/* CLIMATSERVIS BCN — estilos compartidos. Colores tomados del logotipo. */
:root{
  --navy:#0f2742; --navy-2:#183a5e; --ink:#0a1d31;
  --blue:#2a6ea6; --blue-d:#1f5a8a; --sky:#e9f1f8; --sky-2:#d6e6f3;
  --bg:#f4f6f9; --surface:#fff; --line:#e0e7ee;
  --text:#14273c; --muted:#56687b;
  --wa:#168a45; --wa-d:#11733a;
  --r:12px; --r-lg:16px;
  --shadow:0 1px 2px rgba(15,39,66,.06),0 10px 28px -14px rgba(15,39,66,.22);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --header:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.6;color:var(--text);background:var(--surface);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-d)}
a:hover{color:var(--navy)}
h1,h2,h3{color:var(--navy);line-height:1.18;margin:0 0 .5em;letter-spacing:-.015em;text-wrap:balance}
h1{font-size:clamp(2rem,4.6vw,3.2rem);font-weight:800;letter-spacing:-.025em}
h2{font-size:clamp(1.6rem,3.2vw,2.3rem);font-weight:800}
h3{font-size:1.14rem;font-weight:700}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px}
.skip:focus{left:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Secciones */
.sec{padding:80px 0}
.sec.alt{background:var(--bg)}
.sec-head{max-width:720px;margin-bottom:40px}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor;border-radius:2px}
.lead{font-size:1.1rem;color:var(--muted);max-width:62ch}
@media (max-width:640px){.sec{padding:56px 0}.sec-head{margin-bottom:28px}}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 22px;border-radius:10px;font:inherit;font-weight:700;font-size:1rem;line-height:1.2;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background-color .15s,border-color .15s,color .15s}
.btn svg{width:20px;height:20px;flex:none}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:var(--wa-d);color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2);color:#fff}
.btn-line{background:#fff;border-color:var(--line);color:var(--navy)}
.btn-line:hover{border-color:var(--blue);color:var(--navy)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-sm{min-height:40px;padding:8px 16px;font-size:.94rem}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;text-decoration:none;color:var(--blue-d)}
.link-arrow::after{content:"→";transition:transform .15s}
.link-arrow:hover::after{transform:translateX(3px)}

/* Cabecera */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
@supports (backdrop-filter:blur(8px)){.hdr{background:rgba(255,255,255,.88);backdrop-filter:saturate(1.6) blur(10px)}}
.nav{display:flex;align-items:center;gap:24px;height:var(--header)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);flex:none}
.brand img{width:40px;height:40px}
.brand b{display:block;font-size:1rem;font-weight:800;letter-spacing:.03em;line-height:1.05}
.brand small{display:block;font-size:.66rem;font-weight:700;letter-spacing:.2em;color:var(--blue)}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{padding:8px 12px;border-radius:8px;text-decoration:none;font-weight:600;font-size:.95rem;color:var(--text)}
.nav-links a:hover{background:var(--bg);color:var(--navy)}
.nav-links a[aria-current="page"]{color:var(--blue-d)}
.lang{display:flex;padding:3px;border:1px solid var(--line);border-radius:10px;background:#fff;flex:none}
.lang a{min-width:34px;padding:5px 8px;border-radius:7px;text-align:center;text-decoration:none;font-weight:700;font-size:.8rem;letter-spacing:.04em;color:var(--muted)}
.lang a:hover{color:var(--navy);background:var(--bg)}
.lang a[aria-current="true"]{background:var(--navy);color:#fff}
.mnav{display:none}
@media (max-width:1040px){
  .nav{gap:12px}
  .nav-links,.nav .hdr-cta{display:none}
  .lang{margin-left:auto}
  .mnav{display:block}
  .mnav summary{list-style:none;display:grid;place-items:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);cursor:pointer;color:var(--navy)}
  .mnav summary::-webkit-details-marker{display:none}
  .mnav summary svg{width:22px;height:22px}
  .mnav .i-close{display:none}
  .mnav[open] .i-open{display:none}
  .mnav[open] .i-close{display:block}
  .mnav-panel{position:absolute;left:0;right:0;top:var(--header);background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 30px -18px rgba(15,39,66,.35);padding:8px 16px 20px;max-height:calc(100vh - var(--header));overflow:auto}
  .mnav-panel a{display:flex;align-items:center;min-height:48px;padding:0 4px;border-bottom:1px solid var(--line);text-decoration:none;font-weight:600;color:var(--text)}
  .mnav-panel a.sub{padding-left:20px;font-weight:500;color:var(--muted);font-size:.95rem}
  .mnav-panel .btn{margin-top:16px;border:0;justify-content:center;color:#fff}
}
@media (max-width:400px){.brand b{font-size:.88rem}.brand img{width:34px;height:34px}.lang a{min-width:30px;padding:5px 6px}}

