:root{
  --bg:#F5F7F4; --paper:#FFFFFF; --ink:#16211D; --muted:#5B6862; --line:#D5DDD8;
  --accent:#0F7B5F; --accent-ink:#FFFFFF; --mint:#E2F0E9; --amber:#9A5B00;
  --r:6px;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#101614; --paper:#17201D; --ink:#E7EEEA; --muted:#9AA8A1; --line:#2B3833;
    --accent:#3FBF94; --accent-ink:#0B1411; --mint:#1C2E27; --amber:#E0A84B; }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 "Figtree",system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.site{border-bottom:1px solid var(--line);background:var(--paper)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}
.logo{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:1.25rem;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.logo span{color:var(--accent)}
nav.main{display:flex;gap:18px;flex-wrap:wrap}
nav.main a{color:var(--muted);text-decoration:none;font-size:.95rem}
nav.main a:hover,nav.main a[aria-current]{color:var(--ink)}
h1,h2,h3{font-family:"Bricolage Grotesque",sans-serif;letter-spacing:-.02em;line-height:1.15}
h1{font-size:clamp(2rem,4.5vw,3rem);margin:40px 0 8px}
h2{font-size:1.5rem;margin:40px 0 10px}
h3{font-size:1.1rem;margin:24px 0 6px}
.lead{color:var(--muted);max-width:62ch;margin:0 0 28px}
main{padding-bottom:64px}
/* Calculadora */
.calc{display:grid;grid-template-columns:1fr 380px;gap:28px;align-items:start}
@media(max-width:860px){.calc{grid-template-columns:1fr}}
.form{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;margin-bottom:6px}
.field small{display:block;color:var(--muted);font-size:.85rem;margin-top:4px}
.input{display:flex;align-items:center;border:1px solid var(--line);border-radius:var(--r);background:var(--bg)}
.input:focus-within{border-color:var(--accent)}
.input input,.input select{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:inherit;padding:11px 12px;font-variant-numeric:tabular-nums}
.input input:focus,.input select:focus{outline:none}
.input .unit{padding:0 12px;color:var(--muted)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:480px){.row2{grid-template-columns:1fr}}
.seg{display:flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.seg label{flex:1;margin:0;text-align:center;padding:10px 6px;cursor:pointer;font-weight:500;border-right:1px solid var(--line)}
.seg label:last-child{border-right:0}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg input:checked+span{color:var(--accent);font-weight:700}
.seg label:has(input:checked){background:var(--mint)}
.seg label:has(input:focus-visible){outline:3px solid var(--accent);outline-offset:-3px}
/* Ticket de resultado */
.ticket{position:sticky;top:16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px 24px 20px;
  background-image:radial-gradient(circle at 10px -4px,var(--bg) 8px,transparent 9px);background-size:20px 20px;background-repeat:repeat-x;background-position:0 100%}
.ticket .label{color:var(--muted);font-size:.9rem;margin:0}
.big{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:clamp(2.4rem,6vw,3.2rem);line-height:1;margin:6px 0 4px;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.big small{font-size:.4em;font-weight:600;color:var(--muted);letter-spacing:0}
.lines{margin:18px 0 0;padding:14px 0 0;border-top:2px dashed var(--line)}
.lines div{display:flex;justify-content:space-between;gap:12px;padding:5px 0;font-variant-numeric:tabular-nums}
.lines dt{color:var(--muted)}
.lines dd{margin:0;font-weight:600;text-align:right}
.lines .total{border-top:1px solid var(--line);margin-top:6px;padding-top:10px}
.note{font-size:.82rem;color:var(--muted);margin:16px 0 0}
.bar{display:flex;height:10px;border-radius:5px;overflow:hidden;margin:14px 0 4px;background:var(--line)}
.bar i{display:block;height:100%}
.bar i:first-child{background:var(--accent)}
.bar i:last-child{background:var(--amber)}
.legend{display:flex;gap:14px;font-size:.82rem;color:var(--muted)}
.legend b{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}
/* Tablas */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--paper)}
table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums;font-size:.95rem}
th,td{padding:9px 14px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}
th:first-child,td:first-child{text-align:left}
thead th{background:var(--mint);font-weight:700}
tbody tr:last-child td{border-bottom:0}
/* Contenido */
.prose{max-width:70ch}
.prose p,.prose li{color:var(--ink)}
details{border-bottom:1px solid var(--line);padding:12px 0}
summary{cursor:pointer;font-weight:600}
/* Home */
.tools{list-style:none;padding:0;margin:8px 0 0;border-top:1px solid var(--line)}
.tools li{border-bottom:1px solid var(--line)}
.tools a{display:grid;grid-template-columns:1fr auto;gap:4px 24px;padding:22px 4px;text-decoration:none;color:var(--ink)}
.tools a:hover .t{color:var(--accent)}
.tools .t{font-family:"Bricolage Grotesque",sans-serif;font-size:1.45rem;font-weight:700;letter-spacing:-.02em}
.tools .d{color:var(--muted);grid-column:1}
.tools .ex{grid-row:1/3;grid-column:2;align-self:center;font-family:"Bricolage Grotesque",sans-serif;font-weight:700;font-size:1.3rem;color:var(--accent);font-variant-numeric:tabular-nums;text-align:right}
.tools .ex small{display:block;font-family:"Figtree",sans-serif;font-weight:400;font-size:.8rem;color:var(--muted)}
@media(max-width:560px){.tools a{grid-template-columns:1fr}.tools .ex{grid-row:auto;grid-column:1;text-align:left}}
/* Anuncios */
.ad-slot{margin:32px 0;min-height:0}
.ad-slot:empty{display:none}
footer.site{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:.9rem}
footer.site .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer.site a{color:var(--muted)}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}