/* MR Obras y Servicios — estética oscura industrial con dorado */
:root{
  --bg:#15130e; --card:#1d1a13; --ink:#f3efe4; --muted:#b5ab98; --line:#3a3428;
  --gold:#e0b22b; --gold-ink:#17140f; --overlay:#0d0c09;
  --fade:linear-gradient(to top,rgba(13,12,9,.92),rgba(13,12,9,.2) 55%,transparent);
  --hero-fade:linear-gradient(to top,var(--bg) 2%,rgba(13,12,9,.35) 50%,rgba(13,12,9,.6));
  --head:"Barlow Condensed","Arial Narrow",Impact,sans-serif;
  --body:"Barlow",system-ui,Arial,sans-serif;
  --r:.6rem;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:4.5rem}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.05rem/1.55 var(--body)}
img,video{display:block;max-width:100%}
a{color:inherit}
.wrap{max-width:1280px;margin:0 auto;padding:0 1.25rem}
h1,h2,h3{font-family:var(--head);font-weight:800;text-transform:uppercase;line-height:.92;margin:0}
h2{font-size:clamp(2.6rem,6vw,4.2rem);margin-bottom:2rem}
section{padding:5rem 0}
.alt{background:var(--card)}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:3rem;padding:0 1.5rem;background:var(--gold);color:var(--gold-ink);font:700 1.15rem/1 var(--head);text-transform:uppercase;letter-spacing:.04em;text-decoration:none;border:2px solid var(--gold);border-radius:.45rem;cursor:pointer;transition:filter .2s,background .2s,color .2s}
.btn:hover{filter:brightness(1.1)}
.btn.line{background:transparent;color:var(--ink);border-color:rgba(243,239,228,.75)}
.btn.line:hover{background:var(--ink);color:var(--bg)}

/* Barra fija transparente */
.bar{position:fixed;inset:0 0 auto 0;z-index:30;background:rgba(21,19,14,.7);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(58,52,40,.5)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:4rem}
.brand{display:flex;align-items:center;gap:.6rem;font:800 1.35rem/1 var(--head);text-transform:uppercase;text-decoration:none}
.brand img{width:2.3rem;height:2.3rem;border-radius:50%;border:2px solid var(--gold);object-fit:cover}
.bar nav{display:flex;gap:1.5rem;align-items:center}
.bar nav a{text-decoration:none;font-weight:500;transition:color .2s}
.bar nav a:not(.btn):hover{color:var(--gold)}
.bar nav .btn{min-height:2.4rem;padding:0 1rem;font-size:1rem}
@media(max-width:760px){.bar nav a:not(.btn){display:none}}

/* Portada: carrusel a pantalla completa con el titular encima */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.carousel{position:absolute;inset:0;background:#000}
.carousel .slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity 1.2s ease}
.carousel .slide.on{opacity:1}
.carousel .slide.on img{animation:zoom 7s ease-out forwards}
.carousel img{width:100%;height:100%;object-fit:cover}
.carousel::after{content:"";position:absolute;inset:0;background:var(--hero-fade);pointer-events:none;z-index:1}
.carousel figcaption{position:absolute;right:1.5rem;top:5.5rem;z-index:2;font:700 .85rem var(--body);letter-spacing:.12em;text-transform:uppercase;background:rgba(13,12,9,.55);padding:.35rem .8rem;border-radius:2rem;color:var(--gold)}
.carousel .arrow{position:absolute;bottom:4.5rem;z-index:3;width:3rem;height:3rem;border-radius:50%;border:1px solid rgba(224,178,43,.4);background:rgba(13,12,9,.5);color:var(--gold);font-size:2rem;line-height:1;cursor:pointer;transition:background .2s}
.carousel .arrow:hover{background:var(--gold);color:var(--gold-ink)}
.carousel .prev{right:5rem}.carousel .next{right:1.5rem}
.dots{position:absolute;right:1.5rem;bottom:2rem;z-index:3;display:flex;gap:.4rem}
.dots button{width:.65rem;height:.65rem;border-radius:1rem;border:0;padding:0;background:rgba(255,255,255,.4);cursor:pointer;transition:width .3s,background .3s}
.dots button.on{background:var(--gold);width:1.8rem}
@keyframes zoom{from{transform:scale(1)}to{transform:scale(1.08)}}

