solid var(--c-line);background:var(--c-panel);border-radius:14px;padding:16px;transition:border-color .2s,transform .2s}
.calc-card:hover{border-color:var(--c-accent-line);transform:translateY(-2px)}
.calc-card:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.calc-card-icon{flex:none;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:var(--c-accent-bg);color:var(--c-accent);font-size:17px;font-weight:700}
.calc-card-text strong{display:block;font-size:14px;color:var(--c-text);margin-bottom:4px;font-family:Manrope,sans-serif}
.calc-card-text small{display:block;font-size:12px;color:var(--c-muted);line-height:1.55}
.calc-empty{color:var(--c-muted);padding:30px 0}

/* ---------- Detail ---------- */
.calc-crumbs{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--c-muted);margin-bottom:14px}
.calc-crumbs a{color:var(--c-accent);font-weight:600}
.calc-head{display:flex;gap:16px;align-items:flex-start}
.calc-head-icon{flex:none;width:54px;height:54px;border-radius:14px;display:grid;place-items:center;background:var(--c-accent-bg);color:var(--c-accent);font-size:23px;font-weight:700}
.calc-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:20px 0 18px}
.calc-jump{flex:0 1 320px}
.calc-jump select{width:100%}
.calc-body{display:grid;grid-template-columns:minmax(300px,400px) minmax(0,1fr);gap:18px;align-items:start}
.calc-body-wide{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}
.calc-inputs,.calc-results{background:var(--c-panel);border:1px solid var(--c-line);border-radius:16px;padding:20px;min-width:0}
.calc-inputs{position:sticky;top:130px;max-height:calc(100vh - 148px);overflow:auto} /* clears the header and the index ribbon */
.calc-panel-title{font-family:Manrope,sans-serif;font-size:13px;letter-spacing:1.2px;text-transform:uppercase;color:var(--c-muted);margin:0 0 14px}

/* Inputs */
.ci-field{border:0;margin:0 0 18px;padding:0;min-width:0}
.ci-field[hidden]{display:none}
.ci-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.ci-label{font-size:13px;color:var(--c-text);font-weight:600;padding:0;line-height:1.4}
fieldset>.ci-label{margin-bottom:8px;display:flex;justify-content:space-between;width:100%;gap:8px}
.ci-num{display:inline-flex;align-items:center;background:var(--c-field);border:1px solid var(--c-field-line);border-radius:9px;padding:0 9px;flex:none}
.ci-num:focus-within{border-color:var(--c-accent)}
.ci-num input{width:120px;background:transparent;border:0;outline:0;color:var(--c-text);padding:8px 2px;text-align:right;font-size:14px;font-weight:600;-moz-appearance:textfield}
.ci-num input::-webkit-outer-spin-button,.ci-num input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.ci-unit{color:var(--c-muted);font-size:13px}
.ci-range{width:100%;margin:10px 0 0;accent-color:var(--c-accent);height:20px;cursor:pointer}
.ci-hint{font-size:11px;color:var(--c-muted);margin:2px 0 0;min-height:0}
.ci-hint:empty{display:none}
.ci-help{font-size:11px;color:var(--c-muted);margin:5px 0 0;line-height:1.5}
.ci-text,.ci-field>select{width:100%;margin-top:6px;background:var(--c-field);border:1px solid var(--c-field-line);border-radius:9px;color:var(--c-text);padding:9px 10px;font-size:14px}
.ci-seg{display:flex;flex-wrap:wrap;gap:6px}
.ci-seg label{position:relative;flex:1 1 auto}
.ci-seg input{position:absolute;opacity:0;pointer-events:none}
.ci-seg span{display:block;text-align:center;border:1px solid var(--c-field-line);border-radius:9px;padding:8px 10px;font-size:12px;color:var(--c-muted);cursor:pointer;white-space:nowrap}
.ci-seg input:checked+span{background:var(--c-accent-bg);border-color:var(--c-accent-line);color:var(--c-accent);font-weight:700}
.ci-seg input:focus-visible+span{outline:2px solid var(--c-accent);outline-offset:2px}
.ci-rows-total{font-weight:600;color:var(--c-accent);font-size:12px}
.ci-rows-grid{display:grid;gap:6px;align-items:center}
.ci-rows-h{font-size:10px;letter-spacing:.6px;text-transform:uppercase;color:var(--c-muted)}
