:root{
  --amarillo:#FFC20E; --amarillo-osc:#E0A800; --negro:#000; --blanco:#fff;
  --bg:#fff; --surface:#EFEFED; --ink:#141414; --muted:#555; --line:#D6D6D2; --card:#fff;
  --display:"Rubik","Arial Black",Arial,sans-serif;
  --body:"Noto Sans","Segoe UI",Roboto,Arial,sans-serif;
  --max:1200px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){--bg:#161616;--surface:#1F1F1F;--ink:#F2F2F0;--muted:#B5B5B0;--line:#343434;--card:#1B1B1B}
}
:root[data-theme="dark"]{--bg:#161616;--surface:#1F1F1F;--ink:#F2F2F0;--muted:#B5B5B0;--line:#343434;--card:#1B1B1B}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--amarillo);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:var(--display);line-height:1.08;letter-spacing:-.01em}
h2{font-style:italic;font-weight:800;font-size:clamp(30px,4vw,46px)}
h3{font-weight:700;font-size:22px}

/* Etiqueta amarilla inclinada, tomada de la carpeta */
.tag{display:inline-block;position:relative;padding:4px 22px 6px;margin-bottom:22px;color:#000;z-index:0}
.tag::before{content:"";position:absolute;inset:0;background:var(--amarillo);transform:skewX(-14deg);z-index:-1;border-radius:3px}

/* Encabezado */
header{position:sticky;top:0;z-index:50;background:#000;color:#fff;border-bottom:1px solid #222}
.nav{display:flex;align-items:center;gap:28px;height:74px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand .hex{height:40px;width:auto}.brand .word{height:22px;width:auto}
.nav ul{display:flex;gap:26px;list-style:none;margin-left:auto}
.nav ul a{text-decoration:none;font-size:15px;font-weight:500;color:#d9d9d9}
.nav ul a:hover{color:var(--amarillo)}
.lang{display:flex;border:1px solid #444;border-radius:4px;overflow:hidden}
.lang button{background:none;border:0;color:#bbb;font:700 13px var(--body);padding:6px 10px;cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--amarillo);color:#000}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:700 15px var(--body);text-decoration:none;padding:13px 22px;border-radius:4px;border:2px solid transparent;cursor:pointer;transition:background .15s}
.btn-y{background:var(--amarillo);color:#000}.btn-y:hover{background:var(--amarillo-osc)}
.btn-o{border-color:#fff;color:#fff;background:transparent}.btn-o:hover{background:#fff;color:#000}
.nav .btn{padding:10px 16px;font-size:14px}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:26px;cursor:pointer;margin-left:auto}

/* Portada */
.hero{position:relative;background:#000;color:#fff;overflow:hidden}
.hero-photo{position:absolute;inset:0 0 0 46%;background:url(../img/gen.jpg) center 30%/cover;filter:grayscale(1) contrast(1.1);clip-path:polygon(18% 0,100% 0,100% 100%,0 100%)}
.hero-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.55),rgba(0,0,0,.05) 60%)}
.slash{position:absolute;top:0;bottom:0;left:46%;width:90px;background:var(--amarillo);clip-path:polygon(78% 0,100% 0,22% 100%,0 100%);transform-origin:top;animation:sweep .9s cubic-bezier(.2,.7,.2,1) both}
@keyframes sweep{from{clip-path:polygon(78% 0,100% 0,100% 0,78% 0)}}
.hero .wrap{position:relative;min-height:640px;display:flex;flex-direction:column;justify-content:center;padding-top:60px;padding-bottom:60px}
.hero-text{max-width:530px}
.hero h1{font-style:italic;font-weight:800;font-size:clamp(36px,4.6vw,60px);margin-bottom:24px}
.hero p.lead{font-size:19px;color:#d4d4d4;max-width:480px;margin-bottom:34px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:14px}
.hero .rif{margin-top:48px;font-size:14px;color:#9a9a9a;display:flex;gap:22px;flex-wrap:wrap}

