:root{
  --primario:#1F4E79;
  --secundario:#2E75B6;
  --acento:#E5F0F8;
  --urgencia:#D04A02;
  --texto:#333;
  --gris:#6b7280;
  --borde:#e5e7eb;
  --fondo:#f5f5f5;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','Source Sans Pro',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:17px;line-height:1.6;color:var(--texto);margin:0;background:#fff}
.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}
img{max-width:100%;height:auto}

/* Header */
header.site-header{background:#fff;border-bottom:1px solid var(--borde);position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding-top:1rem;padding-bottom:1rem;gap:1rem}
.logo{font-weight:800;font-size:1.6rem;color:var(--primario);text-decoration:none;letter-spacing:-.02em}
.logo span{color:var(--urgencia)}
nav.primary ul{display:flex;gap:1.5rem;list-style:none;margin:0;padding:0;flex-wrap:wrap}
nav.primary > ul > li{position:relative}
nav.primary a{color:var(--texto);text-decoration:none;font-weight:500;font-size:.95rem;display:inline-flex;align-items:center;gap:.25rem}
nav.primary a:hover,nav.primary a.active{color:var(--primario)}
nav.primary .has-dropdown > a::after{content:"▾";font-size:.7em;color:var(--gris);margin-left:.2rem}
nav.primary .dropdown{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--borde);border-radius:8px;box-shadow:0 10px 30px rgba(31,78,121,.15);padding:.5rem;min-width:260px;list-style:none;margin:0;display:none;flex-direction:column;gap:0;z-index:100}
nav.primary li.has-dropdown:hover > .dropdown,nav.primary li.has-dropdown:focus-within > .dropdown{display:flex}
nav.primary .dropdown li{position:static}
nav.primary .dropdown a{display:block;padding:.65rem .85rem;border-radius:5px;font-size:.92rem;color:var(--texto)}
nav.primary .dropdown a:hover{background:var(--acento);color:var(--primario)}
nav.primary .dropdown a strong{display:block;color:var(--primario);font-size:.93rem}
nav.primary .dropdown a small{display:block;color:var(--gris);font-size:.78rem;margin-top:.15rem;font-weight:400}
.nav-cta{display:inline-block;background:var(--urgencia);color:#fff !important;padding:.5rem 1rem;border-radius:6px;font-size:.9rem;font-weight:600}
.nav-cta:hover{background:#b03d00;color:#fff !important}
@media (max-width:768px){
  nav.primary .dropdown{position:static;display:flex;box-shadow:none;border:0;padding:0 0 0 1rem;min-width:auto;background:transparent}
  nav.primary .has-dropdown > a::after{display:none}
  nav.primary .dropdown a{padding:.3rem 0;font-size:.88rem}
}

/* Typography */
h1,h2,h3,h4{font-weight:700;color:var(--primario);line-height:1.25;margin:0 0 1rem}
h1{font-size:2.6rem;letter-spacing:-.015em}
h2{font-size:1.9rem;margin:2.5rem 0 1rem}
h3{font-size:1.2rem;margin:1.5rem 0 .5rem}
h4{font-size:1rem}
p{margin:0 0 1rem}
a{color:var(--secundario)}
strong{color:var(--primario)}

/* Sections */
section{padding:3.5rem 0}
.hero{background:linear-gradient(180deg,#fff 0%,var(--acento) 100%);padding:4rem 0 3rem}
.hero .eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.85rem;color:var(--secundario);font-weight:700;margin:0 0 1rem}
.hero h1{margin-bottom:1.25rem;max-width:18ch}
.lead{font-size:1.2rem;line-height:1.55;color:#444;max-width:62ch;margin:0 0 1.5rem}

/* CTAs */
.cta-group{display:flex;flex-wrap:wrap;gap:.75rem;margin:1.5rem 0}
.btn{display:inline-block;padding:.85rem 1.5rem;border-radius:6px;text-decoration:none;font-weight:600;font-size:1rem;transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.1)}
.btn-primary{background:var(--urgencia);color:#fff}
.btn-secondary{background:transparent;color:var(--primario);border:2px solid var(--primario)}

/* Urgencia F-Gas block */
.urgencia-fgas{background:#FFF4ED;border-left:5px solid var(--urgencia);padding:2.5rem 2rem;margin:0;border-radius:0 8px 8px 0}
.urgencia-fgas h2{color:var(--urgencia);margin-top:0;margin-bottom:1rem;font-size:1.65rem}
.urgencia-fgas .btn-primary{background:var(--urgencia)}

/* Tres líneas */
.tres-lineas{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin:2rem 0}
.card{background:#fff;border:1px solid var(--borde);padding:2rem;border-radius:10px;transition:box-shadow .2s,transform .2s;display:flex;flex-direction:column}
.card:hover{box-shadow:0 10px 30px rgba(31,78,121,.1);transform:translateY(-2px)}
.card h3{margin-top:0;font-size:1.25rem;color:var(--primario)}
.card .more{margin-top:auto;font-weight:600;text-decoration:none;color:var(--secundario);padding-top:1rem}
.card .more:hover{color:var(--primario)}

