/* Construtel S.A. — hoja de estilos del sitio.
   Dirección: fondo blanco, mucho aire, tipografía clara, rojo Construtel como único acento. */
:root{
  --bg:#ffffff;
  --bg-2:#f6f6f4;
  --ink:#1f2326;
  --ink-2:#4f5559;
  --mute:#8a9095;
  --rule:#e4e5e2;
  --accent:#b8121b;
  --accent-dark:#8f0d14;
  --mark:#f2b705;
  --card:#ffffff;
  --display:"Barlow Condensed","Arial Narrow","Helvetica Neue",Arial,sans-serif;
  --body:"Barlow","Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --maxw:1140px;
  --radius:10px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{padding:0;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--display);line-height:1.02;margin:0;text-wrap:balance;letter-spacing:0}
h1{font-size:clamp(44px,6.2vw,76px);font-weight:700}
h2{font-size:clamp(34px,4.2vw,52px);font-weight:700}
h3{font-size:clamp(22px,2.2vw,26px);font-weight:600}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);display:flex;gap:12px;align-items:center}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent)}
.mono{font-family:var(--mono);font-size:13px;color:var(--ink-2)}
.num{font-variant-numeric:tabular-nums}
section{padding-block:clamp(40px,5vw,64px)}
section+section{border-top:1px solid var(--rule)}
.sec-head{display:grid;gap:12px;margin-bottom:28px;max-width:70ch}
.sec-head p{color:var(--ink-2);font-size:18px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* Encabezado */
header.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{height:43px;width:auto}
@media(max-width:480px){.brand img{height:36px}}
nav.main{display:none;gap:30px;font-size:15px;font-weight:500}
nav.main a{text-decoration:none;color:var(--ink-2);padding:6px 0;border-bottom:2px solid transparent}
nav.main a:hover,nav.main a[aria-current]{color:var(--ink);border-color:var(--accent)}
nav.main a.nav-cta{color:var(--accent);font-weight:600}
@media(min-width:860px){nav.main{display:flex}}
/* Submenú de Experiencia (escritorio) */
nav.main .has-sub{position:relative;display:flex;align-items:center;gap:4px}
nav.main .sub-btn{background:none;border:0;padding:6px 2px;cursor:pointer;color:var(--ink-2);display:grid;place-items:center}
nav.main .sub-btn::before{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .2s}
nav.main .has-sub:hover .sub-btn::before,nav.main .has-sub[data-open="1"] .sub-btn::before{transform:translateY(2px) rotate(225deg)}
nav.main .sub{display:none;position:absolute;top:100%;left:-14px;padding-top:10px;z-index:60}
nav.main .sub>a{display:block;background:#fff;border:1px solid var(--rule);border-radius:0;padding:10px 16px;min-width:250px;white-space:nowrap;font-size:15px;color:var(--ink-2);border-top:0}
nav.main .sub>a:first-child{border-top:1px solid var(--rule);border-radius:8px 8px 0 0}
nav.main .sub>a:last-child{border-radius:0 0 8px 8px;box-shadow:0 14px 30px rgba(0,0,0,.08)}
nav.main .sub>a:hover,nav.main .sub>a[aria-current]{background:var(--bg-2);color:var(--accent);border-color:var(--rule)}
nav.main .has-sub:hover .sub,nav.main .has-sub:focus-within .sub,nav.main .has-sub[data-open="1"] .sub{display:block}
/* Chips de sectores en las páginas de Experiencia */
.sectors{display:flex;flex-wrap:wrap;gap:8px;margin:-8px 0 28px}
.sectors a{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:8px 13px;border:1px solid var(--rule);border-radius:999px;color:var(--ink-2);background:#fff}
.sectors a:hover{border-color:var(--ink);color:var(--ink)}
.sectors a[aria-current]{background:var(--ink);color:#fff;border-color:var(--ink)}
.menu-btn{display:inline-flex;align-items:center;gap:8px;background:none;border:1px solid var(--rule);color:var(--ink);font:500 14px var(--body);padding:9px 14px;cursor:pointer;border-radius:6px}
@media(min-width:860px){.menu-btn{display:none}}
.drawer{display:none;border-top:1px solid var(--rule);background:var(--bg)}
.drawer[data-open="1"]{display:block}
.drawer .wrap{display:block;height:auto;padding-top:6px;padding-bottom:10px}
.drawer a{display:block;padding:14px 0;border-bottom:1px solid var(--rule);text-decoration:none;font-weight:500;font-size:16px}
.drawer a[aria-current]{color:var(--accent)}
.drawer a.sub-link{padding-left:22px;font-weight:400;font-size:15px;color:var(--ink-2)}
.drawer a.sub-link::before{content:"– ";color:var(--mute)}

