/* Herramienta de trabajo: secciones numeradas arriba, resultado grande debajo. Tinta azul petróleo, acento ámbar solar. */
:root{
  --bg:#F3F6F5; --card:#FFFFFF; --ink:#0F2A2E; --muted:#5B6F72; --line:#D8E1DF;
  --sun:#E39B12; --sun-soft:#FCF1DC; --sun-ink:#9A6200; --good:#1E8A5A; --good-soft:#E3F4EB; --bad:#C2452D; --bad-soft:#FBE7E2;
  --bar-a:#C9D5D3; --bar-b:#0F2A2E; --peak:#FCF1DC;
  --display:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif; --num:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0C1A1C; --card:#13262A; --ink:#E6EFEE; --muted:#93A8AA; --line:#24393D;
  --sun:#F0B03A; --sun-soft:#33280F; --sun-ink:#F0B03A; --good:#4CC28A; --good-soft:#123326; --bad:#F07A62; --bad-soft:#3A1A14;
  --bar-a:#3A5256; --bar-b:#F0B03A; --peak:#2A220F; color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.45 var(--display);
  padding:20px max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px))}
.wrap{max-width:760px;margin:0 auto;display:grid;gap:16px}
.top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
h1{font-size:clamp(1.5rem,5vw,2rem);font-weight:800;margin:0;letter-spacing:-.02em;text-wrap:balance}
.lead{margin:4px 0 0;color:var(--muted)}
.brand{margin:0 0 10px;line-height:0}
.brand img{display:block;height:28px;width:auto;max-width:100%}
h2{font-size:1.05rem;font-weight:800;margin:0 0 12px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
h3{font-size:.95rem;font-weight:700;margin:0 0 10px}
.step{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--ink);color:var(--card);font-size:.8rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;min-width:0}
.ex{background:var(--sun-soft);font-size:.7rem;font-weight:700;padding:3px 8px;border-radius:99px;letter-spacing:.05em;text-transform:uppercase}
.pane{display:grid;gap:12px;margin-top:12px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.fields.three{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
@media (max-width:480px){.fields{grid-template-columns:1fr}}
.f{display:grid;grid-template-columns:minmax(0,1fr);gap:4px;min-width:0;align-content:start}
.f>label{font-size:.9rem;font-weight:500}
small,.hint,.small{color:var(--muted);font-size:.8rem}
.hint{display:block;margin-top:8px}
.inp{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.inp input{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:500 1.1rem var(--num);padding:10px 12px;border-radius:10px}
.inp span{padding:0 12px;color:var(--muted);font-size:.85rem;white-space:nowrap}
.inp:focus-within{border-color:var(--sun);box-shadow:0 0 0 3px var(--sun-soft)}
.inp input:focus{outline:none}
select{width:100%;font:500 1rem var(--display);padding:11px 10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink)}
.chk{display:flex;gap:6px;align-items:center;font-size:.85rem;color:var(--muted)}
.seg{display:inline-flex;flex-wrap:wrap;border:1px solid var(--line);border-radius:10px;overflow:hidden;max-width:100%}
.seg button{border:0;background:transparent;color:var(--ink);font:500 .92rem var(--display);padding:10px 14px;cursor:pointer}
.seg.small button{font-size:.85rem;padding:8px 12px}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--card)}
.btn{font:700 .9rem var(--display);padding:10px 14px;border-radius:10px;cursor:pointer;border:1px solid var(--ink);background:transparent;color:var(--ink)}
.slider{display:grid;gap:6px;margin-top:14px}
.slider label{font-size:.9rem;font-weight:500}
.slider b{font:500 1rem var(--num)}
.slider input{width:100%;accent-color:var(--sun)}
.drop{position:relative;display:grid;gap:4px;place-items:center;text-align:center;padding:22px 12px;border:2px dashed var(--sun);border-radius:12px;background:var(--sun-soft)}
.drop input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.drop:focus-within{outline:2px solid var(--sun);outline-offset:2px}
.dropT{font-weight:800;font-size:1.05rem}
.dropS{font-size:.85rem;color:var(--muted)}
.msg{margin:0;font-size:.9rem}
.msg.err{color:var(--bad)} .msg.ok{color:var(--good)}
.msg.prod{margin-top:10px}
.warn{color:var(--sun-ink);font-weight:700}
.result{display:grid;gap:16px}
.verdict{border-radius:14px;padding:22px 18px;display:grid;gap:6px}
.verdict.good{background:var(--good-soft);color:var(--good)}
.verdict.bad{background:var(--bad-soft);color:var(--bad)}
.verdict .big{font-size:clamp(1.6rem,6vw,2.4rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;text-wrap:balance}
.verdict .sub{color:var(--ink)}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media (max-width:640px){.kpis{grid-template-columns:1fr 1fr}}
.k{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;min-width:0}
.k b{display:block;font:500 1.2rem var(--num);font-variant-numeric:tabular-nums}
.k span{font-size:.78rem;color:var(--muted)}
.chart{overflow-x:auto}