/* Capacidad */
.cap{background:var(--amarillo);color:#000;padding:64px 0}
.cap h2{font-size:clamp(24px,2.6vw,30px);margin-bottom:34px;max-width:620px}
.cap-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.cap-item{border-top:3px solid #000;padding:18px 20px 0 0}
.cap-item b{display:block;font-family:var(--display);font-style:italic;font-weight:800;font-size:clamp(38px,4.2vw,54px);line-height:1}
.cap-item b small{font-size:.45em;font-style:normal;font-weight:700;margin-left:4px}
.cap-item span{display:block;font-size:15px;line-height:1.45;margin-top:10px;max-width:190px}

/* Empresa */
section{scroll-margin-top:74px}
.pad{padding:100px 0}
.empresa-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:start}
.empresa p{color:var(--muted);margin-bottom:18px;max-width:62ch}
.empresa p strong{color:var(--ink)}
.mv{background:var(--surface);padding:34px;border-left:6px solid var(--amarillo)}
.mv h3{font-style:italic;font-size:19px;margin-bottom:8px}
.mv p{font-size:15.5px;margin-bottom:24px}
.mv p:last-child{margin-bottom:0}

/* Servicios */
.servicios{background:var(--surface)}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:50px}
.sec-head p{color:var(--muted);max-width:440px}
.serv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.serv{background:var(--card);display:grid;grid-template-columns:42% 1fr;min-height:320px}
.serv .ph{background-size:cover;background-position:center}
.serv .tx{padding:30px 30px 28px}
.serv h3{margin-bottom:6px}
.serv .sub{font-size:14px;color:var(--muted);margin-bottom:16px}
.serv ul{list-style:none;font-size:15px}
.serv li{padding:7px 0 7px 18px;border-top:1px solid var(--line);position:relative}
.serv li::before{content:"";position:absolute;left:0;top:15px;width:8px;height:8px;background:var(--amarillo);transform:skewX(-14deg)}

/* Sectores */
.sectores{background:#000;color:#fff;padding:70px 0}
.sectores h2{font-size:clamp(22px,2.4vw,28px);color:#bdbdbd;font-style:normal;font-weight:500;margin-bottom:22px}
.sect-list{font-family:var(--display);font-style:italic;font-weight:800;font-size:clamp(26px,3.6vw,46px);line-height:1.35}
.sect-list span{white-space:nowrap}
.sect-list i{color:var(--amarillo);font-style:italic;padding:0 .35em}

/* Proyectos */
.caso{display:grid;grid-template-columns:1.1fr .9fr;gap:0;margin-bottom:34px;background:var(--surface)}
.caso:nth-child(even){grid-template-columns:.9fr 1.1fr}
.caso:nth-child(even) .caso-ph{order:2}
.caso-ph{min-height:380px;background-size:cover;background-position:center}
.caso-tx{padding:44px 46px}
.sector{display:inline-block;font-size:13px;font-weight:700;color:#000;background:var(--amarillo);padding:3px 10px;border-radius:3px;margin-bottom:16px}
.caso h3{font-size:clamp(22px,2.3vw,28px);font-style:italic;font-weight:800;margin-bottom:22px}
.specs{display:grid;grid-template-columns:auto 1fr;gap:0;font-size:15px}
.specs dt{font-family:var(--display);font-weight:700;font-size:22px;padding:10px 18px 10px 0;border-top:1px solid var(--line);white-space:nowrap}
.specs dd{padding:13px 0;border-top:1px solid var(--line);color:var(--muted)}
.resultado{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:baseline;margin-top:22px;padding:14px 16px;background:var(--card);border-left:6px solid var(--amarillo);font-size:15px}
.resultado b{font-family:var(--display);font-style:italic;font-weight:800}
.nota{font-size:13px;color:var(--muted);margin-top:8px}

