/* serbrilanz.com — rojo y gris del logo, aire de obra. */
@font-face{font-family:"Barlow";src:url(fonts/barlow-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Barlow";src:url(fonts/barlow-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Barlow";src:url(fonts/barlow-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Barlow";src:url(fonts/barlow-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url(fonts/barlowcondensed-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url(fonts/barlowcondensed-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url(fonts/barlowcondensed-800.woff2) format("woff2");font-weight:800;font-display:swap}
:root{--red:#a80100;--red-d:#7f0100;--red-b:#e0362b;--grey:#666665;--ink:#17191d;--dark:#121417;--dark2:#1c1f24;--paper:#f5f4f1;--line:#e3e1dc;--wa:#1faa59;
  --disp:"Barlow Condensed","Arial Narrow",sans-serif;--txt:"Barlow",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--txt);font-size:17px;line-height:1.55;color:var(--ink);background:#fff;overflow-x:hidden}
a{color:var(--red)}
img{max-width:100%;display:block}
svg{display:block}
.in{max-width:1160px;margin:0 auto;padding:0 20px}
.center{text-align:center}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;padding:.8rem 1.25rem;border-radius:12px;font-weight:700;font-size:1rem;text-decoration:none;border:2px solid transparent;transition:transform .15s,background .15s,box-shadow .15s;white-space:nowrap}
.btn svg{width:20px;height:20px;flex:0 0 20px}
.btn:hover{transform:translateY(-1px)}
.btn.red{background:var(--red);color:#fff}.btn.red:hover{background:var(--red-d);box-shadow:0 8px 20px -8px rgba(168,1,0,.7)}
.btn.wa{background:var(--wa);color:#fff}.btn.wa:hover{background:#178a48}
.btn.white{background:#fff;color:var(--red)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}.btn.ghost:hover{border-color:var(--red);color:var(--red)}
.btn.big{padding:1rem 1.5rem;font-size:1.08rem;border-radius:14px}
.btn.sm{padding:.55rem .95rem;font-size:.95rem}

/* Cabecera */
.top{position:sticky;top:0;z-index:30;background:rgba(18,20,23,.96);border-bottom:1px solid rgba(255,255,255,.07)}
.top .in{display:flex;align-items:center;gap:1.2rem;height:68px}
.brand{display:flex;align-items:center;gap:.65rem;color:#fff;text-decoration:none}
.brand img{width:44px;height:44px}
.brand b{display:block;font-family:var(--disp);font-weight:800;font-size:1.45rem;letter-spacing:.04em;line-height:1}
.brand small{display:block;color:#a9adb4;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
.links{margin-left:auto;display:flex;gap:1.6rem}
.links a{color:#d9dbde;text-decoration:none;font-weight:600}
.links a:hover{color:#fff}
@media(max-width:820px){.links{display:none}.top .btn{margin-left:auto}.top .btn span{display:none}.top .btn{padding:.6rem}}

/* Portada */
.hero{position:relative;background:radial-gradient(1200px 500px at 80% -10%,#2b2f36 0,transparent 60%),var(--dark);color:#fff;overflow:hidden;padding:72px 0 150px}
.mountains{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:170px}
.hero-in{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;margin:0 0 1rem;padding:.3rem .75rem;border:1px solid rgba(255,255,255,.18);border-radius:99px;font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:#cfd2d6}
.hero h1{font-family:var(--disp);font-weight:800;text-transform:uppercase;font-size:clamp(2.6rem,6.2vw,4.9rem);line-height:.95;letter-spacing:.01em;margin:0 0 1.1rem}
.hero .lead{font-size:1.18rem;color:#d3d6da;max-width:36ch;margin:0 0 1.6rem}
.cta{display:flex;gap:.8rem;flex-wrap:wrap}
.chips{list-style:none;padding:0;margin:1.8rem 0 0;display:flex;flex-wrap:wrap;gap:.5rem}
.chips li{font-size:.86rem;font-weight:600;padding:.35rem .75rem;border-radius:99px;background:rgba(255,255,255,.07);color:#e2e4e7}
.hero-badge{justify-self:center}
.hero-badge img{width:min(340px,100%);height:auto;filter:drop-shadow(0 24px 40px rgba(0,0,0,.55))}
@media(max-width:820px){.hero{padding:44px 0 130px}.hero-in{grid-template-columns:1fr}.hero-badge{order:-1}.hero-badge img{width:150px}.mountains{height:110px}}

