*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:'Inter',sans-serif;color:#1A1A22;background:#EDEAE0;overflow-x:hidden}
    img{display:block;max-width:100%}
    a{text-decoration:none;color:inherit}
    ul{list-style:none}
    :root{
      --navy:#1B3672;--navy-dark:#0F2247;--navy-mid:#2C4A8F;
      --rouge:#8B1520;--rouge-light:#A52535;--gold:#C8A020;
      --cream:#EDEAE0;--sand:#EDE8DC;--white:#FFFFFF;
      --dark:#1A1A22;--grey:#4A4955;--grey-light:#7A7885;
      --border:rgba(27,54,114,.14);--radius:3px;--T:.38s cubic-bezier(.25,.8,.25,1);
    }

    /* ── LOGO ── */
    .logo-mark{display:inline-flex;flex-direction:column;align-items:center;line-height:1;gap:0;text-decoration:none}
    .logo-zubi{font-family:'Playfair Display',serif;font-weight:900;font-size:2rem;color:var(--white);letter-spacing:.06em;line-height:1}
    .nav .logo-zubi{font-size:1.7rem}
    .logo-sub1{font-family:'Inter',sans-serif;font-weight:800;font-size:.58rem;letter-spacing:.32em;color:var(--white);text-transform:uppercase;line-height:1.4;margin-top:1px}
    .logo-sub2{font-family:'Inter',sans-serif;font-weight:700;font-size:.48rem;letter-spacing:.28em;color:var(--white);text-transform:uppercase;line-height:1.3}
    .logo-rule{width:90%;height:2px;background:var(--rouge);margin:4px 0 3px}
    .logo-tagline{font-family:'Inter',sans-serif;font-size:.38rem;letter-spacing:.14em;color:rgba(255,255,255,.65);text-transform:uppercase;text-align:center}
    .footer .logo-zubi{font-size:2.1rem}

    /* ── NAVBAR ── */
    .nav{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:1.6rem 3rem;transition:background var(--T),padding var(--T),box-shadow var(--T)}
    .nav.scrolled{background:rgba(10,22,52,.97);box-shadow:0 2px 24px rgba(0,0,0,.45);padding:.9rem 3rem}
    .nav-links{display:flex;gap:1.6rem;align-items:center}
    .nav-links a{font-size:.7rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.75);transition:color var(--T)}
    .nav-links a:hover{color:var(--white)}
    .nav-cta{background:var(--rouge)!important;color:var(--white)!important;padding:.4rem 1.1rem!important;border-radius:var(--radius);letter-spacing:.1em!important}
    .nav-cta:hover{background:var(--rouge-light)!important}
    .nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px}
    .nav-toggle span{display:block;width:22px;height:2px;background:var(--white)}

    /* ── HERO ── */
    .hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;overflow:hidden}
    .hero-bg-photo{position:absolute;inset:0;background:url('../Fotos/web/hero-zubi.jpg') center 40%/cover no-repeat;filter:grayscale(0%) contrast(1.05) brightness(.92)}
    .hero-bg-overlay{position:absolute;inset:0;background:linear-gradient(105deg,rgba(6,14,36,.91) 0%,rgba(10,22,52,.72) 45%,rgba(8,18,45,.82) 100%)}
    .hero-geo-circle{position:absolute;top:-10%;right:-8%;width:600px;height:600px;border-radius:50%;border:1.5px solid rgba(139,21,32,.28);pointer-events:none}
    .hero-geo-block{position:absolute;bottom:0;right:5%;width:3px;height:60%;background:linear-gradient(180deg,transparent,var(--rouge))}
    .hero-left-bar{position:absolute;left:0;top:0;bottom:0;width:5px;background:linear-gradient(180deg,var(--rouge) 0%,var(--navy-mid) 100%)}
    .hero-content{position:relative;z-index:2;padding:0 5rem 9rem;max-width:640px}
    .hero-tagline-band{display:inline-flex;align-items:center;gap:.5rem;background:rgba(139,21,32,.16);border-left:2px solid var(--rouge);padding:.45rem 1rem;margin-bottom:1.4rem}
    .hero-tagline-band span{font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.75)}
    .hero-title{font-family:'Playfair Display',serif;font-weight:900;font-size:clamp(1.9rem,3.4vw,3.2rem);line-height:1.12;color:var(--white);margin-bottom:1.1rem}
    .hero-title .hl{color:var(--rouge)}
    .hero-desc{font-size:.93rem;line-height:1.75;color:rgba(255,255,255,.68);max-width:480px;margin-bottom:2rem}
    .hero-btns{display:flex;gap:1rem;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;padding:.72rem 1.7rem;border-radius:var(--radius);border:1.5px solid transparent;cursor:pointer;transition:all var(--T)}
    .btn-rouge{background:var(--rouge);color:var(--white);border-color:var(--rouge)}
    .btn-rouge:hover{background:var(--rouge-light);border-color:var(--rouge-light);transform:translateY(-2px)}
    .btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.4)}
    .btn-ghost:hover{border-color:var(--white);transform:translateY(-2px)}
    .btn-navy{background:var(--navy);color:var(--white);border-color:var(--navy)}
    .btn-navy:hover{background:var(--navy-mid);transform:translateY(-2px)}
    .hero-scroll{position:absolute;bottom:2.2rem;right:3rem;display:flex;flex-direction:column;align-items:center;gap:.4rem;color:rgba(255,255,255,.4);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase}
    .hero-scroll::after{content:'';width:1px;height:52px;background:linear-gradient(to bottom,rgba(255,255,255,.4),transparent);animation:pulse 2.4s ease-in-out infinite}
    @keyframes pulse{0%,100%{opacity:.3}50%{opacity:1}}

