/* MaxsMinera S.A. — hoja de estilos principal */
:root{
  --tinta:#1B211E;
  --grafito:#3F4A45;
  --humo:#66726C;
  --concreto:#EAE6DE;
  --papel:#F7F5F1;
  --linea:#D3CDC2;
  --naranja:#C9541A;
  --naranja-osc:#A8430F;
  --ambar:#EF9F51;
  --oliva:#4E6A3A;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;background:var(--papel);color:var(--tinta);
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--ambar);outline-offset:2px}
.env{max-width:var(--max);margin:0 auto;padding:0 24px}
.saltar{position:absolute;left:-999px;top:8px;background:var(--tinta);color:#fff;padding:10px 16px;z-index:100}
.saltar:focus{left:8px}

/* tipografía */
h1,h2,h3{font-family:"Barlow Condensed","Arial Narrow",sans-serif;font-weight:700;letter-spacing:.01em;line-height:1.04;text-transform:uppercase;margin:0}
h1{font-size:clamp(2.5rem,6.4vw,5rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem)}
h3{font-size:1.28rem;line-height:1.15}
p{margin:0 0 1em}
.rotulo{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--humo);margin:0}
.rotulo b{color:var(--naranja);font-weight:500}

/* botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;font-weight:700;letter-spacing:.06em;font-size:1.05rem;padding:11px 22px;text-decoration:none;border:2px solid var(--naranja);background:var(--naranja);color:#fff;cursor:pointer;transition:background .18s,color .18s,border-color .18s}
.btn:hover{background:var(--naranja-osc);border-color:var(--naranja-osc)}
.btn.claro{background:transparent;color:#fff;border-color:rgba(255,255,255,.75)}
.btn.claro:hover{background:#fff;color:var(--tinta);border-color:#fff}
.btn.linea{background:transparent;color:var(--tinta);border-color:var(--tinta)}
.btn.linea:hover{background:var(--tinta);color:#fff}

/* encabezado */
.barra{position:sticky;top:0;z-index:50;background:rgba(247,245,241,.96);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--linea)}
.barra .env{display:flex;align-items:center;gap:24px;height:74px}
.barra .logo img{height:56px;width:auto}
.menu{margin-left:auto;display:flex;align-items:center;gap:26px}
.menu a{font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;font-weight:600;font-size:1.02rem;letter-spacing:.06em;text-decoration:none;color:var(--grafito);padding:4px 0;border-bottom:2px solid transparent}
.menu a:hover,.menu a.activo{color:var(--tinta);border-bottom-color:var(--naranja)}
.menu .btn{padding:9px 16px;color:#fff;border-bottom:2px solid var(--naranja)}
.menu .btn:hover{color:#fff}
.hamb{display:none;margin-left:auto;background:none;border:1px solid var(--linea);padding:8px 12px;font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;font-weight:700;letter-spacing:.08em;cursor:pointer;color:var(--tinta);font-size:1rem}

/* portada */
.portada{position:relative;background:var(--tinta);color:#fff;overflow:hidden}
.portada .foto{position:absolute;inset:0}
.portada .foto img{width:100%;height:100%;object-fit:cover;opacity:.45;filter:grayscale(.2) contrast(1.05)}
.portada::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(27,33,30,.93) 0%,rgba(27,33,30,.74) 48%,rgba(27,33,30,.35) 100%)}
.portada .env{position:relative;z-index:2}
.portada .contenido{padding:100px 0 56px}
.portada .rotulo{color:rgba(255,255,255,.75)}
.portada h1{margin:18px 0 0;max-width:15ch}
.portada h1 em{font-style:normal;color:var(--ambar)}
.regla{width:96px;height:5px;background:var(--naranja);margin:26px 0 24px}
.portada .lead{max-width:56ch;color:rgba(255,255,255,.88);font-size:1.12rem}
.acciones{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cifras{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.18)}
.cifras ul{list-style:none;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr)}
.cifras li{padding:24px 18px 26px 0}
.cifras strong{display:block;font-family:"Barlow Condensed",sans-serif;font-size:2.6rem;line-height:1}
.cifras span{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.65)}

/* secciones */
.seccion{padding:88px 0}
.seccion.claro{background:var(--concreto)}
.encabezado{max-width:62ch;margin-bottom:44px}
.encabezado h2{margin:12px 0 16px}
.encabezado p{color:var(--grafito)}