/* Hero */
.hero{padding:56px 0 72px;background:var(--surface)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero p.lead{font-size:1.15rem;margin-bottom:28px}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.facts{list-style:none;padding:0;margin:32px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}
.facts li{display:flex;gap:10px;align-items:flex-start;font-size:.95rem;font-weight:600;color:var(--text)}
.facts svg{width:20px;height:20px;flex:none;margin-top:2px;color:var(--blue)}
.hero-photo{position:relative;margin:0}
.hero-photo img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-lg);background:var(--sky)}
.hero-photo figcaption{position:absolute;left:16px;bottom:16px;background:#fff;color:var(--navy);font-weight:700;font-size:.88rem;padding:8px 14px;border-radius:8px;box-shadow:var(--shadow)}
@media (max-width:900px){
  .hero{padding:32px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-photo img{aspect-ratio:4/3;object-position:50% 35%}
}
@media (max-width:520px){.facts{grid-template-columns:1fr}.cta .btn{width:100%}}

/* Tarjetas de servicios */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:980px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.cards{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:var(--sky-2);box-shadow:var(--shadow)}
.ic{width:48px;height:48px;border-radius:12px;background:var(--sky);color:var(--navy);display:grid;place-items:center;margin-bottom:18px;flex:none}
.ic svg{width:26px;height:26px}
.card p{color:var(--muted);flex:1}
.card-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.wa-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:.92rem;text-decoration:none;color:var(--wa)}
.wa-link:hover{color:var(--wa-d)}
.wa-link svg{width:18px;height:18px}

/* Ofertas */
.offers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:980px){.offers{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}}
.offer{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.offer-img{background:#fff;border-bottom:1px solid var(--line);padding:12px}
.offer-img img{width:100%;aspect-ratio:16/10;object-fit:contain}
.offer-body{display:flex;flex-direction:column;gap:14px;padding:24px;flex:1}
.offer-brand{font-size:.76rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue)}
.offer h3{font-size:1.35rem;margin:2px 0 0}
.offer-type{color:var(--muted);font-size:.95rem;margin:0}
.offer-specs{margin:0;display:grid;grid-template-columns:auto 1fr;gap:4px 12px;font-size:.94rem}
.offer-specs dt{color:var(--muted)}
.offer-specs dd{margin:0;font-weight:600}
.price{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px;padding:14px 16px;border-radius:10px;background:var(--sky)}
.price b{font-size:2.2rem;line-height:1;font-weight:800;color:var(--navy);letter-spacing:-.02em}
.price span{font-size:.9rem;color:var(--navy-2);font-weight:600}
.offer h4{margin:0;font-size:.9rem;color:var(--navy)}
.checks{list-style:none;padding:0;margin:0 0 1em;display:grid;gap:8px}
.checks li{position:relative;padding-left:28px}
.checks li::before{content:"";position:absolute;left:0;top:.28em;width:18px;height:18px;border-radius:50%;background:var(--sky) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231f5a8a' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/12px no-repeat}
.offer .checks{font-size:.95rem;margin:0}
.offer .btn{margin-top:auto}
.notice{display:grid;grid-template-columns:auto 1fr;gap:16px;margin-top:28px;padding:22px 24px;border-radius:var(--r-lg);background:var(--bg);border:1px solid var(--line)}
.notice svg{width:24px;height:24px;color:var(--blue);margin-top:2px}
.notice h3{font-size:1rem;margin-bottom:6px}
.notice p{color:var(--muted);margin:0 0 8px}
.notice p:last-child{margin:0}