.ci-rows-grid>input,.ci-rows-grid>select{width:100%;min-width:0;background:var(--c-field);border:1px solid var(--c-field-line);border-radius:8px;color:var(--c-text);padding:7px 8px;font-size:13px}
.ci-num-row{width:100%;min-width:0;padding:0 7px}
.ci-num-row input{width:100%;min-width:0;font-size:13px;padding:7px 2px}
.ci-del{background:none;border:0;color:var(--c-muted);cursor:pointer;font-size:12px;height:30px;border-radius:7px}
.ci-del:hover{color:var(--c-neg);background:var(--c-panel2)}
.ci-add{margin-top:8px;background:none;border:1px dashed var(--c-field-line);color:var(--c-accent);border-radius:9px;padding:7px 12px;font-size:12px;font-weight:600;cursor:pointer;width:100%}
.ci-add:hover{border-color:var(--c-accent)}

/* Results */
.cr-hero{border-radius:14px;padding:18px 20px;background:linear-gradient(135deg,var(--c-accent-bg),transparent 85%);border:1px solid var(--c-accent-line);margin-bottom:14px}
.cr-hero small{display:block;font-size:12px;color:var(--c-muted);margin-bottom:4px}
.cr-hero strong{display:block;font-family:Manrope,sans-serif;font-size:clamp(26px,3.6vw,38px);line-height:1.15;color:var(--c-text);letter-spacing:-.5px;overflow-wrap:anywhere}
.cr-hero p{margin:6px 0 0;font-size:13px;color:var(--c-muted)}
.cr-hero.cr-neg{background:linear-gradient(135deg,rgba(239,95,107,.16),transparent 85%);border-color:rgba(239,95,107,.45)}
.cr-hero.cr-warn{background:linear-gradient(135deg,rgba(255,191,120,.14),transparent 85%);border-color:rgba(255,191,120,.45)}
.cr-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin-bottom:14px}
.cr-stat{border:1px solid var(--c-line);border-radius:12px;padding:12px 14px;background:var(--c-panel2);min-width:0}
.cr-stat small{display:block;font-size:11px;color:var(--c-muted);margin-bottom:3px}
.cr-stat strong{display:block;font-family:Manrope,sans-serif;font-size:17px;color:var(--c-text);overflow-wrap:anywhere}
.cr-stat span{display:block;font-size:11px;color:var(--c-muted);margin-top:3px;line-height:1.45}
.cr-pos strong{color:var(--c-pos)}
.cr-neg strong{color:var(--c-neg)}
.cr-warn strong{color:var(--c-warn)}
.cr-hero.cr-pos strong,.cr-hero.cr-neg strong,.cr-hero.cr-warn strong{color:var(--c-text)}
.cr-callout{border-radius:10px;padding:11px 14px;font-size:13px;line-height:1.6;margin:0 0 14px;border:1px solid var(--c-line);color:var(--c-text);background:var(--c-panel2)}
.cr-callout.cr-neg{border-color:rgba(239,95,107,.5)}
.cr-callout.cr-warn{border-color:rgba(255,191,120,.5)}
.cr-callout.cr-info{border-color:var(--c-accent-line)}
.cr-error{border:1px solid rgba(239,95,107,.5);border-radius:12px;padding:16px;color:var(--c-text);background:var(--c-panel2)}
.cr-chart{margin:6px 0 16px}
.cr-table,.cr-how{border-top:1px solid var(--c-line);padding:10px 0}
.cr-table>summary,.cr-how>summary{cursor:pointer;font-weight:700;font-size:14px;color:var(--c-text);padding:4px 0}
.cr-table>summary::marker,.cr-how>summary::marker{color:var(--c-accent)}
.cr-table-scroll,.viz-table-scroll{max-height:360px;overflow:auto;margin:8px 0;border:1px solid var(--c-line);border-radius:10px}
.cr-table table,.viz-table table{width:100%;border-collapse:collapse;font-size:12px}
.cr-table th,.viz-table th{position:sticky;top:0;background:var(--c-panel2);text-align:right;font-weight:600;color:var(--c-muted);padding:8px 10px;border-bottom:1px solid var(--c-line);white-space:nowrap}
.cr-table td,.viz-table td{text-align:right;padding:7px 10px;border-bottom:1px solid var(--c-line);color:var(--c-text);white-space:nowrap}
.cr-table th:first-child,.cr-table td:first-child,.viz-table th:first-child,.viz-table td:first-child{text-align:left;white-space:normal}
.cr-table tr:last-child td,.viz-table tr:last-child td{border-bottom:0}
.cr-csv{margin-top:4px}
.cr-notes{border-top:1px solid var(--c-line);padding-top:12px;margin-top:4px}
.cr-notes h3{font-size:13px;margin:0 0 6px;color:var(--c-text)}