/* Portada */
.hero-l{padding-block:clamp(32px,5vw,60px) clamp(32px,5vw,56px)}
.hero-grid{display:grid;gap:36px;align-items:start}
@media(min-width:900px){.hero-grid{grid-template-columns:.9fr 1.25fr;gap:52px}}
.hero-text{display:grid;gap:22px}
.hero-text h1{max-width:15ch}
.lead{font-size:clamp(17px,1.5vw,20px);color:var(--ink-2);max-width:52ch}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.facts{list-style:none;margin:8px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,max-content);gap:10px 28px;font-size:15px;color:var(--ink-2)}
@media(max-width:480px){.facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px;line-height:1.3}.facts b{display:block;margin:0 0 2px}}
.facts b{font-family:var(--display);font-size:26px;font-weight:700;color:var(--ink);margin-right:4px}
.hero-pic{margin:0;position:relative}
@media(min-width:900px){.hero-l .hero-pic,.page-head-pic .hero-pic{margin-top:44px}}
.hero-pic img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius)}
@media(min-width:900px){.hero-pic img{aspect-ratio:5/4}}
.hero-pic figcaption{position:absolute;left:12px;bottom:12px;background:rgba(255,255,255,.88);color:var(--ink-2);font-family:var(--mono);font-size:10px;letter-spacing:.02em;padding:5px 8px;border-radius:5px}
@media(max-width:639px){.hero-pic figcaption{position:static;background:none;padding:8px 2px 0;font-size:10px;color:var(--mute)}}

/* Clientes */
.clients{padding-block:28px;background:var(--bg-2);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.clients .wrap{display:flex;flex-wrap:wrap;gap:10px 28px;align-items:center}
.clients .label{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--mute)}
.clients ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 26px;font-weight:500;color:var(--ink-2);font-size:15px}

/* Servicios */
.services{display:grid;gap:18px}
@media(min-width:640px){.services{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.services{grid-template-columns:repeat(4,1fr);gap:16px}}
.service{background:var(--bg-2);border-radius:var(--radius);padding:26px 22px 28px;display:grid;gap:12px;align-content:start;text-decoration:none;color:inherit;transition:background .2s,transform .2s}
a.service:hover{background:#eeeeea;transform:translateY(-2px)}
.service h3{font-size:21px}
.service .n{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.08em}
.service p{color:var(--ink-2);font-size:15.5px}

/* Obras (tarjetas) */
.works{display:grid;gap:26px}
@media(min-width:640px){.works{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.works.cols-4{grid-template-columns:repeat(4,1fr)}.works.cols-3{grid-template-columns:repeat(3,1fr)}}
.work{display:grid;gap:12px;align-content:start;text-decoration:none;color:inherit;min-width:0}
.work .pic{aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);background:var(--bg-2);max-width:100%}
.work .pic img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.work:hover .pic img{transform:scale(1.03)}
.work .pic.empty{display:grid;place-items:center;color:var(--mute);font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
/* Galería: la foto de una obra se abre en grande; "+N fotos" indica que hay más */
.work .pic[role="button"]{cursor:zoom-in;position:relative}
.work .pic[data-count]::after{content:attr(data-count) " fotos";position:absolute;right:10px;bottom:10px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;background:rgba(31,35,38,.82);color:#fff;padding:4px 8px;border-radius:4px;pointer-events:none}
.lb{display:none;position:fixed;inset:0;z-index:100;background:rgba(20,22,24,.94);align-items:center;justify-content:center}
.lb[data-open="1"]{display:flex}
.lb figure{margin:0;display:grid;gap:12px;justify-items:center;max-width:92vw}
.lb img{max-width:92vw;max-height:80vh;width:auto;height:auto;border-radius:6px;background:#000}
.lb figcaption{color:#cfd3d6;font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-align:center}
.lb button{position:absolute;background:rgba(255,255,255,.12);border:0;color:#fff;font:400 32px/1 var(--body);width:50px;height:50px;border-radius:50%;cursor:pointer;display:grid;place-items:center}
.lb button:hover{background:rgba(255,255,255,.26)}
.lb .lb-x{top:16px;right:16px}
.lb .lb-p{left:14px;top:50%;transform:translateY(-50%)}
.lb .lb-n{right:14px;top:50%;transform:translateY(-50%)}
@media(max-width:640px){.lb img{max-height:70vh}.lb .lb-p,.lb .lb-n{top:auto;bottom:16px;transform:none}}
.work h3{font-size:22px}
.work .meta{font-family:var(--mono);font-size:12px;color:var(--mute)}
.work p{color:var(--ink-2);font-size:15px}
/* En celular el título va antes de la foto */
@media(max-width:639px){.work h3{order:1;font-size:28px}.work .meta{order:2}.work .tag{order:3}.work .pic{order:4}.work p{order:5}}
.work .tag{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--mark);background:var(--ink);padding:4px 8px;border-radius:4px;width:max-content}