/* Instalaciones realizadas */
.filters{display:none;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.js .filters{display:flex}
.filters button{min-height:40px;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font:inherit;font-size:.92rem;font-weight:600;color:var(--text);cursor:pointer}
.filters button:hover{border-color:var(--blue)}
.filters button[aria-pressed="true"]{background:var(--navy);border-color:var(--navy);color:#fff}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;list-style:none;padding:0;margin:0}
@media (max-width:980px){.gallery{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.gallery{grid-template-columns:repeat(2,1fr);gap:10px}}
.gallery li[hidden]{display:none}
.gallery figure{margin:0}
.gallery a{display:block;border-radius:var(--r);overflow:hidden;background:var(--sky);cursor:zoom-in}
.gallery img{width:100%;aspect-ratio:1;object-fit:cover;transition:transform .3s}
.gallery a:hover img{transform:scale(1.03)}
.gallery figcaption{font-size:.84rem;line-height:1.35;color:var(--muted);padding:8px 2px 0}
.work-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:32px;padding:22px 24px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--line)}
.work-cta p{margin:0;font-weight:700;color:var(--navy);font-size:1.1rem}

/* Por qué / pasos */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:32px 28px}
@media (max-width:980px){.why{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.why{grid-template-columns:1fr;gap:24px}}
.why h3{margin-bottom:6px}
.why p{color:var(--muted);margin:0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;list-style:none;padding:0;margin:0;counter-reset:s}
@media (max-width:820px){.steps{grid-template-columns:1fr}}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--navy);color:#fff;font-weight:800;margin-bottom:16px}
.steps h3{margin-bottom:6px}
.steps p{margin:0;color:var(--muted)}

/* FAQ */
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;gap:16px;padding:20px 0;cursor:pointer;list-style:none;font-weight:700;color:var(--navy);font-size:1.04rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:22px;height:22px;margin-top:2px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232a6ea6' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E") center/20px no-repeat;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 20px;color:var(--muted);max-width:70ch}

/* Contacto */
.contact{background:var(--navy);color:#dbe7f2}
.contact h2{color:#fff}
.contact .eyebrow{color:#8ec1e8}
.contact .lead{color:#c3d6e7}
.cgrid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media (max-width:860px){.cgrid{grid-template-columns:1fr;gap:28px}}
.cfacts{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:10px}
.cfacts li{display:flex;gap:10px;align-items:flex-start}
.cfacts svg{width:20px;height:20px;flex:none;margin-top:3px;color:#8ec1e8}
.clist{display:grid;gap:12px}
.clist a{display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:var(--r);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);text-decoration:none;color:#fff;transition:background-color .15s}
.clist a:hover{background:rgba(255,255,255,.13);color:#fff}
.clist a.primary{background:var(--wa);border-color:var(--wa)}
.clist a.primary:hover{background:var(--wa-d)}
.clist svg{width:24px;height:24px;flex:none}
.clist small{display:block;font-size:.76rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;opacity:.75}
.clist b{font-weight:700;word-break:break-word}

/* Página de servicio */
.page-hero{background:var(--bg);padding:40px 0 48px;border-bottom:1px solid var(--line)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0 0 20px;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:6px;color:#9aa9b8}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--navy);text-decoration:underline}
.page-hero h1{font-size:clamp(1.9rem,4vw,2.8rem);max-width:22ch}
.page-hero .lead{margin-bottom:24px}
.page-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:56px;align-items:start}
@media (max-width:960px){.page-grid{grid-template-columns:1fr;gap:32px}}
.prose h2{font-size:clamp(1.4rem,2.6vw,1.8rem);margin-top:48px}
.prose>section:first-child h2{margin-top:0}
.prose p,.prose li{color:#33475b}
.nums{padding-left:1.3em;display:grid;gap:10px}
.types{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:640px){.types{grid-template-columns:1fr}}
.type{padding:20px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.type h3{font-size:1.02rem;margin-bottom:6px}
.type p{margin:0;font-size:.97rem}
.page-gallery{grid-template-columns:repeat(3,1fr)}
@media (max-width:640px){.page-gallery{grid-template-columns:repeat(2,1fr)}}
.aside{position:sticky;top:calc(var(--header) + 20px);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow)}
.aside h2{font-size:1.3rem;margin-bottom:8px}
.aside p{color:var(--muted);font-size:.97rem}
.aside .btn{width:100%;margin-top:10px}
.aside .cfacts{margin-top:20px;font-size:.92rem;color:var(--text)}
.aside .cfacts svg{color:var(--blue)}
@media (max-width:960px){.aside{position:static}}
.band{background:var(--navy);color:#c3d6e7;border-radius:var(--r-lg);padding:40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.band h2{color:#fff;font-size:clamp(1.4rem,2.6vw,1.9rem);margin-bottom:6px}
.band p{margin:0}
.band .cta{flex:none}
@media (max-width:640px){.band{padding:28px 22px}}