    /* ── TRUST STRIP ── */
    .trust-strip{background:var(--navy-dark);padding:1.2rem 3rem;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:3rem;border-top:3px solid var(--rouge)}
    .trust-item{display:flex;align-items:center;gap:.55rem;font-size:.72rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.5)}
    .trust-dot{width:6px;height:6px;border-radius:50%;background:var(--rouge);flex-shrink:0}

    /* ── UTILITIES ── */
    .section{padding:7rem 0}
    .container{max-width:1280px;margin:0 auto;padding:0 3rem}
    .eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:.7rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--rouge);margin-bottom:1rem}
    .eyebrow::before{content:'';width:24px;height:2px;background:var(--rouge)}
    .section-title{font-family:'Playfair Display',serif;font-weight:900;font-size:clamp(2rem,3.8vw,3.4rem);line-height:1.1;color:var(--dark)}
    .section-title .hl{color:var(--rouge)}
    .section-title.light{color:var(--white)}
    .reveal,.reveal-l,.reveal-r{opacity:0;transition:opacity .7s ease,transform .7s ease}
    .reveal{transform:translateY(32px)}.reveal-l{transform:translateX(-32px)}.reveal-r{transform:translateX(32px)}
    .reveal.on,.reveal-l.on,.reveal-r.on{opacity:1;transform:none}
    .d1{transition-delay:.1s!important}.d2{transition-delay:.2s!important}.d3{transition-delay:.3s!important}
    .d4{transition-delay:.4s!important}.d5{transition-delay:.5s!important}

    /* ── NOSOTROS ── */
    .about{background:var(--cream)}
    .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}
    .about-visual{position:relative}
    .about-img{width:100%;height:500px;object-fit:contain;object-position:center top;border-radius:var(--radius);filter:contrast(1.04);background:var(--cream)}
    .about-block{position:absolute;bottom:-2rem;right:-2rem;width:140px;height:140px;background:var(--rouge);z-index:-1}
    .about-circle{position:absolute;top:-1.8rem;left:-1.8rem;width:90px;height:90px;border-radius:50%;border:3px solid var(--navy);z-index:-1}
    .heritage-badge{position:absolute;top:1.5rem;left:1.5rem;background:var(--navy-dark);color:var(--white);padding:1rem 1.4rem;text-align:center;border-left:4px solid var(--rouge)}
    .heritage-badge .big{font-family:'Playfair Display',serif;font-weight:900;font-size:2rem;line-height:1;display:block;color:var(--white)}
    .heritage-badge .small{font-size:.6rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.6);display:block;margin-top:.2rem}
    .about-text p{font-size:1rem;line-height:1.85;color:var(--grey);margin-bottom:1.2rem}
    .heritage-note{background:var(--navy-dark);color:var(--white);padding:1.2rem 1.6rem;border-left:4px solid var(--rouge);margin:1.6rem 0}
    .heritage-note strong{display:block;font-size:.75rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:.3rem}
    .heritage-note p{font-size:.88rem;color:rgba(255,255,255,.75);margin:0}
    .pillars{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1.8rem}
    .pillar{display:flex;gap:.7rem;align-items:flex-start}
    .pillar-icon{width:34px;height:34px;min-width:34px;background:var(--sand);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:1rem}
    .pillar strong{display:block;font-size:.78rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--dark);margin-bottom:.1rem}
    .pillar span{font-size:.8rem;color:var(--grey);line-height:1.5}