/* Valores */
.values3{display:grid;gap:28px}
@media(min-width:800px){.values3{grid-template-columns:repeat(3,1fr);gap:40px}}
.value{display:grid;gap:10px;padding-top:18px;border-top:3px solid var(--accent)}
.value p{color:var(--ink-2);font-size:15.5px}

/* Banda de contacto */
.cta-band{background:var(--ink);color:#fff}
.cta-band .wrap{display:grid;gap:24px}
@media(min-width:900px){.cta-band .wrap{grid-template-columns:1fr auto;align-items:center}}
.cta-band .eyebrow{color:#fff}.cta-band .eyebrow::before{background:var(--mark)}
.cta-band p{color:rgba(255,255,255,.78);max-width:56ch;margin-top:10px}
.cta-band .btn.ghost{color:#fff;border-color:rgba(255,255,255,.6)}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--accent);color:#fff;border:0;font:600 15px var(--body);padding:13px 22px;cursor:pointer;border-radius:6px;text-decoration:none}
.btn:hover{background:var(--accent-dark)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn.ghost:hover{background:var(--bg-2)}
.note{font-size:13px;color:var(--mute)}

/* Páginas interiores */
.page-head{padding-block:clamp(36px,5vw,56px) clamp(16px,2.5vw,28px);background:var(--bg)}
.page-head+section{padding-top:clamp(8px,1.5vw,16px)}
.page-head .wrap{display:grid;gap:16px}
.page-head h1{max-width:18ch}
.page-head p{max-width:62ch;color:var(--ink-2);font-size:18px}
main>section:first-child+section{border-top:0}

/* Nosotros */
.about{display:grid;gap:32px}
@media(min-width:900px){.about{grid-template-columns:1.1fr .9fr;gap:72px}}
.about .text{display:grid;gap:14px;font-size:17.5px;color:var(--ink-2);max-width:62ch}
.about .text strong{color:var(--ink)}
.about .text h3{color:var(--ink);margin-top:10px}
.timeline{display:grid;border-left:2px solid var(--rule);padding-left:22px;margin:0}
.timeline li{list-style:none;position:relative;padding:0 0 16px}
.timeline li::before{content:"";position:absolute;left:-29px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid var(--accent)}
.timeline b{font-family:var(--display);font-size:22px;font-weight:700;display:block}
.timeline span{color:var(--ink-2);font-size:15px}
.values{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 24px;margin:8px 0 0;padding:0}
.values li{list-style:none;font-weight:500;padding-left:16px;position:relative;color:var(--ink)}
.values li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;background:var(--accent);border-radius:2px}
.partners{display:flex;flex-wrap:wrap;gap:8px}
.partners span{font-size:14px;border:1px solid var(--rule);padding:6px 12px;border-radius:999px;color:var(--ink-2)}
.people{display:grid;gap:14px}
.people div{padding:16px 18px;background:var(--bg-2);border-radius:var(--radius)}
.people b{display:block}
.people span{color:var(--ink-2);font-size:15px}

/* Experiencia: grupos por sector */
.group{padding-block:clamp(28px,4vw,44px)}
.group+.group{border-top:1px solid var(--rule)}
.group-head{display:grid;gap:8px;margin-bottom:26px;max-width:70ch}
.group-head p{color:var(--ink-2)}