/* Calidad */
.calidad{background:var(--surface)}
.cal-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.pasos{list-style:none;counter-reset:p}
.pasos li{counter-increment:p;display:grid;grid-template-columns:54px 1fr;gap:16px;padding:18px 0;border-top:1px solid var(--line)}
.pasos li::before{content:counter(p,decimal-leading-zero);font-family:var(--display);font-style:italic;font-weight:800;font-size:26px;color:var(--amarillo-osc)}
.pasos b{display:block;font-size:17px}
.pasos span{font-size:15px;color:var(--muted)}
.comp{display:grid;gap:18px}
.comp div{background:var(--card);padding:24px 26px;border-left:6px solid #000}
:root[data-theme="dark"] .comp div{border-left-color:var(--amarillo)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .comp div{border-left-color:var(--amarillo)}}
.comp h3{font-size:18px;margin-bottom:6px}
.comp p{font-size:15px;color:var(--muted)}
.registros{margin-top:44px;padding-top:30px;border-top:3px solid var(--ink)}
.registros p{font-size:15px;color:var(--muted);margin-bottom:14px}
.reg-list{display:flex;flex-wrap:wrap;gap:10px}
.reg-list span{font:700 15px var(--display);border:2px solid var(--ink);padding:7px 14px;border-radius:3px}

/* Contacto */
.contacto{background:#000;color:#fff}
.contacto h2{color:#fff}
.ct-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}
.ct-info p{color:#bdbdbd;margin-bottom:30px;max-width:40ch}
.ct-info dl{display:grid;gap:18px}
.ct-info dt{font-size:13px;color:#8d8d8d}
.ct-info dd{font-size:17px;font-weight:500}
.ct-info dd a{text-decoration:none}.ct-info dd a:hover{color:var(--amarillo)}
form{background:#161616;padding:38px;border-top:6px solid var(--amarillo)}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.full{grid-column:1/-1}
label{display:block;font-size:14px;color:#cfcfcf;margin-bottom:6px}
input,select,textarea{width:100%;background:#000;border:1px solid #3a3a3a;color:#fff;font:16px var(--body);padding:12px 14px;border-radius:3px}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--amarillo)}
.form-msg{display:none;margin-top:16px;padding:14px;background:var(--amarillo);color:#000;font-weight:700;border-radius:3px}
form .btn{margin-top:22px}

footer{background:#000;color:#8d8d8d;border-top:1px solid #262626;padding:30px 0;font-size:14px}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
footer .brand .hex{height:30px}footer .brand .word{height:16px}


@media (max-width:1020px){
  .hero-photo{inset:0 0 0 52%}.slash{left:52%}
  .nav ul,.nav .btn{display:none}
  .menu-btn{display:block}
  .nav.open ul{display:flex;flex-direction:column;position:absolute;top:74px;left:0;right:0;background:#000;padding:20px 28px;gap:16px;border-bottom:3px solid var(--amarillo)}
  .lang{margin-left:0}
  .cap-grid{grid-template-columns:repeat(3,1fr);row-gap:30px}
  .empresa-grid,.cal-grid,.ct-grid{grid-template-columns:1fr;gap:44px}
  .serv-grid{grid-template-columns:1fr}
  .caso,.caso:nth-child(even){grid-template-columns:1fr}
  .caso:nth-child(even) .caso-ph{order:0}
  .caso-ph{min-height:280px}
}
@media (max-width:700px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .pad{padding:70px 0}
  .hero-photo{inset:0;clip-path:none;opacity:.45}
  .slash{left:auto;right:-20px;width:70px;opacity:.9}
  .hero .wrap{min-height:560px}
  .cap-grid{grid-template-columns:1fr 1fr}
  .serv{grid-template-columns:1fr}
  .serv .ph{min-height:200px}
  .sec-head{flex-direction:column;align-items:start;gap:14px}
  .caso-tx{padding:30px 24px}
  .fgrid{grid-template-columns:1fr}
  form{padding:26px 20px}
  .brand .word{display:none}
}
@media (prefers-reduced-motion:reduce){.slash{animation:none}html{scroll-behavior:auto}}

.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-msg.err{background:#fff;color:#000;border-left:6px solid #d62828}
form .btn[disabled]{opacity:.6;cursor:wait}