.hero-text{position:relative;z-index:2;width:100%;padding-top:8rem;padding-bottom:4.5rem}
.hero .kick{color:var(--gold);font:700 1.1rem var(--head);text-transform:uppercase;letter-spacing:.18em;margin:0 0 .8rem}
.hero h1{font-size:clamp(3rem,8vw,6.2rem);max-width:14ch;text-shadow:0 4px 30px rgba(0,0,0,.4)}
.hero-text>p:not(.kick){color:rgba(243,239,228,.85);font-size:1.2rem;max-width:36rem;margin:1.2rem 0 1.8rem}
.cta{display:flex;gap:.75rem;flex-wrap:wrap}

/* Galería mosaico */
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin:-1rem 0 2rem}
.filters button{background:none;color:var(--ink);border:1px solid var(--line);border-radius:2rem;padding:.4rem 1rem;font:600 .9rem var(--body);cursor:pointer;transition:border-color .2s}
.filters button:hover{border-color:var(--gold)}
.filters button.on{background:var(--gold);color:var(--gold-ink);border-color:var(--gold)}
.gal{columns:3 18rem;column-gap:.8rem}
.gal figure{position:relative;margin:0 0 .8rem;break-inside:avoid;border-radius:var(--r);overflow:hidden;cursor:zoom-in}
.gal figure:nth-child(3n+1) img{aspect-ratio:3/4}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s}
.gal figure:hover img{transform:scale(1.06)}
.gal figcaption{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:1rem;background:var(--fade);font:700 1.3rem/1 var(--head);text-transform:uppercase;pointer-events:none}
.gal figcaption small{color:var(--gold);font:600 .72rem var(--body);letter-spacing:.12em;margin-bottom:.3rem}

/* Videos */
/* Videos: una sola fila deslizable */
.vids{display:flex;gap:.8rem;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:.9rem;scrollbar-color:var(--gold) var(--line);scrollbar-width:thin}
.vids figure{flex:0 0 auto;margin:0;scroll-snap-align:start}
.vids video{display:block;height:22rem;width:auto;aspect-ratio:9/16;object-fit:contain;background:#000;border-radius:.9rem}
.vids figcaption{margin-top:.5rem;font-weight:600;font-size:.9rem}
@media(max-width:760px){.vids video{height:18rem}}
/* Servicios y trabajos */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(13rem,1fr));gap:.8rem}
.tile,.job{position:relative;border-radius:var(--r);overflow:hidden;background:var(--overlay)}
.tile{aspect-ratio:3/4;cursor:pointer}
.job{aspect-ratio:16/9}
.tile img,.job img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.tile:hover img{transform:scale(1.1)}
.tile .body,.job .body{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:1.1rem;background:var(--fade)}
.tile h3{font-size:1.9rem}
.tile ul{list-style:none;margin:.5rem 0 0;padding:0;font-size:.88rem;color:rgba(243,239,228,.85)}
.tile li::before{content:"✓ ";color:var(--gold)}
.jobs{display:grid;grid-template-columns:repeat(auto-fit,minmax(22rem,1fr));gap:.8rem}
.job span{color:var(--gold);font-weight:600;text-transform:uppercase;font-size:.82rem;letter-spacing:.12em}
.job b{font:800 2rem/1 var(--head);text-transform:uppercase}

/* Presupuesto */
#presupuesto .wrap{max-width:44rem}
.quote{display:grid;gap:1rem}
.quote label{font-weight:500}
.quote input,.quote select,.quote textarea{display:block;width:100%;margin-top:.35rem;padding:.75rem;border-radius:.45rem;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit}
.quote input:focus,.quote select:focus,.quote textarea:focus{outline:2px solid var(--gold);border-color:transparent}
.quote .btn{width:100%}

footer{border-top:1px solid var(--line);padding:2rem 0;text-align:center;color:var(--muted);font-size:.9rem}
.float{position:fixed;right:1.2rem;bottom:1.2rem;z-index:30;box-shadow:0 10px 30px rgba(0,0,0,.45)}

/* Visor de fotos */
dialog{border:0;padding:0;background:transparent;max-width:95vw}
dialog::backdrop{background:rgba(13,12,9,.95)}
dialog img{max-height:85vh;border-radius:var(--r)}
dialog p{text-align:center;font:700 1.4rem var(--head);text-transform:uppercase;color:var(--ink)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}