    /* ── EXPERIENCIA POR SECTOR ── */
    .exp-sector{background:var(--cream);padding:6rem 0 5rem}
    .exp-header{text-align:center;max-width:640px;margin:0 auto 4rem}
    .exp-intro{font-size:.93rem;line-height:1.78;color:var(--grey);margin-top:.75rem}
    .sector-groups{display:flex;flex-direction:column}
    .sg{display:grid;grid-template-columns:240px 1fr;gap:2rem 3.5rem;padding:2.5rem 0;border-top:1px solid rgba(14,36,63,.1);align-items:start}
    .sg:last-child{border-bottom:1px solid rgba(14,36,63,.1)}
    .sg-num{font-size:.65rem;font-weight:700;letter-spacing:.2em;color:var(--rouge);margin-bottom:.35rem}
    .sg-label{font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--dark);margin-bottom:.55rem;line-height:1.4}
    .sg-desc{font-size:.78rem;line-height:1.7;color:var(--grey)}
    .logo-grid{display:flex;flex-wrap:wrap;gap:.55rem;align-content:flex-start}
    .lph{display:inline-flex;align-items:center;justify-content:center;height:72px;padding:.5rem 1.2rem;border:1px solid rgba(14,36,63,.11);border-radius:3px;background:rgba(255,255,255,.55);transition:all .25s ease;cursor:default;position:relative}
    .lph span{font-size:.63rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(14,36,63,.28);white-space:nowrap;transition:color .25s ease;pointer-events:none}
    .lph:hover{background:#fff;border-color:rgba(14,36,63,.22);transform:translateY(-2px);box-shadow:0 4px 14px rgba(14,36,63,.07)}
    .lph:hover span{color:var(--navy)}
    .lph img{height:52px;width:auto;max-width:160px;object-fit:contain;display:block;filter:grayscale(1) opacity(.42);transition:filter .28s ease}
    .lph:hover img{filter:grayscale(0) opacity(1)}
    .exp-note{font-size:.67rem;color:rgba(14,36,63,.35);text-align:center;margin-top:3rem;letter-spacing:.04em;line-height:1.65;max-width:500px;margin-left:auto;margin-right:auto}

    /* ── MÉTRICAS ── */
    .metrics{background:var(--rouge);padding:5rem 0}
    .metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(0,0,0,.1)}
    .metric{background:var(--rouge);padding:2.8rem 1.5rem;text-align:center;transition:background var(--T)}
    .metric:hover{background:var(--rouge-light)}
    .metric-num{font-family:'Playfair Display',serif;font-weight:900;font-size:3.4rem;color:var(--white);line-height:1}
    .metric-num sup{font-size:1.4rem;vertical-align:super}
    .metric-lbl{font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.65);margin-top:.5rem}

    /* ── INDUSTRIAL SECTION ── */
    .industrial-section{background:var(--rouge)}
    .industrial-section .section-title{color:var(--white)}
    .industrial-section .section-title .hl{color:rgba(255,255,255,.75)}
    .industrial-section .eyebrow{color:rgba(255,255,255,.7)}
    .industrial-section .eyebrow::before{background:rgba(255,255,255,.5)}
    .ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.8rem}
    .ind-card{background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:2rem 1.6rem;transition:background var(--T),transform var(--T)}
    .ind-card:hover{background:rgba(0,0,0,.28);transform:translateY(-3px)}
    .ind-card-icon{font-size:1.6rem;margin-bottom:1rem}
    .ind-card h3{font-family:'Playfair Display',serif;font-weight:700;font-size:1.05rem;color:var(--white);margin-bottom:.5rem}
    .ind-card p{font-size:.84rem;line-height:1.7;color:rgba(255,255,255,.68)}
    .ind-heritage{background:rgba(0,0,0,.15);border-left:3px solid rgba(255,255,255,.35);padding:1.4rem 1.8rem;margin-top:2.8rem;border-radius:0 var(--radius) var(--radius) 0}
    .ind-heritage p{font-size:.88rem;line-height:1.78;color:rgba(255,255,255,.72)}
    .ind-heritage strong{color:var(--white)}