/* Capacidad */
.cap{display:grid;gap:18px}
@media(min-width:860px){.cap{grid-template-columns:repeat(2,1fr)}}
ul.plain{margin:0;padding-left:18px;display:grid;gap:8px;color:var(--ink-2)}
ul.plain strong{color:var(--ink);font-weight:600}
.cap article{background:var(--bg-2);border-radius:var(--radius);padding:26px 24px;display:grid;gap:14px;align-content:start}
.ind{display:grid;grid-template-columns:1fr auto;gap:8px 12px;font-size:15px;margin:0}
.ind dt{color:var(--ink-2)}.ind dd{margin:0;font-weight:500;color:var(--ink);text-align:right}
.cap p{color:var(--ink-2);font-size:15px}

/* Contacto */
.contact{display:grid;gap:36px}
@media(min-width:900px){.contact{grid-template-columns:1fr 1fr;gap:64px}}
.addr{display:grid;gap:18px;align-content:start}
.addr p{margin:0}
.addr h3{margin-bottom:2px}
.addr h3{font-size:22px}
.addr small{display:block;color:var(--mute);font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
.addr .mono{font-size:15px;color:var(--ink)}
.copy{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--rule);background:var(--card);color:var(--ink);font:500 13px var(--body);padding:6px 10px;cursor:pointer;border-radius:6px;margin-left:8px;vertical-align:middle}
.copy[data-done="1"]{border-color:var(--accent);color:var(--accent)}
form.cf{display:grid;gap:14px;background:var(--bg-2);border-radius:var(--radius);padding:26px}
form.cf label{display:grid;gap:6px;font-size:13px;font-weight:500;color:var(--ink-2)}
form.cf input,form.cf textarea,form.cf select{border:1px solid var(--rule);background:#fff;color:var(--ink);padding:11px 12px;font:16px var(--body);border-radius:6px;width:100%}
form.cf textarea{min-height:120px;resize:vertical}
form.cf .cf-title{font-size:22px;margin-bottom:4px}
form.cf .cf-row{display:grid;gap:14px}
@media(min-width:560px){form.cf .cf-row{grid-template-columns:1fr 1fr}}
form.cf .hint{font-weight:400;font-size:13px;color:var(--mute);line-height:1.45}
form.cf .chk{grid-template-columns:auto 1fr;align-items:start;gap:10px;font-weight:400;font-size:13.5px}
form.cf .chk input{width:18px;height:18px;margin-top:2px;padding:0;accent-color:var(--accent)}
form.cf .chk a{color:inherit}

/* Política */
.policy .wrap{display:grid;gap:14px;font-size:16px;color:var(--ink-2)}
.policy .wrap>*{max-width:820px}
.policy h4{font-size:20px;color:var(--ink);margin-top:10px}

footer{border-top:1px solid var(--rule);background:var(--bg-2);padding-block:36px;font-size:14px;color:var(--ink-2)}
footer .wrap{display:grid;gap:18px}
@media(min-width:760px){footer .wrap{grid-template-columns:1fr auto;align-items:end}}
footer .mono{font-size:12px}
footer a{color:var(--ink-2)}
footer nav{display:flex;flex-wrap:wrap;gap:16px;font-size:13px}

/* Encabezado de página con foto al lado (Nosotros): la foto se muestra completa, sin recorte ni ampliación */
.page-head-pic{padding-bottom:0}
.page-head-pic h1{max-width:16ch}
.page-head-pic .lead{margin-top:4px}
.page-head-pic+section{padding-top:clamp(16px,2.5vw,28px)}
.page-head-pic .hero-pic img{aspect-ratio:auto;height:auto;max-width:1000px;margin:0 auto}
/* Contacto: la foto del encabezado usa las mismas columnas que el bloque de contacto para quedar alineada con el formulario */
@media(min-width:900px){.page-head-pic.align-contact .hero-grid{grid-template-columns:1fr 1fr;gap:64px}}

/* Nosotros: propósito y principios */
.purpose{background:var(--bg-2)}
.purpose-text{font-family:var(--display);font-weight:600;font-size:clamp(28px,3.4vw,44px);line-height:1.12;max-width:32ch;margin-top:18px;text-wrap:balance}
.principles{display:grid;gap:26px 36px}
@media(min-width:700px){.principles{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}}
.principle{border-top:2px solid var(--accent);padding-top:14px}
.principle h3{font-size:24px;margin-bottom:8px}
.principle p{color:var(--ink-2);font-size:15.5px}