.chart svg{display:block;width:100%;height:auto}
.chart text{font-family:var(--display)}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.8rem;color:var(--muted);margin-bottom:6px}
.sw{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}
.sw.a{background:var(--bar-a)} .sw.b{background:var(--bar-b)} .sw.g{background:var(--good)} .sw.sun{background:var(--sun)}
.claim{margin:6px 0 0}
a{color:var(--sun-ink)}
.foot a{color:var(--muted)}
.brand a{display:inline-block}
a.btn{display:block;text-align:center;text-decoration:none}
.lead.answer{color:var(--ink);font-size:1.08rem;margin-top:10px}
.links{margin:0 0 8px;padding-left:20px;display:grid;gap:6px}
.iva{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted)}
.iva select{flex:1;font-size:.85rem;padding:8px 10px}
.ded-info{margin:10px 0 0}
.sw.p{background:var(--peak);border:1px solid var(--sun)}
.dlg{width:min(420px,calc(100% - 32px));padding:20px;border:1px solid var(--line);border-radius:14px;background:var(--card);color:var(--ink)}
.dlg::backdrop{background:rgba(0,0,0,.45)}
.dlg form{display:grid;gap:12px}
.dlg h2{margin:0}
.dlg small{font-weight:400}
.dlg-b{display:flex;justify-content:flex-end;gap:10px;margin-top:4px}
.btn.primary{background:var(--ink);color:var(--card)}
#frKwh{margin:8px 0 0}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
td,th{padding:9px 6px;border-bottom:1px solid var(--line);text-align:right;font-size:.92rem}
td:first-child,th:first-child{text-align:left}
th{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
tr.cur td{font-weight:700}
.pos{color:var(--good)} .neg{color:var(--bad)}
details summary{cursor:pointer;color:var(--muted);font-size:.92rem}
.foot{color:var(--muted);font-size:.8rem;text-align:center}
.foot p{margin:4px 0}
button:focus-visible,select:focus-visible,input[type=checkbox]:focus-visible,input[type=range]:focus-visible,summary:focus-visible{outline:2px solid var(--sun);outline-offset:2px}
[hidden]{display:none!important}
.inp.miss{border-color:var(--bad);background:var(--bad-soft)}
.inp.got{border-color:var(--good)}
.btn.calc{background:var(--ink);color:var(--card);font-size:1.05rem;padding:15px;border-radius:12px;width:100%}
.bar{position:fixed;left:0;right:0;bottom:0;z-index:20;border:0;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:2px;
  padding:12px max(16px,env(safe-area-inset-right,0px)) calc(12px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));
  font:inherit;color:#fff;box-shadow:0 -4px 16px rgba(0,0,0,.15);transition:transform .25s ease,background .25s}
.bar.good{background:var(--good)} .bar.bad{background:var(--bad)}
.bar #barT{font-weight:800;font-size:1.05rem}
.bar #barS{font:500 .85rem var(--num);opacity:.92}
.result-visible .bar{transform:translateY(110%)}
body{padding-bottom:96px}
.verdict.flash{animation:fl .5s ease}
@keyframes fl{from{transform:scale(.985);opacity:.6}to{transform:none;opacity:1}}
@media (prefers-reduced-motion:reduce){.verdict.flash{animation:none}.bar{transition:none}}
@media (prefers-color-scheme:dark){.bar{color:#0C1A1C}}

/* Informe impreso (Imprimir informe → Guardar como PDF). En pantalla, lo de .print-only no se ve. */
.print-only,.print-only-in{display:none}
@media print{
  /* Siempre en claro, aunque el sistema esté en modo oscuro */
  :root{--bg:#FFFFFF; --card:#FFFFFF; --ink:#0F2A2E; --muted:#5B6F72; --line:#D8E1DF;
    --sun:#E39B12; --sun-soft:#FCF1DC; --sun-ink:#9A6200; --good:#1E8A5A; --good-soft:#E3F4EB; --bad:#C2452D; --bad-soft:#FBE7E2;
    --bar-a:#C9D5D3; --bar-b:#0F2A2E; --peak:#FCF1DC; color-scheme:light}
  @page{size:A4;margin:12mm 12mm 14mm}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  html{font-size:13px}
  body{background:#fff;font-size:13px;padding:0!important}
  .wrap{max-width:none;gap:10px}
  .noprint,.bar{display:none!important}
  .print-only{display:block}
  .print-only-in{display:inline}
  .print-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding-bottom:10px;border-bottom:2px solid var(--ink)}
  .print-head img{height:28px;width:auto}
  .ph-t{text-align:right}
  .ph-t h1{font-size:1.35rem;margin:0}
  .ph-t p{margin:2px 0 0;color:var(--muted)}
  .result{gap:10px}
  .verdict{padding:14px 16px;border:1px solid var(--line)}
  .verdict .big{font-size:1.7rem}
  .kpis{grid-template-columns:repeat(4,1fr);gap:8px}
  .card{padding:12px 14px}
  .card,.k,.verdict,.kpis,tr{break-inside:avoid}
  .chart svg{width:auto;max-width:100%;max-height:44mm;margin:0 auto}
  .legend{margin-bottom:2px}
  #esc td,#esc th,.result table th{padding:4px 6px}
  h3{break-after:avoid}
  .datos th,.datos td{padding:5px 6px;font-size:.92rem;text-align:left;vertical-align:top}
  .datos th{width:30%;text-transform:none;letter-spacing:0;font-weight:500;color:var(--muted)}
  .foot{margin-top:6px}
}