:root{--ink:#102038;--navy:#081629;--blue:#0b3b66;--yellow:#f4c430;--paper:#f7f8fa;--white:#fff;--muted:#5c6877;--line:#dde3ea;--radius:18px;--shadow:0 18px 45px rgba(8,22,41,.13)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Helvetica Neue",sans-serif;color:var(--ink);background:var(--white);line-height:1.6}img{max-width:100%;display:block}a{color:inherit}.container{width:min(1160px,calc(100% - 38px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:999}
.site-header{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);z-index:50;border-bottom:1px solid var(--line)}.nav{min-height:84px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;text-decoration:none;margin-right:auto}.brand img{width:98px;height:72px;object-fit:contain}.nav-links{display:flex;align-items:center;gap:22px}.nav-links a{text-decoration:none;font-weight:700;font-size:.94rem}.nav-links a:hover,.nav-links a[aria-current="page"]{color:#8c6800}.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 20px;border-radius:999px;background:var(--yellow);color:#191919;text-decoration:none;font-weight:800;border:2px solid var(--yellow);transition:.2s}.button:hover{transform:translateY(-2px);box-shadow:0 9px 25px rgba(244,196,48,.3)}.button.secondary{background:transparent;color:var(--white);border-color:rgba(255,255,255,.65)}.button.dark{background:var(--navy);border-color:var(--navy);color:#fff}.menu-toggle{display:none;border:0;background:transparent;font-size:1.65rem;padding:8px}
.hero{background:linear-gradient(90deg,rgba(8,22,41,.96) 0%,rgba(8,22,41,.86) 53%,rgba(8,22,41,.25) 100%),url('../img/instalacion-electrica.webp') center/cover;min-height:670px;color:#fff;display:flex;align-items:center}.hero-copy{max-width:720px;padding:85px 0}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:.78rem;color:#8c6800}.hero .eyebrow,.page-hero .eyebrow,.dark .eyebrow{color:#f6cf52}.hero h1,.page-hero h1{font-size:clamp(2.6rem,6vw,5.2rem);line-height:1.03;margin:.3em 0}.hero p{font-size:1.2rem;max-width:650px;color:#e4e9ef}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0}.trust-row{display:flex;gap:25px;flex-wrap:wrap;font-size:.92rem;color:#dbe2ea}.trust-row span:before{content:"✓";color:var(--yellow);font-weight:900;margin-right:8px}
.section{padding:88px 0}.section.soft{background:var(--paper)}.section.dark{background:var(--navy);color:#fff}.section-heading{max-width:760px;margin-bottom:42px}.section-heading h2{font-size:clamp(2rem,4vw,3.2rem);line-height:1.12;margin:.25em 0}.section-heading p{font-size:1.08rem;color:var(--muted)}.dark .section-heading p{color:#c7d0dc}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 10px 25px rgba(8,22,41,.06)}.card .icon{font-size:1.65rem}.card h3{font-size:1.28rem;margin:.6em 0}.card p{color:var(--muted)}.text-link{font-weight:800;color:#6f5200}.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.split img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}.check-list{padding:0;list-style:none}.check-list li{padding:9px 0 9px 29px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:#a37900;font-weight:900}.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.step{counter-increment:step;border-top:3px solid var(--yellow);padding-top:18px}.step:before{content:"0" counter(step);color:#c79a00;font-size:.82rem;font-weight:900}.step h3{margin:.4em 0}.areas{display:flex;gap:10px;flex-wrap:wrap}.areas span{border:1px solid #314156;border-radius:999px;padding:8px 14px;color:#dbe3ed}.cta{padding:45px;border-radius:26px;background:linear-gradient(135deg,var(--blue),var(--navy));color:#fff;display:flex;align-items:center;gap:30px;justify-content:space-between}.cta h2{margin:0;font-size:clamp(1.8rem,3vw,2.8rem)}.cta p{margin:.4em 0;color:#dbe3ed}.cta .button{flex:none}