/* Secciones */
.sec{padding:84px 0}
.sec.alt{background:var(--paper)}
.kicker{margin:0 0 .3rem;color:var(--red);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:.85rem}
.kicker.light{color:#ffd0cc}
.sec h2,.contact h2,.band h2{font-family:var(--disp);font-weight:800;text-transform:uppercase;font-size:clamp(2rem,4.4vw,3.1rem);line-height:1;margin:0 0 2rem}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid{grid-template-columns:1fr}.sec{padding:60px 0}}
.srv{background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.5rem;display:flex;flex-direction:column;gap:.5rem;transition:transform .2s,box-shadow .2s,border-color .2s}
.srv:hover{transform:translateY(-3px);box-shadow:0 18px 40px -24px rgba(0,0,0,.35);border-color:#d6d3cc}
.srv .ico{width:56px;height:56px;border-radius:14px;background:var(--red);color:#fff;display:grid;place-items:center;margin-bottom:.4rem}
.srv .ico svg{width:32px;height:32px}
.srv h3{font-family:var(--disp);font-weight:700;font-size:1.55rem;line-height:1.05;margin:0;text-transform:uppercase;letter-spacing:.01em}
.srv p{margin:0;color:#4a4e55;flex:1}
.srv a{font-weight:700;text-decoration:none;margin-top:.4rem}
.srv-cta{background:var(--dark2);color:#fff;border-color:var(--dark2)}
.srv-cta p{color:#c9ccd1}
.srv-cta .btn{align-self:flex-start;color:#fff}

/* Banda DeCA */
.band{background:linear-gradient(100deg,var(--red-d),var(--red));color:#fff;padding:44px 0}
.band-in{display:flex;gap:28px;align-items:center}
.band .qr{flex:0 0 84px;height:84px;border-radius:18px;background:rgba(255,255,255,.14);display:grid;place-items:center}
.band .qr svg{width:48px;height:48px}
.band h2{margin:0 0 .4rem;font-size:clamp(1.6rem,3.2vw,2.2rem)}
.band p{margin:0;max-width:70ch;color:#ffe3e0}
@media(max-width:600px){.band-in{flex-direction:column;align-items:flex-start}}

/* Trabajos */
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-bottom:1.6rem}
.gal a{display:block;border-radius:14px;overflow:hidden;aspect-ratio:1/1;background:#ddd}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.gal a:hover img{transform:scale(1.04)}
.gal .btn svg{width:20px}
.ig-card{display:flex;align-items:center;gap:1.1rem;background:#fff;border:1px solid var(--line);border-radius:20px;padding:1.4rem 1.6rem;text-decoration:none;color:var(--ink);max-width:720px}
.ig-card:hover{border-color:var(--red)}
.ig-ico{flex:0 0 64px;height:64px;border-radius:18px;display:grid;place-items:center;color:#fff;background:linear-gradient(45deg,#f9a03f,#d62976 45%,#962fbf 75%,#4f5bd5)}
.ig-ico svg{width:34px;height:34px}
.ig-card b{font-size:1.15rem}
.ig-card u{color:var(--red);text-decoration:none;font-weight:700}
.ig-card .go{margin-left:auto;font-size:2rem;color:var(--red);font-weight:700}

/* Contacto */
.contact{background:var(--dark);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.contact::after{content:"";position:absolute;right:-120px;bottom:-160px;width:520px;height:520px;background:var(--red);opacity:.18;transform:rotate(45deg);border-radius:40px}
.contact-in{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center}
.contact h2{margin-bottom:.8rem}
.contact p{color:#cfd2d6;font-size:1.1rem;margin:0}
.contact .cta{justify-content:flex-end}
@media(max-width:820px){.contact-in{grid-template-columns:1fr}.contact .cta{justify-content:flex-start}}

/* Pie */
.foot{background:#0c0d10;color:#9aa0a8;padding:40px 0 110px;font-size:.95rem}
.foot .in{display:grid;gap:18px}
.f-brand{display:flex;gap:.8rem;align-items:center;color:#fff}
.f-brand span{color:#9aa0a8}
.f-links{display:flex;flex-wrap:wrap;gap:1.2rem}
.f-links a{display:inline-flex;align-items:center;gap:.45rem;color:#e6e7e9;text-decoration:none;font-weight:600}
.f-links svg{width:18px;height:18px}
.f-legal a{color:#c6c9ce}
@media(min-width:821px){.foot{padding-bottom:40px}}

/* Barra fija de contacto (móvil) */
.mbar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(12,13,16,.94);border-top:1px solid rgba(255,255,255,.08)}
.mbar a{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem;border-radius:12px;background:var(--red);color:#fff;font-weight:700;text-decoration:none}
.mbar a.wa{background:var(--wa)}
.mbar svg{width:20px;height:20px}
@media(min-width:821px){.mbar{display:none}}

/* Aviso legal */
.legal{padding:50px 20px 70px;max-width:820px}
.legal h1{font-family:var(--disp);font-weight:800;text-transform:uppercase;font-size:2.6rem;line-height:1;margin:0 0 1.2rem}
.legal h2{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:1.4rem;margin:2rem 0 .5rem}
.legal .idc{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:1rem 1.2rem}
@media(max-width:600px){.hero .chips{display:none}.hero .cta .btn{flex:1 1 100%}.hero{padding-bottom:120px}}
.contact .mail{margin-top:1rem}.contact .mail a{display:inline-flex;align-items:center;gap:.5rem;color:#fff;font-weight:600;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.3)}.contact .mail svg{width:20px;height:20px}
.gal a{position:relative}
.gal a.vid::after{content:"";position:absolute;inset:auto auto 10px 10px;width:34px;height:34px;border-radius:50%;background:rgba(0,0,0,.55) url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 viewBox=%270 0 24 24%27%3E%3Cpath fill=%27white%27 d=%27M8 5v14l11-7z%27/%3E%3C/svg%3E") center/18px no-repeat}