/* Lists */
ul,ol{padding-left:1.4rem}
li{margin:.4rem 0}

/* Tables */
.table-wrap{overflow-x:auto;margin:1.5rem 0}
table{width:100%;border-collapse:collapse}
th,td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--borde);font-size:.95rem;vertical-align:top}
th{background:var(--acento);color:var(--primario);font-weight:700;font-size:.9rem;text-transform:uppercase;letter-spacing:.03em}
.refrigerantes tbody tr:nth-child(-n+3){background:#FFF4ED}
.refrigerantes tbody tr:nth-child(-n+3) td:first-child{color:var(--urgencia);font-weight:700}
.honorarios th{background:var(--primario);color:#fff}

/* Pasos */
.pasos{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;margin:2rem 0}
.paso{background:var(--fondo);padding:1.75rem;border-radius:10px;position:relative}
.paso-num{display:inline-block;background:var(--primario);color:#fff;width:2.2rem;height:2.2rem;border-radius:50%;text-align:center;line-height:2.2rem;font-weight:700;margin-bottom:.75rem}
.paso h3{margin-top:0;color:var(--primario)}

/* FAQ */
.faq{margin:1.5rem 0}
.faq details{border-bottom:1px solid var(--borde);padding:1rem 0}
.faq summary{cursor:pointer;font-weight:700;color:var(--primario);font-size:1.05rem;padding:.25rem 0}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:'›';display:inline-block;color:var(--secundario);margin-right:.5rem;transition:transform .2s;font-size:1.3rem;vertical-align:middle}
.faq details[open] summary::before{transform:rotate(90deg)}
.faq details p{margin:.75rem 0 0;color:#444}

/* CTA Final */
.cta-final{background:var(--primario);color:#fff;text-align:center}
.cta-final h2{color:#fff}
.cta-final p{color:#cbd5e1;max-width:60ch;margin:0 auto 1.5rem}
.cta-final .btn-primary{background:#fff;color:var(--primario)}
.cta-final .btn-primary:hover{background:var(--acento)}

/* Form */
form.contact{display:flex;flex-direction:column;gap:1rem;max-width:560px;margin:1.5rem 0}
form.contact label{display:flex;flex-direction:column;font-weight:600;font-size:.9rem;gap:.35rem;color:var(--primario)}
form.contact input,form.contact select,form.contact textarea{padding:.7rem .85rem;border:1px solid #d1d5db;border-radius:6px;font:inherit;font-weight:normal;color:var(--texto);background:#fff}
form.contact input:focus,form.contact select:focus,form.contact textarea:focus{outline:2px solid var(--secundario);outline-offset:1px;border-color:var(--secundario)}
form.contact textarea{resize:vertical;min-height:120px}
form.contact label.rgpd{flex-direction:row;align-items:flex-start;gap:.5rem;font-weight:normal;font-size:.88rem;color:var(--texto)}
form.contact label.rgpd input{margin-top:.2rem}
form.contact button{background:var(--urgencia);color:#fff;border:0;padding:1rem 1.75rem;font:inherit;font-weight:700;border-radius:6px;cursor:pointer;align-self:flex-start;font-size:1rem;transition:transform .12s,box-shadow .12s}
form.contact button:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(208,74,2,.3)}
.microcopy{font-size:.88rem;color:var(--gris);max-width:60ch}

/* Two columns layout (contacto) */
.two-col{display:grid;grid-template-columns:1.5fr 1fr;gap:3rem;align-items:start}
.contact-info{background:var(--acento);padding:2rem;border-radius:10px}
.contact-info h2{margin-top:0;font-size:1.3rem}
.contact-info ul{list-style:none;padding:0}
.contact-info li{margin:.5rem 0}

/* Sectores */
.sectores{font-size:1.05rem;color:#555}

/* Breadcrumb */
.breadcrumb{font-size:.85rem;color:var(--gris);margin:1.5rem 0 0;padding:1rem 0 0}
.breadcrumb a{color:var(--secundario);text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}

/* Legal pages */
.legal h2{font-size:1.3rem;margin-top:2rem}
.legal p,.legal li{color:#444;font-size:.97rem}

/* Footer */
footer.site-footer{background:var(--primario);color:#fff;padding:3.5rem 0 1.5rem;margin-top:4rem}
footer .container{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:2.5rem}
footer h4{color:#fff;margin:0 0 1rem;font-size:1rem;font-weight:700}
footer p,footer a{color:#cbd5e1}
footer a{text-decoration:none;display:block;padding:.3rem 0;font-size:.92rem}
footer a:hover{color:#fff}
.footer-brand{font-weight:800;font-size:1.4rem;color:#fff;display:block;margin-bottom:.75rem}
.footer-brand span{color:var(--urgencia)}
.footer-bottom{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:1.5rem;margin-top:1.5rem;font-size:.85rem;color:#94a3b8;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.footer-bottom a{display:inline;color:#94a3b8;padding:0}

/* Preview banner */
.preview-banner{background:#fef3c7;border-bottom:1px solid #fcd34d;padding:.65rem 0;text-align:center;font-size:.85rem;color:#78350f}

/* Responsive */
@media (max-width:900px){
  footer .container{grid-template-columns:1fr 1fr}
  .two-col{grid-template-columns:1fr}
}
@media (max-width:680px){
  h1{font-size:2rem}
  h2{font-size:1.5rem}
  .site-header .container{flex-direction:column;align-items:flex-start;gap:.75rem}
  nav.primary ul{gap:1rem;font-size:.9rem}
  footer .container{grid-template-columns:1fr}
  .hero{padding:2.5rem 0}
}