.page-hero{padding:105px 0 80px;background:linear-gradient(115deg,var(--navy),var(--blue));color:#fff}.page-hero h1{font-size:clamp(2.4rem,5vw,4.4rem);max-width:900px}.page-hero p{max-width:760px;font-size:1.15rem;color:#dce5ef}.breadcrumbs{font-size:.88rem;color:#c7d1dc}.breadcrumbs a{color:#fff}.service-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}.service-intro img{border-radius:var(--radius);aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}.service-intro h2{font-size:clamp(2rem,4vw,3rem);line-height:1.15}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.feature{background:#fff;border:1px solid var(--line);border-left:4px solid var(--yellow);padding:20px;border-radius:10px}.feature h3{margin:0 0 6px}.feature p{margin:0;color:var(--muted)}.faq{max-width:850px}.faq details{border-bottom:1px solid var(--line);padding:18px 0}.faq summary{font-weight:800;cursor:pointer}.faq p{color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px}.contact-card{background:var(--navy);color:#fff;border-radius:var(--radius);padding:32px}.contact-card a{color:#fff}.contact-item{padding:16px 0;border-bottom:1px solid #344155}.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-weight:800}.field input,.field select,.field textarea{width:100%;padding:14px;border:1px solid #bfc8d3;border-radius:10px;font:inherit;background:#fff}.field textarea{min-height:145px;resize:vertical}.consent{grid-column:1/-1;font-size:.9rem}.hp{position:absolute;left:-9999px}.notice{padding:15px;border-radius:10px;background:#e7f6ea;color:#205b2b;margin-bottom:20px}.notice.error{background:#fdeaea;color:#8b2020}
.site-footer{background:#050e1b;color:#c9d2dd;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.site-footer h3{color:#fff}.site-footer a{color:#dce4ed;text-decoration:none}.site-footer ul{padding:0;list-style:none}.site-footer li{margin:8px 0}.legal{border-top:1px solid #273345;margin-top:32px;padding-top:20px;font-size:.86rem}.floating-wa{position:fixed;right:18px;bottom:18px;background:#25d366;color:#082315;border-radius:999px;padding:13px 18px;text-decoration:none;font-weight:900;box-shadow:0 10px 30px rgba(0,0,0,.22);z-index:40}
@media(max-width:900px){.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:84px;left:0;right:0;background:#fff;padding:20px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.nav-links.open{display:flex}.nav-cta{display:none}.cards{grid-template-columns:repeat(2,1fr)}.split,.service-intro,.contact-grid{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.hero{min-height:610px}}
@media(max-width:600px){.container{width:min(100% - 26px,1160px)}.hero-copy{padding:60px 0}.hero h1{font-size:2.65rem}.section{padding:65px 0}.cards,.feature-grid,.steps,.footer-grid,.contact-form{grid-template-columns:1fr}.field.full,.consent{grid-column:auto}.cta{padding:30px;align-items:flex-start;flex-direction:column}.floating-wa{font-size:.86rem}.brand img{width:64px}.nav{min-height:70px}.nav-links{top:70px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

/* Fotografías de servicios */
.card{overflow:hidden;display:flex;flex-direction:column}.card .service-image{width:calc(100% + 56px);max-width:none;height:auto;aspect-ratio:8/5;object-fit:cover;margin:-28px -28px 20px}.card .text-link{margin-top:auto;padding-top:8px}.service-intro img{width:100%}

.empalmes-gallery{display:grid;grid-template-columns:1fr 1fr;gap:26px}.empalmes-gallery figure{margin:0;background:#fff;padding:14px;border-radius:18px}.empalmes-gallery img{width:100%;height:430px;object-fit:contain;background:#eef1f5;border-radius:12px}.empalmes-gallery figcaption{padding:12px 4px;color:#5c6877}@media(max-width:600px){.empalmes-gallery{grid-template-columns:1fr}.empalmes-gallery img{height:auto;max-height:520px}}
