:root{--primario:#c2410c;--oscuro:#9a3412;--cta:#ea580c;--fondo:#fafaf9;--caja:#fff;--texto:#1c1917;--suave:#78716c;--borde:#e7e5e4;--pro:#15803d;--contra:#b91c1c;--radio:18px;--sombra:0 12px 35px rgba(68,36,20,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--fondo);color:var(--texto);font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.65}a{color:var(--oscuro)}.ancho{width:min(1160px,calc(100% - 32px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:1rem;top:1rem;background:#fff;padding:1rem;z-index:10}.cabecera{background:rgba(250,250,249,.96);border-bottom:1px solid var(--borde);position:sticky;top:0;z-index:5}.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}.marca{font-size:1.55rem;font-weight:900;text-decoration:none;color:var(--texto);letter-spacing:-1px}.marca span{color:var(--primario)}nav a{margin-left:18px;text-decoration:none;font-weight:650}.hero{padding:72px 0;background:radial-gradient(circle at 85% 20%,#fed7aa 0,transparent 32%),linear-gradient(145deg,#fff7ed,#fafaf9)}.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:center}h1{font-size:clamp(2.35rem,6vw,4.9rem);line-height:1.02;letter-spacing:-.055em;margin:.25em 0}h2{font-size:clamp(1.65rem,3vw,2.45rem);line-height:1.15;letter-spacing:-.035em}h3{line-height:1.25}.hero p,.titulo-pagina p{font-size:1.15rem;color:#57534e;max-width:760px}.sobre{text-transform:uppercase;color:var(--primario);font-weight:800;letter-spacing:.11em;font-size:.78rem}.btn{display:inline-block;border:0;border-radius:10px;padding:.78rem 1.05rem;background:var(--cta);color:#fff;text-decoration:none;font-weight:800;text-align:center}.btn:hover{background:var(--oscuro)}.secundario{background:#fff;color:var(--oscuro);border:1px solid #fdba74}.enlace{font-weight:750;margin-left:20px}.medidor{background:#292524;color:#fff;padding:28px;border-radius:var(--radio);box-shadow:var(--sombra)}.medidor h2{margin-top:0}.medidor p{color:#e7e5e4;border-top:1px solid #57534e;padding-top:12px;font-size:1rem}.seccion{padding:64px 0}.categorias{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.cat{background:var(--caja);border:1px solid var(--borde);border-radius:var(--radio);padding:24px;text-decoration:none;color:var(--texto);transition:.2s}.cat:hover{transform:translateY(-4px);box-shadow:var(--sombra);border-color:#fdba74}.cat span{color:#fb923c;font-weight:900;font-size:1.4rem}.cat p{color:var(--suave)}.cat b{color:var(--oscuro)}.comparativa{padding:64px 0;background:#292524;color:#fff}.tabla-wrap{overflow-x:auto;border-radius:14px;border:1px solid var(--borde)}table{border-collapse:collapse;width:100%;background:#fff;color:var(--texto)}th,td{text-align:left;padding:14px;border-bottom:1px solid var(--borde);vertical-align:middle}thead th{background:#fff7ed;color:#7c2d12;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}.nota{color:#d6d3d1;font-size:.88rem}.titulo-pagina{padding:56px 0 42px;background:#fff7ed}.titulo-pagina h1{font-size:clamp(2.2rem,5vw,4rem);max-width:970px}.migas{font-size:.87rem;color:var(--suave);margin-bottom:22px}.migas a{margin:0}.grid-productos{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.tarjeta{background:#fff;border:1px solid var(--borde);border-radius:var(--radio);overflow:hidden}.tarjeta-cuerpo{padding:20px}.tarjeta h3{min-height:3.1em}.foto{aspect-ratio:1/1;background:radial-gradient(circle at 50% 70%,#7c2d12,transparent 8%),radial-gradient(circle at 50% 58%,#fb923c,transparent 20%),linear-gradient(150deg,#fff7ed,#fed7aa);display:flex;align-items:center;justify-content:center;flex-direction:column;padding:20px;text-align:center;color:#7c2d12}.foto .flama{font-size:5rem;transform:rotate(45deg);color:var(--cta);text-shadow:15px -10px 0 #fdba74}.foto small{margin-top:30px;font-weight:800;transform:none}.productos-tabla .foto{width:72px}.rating{color:#b45309;font-weight:800}.rating small{color:var(--suave);font-weight:500}.etiqueta{background:#dcfce7;color:#166534;padding:5px 