/* empresa */
.duo{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.duo figure{margin:0}
.duo figure img{aspect-ratio:4/3;object-fit:cover;width:100%}
.duo figcaption{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.06em;color:var(--humo);padding-top:10px;border-top:1px solid var(--linea);margin-top:10px}
.tarjetas-mv{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:34px}
.mv{background:#fff;border-top:4px solid var(--oliva);padding:22px 22px 8px}
.mv h3{font-size:1.05rem;letter-spacing:.08em;margin-bottom:10px}
.mv p{font-size:.96rem;color:var(--grafito)}

/* servicios */
.servicios{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;list-style:none;margin:0;padding:0}
.servicios li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--linea)}
.servicios .n{font-family:"IBM Plex Mono",monospace;font-size:.74rem;color:var(--naranja);padding-top:5px;min-width:30px}
.servicios strong{display:block;font-weight:600}
.servicios small{display:block;color:var(--humo);font-size:.9rem;line-height:1.5}
.areas{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 0;padding:0;list-style:none}
.areas li{font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;font-weight:600;letter-spacing:.05em;font-size:1rem;border:1px solid var(--grafito);padding:7px 15px}

/* experiencia */
.filtros{display:flex;flex-wrap:wrap;gap:8px;margin:-16px 0 28px}
.filtros button{font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;background:transparent;border:1px solid var(--linea);color:var(--grafito);padding:8px 14px;cursor:pointer}
.filtros button[aria-pressed="true"]{background:var(--tinta);border-color:var(--tinta);color:#fff}
.ficha{display:grid;grid-template-columns:210px 1fr 320px;gap:34px;padding:34px 0;border-top:1px solid var(--linea);align-items:start}
.ficha:last-of-type{border-bottom:1px solid var(--linea)}
.ficha[hidden]{display:none}
.ficha .id{font-family:"IBM Plex Mono",monospace;font-size:.78rem;line-height:1.6;color:var(--grafito);margin:0}
.ficha .id .num{display:block;font-family:"Barlow Condensed",sans-serif;font-size:2.2rem;line-height:1;color:var(--naranja);margin-bottom:8px}
.ficha .id dt{color:var(--humo);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;margin-top:10px}
.ficha .id dd{margin:0}
.ficha h3{margin-bottom:10px;max-width:34ch}
.ficha .cuerpo p{color:var(--grafito);font-size:.97rem;margin-bottom:12px}
.ficha .meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-family:"IBM Plex Mono",monospace;font-size:.74rem;color:var(--humo)}
.ficha .meta b{color:var(--tinta);font-weight:500}
.ficha .galeria-btn{position:relative;display:block;padding:0;border:0;background:none;cursor:zoom-in;width:100%}
.ficha .galeria-btn img{aspect-ratio:16/11;object-fit:cover;width:100%}
.ficha .galeria-btn span{position:absolute;right:0;bottom:0;background:rgba(27,33,30,.86);color:#fff;font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;padding:7px 11px}

/* visor de fotos */
.visor{border:0;padding:0;background:transparent;max-width:min(1100px,94vw);max-height:92vh;width:100%}
.visor::backdrop{background:rgba(10,13,12,.92)}
.visor figure{margin:0;display:flex;flex-direction:column;align-items:center}
.visor img{max-height:78vh;width:auto;margin:0 auto}
.visor figcaption{color:#fff;font-family:"IBM Plex Mono",monospace;font-size:.78rem;margin-top:12px;text-align:center}
.visor .ctrl{display:flex;justify-content:center;gap:10px;margin-top:14px}
.visor .ctrl button{background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff;font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;font-weight:700;letter-spacing:.06em;font-size:1rem;padding:8px 16px;cursor:pointer}
.visor .ctrl button:hover{background:#fff;color:var(--tinta)}

/* compromiso */
.compromiso{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.pilar{border-top:3px solid var(--tinta);padding-top:16px}
.pilar h3{font-size:1.02rem;letter-spacing:.06em;margin-bottom:8px}
.pilar p{font-size:.94rem;color:var(--grafito);margin:0}

/* franja portafolio */
.franja{background:var(--naranja);color:#fff;padding:40px 0}
.franja .env{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.franja h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
.franja p{margin:6px 0 0;color:rgba(255,255,255,.88)}
.franja .btn{background:#fff;color:var(--tinta);border-color:#fff}
.franja .btn:hover{background:var(--tinta);color:#fff;border-color:var(--tinta)}