.cr-notes ul,.cr-how ul{margin:0;padding-left:18px;color:var(--c-muted);font-size:13px;line-height:1.7}
.cr-how ul{margin-top:6px}
.calc-related{margin-top:30px}
.calc-related h2{font-family:Manrope,sans-serif;font-size:17px;margin:0 0 12px;color:var(--c-text)}
.calc-related-list{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- Charts ---------- */
.viz{margin:0}
.viz-title{font-size:13px;font-weight:700;color:var(--viz-text);margin-bottom:6px}
.viz-plot{position:relative}
.viz-plot svg{display:block;width:100%;height:auto;overflow:visible}
.viz-grid{stroke:var(--viz-grid);stroke-width:1}
.viz-zero{stroke:var(--viz-axis)}
.viz-axis{fill:var(--viz-muted);font-size:11px;font-family:'DM Sans',sans-serif}
.viz-line{fill:none;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.viz-dashed{stroke-dasharray:6 5}
.viz-area{opacity:.12}
.viz-dot{stroke:var(--viz-surface);stroke-width:2}
.viz-cross{stroke:var(--viz-muted);stroke-width:1}
.viz-hit{fill:transparent;cursor:crosshair}
.viz-hit-bar{cursor:pointer}
.viz-hit-bar.on{fill:var(--viz-grid);opacity:.5}
.viz-bar{pointer-events:none}
.viz-seg{stroke:var(--viz-surface);stroke-width:2;cursor:pointer;transition:opacity .15s}
.viz-donut svg:hover .viz-seg{opacity:.55}
.viz-donut svg .viz-seg:hover{opacity:1}
.viz-center-label{fill:var(--viz-muted);font-size:12px}
.viz-center-value{fill:var(--viz-text);font-size:17px;font-weight:700;font-family:Manrope,sans-serif}
.viz-tip{position:absolute;top:6px;z-index:5;pointer-events:none;min-width:170px;max-width:260px;background:var(--c-panel);border:1px solid var(--c-field-line);border-radius:10px;padding:9px 11px;font-size:12px;color:var(--viz-text);box-shadow:0 10px 30px rgba(0,0,0,.25)}
.viz-tip strong{display:block;margin-bottom:5px;font-size:12px}
.viz-tip div{display:flex;align-items:center;gap:7px;line-height:1.7}
.viz-tip div span{flex:1;color:var(--viz-muted)}
.viz-tip div b{font-weight:600}
.viz-tip .viz-tip-total{border-top:1px solid var(--c-line);margin-top:3px;padding-top:3px}
.viz-legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12px;color:var(--viz-muted);margin:8px 0 2px}
.viz-legend span{display:inline-flex;align-items:center;gap:7px}
.viz-key{display:inline-block;flex:none}
.viz-key-line{width:16px;height:3px;border-radius:2px}
.viz-key-box{width:10px;height:10px;border-radius:3px}
.viz-donut{display:grid;grid-template-columns:minmax(150px,220px) minmax(0,1fr);gap:18px;align-items:center}
.viz-donut-legend{list-style:none;margin:0;padding:0;display:grid;gap:7px}
.viz-donut-legend li{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;gap:8px;align-items:center;font-size:12px;color:var(--viz-muted)}
.viz-donut-legend b{color:var(--viz-text);font-weight:600}
.viz-donut-legend small{min-width:42px;text-align:right}
.viz-progress{height:12px;border-radius:999px;background:var(--viz-grid);overflow:hidden}
.viz-progress span{display:block;height:100%;border-radius:999px;background:var(--viz-3)}
.viz-progress-label{font-size:12px;color:var(--viz-muted);margin:6px 0 0}
.viz-table{margin-top:6px}
.viz-table>summary{cursor:pointer;font-size:12px;color:var(--c-accent);font-weight:600}

@media(max-width:1000px){.calc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.calc-body{grid-template-columns:1fr}.calc-inputs{position:static;max-height:none}}
@media(max-width:680px){
 .calc-page{padding:26px 16px 10px}
 .calc-grid{grid-template-columns:1fr}
 .calc-chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;margin:0 -16px;padding-left:16px;padding-right:16px;scrollbar-width:thin}
 .calc-chip{flex:none}
 .calc-head-icon{width:44px;height:44px;font-size:19px}
 .calc-actions .pp-btn{flex:1}
 .calc-jump{flex:1 1 100%}
 .calc-inputs,.calc-results{padding:16px}
 .ci-num input{width:100px}
 .cr-stats{grid-template-columns:1fr 1fr}
 .viz-axis{font-size:22px}
 .viz-donut{grid-template-columns:1fr}
 .viz-donut .viz-plot{max-width:220px;margin:auto}
}
@media(max-width:380px){.cr-stats{grid-template-columns:1fr}}