:root{--marino:#001060;--noche:#000048;--acero:#085090;--celeste:#A6C7E8;--naranja:#F26B1D;--naranja-h:#D4570F;--gris:#888888;--tinta:#1C2530;--suave:#5B6B7A;--bruma:#EAF1F8;--borde:#D3DDE8;--blanco:#FFFFFF;--ease:cubic-bezier(.23,1,.32,1)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{font-family:'Barlow',sans-serif;color:var(--tinta);background:var(--blanco);font-size:17px;line-height:1.55}
img{display:block;max-width:100%;height:auto}
a{color:var(--acero)}
ul{list-style:none}
.in{max-width:1120px;margin:0 auto;padding:0 24px}
.salto{position:absolute;left:-999px}.salto:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px}
h1,h2,h3,.h2,.h3{font-family:'Barlow Condensed',sans-serif;font-weight:700;text-transform:uppercase;line-height:1.06;text-wrap:balance}
.h2{font-size:clamp(30px,4.2vw,44px);color:var(--marino)}
.h3{font-size:28px;color:var(--marino)}
.lead{margin-top:14px;font-size:18px;color:var(--suave);max-width:640px}
.centro{text-align:center;margin-top:26px}
.tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--celeste);border:1px solid rgba(166,199,232,.55);border-radius:8px;padding:5px 12px}
.btn{display:inline-block;text-decoration:none;text-align:center;color:#fff;font-weight:700;font-size:18px;line-height:1.2;padding:16px 30px;border-radius:8px;background:var(--naranja);border:2px solid var(--naranja);transition:background-color .2s ease,transform .16s ease-out}
.btn:active{transform:scale(.97)}
.btn:focus-visible,.enlace:focus-visible,.cab a:focus-visible{outline:2px solid var(--acero);outline-offset:3px}
.btn-sm{font-size:16px;padding:10px 20px}
.btn-linea{background:transparent;border-color:rgba(255,255,255,.6)}
.enlace{display:inline-block;margin-top:16px;font-weight:600;text-decoration:none;border-bottom:2px solid var(--celeste)}
@media (hover:hover) and (pointer:fine){.btn:hover{background:var(--naranja-h);border-color:var(--naranja-h)}.btn-linea:hover{background:rgba(255,255,255,.12);border-color:#fff}.enlace:hover{border-color:var(--acero)}}
/* cabecera */
.cab{position:sticky;top:0;z-index:20;background:#fff;border-bottom:3px solid var(--marino)}
.cab-in{max-width:1120px;margin:0 auto;padding:8px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.cab-logo img{height:52px;width:auto}
.cab-nav{display:flex;align-items:center;gap:26px}
.cab-nav a:not(.btn){text-decoration:none;font-weight:600;font-size:16px;color:var(--marino);padding:6px 0;border-bottom:3px solid transparent}
.cab-nav a[aria-current]{border-color:var(--naranja)}
.cab-menu{display:none;width:44px;height:44px;background:none;border:0;cursor:pointer;padding:10px}
.cab-menu span{display:block;height:3px;background:var(--marino);border-radius:2px}.cab-menu span+span{margin-top:6px}
/* hero */
.hero{background:var(--noche);color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(166,199,232,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(166,199,232,.07) 1px,transparent 1px);background-size:44px 44px}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding-top:60px;padding-bottom:64px}
.hero h1{margin-top:16px;font-size:clamp(36px,5vw,58px)}
.hero h1 em{display:block;font-style:normal;color:var(--celeste)}
.hero p{margin-top:18px;font-size:19px;color:#D5DFEC;max-width:520px}
.hero-btns{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero figure img,.dos figure img{border-radius:12px;border:1px solid rgba(166,199,232,.45);width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--marino)}
.hero2{background:var(--noche);color:#fff;padding:54px 0 50px}
.hero2 h1{margin-top:14px;font-size:clamp(32px,4.6vw,50px);max-width:820px}
.hero2 p{margin-top:14px;font-size:19px;color:#D5DFEC;max-width:680px}
.franja{background:var(--marino);color:#fff}
.franja ul{display:grid;grid-template-columns:repeat(4,1fr)}
.franja li{padding:20px 18px;font-size:15px;line-height:1.35;color:#D5DFEC;border-left:1px solid rgba(255,255,255,.16)}
.franja li:first-child{border-left:0;padding-left:0}
.franja b{display:block;font-family:'Barlow Condensed',sans-serif;font-size:26px;color:#fff;text-transform:uppercase;margin-bottom:2px}
/* secciones */
.sec{padding:64px 0}
.sec:not(.sec-osc):not(.sec-bruma)+.sec:not(.sec-osc):not(.sec-bruma){padding-top:8px}
.sec-bruma{background:var(--bruma)}
.sec-osc{background:var(--noche);color:#fff}
.sec-osc .h2{color:#fff}.sec-osc .lead{color:#D5DFEC;margin-bottom:26px}
.dos{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.dos-top{align-items:start;margin-top:40px}
.fams{margin-top:32px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fam{display:flex;flex-direction:column;text-decoration:none;color:var(--tinta);background:#fff;border:1px solid var(--borde);border-bottom:3px solid var(--acero);border-radius:12px;overflow:hidden;transition:transform .25s var(--ease),border-color .25s ease}
.fam img{width:100%;height:170px;object-fit:cover}
.fam div{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.fam h3{font-size:24px;color:var(--marino)}
.fam p{margin-top:8px;font-size:16px;color:var(--suave);flex:1}
.fam span{margin-top:14px;font-weight:600;color:var(--acero)}
@media (hover:hover) and (pointer:fine){.fam:hover{transform:translateY(-4px);border-color:var(--naranja)}}