/* contacto */
.contacto{background:var(--tinta);color:#fff}
.contacto .rotulo{color:rgba(255,255,255,.6)}
.cont-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.datos{margin:0}
.datos div{padding:18px 0;border-bottom:1px solid rgba(255,255,255,.16)}
.datos dt{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:6px}
.datos dd{margin:0;font-family:"Barlow Condensed",sans-serif;font-size:1.5rem;font-weight:600;letter-spacing:.02em;word-break:break-word}
.datos dd a{text-decoration:none;border-bottom:2px solid rgba(239,159,81,.8)}
.datos dd a:hover{color:var(--ambar)}
.datos small{display:block;font-family:"IBM Plex Sans",sans-serif;font-size:.86rem;font-weight:400;letter-spacing:0;color:rgba(255,255,255,.65);margin-top:4px}
.mapa{margin-top:24px;border:0;width:100%;height:230px;filter:grayscale(.4)}
form{display:grid;gap:14px}
label{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.7);display:block;margin-bottom:6px}
input,textarea,select{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.25);color:#fff;padding:12px 14px;font-family:inherit;font-size:1rem;border-radius:0}
select option{color:var(--tinta)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--ambar);outline-offset:1px;border-color:transparent}
textarea{min-height:120px;resize:vertical}
.fila{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:rgba(255,255,255,.78);text-transform:none;letter-spacing:0;font-family:"IBM Plex Sans",sans-serif}
.check input{width:18px;height:18px;margin-top:3px;flex:none;accent-color:var(--naranja)}
.check a{color:var(--ambar)}
.trampa{position:absolute;left:-5000px;width:1px;height:1px;overflow:hidden}
.estado{font-size:.92rem;min-height:1.4em;margin:0}
.estado.ok{color:#9fd08a}.estado.error{color:#ffb38a}

footer{background:#121715;color:rgba(255,255,255,.65);padding:34px 0;font-size:.85rem}
footer .env{display:flex;flex-wrap:wrap;gap:14px 30px;align-items:center;justify-content:space-between}
footer .mono{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase}
footer a{color:rgba(255,255,255,.8)}

.flotante{position:fixed;right:18px;bottom:18px;z-index:60;background:var(--oliva);color:#fff;text-decoration:none;font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;font-weight:700;letter-spacing:.06em;padding:13px 18px;box-shadow:0 8px 22px rgba(0,0,0,.28);display:flex;gap:8px;align-items:center}
.flotante:hover{background:#3d5430}
.flotante svg{width:20px;height:20px;fill:currentColor}

/* páginas simples (gracias, política, 404) */
.simple{min-height:70vh;padding:80px 0}
.simple .env{max-width:820px}
.simple h1{font-size:clamp(2.2rem,5vw,3.6rem);margin:12px 0 24px}
.simple h2{font-size:1.5rem;margin:34px 0 10px}
.simple p,.simple li{color:var(--grafito)}

/* animación */
.rev{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.rev.visto{opacity:1;transform:none}
.no-js .rev{opacity:1;transform:none}

@media (max-width:900px){
  .duo,.cont-grid{grid-template-columns:1fr;gap:36px}
  .servicios{grid-template-columns:1fr}
  .compromiso{grid-template-columns:1fr 1fr}
  .ficha{grid-template-columns:1fr;gap:18px}
  .ficha .id{display:flex;flex-wrap:wrap;gap:4px 14px;align-items:baseline}
  .ficha .id .num{margin:0;width:100%}
  .ficha .id dt{margin-top:0}
  .cifras ul{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  body{font-size:16px}
  .seccion{padding:62px 0}
  .menu{position:fixed;inset:74px 0 auto 0;background:var(--papel);border-bottom:1px solid var(--linea);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px;display:none}
  .menu.abierto{display:flex}
  .menu a{padding:12px 0;border-bottom:1px solid var(--linea)}
  .menu .btn{margin-top:14px}
  .hamb{display:block}
  .tarjetas-mv,.compromiso,.fila{grid-template-columns:1fr}
  .portada .contenido{padding-top:64px}
  .flotante span{display:none}
}
@media (prefers-reduced-motion:reduce){
  .rev{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}
@media print{
  .barra,.flotante,.filtros,form,.mapa{display:none}
  .portada{background:#fff;color:#000}.portada::after,.portada .foto{display:none}
}