.seguridad-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.seguridad-gallery figure{margin:0;background:#fff;padding:12px;border-radius:18px;box-shadow:0 10px 25px rgba(8,22,41,.07)}.seguridad-gallery img{width:100%;height:430px;object-fit:cover;border-radius:12px}.seguridad-gallery figcaption{padding:12px 4px 4px;color:#5c6877}@media(max-width:800px){.seguridad-gallery{grid-template-columns:1fr}.seguridad-gallery img{height:auto;max-height:620px;object-fit:contain;background:#eef1f5}}
.public-lighting-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.public-lighting-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 10px 25px rgba(8,22,41,.06)}.public-lighting-card span{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border-radius:50%;background:var(--yellow);color:#191919;font-weight:900}.public-lighting-card h3{font-size:1.2rem;margin:16px 0 7px}.public-lighting-card p{color:var(--muted);margin:0}@media(max-width:900px){.public-lighting-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.public-lighting-grid{grid-template-columns:1fr}}

/* Centro de guías y contenidos SEO */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.guide-card{display:flex;flex-direction:column;padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 10px 25px rgba(8,22,41,.06)}.guide-card h2,.guide-card h3{font-size:1.35rem;line-height:1.3;margin:14px 0 10px}.guide-card p{color:var(--muted)}.guide-card .text-link{margin-top:auto;padding-top:10px}.guide-tag{display:inline-flex;align-self:flex-start;padding:6px 11px;border-radius:999px;background:#fff4c9;color:#6f5200;font-size:.78rem;font-weight:900;letter-spacing:.03em}.section-link{margin:32px 0 0}.article-hero{padding:82px 0 64px;background:linear-gradient(115deg,var(--navy),var(--blue));color:#fff}.article-narrow{max-width:920px}.article-hero h1{font-size:clamp(2.35rem,5vw,4.4rem);line-height:1.06;margin:.35em 0}.article-lead{font-size:1.18rem;color:#dce5ef;max-width:820px}.article-meta{font-size:.88rem;color:#b9c7d6}.article-layout{display:grid;grid-template-columns:240px minmax(0,760px);gap:58px;align-items:start;padding-top:72px;padding-bottom:88px}.article-aside{position:sticky;top:110px;display:flex;flex-direction:column;gap:10px;padding:20px;border-left:3px solid var(--yellow)}.article-aside a{color:var(--muted);text-decoration:none;font-size:.92rem}.article-aside a:hover{color:var(--ink)}.article-body{font-size:1.06rem}.article-body h2{font-size:clamp(1.65rem,3vw,2.3rem);line-height:1.2;margin:2em 0 .55em}.article-body h3{font-size:1.25rem;margin:1.5em 0 .35em}.article-body p,.article-body li{color:#344255}.article-body li{margin:.42em 0}.article-note{margin:32px 0;padding:22px;border-left:4px solid var(--yellow);background:#fff8dd;border-radius:0 12px 12px 0}.article-cta{margin-top:50px;padding:34px;border-radius:22px;background:var(--navy);color:#fff}.article-cta h2{margin:0 0 8px;color:#fff}.article-cta p{color:#dbe3ed}.comparison-table{overflow-x:auto;border:1px solid var(--line);border-radius:14px}.comparison-table table{width:100%;border-collapse:collapse;min-width:620px}.comparison-table th,.comparison-table td{text-align:left;padding:14px;border-bottom:1px solid var(--line)}.comparison-table th{background:var(--navy);color:#fff}.comparison-table tr:last-child td{border-bottom:0}
@media(max-width:900px){.guide-grid{grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr;gap:25px}.article-aside{position:static;display:none}}
@media(max-width:600px){.guide-grid{grid-template-columns:1fr}.article-hero{padding:60px 0 48px}.article-layout{padding-top:50px;padding-bottom:65px}.article-cta{padding:26px}.guide-card{padding:24px}}