:root{
  --bg:#ecebe8; --surface:#ffffff; --line:#d3d1cc; --text:#1e1f21; --muted:#5b5d61;
  --steel:#4b4e53; --wood:#8c4f21; --wood-soft:#b87a45;
  --hero-bg:#1c1d1f; --hero-text:#eceae6; --hero-muted:#a4a6aa; --hero-steel:#b8bbbf;
  --wa:#1f8f4e;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#1c1d1f; --surface:#25262a; --line:#3a3c40; --text:#eceae6; --muted:#a4a6aa;
    --steel:#b8bbbf; --wood:#c98a52; --wood-soft:#a8662f;
  }
}
:root[data-theme="dark"]{
  --bg:#1c1d1f; --surface:#25262a; --line:#3a3c40; --text:#eceae6; --muted:#a4a6aa;
  --steel:#b8bbbf; --wood:#c98a52; --wood-soft:#a8662f;
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 64px);scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:1.0625rem;line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--wood-soft);outline-offset:3px}
.wrap{max-width:1180px;margin:0 auto;padding:0 clamp(1rem,4vw,2.5rem)}
.x{font-stretch:125%;letter-spacing:.01em}

/* barra superior */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--hero-bg);color:var(--hero-text);border-bottom:1px solid #2e3034}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:1rem}
.brand{font-weight:800;font-stretch:125%;font-size:1.15rem;text-decoration:none;letter-spacing:.06em}
.brand span{color:var(--wood-soft)}
.top nav{display:flex;gap:1.5rem;align-items:center}
.top nav a{text-decoration:none;color:var(--hero-muted);font-size:.95rem}
.top nav a:hover{color:var(--hero-text)}
.top nav .call{color:var(--hero-text);font-weight:600;border:1px solid #55585d;padding:.4rem .85rem;border-radius:3px}
@media (max-width:720px){.top nav a:not(.call){display:none}}

/* portada */
.hero{background:var(--hero-bg);color:var(--hero-text);padding:clamp(2rem,6vw,4.5rem) 0 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(1.5rem,4vw,4rem);align-items:center}
.hero-logo{width:100%;max-width:460px;height:auto;aspect-ratio:1;object-fit:contain;border-radius:2px}
.hero h1{font-stretch:125%;font-weight:700;font-size:clamp(1.9rem,4.4vw,3.3rem);line-height:1.08;margin:0 0 1.1rem;letter-spacing:-.005em}
.hero p.lead{color:var(--hero-muted);font-size:1.15rem;max-width:34em;margin:0 0 1.8rem}
.btns{display:flex;flex-wrap:wrap;gap:.75rem}
.btn{display:inline-flex;align-items:center;gap:.55rem;text-decoration:none;font-weight:650;padding:.85rem 1.3rem;border-radius:3px;font-size:1rem;line-height:1}
.btn svg{width:18px;height:18px;flex:none}
.btn-wood{background:linear-gradient(180deg,#b3743f,#8f5226);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.18)}
.btn-wood:hover{background:linear-gradient(180deg,#bf7f48,#9a5a2b)}
.btn-steel{background:transparent;color:var(--hero-text);border:1px solid #5a5d62}
.btn-steel:hover{border-color:var(--hero-steel)}
.feature{margin-top:clamp(2.5rem,6vw,4.5rem);position:relative}
.feature img{width:100%;height:clamp(240px,46vw,560px);object-fit:cover;object-position:center 60%}
.feature figcaption{position:absolute;left:0;bottom:0;background:var(--hero-bg);color:var(--hero-muted);font-size:.9rem;padding:.6rem 1rem .6rem clamp(1rem,4vw,2.5rem)}
@media (max-width:820px){
  .hero-grid{grid-template-columns:1fr}
  .hero-logo{max-width:300px;margin:0 auto}
  .hero-text{text-align:left}
}

/* secciones */
section.block{padding:clamp(3rem,8vw,6rem) 0}
.head{display:flex;justify-content:space-between;align-items:end;gap:1.5rem;flex-wrap:wrap;margin-bottom:2.2rem}
h2{font-stretch:125%;font-weight:700;font-size:clamp(1.6rem,3.2vw,2.35rem);line-height:1.1;margin:0}
.head p{margin:0;color:var(--muted);max-width:36em}

/* servicios */
.services{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line)}
.svc{padding:1.6rem 1.4rem 1.6rem 0;border-right:1px solid var(--line)}
.svc + .svc{padding-left:1.4rem}
.svc:last-child{border-right:0}
.mat{height:10px;width:56px;margin-bottom:1.1rem;border-radius:1px}
.mat.steel{background:linear-gradient(90deg,#8f9296,#d4d6d8 45%,#7c7f83)}
.mat.wood{background:repeating-linear-gradient(90deg,#7a4520 0 3px,#a8662f 3px 7px,#8e5427 7px 9px)}
.mat.mix{background:linear-gradient(90deg,#9a9da1 0 50%,#a8662f 50% 100%)}
.mat.volt{background:linear-gradient(90deg,#9a9da1,#c7c9cb);position:relative}
.svc h3{font-stretch:112%;font-size:1.15rem;margin:0 0 .6rem}
.svc ul{margin:0;padding:0;list-style:none;color:var(--muted)}
.svc li{padding:.28rem 0}
@media (max-width:900px){
  .services{grid-template-columns:repeat(2,minmax(0,1fr))}
  .svc{border-bottom:1px solid var(--line)}
  .svc:nth-child(2n){border-right:0}
  .svc:nth-child(odd){padding-left:0}
  .svc:nth-child(even){padding-left:1.4rem}
}
@media (max-width:540px){
  .services{grid-template-columns:1fr}
  .svc,.svc:nth-child(even){border-right:0;padding-left:0}
}