    /* ── SERVICIOS ── */
    .services{background:var(--cream)}
    .services-hd{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:3rem;flex-wrap:wrap;gap:1rem}
    .services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
    .svc-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:2.4rem 1.8rem 2rem;position:relative;overflow:hidden;transition:transform var(--T),box-shadow var(--T)}
    .svc-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--rouge);transform:scaleX(0);transform-origin:left;transition:transform var(--T)}
    .svc-card:hover{transform:translateY(-5px);box-shadow:0 16px 48px rgba(27,54,114,.12)}
    .svc-card:hover::after{transform:scaleX(1)}
    .svc-num{position:absolute;top:1.2rem;right:1.4rem;font-family:'Playfair Display',serif;font-weight:900;font-size:2.8rem;color:rgba(27,54,114,.06);line-height:1}
    .svc-icon{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:1.4rem}
    .si-1{background:rgba(27,54,114,.10)}.si-2{background:rgba(139,21,32,.10)}.si-3{background:rgba(200,160,32,.10)}
    .si-4{background:rgba(27,54,114,.08)}.si-5{background:rgba(139,21,32,.08)}.si-6{background:rgba(27,54,114,.06)}
    .svc-card h3{font-family:'Playfair Display',serif;font-weight:700;font-size:1.18rem;color:var(--dark);margin-bottom:.7rem}
    .svc-card p{font-size:.86rem;line-height:1.72;color:var(--grey)}

    /* ── COLOR STRIPE ── */
    .stripe{display:flex;height:8px}
    .stripe span{flex:1}
    .s1{background:var(--navy-dark)}.s2{background:var(--navy)}.s3{background:var(--navy-mid)}
    .s4{background:var(--rouge)}.s5{background:var(--rouge-light)}.s6{background:var(--gold)}

    /* ── PROYECTOS ── */
    .projects{background:var(--sand)}
    .projects-hd{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:2.4rem;flex-wrap:wrap;gap:1rem}
    .filter-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:2rem}
    .filt{font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:.45rem 1.1rem;border-radius:100px;border:2px solid rgba(0,0,0,.1);background:var(--white);color:var(--grey);cursor:pointer;transition:all var(--T)}
    .filt.active,.filt:hover{background:var(--navy);color:var(--white);border-color:var(--navy)}
    .proj-grid{display:grid;grid-template-columns:repeat(12,1fr);grid-template-rows:290px 290px;gap:1.1rem}
    .pc{position:relative;overflow:hidden;border-radius:var(--radius);cursor:pointer}
    .pc:nth-child(1){grid-column:1/7;grid-row:1}.pc:nth-child(2){grid-column:7/10;grid-row:1}.pc:nth-child(3){grid-column:10/13;grid-row:1}
    .pc:nth-child(4){grid-column:1/5;grid-row:2}.pc:nth-child(5){grid-column:5/9;grid-row:2}.pc:nth-child(6){grid-column:9/13;grid-row:2}
    .pc img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
    .pc:hover img{transform:scale(1.06)}
    .pc-ov{position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(15,34,71,.92) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:1.4rem;opacity:0;transition:opacity var(--T)}
    .pc:hover .pc-ov{opacity:1}
    .pc:nth-child(2) .pc-ov,.pc:nth-child(3) .pc-ov{opacity:.8}
    .pc-tag{font-size:.62rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:.4rem}
    .pc-name{font-family:'Playfair Display',serif;font-weight:700;font-size:1.05rem;color:var(--white);line-height:1.3}
    .pc-loc{font-size:.72rem;color:rgba(255,255,255,.6);margin-top:.25rem}