.clientes{margin-top:28px;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.clientes li{background:var(--bruma);border-radius:8px;padding:18px 14px;text-align:center;font-weight:600;color:var(--marino)}
.chk{margin-top:16px}
.chk li{position:relative;padding:11px 0 11px 32px;border-top:1px solid var(--borde);font-size:17px;line-height:1.45}
.chk li:first-child{border-top:0}
.chk li::before{content:"";position:absolute;left:3px;top:18px;width:13px;height:7px;border-left:3px solid var(--acero);border-bottom:3px solid var(--acero);transform:rotate(-45deg)}
.chk2{margin-top:26px;columns:2;column-gap:44px}.chk2 li{break-inside:avoid;border-top:0;border-bottom:1px solid var(--borde)}
/* servicios */
.indice{background:#fff;border-bottom:1px solid var(--borde)}
.indice .in{display:flex;gap:10px;overflow-x:auto;padding-top:14px;padding-bottom:14px}
.indice a{white-space:nowrap;text-decoration:none;font-weight:600;font-size:15px;color:var(--marino);background:var(--bruma);border-radius:999px;padding:8px 16px}
.servs{padding-top:20px;padding-bottom:40px}
.serv{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start;padding:44px 0;border-bottom:1px solid var(--borde)}
.serv:last-child{border-bottom:0}
.serv figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;border-bottom:4px solid var(--acero)}
.serv p{margin-top:10px;color:var(--suave);font-size:18px}
/* experiencia */
.proys{margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.proy{background:#fff;border:1px solid var(--borde);border-left:4px solid var(--acero);border-radius:12px;overflow:hidden}
.proy img{width:100%;height:180px;object-fit:cover}
.proy div{padding:18px 20px 20px}
.proy h3{font-size:22px;color:var(--marino)}
.proy p{margin-top:8px;font-size:15.5px;color:var(--suave)}
/* nosotros */
.mv{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.mv article{background:#fff;border-radius:12px;border-top:4px solid var(--acero);padding:28px}
.mv p{margin-top:10px}
.iso{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center;background:var(--marino);color:#D5DFEC;border-radius:12px;padding:28px 32px}
.iso b{font-family:'Barlow Condensed',sans-serif;font-size:40px;line-height:1;color:#fff;white-space:nowrap}
/* contacto */
.cont{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dato{display:flex;flex-direction:column;text-decoration:none;color:var(--tinta);background:var(--bruma);border-radius:12px;border-top:4px solid var(--acero);padding:26px}
.dato span{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--suave)}
.dato b{margin-top:8px;font-size:20px;line-height:1.3;color:var(--marino);overflow-wrap:anywhere;flex:1}
.dato i{margin-top:16px;font-style:normal;font-weight:600;color:var(--acero)}
/* cta y pie */
.cta{background:var(--bruma);padding:48px 0}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta h2{font-size:clamp(26px,3.4vw,36px);color:var(--marino)}
.cta p{margin-top:8px;color:var(--suave)}
.cta .btn{flex:none}
.pie{background:var(--noche);color:#B9C8DC;font-size:15px}
.pie-in{max-width:1120px;margin:0 auto;padding:48px 24px 28px;display:grid;grid-template-columns:1.4fr .7fr 1.2fr;gap:36px}
.pie b{display:block;color:#fff;margin-bottom:10px}
.pie-marca{font-family:'Barlow Condensed',sans-serif;font-size:30px;letter-spacing:.02em}
.pie-iso{margin-top:12px;color:var(--celeste)}
.pie li{margin-bottom:8px}
.pie a{color:#B9C8DC;text-decoration:none}
@media (hover:hover){.pie a:hover{color:#fff}}
.pie-fin{border-top:1px solid rgba(255,255,255,.14);text-align:center;padding:18px 24px;font-size:14px}
/* entrada */
.anim .rv{opacity:0;transform:translateY(22px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
.anim .rv.ya{opacity:1;transform:none}
@media (min-width:761px){.fam:nth-child(7){grid-column:1/-1;flex-direction:row}.fam:nth-child(7) img{width:36%;height:auto;min-height:200px}}
@media (max-width:900px){
 .fams,.proys{grid-template-columns:repeat(2,1fr)}
 .clientes{grid-template-columns:repeat(2,1fr)}
 .franja ul{grid-template-columns:repeat(2,1fr)}
 .franja li:nth-child(odd){border-left:0;padding-left:0}
 .franja li:nth-child(n+3){border-top:1px solid rgba(255,255,255,.16)}
}
@media (max-width:760px){
 body{font-size:16px}
 .in,.cab-in{padding-left:16px;padding-right:16px}
 .cab-logo img{height:44px}
 .cab-menu{display:block}
 .cab-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:3px solid var(--marino);flex-direction:column;align-items:stretch;gap:0;padding:8px 16px 16px}
 .cab-nav.abierto{display:flex}
 .cab-nav a:not(.btn){padding:14px 0;border-bottom:1px solid var(--borde)}
 .cab-nav .btn{margin-top:14px}
 .hero-in{grid-template-columns:1fr;gap:28px;padding-top:36px;padding-bottom:40px}
 .hero-btns .btn{flex:1 1 100%}
 .hero2{padding:36px 0}
 .sec{padding:44px 0}
 .dos,.serv,.mv,.cont,.fams,.proys{grid-template-columns:1fr}
 .dos{gap:26px}.serv{gap:20px;padding:32px 0}
 .chk2{columns:1}
 .iso{grid-template-columns:1fr;gap:10px;padding:24px}
 .cta-in{flex-direction:column;align-items:stretch;text-align:center}
 .pie-in{grid-template-columns:1fr;gap:26px;padding-top:36px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.anim .rv{transform:none;transition:opacity .2s ease}.fam,.btn{transition:none}}

