:root{--c:#1F6F78;--c2:#174F55;--acc:#E8A33D;--bg:#F7F5F0;--card:#fff;--tx:#1d2b2d;--mut:#5b6b6d;--bd:#dfe5e4;--ok:#2E8B57;--bad:#c0392b;--r:14px}
@media (prefers-color-scheme:dark){:root{--bg:#121a1b;--card:#1b2526;--tx:#e8eeee;--mut:#9fb0b1;--bd:#2c3a3b;--c:#3aa3ad;--c2:#7fd0d7}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--tx)}
a{color:var(--c)}a:hover{color:var(--c2)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.top{background:var(--card);border-bottom:1px solid var(--bd)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;font-size:20px;text-decoration:none;color:var(--tx)}.logo span{color:var(--c)}
nav.menu{display:flex;gap:14px;flex-wrap:wrap;font-size:14px}nav.menu a{text-decoration:none;color:var(--mut)}nav.menu a:hover{color:var(--c)}
.crumbs{font-size:13px;color:var(--mut);margin:18px 0 0}.crumbs a{color:var(--mut)}
h1{font-size:clamp(26px,4.4vw,38px);line-height:1.15;margin:10px 0 8px;letter-spacing:-.5px}
h2{font-size:24px;line-height:1.25;margin:36px 0 10px}h3{font-size:19px;margin:24px 0 6px}
.lead{color:var(--mut);font-size:18px;margin:0 0 20px;max-width:760px}
.upd{display:inline-block;font-size:13px;background:#e6f2f3;color:#174F55;border-radius:999px;padding:3px 12px;font-weight:600}
@media (prefers-color-scheme:dark){.upd{background:#21393b;color:#bfe7ea}}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0 8px}
@media (max-width:760px){.calc{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:20px}
.card h2{margin:0 0 12px;font-size:19px}
label{display:block;font-weight:600;font-size:14px;margin:12px 0 5px}
label small{font-weight:400;color:var(--mut)}
input,select{width:100%;font:inherit;padding:11px 12px;border:1px solid var(--bd);border-radius:10px;background:var(--bg);color:var(--tx)}
input:focus,select:focus{outline:2px solid var(--c);outline-offset:1px;border-color:var(--c)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row.tres{grid-template-columns:1fr 1fr .8fr}
@media (max-width:700px){.row.tres{grid-template-columns:1fr}}
.seg{display:flex;border:1px solid var(--bd);border-radius:10px;overflow:hidden}
.seg label{flex:1;margin:0;text-align:center;padding:10px 6px;cursor:pointer;font-weight:600;font-size:14px;background:var(--bg)}
.seg input{position:absolute;opacity:0;width:1px;height:1px}
.seg input:checked+span{color:#fff}.seg label:has(input:checked){background:var(--c);color:#fff}
.check{display:flex;gap:8px;align-items:center;font-weight:500}.check input{width:auto}
.big{background:var(--c);color:#fff;border-radius:12px;padding:16px 18px;margin-bottom:12px}
.big .k{font-size:14px;opacity:.9}.big .v{font-size:34px;font-weight:800;letter-spacing:-.5px;line-height:1.15}
.big .s{font-size:14px;opacity:.92}
table.res{width:100%;border-collapse:collapse;font-size:15px}
table.res td{padding:8px 4px;border-bottom:1px solid var(--bd)}table.res td:last-child{text-align:right;font-weight:600;white-space:nowrap}
table.res tr.tot td{font-weight:800;border-bottom:0}
.neg{color:var(--bad)}.pos{color:var(--ok)}
.bar{height:14px;border-radius:7px;overflow:hidden;display:flex;margin:12px 0 6px;background:var(--bd)}
.bar i{display:block;height:100%}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--mut)}.legend b{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}
.note{font-size:13px;color:var(--mut);margin-top:10px}
.cta{display:flex;gap:16px;align-items:center;background:linear-gradient(135deg,#1F6F78,#174F55);color:#fff;border-radius:var(--r);padding:20px;margin:26px 0}
.cta p{margin:4px 0 0;opacity:.92}.cta strong{font-size:18px}
.cta a.btn{margin-left:auto;background:var(--acc);color:#1d2b2d;text-decoration:none;font-weight:800;padding:12px 18px;border-radius:10px;white-space:nowrap}
.guide-row{display:flex;flex-wrap:wrap;gap:10px;margin:4px 0 18px}
.guide-row a{background:var(--c);color:#fff;text-decoration:none;font-weight:800;padding:10px 14px;border-radius:10px}
.guide-row a:hover{background:var(--c2);color:#fff}
@media (max-width:640px){.cta{flex-direction:column;align-items:flex-start}.cta a.btn{margin-left:0}}
article{max-width:780px}article p,article li{font-size:16.5px}
article table{border-collapse:collapse;width:100%;margin:12px 0;font-size:14.5px;display:block;overflow-x:auto}
article th,article td{border:1px solid var(--bd);padding:7px 9px;text-align:left;white-space:nowrap}article th{background:var(--card)}
.faq details{background:var(--card);border:1px solid var(--bd);border-radius:10px;padding:12px 16px;margin:8px 0}