/* trabajos */
.works-sec{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.filters{display:flex;flex-wrap:wrap;gap:.5rem}
.filters button{font:inherit;font-size:.93rem;background:transparent;color:var(--text);border:1px solid var(--line);padding:.45rem .9rem;border-radius:999px;cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--text);color:var(--bg);border-color:var(--text)}
.works{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.6rem 1.4rem}
.work{all:unset;cursor:pointer;display:flex;flex-direction:column;gap:.7rem}
.work:focus-visible{outline:3px solid var(--wood-soft);outline-offset:4px}
.work .ph{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--line);border-radius:2px}
.work .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.work:hover .ph img{transform:scale(1.03)}
@media (prefers-reduced-motion:reduce){.work .ph img{transition:none}}
.work .count{position:absolute;right:.6rem;bottom:.6rem;background:rgba(20,21,23,.78);color:#eee;font-size:.8rem;padding:.25rem .55rem;border-radius:2px}
.work h3{margin:0;font-size:1.08rem;font-weight:650;line-height:1.25}
.work p{margin:0;color:var(--muted);font-size:.95rem}
.work .cat{color:var(--wood);font-size:.85rem;font-weight:600}
.work[hidden]{display:none}

/* visor */
dialog.viewer{border:0;padding:0;background:#141517;color:#eee;width:min(1100px,100vw);max-width:100vw;max-height:100dvh;height:min(860px,100dvh);border-radius:3px}
dialog.viewer::backdrop{background:rgba(10,10,11,.86)}
.v-in{display:grid;grid-template-rows:auto 1fr auto;height:100%}
.v-top{display:flex;justify-content:space-between;align-items:start;gap:1rem;padding:1rem 1.1rem .6rem}
.v-top h3{margin:0;font-size:1.1rem;font-stretch:112%}
.v-top p{margin:.25rem 0 0;color:#a4a6aa;font-size:.92rem}
.v-close{all:unset;cursor:pointer;width:40px;height:40px;display:grid;place-items:center;border:1px solid #3c3e42;border-radius:3px;flex:none}
.v-close:focus-visible,.v-nav:focus-visible,.thumbs button:focus-visible{outline:3px solid var(--wood-soft);outline-offset:2px}
.v-stage{position:relative;min-height:0;display:flex;align-items:center;justify-content:center;padding:0 3.4rem}
.v-stage img{max-height:100%;max-width:100%;object-fit:contain}
.v-nav{all:unset;cursor:pointer;position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;display:grid;place-items:center;background:rgba(40,41,44,.85);border-radius:3px}
.v-prev{left:.5rem}.v-next{right:.5rem}
.v-foot{display:flex;align-items:center;gap:.8rem;padding:.8rem 1.1rem 1rem}
.v-pos{color:#a4a6aa;font-size:.85rem;flex:none;min-width:3.5em}
.thumbs{display:flex;gap:.4rem;overflow-x:auto;padding-bottom:.2rem}
.thumbs button{all:unset;cursor:pointer;flex:none;width:64px;height:48px;border-radius:2px;overflow:hidden;opacity:.55;border:2px solid transparent}
.thumbs button[aria-current="true"]{opacity:1;border-color:#b3743f}
.thumbs img{width:100%;height:100%;object-fit:cover}
@media (max-width:600px){.v-stage{padding:0 .5rem}.v-nav{background:rgba(40,41,44,.7)}}

/* contacto */
.contact{background:var(--hero-bg);color:var(--hero-text)}
.contact .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2rem;align-items:end}
.contact h2{color:var(--hero-text)}
.contact p{color:var(--hero-muted);max-width:32em;margin:.8rem 0 0}
.phone{display:block;text-decoration:none;font-stretch:125%;font-weight:800;font-size:clamp(2.2rem,7vw,5.2rem);line-height:1;letter-spacing:.01em;margin:2.2rem 0 1.6rem;
  background:linear-gradient(180deg,#e2e4e6 0%,#9ea1a5 55%,#c9cbce 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.phone:hover{filter:brightness(1.1)}
@media (max-width:760px){.contact .wrap{grid-template-columns:1fr}}
footer{background:var(--hero-bg);color:#7d8084;font-size:.88rem;border-top:1px solid #2e3034;padding:1.4rem 0 calc(1.4rem + 64px)}
footer .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
@media (min-width:721px){footer{padding-bottom:1.4rem}}

/* barra fija móvil */
.mbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:none;grid-template-columns:1fr 1fr;gap:1px;background:#2e3034;padding-bottom:env(safe-area-inset-bottom,0px)}
.mbar a{display:flex;align-items:center;justify-content:center;gap:.5rem;height:56px;text-decoration:none;font-weight:650;color:#fff;background:var(--hero-bg)}
.mbar a.wa{background:var(--wa)}
.mbar svg{width:18px;height:18px}
@media (max-width:720px){.mbar{display:grid}}
footer .admin-link{color:#7d8084;text-decoration:none}footer .admin-link:hover{color:#c9cbce;text-decoration:underline}
.top nav a.admin{display:inline-flex;align-items:center;gap:.4rem}
.top nav a.admin svg{width:16px;height:16px;flex:none}
@media (max-width:720px){
  .top nav a.admin{display:inline-flex;width:40px;height:40px;justify-content:center;border:1px solid #55585d;border-radius:3px;color:var(--hero-text)}
  .top nav a.admin span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
  .top nav{gap:.6rem}
}