/* Pie */
.ftr{background:var(--ink);color:#9fb3c6;padding:56px 0 28px;font-size:.94rem}
.ftr a{color:#d5e3ef;text-decoration:none}
.ftr a:hover{color:#fff;text-decoration:underline}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
@media (max-width:860px){.fgrid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.fgrid{grid-template-columns:1fr}}
.ftr h2{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
.ftr ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.ftr .brand{color:#fff;margin-bottom:14px}
.ftr .brand small{color:#8ec1e8}
.fbottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:.86rem}

/* WhatsApp flotante (escritorio) y barra de acción (móvil) */
.fab{position:fixed;right:22px;bottom:22px;z-index:60;width:60px;height:60px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 12px 28px -8px rgba(0,0,0,.4);transition:transform .15s}
.fab:hover{transform:scale(1.06);color:#fff}
.fab svg{width:32px;height:32px}
.mbar{display:none}
@media (min-width:961px){.has-aside .fab{display:none}}
@media (max-width:760px){
  .fab{display:none}
  .mbar{display:grid;grid-template-columns:1fr 1.4fr;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px -16px rgba(15,39,66,.35)}
  .mbar .btn{min-height:50px;padding:10px 12px}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
}

/* Visor de fotos */
dialog.lb{border:0;padding:0;margin:0;background:transparent;width:100vw;height:100vh;max-width:none;max-height:none}
dialog.lb::backdrop{background:rgba(5,14,26,.92)}
.lb-in{display:grid;place-items:center;width:100%;height:100%;padding:56px 12px}
.lb-in figure{margin:0;text-align:center}
.lb-in img{max-height:calc(100vh - 140px);max-width:min(96vw,1200px);border-radius:8px;object-fit:contain;margin:0 auto}
.lb-in figcaption{color:#d5e3ef;margin-top:12px;font-size:.95rem}
.lb-btn{position:fixed;border:0;background:rgba(255,255,255,.14);color:#fff;width:48px;height:48px;border-radius:50%;cursor:pointer;display:grid;place-items:center}
.lb-btn:hover{background:rgba(255,255,255,.28)}
.lb-btn svg{width:24px;height:24px}
.lb-x{top:14px;right:14px}.lb-p{left:12px;top:50%;transform:translateY(-50%)}.lb-n{right:12px;top:50%;transform:translateY(-50%)}

/* Vídeos (verticales 9:16). Sin reproducción automática: se cargan al pulsar play */
.sub-h{font-size:1.15rem;margin:0 0 16px;color:var(--navy)}
.vrow{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,270px));gap:24px;margin:0 0 40px}
.prose .vrow{grid-template-columns:repeat(auto-fill,minmax(200px,240px));margin:24px 0 8px}
.vcard{margin:0}
.vbox{position:relative;aspect-ratio:9/16;border-radius:var(--r);overflow:hidden;background:var(--navy-2)}
.vbox video{display:block;width:100%;height:100%;object-fit:cover;background:var(--navy-2)}
.vcard figcaption{padding-top:12px}
.vcard h3{font-size:1.02rem;margin:0 0 4px}
.vcard p{margin:0;font-size:.92rem;color:var(--muted)}
.vmeta{margin-top:6px!important;font-size:.82rem!important;font-weight:600;color:var(--blue-d)!important}
.vfeature{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:center;margin-top:28px;padding:24px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg)}
.vfeature h3{font-size:1.3rem;margin-bottom:8px}
.vfeature p{color:var(--muted)}
.vfeature .btn{margin-top:16px}
@media (max-width:700px){.vfeature{grid-template-columns:1fr;gap:20px;padding:18px}.vfeature .vcard{width:min(280px,100%);margin-inline:auto}}
@media (max-width:640px){
  .vrow,.prose .vrow{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;margin-inline:-16px;padding:0 16px 10px;scrollbar-width:thin}
  .vrow .vcard{flex:0 0 72%;scroll-snap-align:start}
}

/* 404 */
.nf{padding:96px 0;text-align:center}
.nf .cta{justify-content:center;margin-top:24px}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}