.faq summary{font-weight:700;cursor:pointer}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:18px 0}
.tile{display:block;background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:18px;text-decoration:none;color:var(--tx);transition:transform .15s,border-color .15s}
.tile:hover{transform:translateY(-2px);border-color:var(--c);color:var(--tx)}
.tile .ic{font-size:26px}.tile h3{margin:8px 0 4px;font-size:17px}.tile p{margin:0;color:var(--mut);font-size:14px}
.ad{margin:22px 0;min-height:0}
.scroll{overflow-x:auto}
table.tab{width:100%;border-collapse:collapse;font-size:14px}table.tab th,table.tab td{padding:6px 8px;border-bottom:1px solid var(--bd);text-align:right;white-space:nowrap}table.tab th:first-child,table.tab td:first-child{text-align:left}
svg.chart{width:100%;height:auto;display:block}
footer{border-top:1px solid var(--bd);margin-top:50px;padding:24px 0 40px;font-size:14px;color:var(--mut)}
footer a{color:var(--mut);margin-right:14px}
.disclaimer{font-size:13px;color:var(--mut);border-left:3px solid var(--acc);padding:6px 12px;margin:18px 0}
.cookie{position:fixed;left:12px;right:12px;bottom:12px;max-width:560px;margin:0 auto;background:var(--card);border:1px solid var(--bd);border-radius:12px;padding:14px 16px;box-shadow:0 10px 30px rgba(0,0,0,.18);font-size:14px;display:none;z-index:50}
.cookie button{font:inherit;font-weight:700;border:0;border-radius:8px;padding:8px 14px;margin:8px 8px 0 0;cursor:pointer;background:var(--c);color:#fff}
.cookie button.sec{background:var(--bd);color:var(--tx)}
.row>*{min-width:0}input[type=date]{min-width:0;max-width:100%}
@media (max-width:700px){nav.menu{flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;padding-bottom:6px;scrollbar-width:none}nav.menu::-webkit-scrollbar{display:none}}
.calc form h2+label{margin-top:0}
.calc details.adv{margin-top:18px;border-top:1px solid var(--bd);padding-top:12px}.calc details.adv summary{cursor:pointer;font-weight:700;color:var(--c)}
.calc details.adv summary:focus-visible{outline:2px solid var(--c);outline-offset:2px}
/* Placas NFC */
.nfc-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;margin:8px 0 10px}
.nfc-hero>*{min-width:0}.nfc-hero img,.nfc-wide,.nfc-gal img,.nfc-two img{width:100%;height:auto;border-radius:var(--r);display:block;border:1px solid var(--bd)}
.nfc-checks{list-style:none;padding:0;margin:0 0 18px;display:grid;grid-template-columns:1fr 1fr;gap:8px 16px}
.nfc-checks li{padding-left:24px;position:relative}.nfc-checks li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}
.btn-wa,.wa-float{display:inline-block;background:#1FA855;color:#fff;font-weight:800;text-decoration:none;padding:14px 22px;border-radius:12px;font-size:17px}
.btn-wa:hover,.wa-float:hover{background:#178C46;color:#fff}
.nfc-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:12px 0 18px}
.nfc-steps>div{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:18px}
.nfc-steps b{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--c);color:#fff}
.nfc-steps h3{margin:10px 0 4px}.nfc-steps p{margin:0;color:var(--mut)}
.nfc-wide{max-width:560px;margin:0 auto}
.nfc-gal{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.nfc-gal figure{margin:0}.nfc-gal figcaption{text-align:center;font-weight:700;margin-top:8px}
.nfc-two{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:start}.nfc-two>*{min-width:0}
.wa-float{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:40;box-shadow:0 8px 24px rgba(0,0,0,.2);padding:12px 18px;font-size:15px}
.etsy-caja{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;border:1px solid var(--bd);border-radius:var(--r);padding:12px 16px;margin:22px 0;background:var(--card)}
.etsy-caja p{margin:0;color:var(--mut);font-size:15px}.etsy-caja a{font-weight:800;white-space:nowrap}
.warn{background:#fdecea;color:#7a241c;border-radius:10px;padding:10px 12px;margin-top:10px}
.persona{display:flex;gap:8px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:8px 0;border-bottom:1px solid var(--bd)}
.persona button,.mini{font:inherit;font-weight:700;border:0;border-radius:10px;padding:8px 12px;cursor:pointer;background:var(--c);color:#fff}
.persona button.sec,.mini.sec{background:var(--bg);color:var(--tx);border:1px solid var(--bd)}
@media (prefers-color-scheme:dark){.warn{background:#3a2220;color:#f3c1bb}}
@media (max-width:760px){.nfc-hero,.nfc-two{grid-template-columns:1fr}.nfc-hero img{max-width:420px}.nfc-steps,.nfc-gal{grid-template-columns:1fr}.nfc-gal{grid-template-columns:1fr 1fr}.nfc-checks{grid-template-columns:1fr}}