/* calefactor.net — hoja de estilos global */
:root{
  --paper:#FBFAF7; --ink:#22252E; --steel:#5D6675; --mist:#F1EFE9;
  --line:#E4E1D8; --flame:#E8590C; --amber:#F5A50B; --deep:#B44708; --flame-btn:#C44A08;
  --ok:#2B7A3E; --bad:#C0392B; --card:#FFFFFF;
  --heat:linear-gradient(90deg,#F5A50B,#E8590C);
  --r:10px; --wrap:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
a{color:var(--deep);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--flame)}
:focus-visible{outline:3px solid var(--flame);outline-offset:2px;border-radius:4px}
img,svg{max-width:100%;height:auto;display:block}

/* Cabecera */
.site-head{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;gap:18px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.25rem;letter-spacing:-.02em;text-decoration:none;color:var(--ink)}
.logo span{background:var(--heat);-webkit-background-clip:text;background-clip:text;color:transparent}
.menu-btn{display:none;margin-left:auto;background:var(--mist);border:1px solid var(--line);border-radius:8px;padding:8px 14px;font:inherit;font-weight:600;cursor:pointer}
.nav-links{display:flex;gap:4px;list-style:none;margin:0 0 0 auto;padding:0;flex-wrap:wrap}
.nav-links a{display:block;padding:8px 11px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:600;font-size:.94rem}
.nav-links a:hover,.nav-links a[aria-current]{background:var(--mist);color:var(--deep)}
@media(max-width:860px){
  .menu-btn{display:block}
  .nav-links{display:none;flex-direction:column;width:100%;padding-bottom:12px}
  .nav-links.open{display:flex}
}

/* Migas y avisos */
.crumbs{font-size:.85rem;color:var(--steel);margin:18px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.crumbs li+li::before{content:"›";margin-right:6px;color:var(--line)}
.disclosure{font-size:.8rem;color:var(--steel);background:var(--mist);border:1px solid var(--line);border-radius:8px;padding:8px 12px;margin:16px 0}

/* Titulares — firma: regla de calor bajo el h1 */
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.74rem;font-weight:700;color:var(--steel)}
h1{font-size:clamp(1.75rem,4vw,2.6rem);line-height:1.15;letter-spacing:-.025em;margin:.35em 0 .3em;font-weight:800}
h1::after{content:"";display:block;width:88px;height:5px;border-radius:3px;background:var(--heat);margin-top:14px}
h2{font-size:clamp(1.3rem,2.6vw,1.7rem);letter-spacing:-.02em;margin:1.8em 0 .5em;font-weight:800}
h3{font-size:1.12rem;margin:1.2em 0 .4em}
.lead{font-size:1.12rem;color:#3A4150;max-width:62ch}
.updated{font-size:.82rem;color:var(--steel)}

/* Héroe portada */
.hero{padding:44px 0 34px;background:linear-gradient(180deg,#fff 0%,var(--paper) 100%);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr}}
.hero-art{background:var(--mist);border:1px solid var(--line);border-radius:14px;padding:22px}

/* Tarjetas de producto */
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));margin:20px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.prod{display:flex;flex-direction:column;gap:10px;position:relative}
.badge{position:absolute;top:-12px;left:16px;background:var(--heat);color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:99px}
.prod h3{margin:6px 0 0}
.score-row{display:flex;align-items:center;gap:10px}
.heat{flex:1;height:10px;border-radius:99px;background:var(--mist);overflow:hidden}
.heat span{display:block;height:100%;width:var(--h,50%);background:var(--heat);border-radius:99px}
.score{font-weight:800;font-size:1.05rem;color:var(--deep)}
.specs{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.specs li{background:var(--mist);border-radius:6px;padding:3px 9px;font-size:.8rem;font-weight:600;color:#454C59}
.pros,.cons{margin:0;font-size:.92rem}
.pros{color:var(--ok)}.cons{color:var(--bad)}
.btn{display:inline-block;background:var(--flame-btn);color:#fff;font-weight:700;text-decoration:none;text-align:center;padding:12px 20px;border-radius:9px;margin-top:auto}
.btn:hover{background:var(--deep);color:#fff}
.btn-o{display:inline-block;border:2px solid var(--flame);color:var(--deep);font-weight:700;text-decoration:none;padding:10px 18px;border-radius:9px}

/* Tablas */
.tbl-scroll{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table{border-collapse:collapse;width:100%;font-size:.92rem;min-width:640px}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line)}
thead th{background:var(--mist);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em}
tbody tr:last-child td{border-bottom:0}
td a{font-weight:600}

/* Bloques de enlaces internos */
.linkgrid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));padding:0;margin:16px 0;list-style:none}
.linkgrid a{display:block;background:#fff;border:1px solid var(--line);border-radius:9px;padding:13px 15px;text-decoration:none;font-weight:600;color:var(--ink)}
.linkgrid a:hover{border-color:var(--flame);color:var(--deep)}
.linkgrid small{display:block;font-weight:400;color:var(--steel);margin-top:2px}

/* FAQ */
details{border:1px solid var(--line);border-radius:9px;background:#fff;margin:10px 0;padding:0 16px}
summary{cursor:pointer;font-weight:700;padding:13px 0;list-style:none}
summary::before{content:"+";display:inline-block;width:22px;color:var(--flame);font-weight:800}
details[open] summary::before{content:"–"}
details p{margin:0 0 14px 22px;color:#3A4150}

/* Calculadora */
.calc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;max-width:640px}
.calc label{display:block;font-weight:700;margin:14px 0 4px}
.calc input,.calc select{width:100%;font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper)}
.calc .hint{font-size:.82rem;color:var(--steel)}
.result{margin-top:18px;background:var(--mist);border-left:4px solid var(--flame);border-radius:8px;padding:16px;font-size:1.02rem}
.result strong{color:var(--deep)}

/* Mapa */
#mapa{height:460px;border-radius:12px;border:1px solid var(--line);background:var(--mist)}

/* CTA banda */
.band{background:var(--ink);color:#fff;border-radius:14px;padding:26px;margin:36px 0;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.band a{color:#fff}
.band .btn{background:var(--amber);color:var(--ink)}

/* Pie */
.site-foot{margin-top:60px;background:#fff;border-top:1px solid var(--line);padding:36px 0 24px;font-size:.9rem}
.foot-grid{display:grid;gap:26px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.site-foot h2{font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;margin:0 0 10px}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin:6px 0}
.site-foot a{color:var(--steel);text-decoration:none}
.site-foot a:hover{color:var(--deep);text-decoration:underline}
.legal{border-top:1px solid var(--line);margin-top:26px;padding-top:16px;color:var(--steel);font-size:.8rem}
main{min-height:50vh}
section.pad{margin:34px 0}