/* WhatsApp: ícono en botones y tarjeta de contacto */
.btn-wa{display:inline-flex;align-items:center;justify-content:center;gap:10px}
.wa-i{width:20px;height:20px;flex:none;fill:currentColor}
.cont{grid-template-columns:repeat(2,1fr)}
.dato-wa{border-top-color:var(--naranja)}.dato-wa i{color:var(--naranja)}
/* Celular: en el hero, la foto va antes del botón */
@media (max-width:760px){.hero-in{display:flex;flex-direction:column;gap:0}.hero-in>div{display:contents}.hero-in>figure{order:2;margin-top:24px}.hero-in .hero-btns{order:3;margin-top:22px}.cont{grid-template-columns:1fr}}

/* Nota bajo los botones de WhatsApp */
.wa-nota{display:block;flex-basis:100%;margin-top:2px;font-size:14px;font-weight:500;opacity:.85}
.wa-nota::before{content:"\2713\00a0"}
.wa-box{display:flex;flex-direction:column;align-items:center;gap:8px;flex:none}
.cta .wa-nota{color:var(--suave);text-align:center}
@media (max-width:760px){.wa-box{align-items:stretch}.wa-nota{text-align:center}}
/* Celular: heros centrados (Inicio y encabezados de cada página) */
@media (max-width:760px){.hero-in,.hero2 .in{text-align:center}.hero p,.hero2 h1,.hero2 p{margin-left:auto;margin-right:auto}.hero-btns{justify-content:center}.hero .wa-nota,.hero2 .wa-nota{text-align:center}}

/* Muro de logos de clientes (todos en marino, fondo transparente) */
.clientes.logos{grid-template-columns:repeat(5,1fr)}
.clientes.logos li{background:#fff;border:1px solid var(--borde);display:flex;align-items:center;justify-content:center;height:100px;padding:20px 22px}
.clientes.logos img{width:auto;height:auto;max-width:100%;max-height:52px;opacity:.9}
@media (max-width:900px){.clientes.logos{grid-template-columns:repeat(2,1fr)}.clientes.logos li{height:88px;padding:16px}.clientes.logos img{max-height:44px}}
.clientes.logos img[alt="Pemex"],.clientes.logos img[alt="Minera Frisco"]{max-height:68px}.clientes.logos img[alt="ENI"]{max-height:38px}
@media (max-width:900px){.clientes.logos img[alt="Pemex"],.clientes.logos img[alt="Minera Frisco"]{max-height:58px}.clientes.logos img[alt="ENI"]{max-height:32px}}

/* Servicio sin foto: el texto queda alineado con la columna de texto de los demás */
.serv-sin-foto>div{grid-column:2}
@media (max-width:760px){.serv-sin-foto>div{grid-column:auto}}

/* Tarjeta de familia sin foto (calibración, al final y a lo ancho) */
.fam-sin-foto{border-top:3px solid var(--acero)}.fam-sin-foto div{padding:24px 28px}