9px;border-radius:99px;font-size:.75rem;font-weight:800}.acciones{display:flex;gap:8px;flex-wrap:wrap}.guia{max-width:850px;margin:70px auto}.faq details{background:#fff;border:1px solid var(--borde);padding:16px 18px;margin:10px 0;border-radius:12px}.faq summary{font-weight:800;cursor:pointer}.complementaria{background:#ffedd5;border-left:5px solid var(--primario);padding:28px;border-radius:var(--radio)}.ficha{display:grid;grid-template-columns:1fr 1fr;gap:35px;padding:55px 0}.compra{align-self:center;background:#fff;padding:30px;border:1px solid var(--borde);border-radius:var(--radio)}.precio{font-size:2rem;font-weight:900}.compra .btn{width:100%}.mini{font-size:.85rem;color:var(--suave)}.analisis,.proscontras{grid-column:1/-1}.tecnica th{width:45%}.proscontras{display:grid;grid-template-columns:1fr 1fr;gap:22px}.pros,.contras{padding:25px;border-radius:var(--radio);background:#fff}.pros{border-top:5px solid var(--pro)}.contras{border-top:5px solid var(--contra)}.pie{display:flex;justify-content:space-between;padding:44px 0}footer{background:#1c1917;color:#d6d3d1}footer a{color:#fff}@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.categorias{grid-template-columns:repeat(2,1fr)}.grid-productos{grid-template-columns:repeat(2,1fr)}nav{display:none}}@media(max-width:620px){.hero{padding:48px 0}.categorias,.grid-productos,.ficha,.proscontras{grid-template-columns:1fr}.enlace{display:block;margin:16px 0}.productos-tabla .foto{display:none}.productos-tabla th:first-child,.productos-tabla td:first-child{display:none}.productos-tabla th,.productos-tabla td{padding:10px 8px;font-size:.84rem}.productos-tabla .btn{padding:.55rem}.pie{display:block}.grid-productos .tarjeta h3{min-height:0}}
/* Navegación de categorías, imágenes de producto y pie ampliado */
.menu-categorias{display:block;border-top:1px solid var(--borde);background:#fff}.menu-scroll{display:flex;overflow-x:auto;scrollbar-width:thin;overscroll-behavior-inline:contain}.menu-scroll a{flex:0 0 auto;margin:0;padding:10px 14px 11px;border-right:1px solid var(--borde);font-size:.82rem;white-space:nowrap;color:#57534e}.menu-scroll a:first-child{padding-left:0}.menu-scroll a:hover{color:var(--primario)}
.foto{position:relative;display:block;padding:0;overflow:hidden;text-decoration:none;background:#f5eee7}.foto-img{display:block;width:100%;height:100%;background-image:url('/img/productos-calefaccion.png');background-repeat:no-repeat;background-size:400% 200%;transition:transform .25s ease}.foto:hover .foto-img{transform:scale(1.035)}.foto small{position:absolute;left:8px;right:8px;bottom:8px;margin:0;padding:6px 8px;border-radius:8px;background:rgba(28,25,23,.82);color:#fff;font-size:.68rem;line-height:1.2}.foto-0 .foto-img{background-position:0 0}.foto-1 .foto-img{background-position:33.333% 0}.foto-2 .foto-img{background-position:66.666% 0}.foto-3 .foto-img{background-position:100% 0}.foto-4 .foto-img{background-position:0 100%}.foto-5 .foto-img{background-position:33.333% 100%}.foto-6 .foto-img{background-position:66.666% 100%}.foto-7 .foto-img{background-position:100% 100%}.productos-tabla .foto{height:72px}.pie{gap:60px}.pie-marca{max-width:340px}.pie-categorias{flex:1}.pie-categorias h2{color:#fff;font-size:1rem;letter-spacing:0}.pie-categorias ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 28px;margin:0;padding:0;list-style:none}.pie-categorias a{text-decoration:none}.pie-categorias a:hover{text-decoration:underline}
.foto>img{display:block;width:100%;height:100%;object-fit:contain;background:#fff;transition:transform .25s ease}.foto:hover>img{transform:scale(1.035)}
@media(max-width:900px){.nav-principal{display:none}.menu-categorias{display:block}.menu-scroll{width:100%;padding-left:16px;padding-right:16px}.menu-scroll a:first-child{padding-left:4px}}
@media(max-width:620px){.pie-categorias ul{grid-template-columns:1fr}.pie-categorias{margin-top:32px}.cabecera{position:sticky}.nav{min-height:58px}}