    /* ── PROYECTOS FEATURED — MUSEOS ── */
    .cat-intro{margin-bottom:3rem}
    .cat-label{font-size:.65rem;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--rouge);margin-bottom:.7rem;display:flex;align-items:center;gap:.8rem}
    .cat-label::after{content:'';flex:1;height:1px;background:rgba(14,36,63,.12)}
    .cat-sublabel{font-size:1.05rem;font-weight:600;color:var(--dark);margin-bottom:.6rem;font-family:'Playfair Display',serif;font-style:italic}
    .cat-desc{font-size:.93rem;line-height:1.84;color:var(--grey);max-width:680px}
    .mus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-bottom:3rem}
    .mus-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--T),box-shadow var(--T)}
    .mus-card:hover{transform:translateY(-5px);box-shadow:0 20px 56px rgba(27,54,114,.12)}
    .mus-img{position:relative;overflow:hidden;aspect-ratio:16/10}
    .mus-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease;display:block}
    .mus-card:hover .mus-img img{transform:scale(1.05)}
    .mus-img.mus-ph{background:linear-gradient(135deg,var(--sand) 0%,var(--cream) 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.6rem}
    .mus-ph-label{font-size:.62rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:rgba(14,36,63,.28)}
    .mus-body{padding:1.6rem 1.8rem 2rem;display:flex;flex-direction:column;flex:1}
    .mus-tag{font-size:.6rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--rouge);margin-bottom:.55rem}
    .mus-title{font-family:'Playfair Display',serif;font-weight:700;font-size:1.12rem;line-height:1.3;color:var(--dark);margin-bottom:.8rem}
    .mus-desc{font-size:.84rem;line-height:1.76;color:var(--grey);flex:1;margin-bottom:1.4rem}
    .mus-link{display:inline-flex;align-items:center;gap:.4rem;font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--navy);border-bottom:1.5px solid var(--navy);padding-bottom:.15rem;transition:color var(--T),border-color var(--T);align-self:flex-start}
    .mus-link svg{width:12px;height:12px;transition:transform var(--T)}
    .mus-link:hover{color:var(--rouge);border-color:var(--rouge)}
    .mus-link:hover svg{transform:translateX(3px)}
    .proj-other{transition:opacity .3s}
    /* ── GALERÍA ── */
    .mus-img{cursor:pointer}
    .gal-badge{position:absolute;bottom:.65rem;right:.65rem;background:rgba(0,0,0,.58);color:#fff;font-size:.6rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:.28rem .65rem;border-radius:2rem;backdrop-filter:blur(6px);pointer-events:none;display:inline-flex;align-items:center;gap:.35rem}
    .lb{position:fixed;inset:0;background:rgba(0,0,0,.94);z-index:9000;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .25s}
    .lb.open{opacity:1;pointer-events:auto}
    .lb-wrap{width:90vw;max-height:76vh;display:flex;align-items:center;justify-content:center}
    .lb-wrap img{max-width:90vw;max-height:76vh;object-fit:contain;border-radius:3px;display:block}
    .lb-btn{background:rgba(255,255,255,.15);border:none;color:#fff;cursor:pointer;border-radius:4px;opacity:.85;transition:opacity .2s,background .2s;line-height:1;font-family:inherit;pointer-events:auto}
    .lb-btn:hover{opacity:1;background:rgba(255,255,255,.28)}
    .lb-close{position:fixed;top:1.1rem;right:1.3rem;font-size:1.9rem;padding:.2rem .55rem;z-index:9001}
    .lb-prev{position:fixed;left:1rem;top:50%;transform:translateY(-50%);font-size:2.8rem;padding:.5rem .9rem;z-index:9001}
    .lb-next{position:fixed;right:1rem;top:50%;transform:translateY(-50%);font-size:2.8rem;padding:.5rem .9rem;z-index:9001}
    .lb-footer{margin-top:.85rem;display:flex;flex-direction:column;align-items:center;gap:.55rem}
    .lb-ctr{color:rgba(255,255,255,.55);font-size:.7rem;letter-spacing:.16em}
    .lb-thumbs{display:flex;gap:.4rem;overflow-x:auto;max-width:88vw;padding:.2rem .1rem;scrollbar-width:none}
    .lb-thumbs::-webkit-scrollbar{display:none}
    .lb-thumbs img{width:52px;height:37px;object-fit:cover;border-radius:2px;cursor:pointer;opacity:.42;transition:opacity .18s;flex-shrink:0;outline:2px solid transparent;outline-offset:2px}
    .lb-thumbs img.on{opacity:1;outline-color:#fff}

    /* ── PROCESO ── */
    .process{background:var(--navy-dark);position:relative;overflow:hidden}
    .process::before{content:'';position:absolute;top:-150px;right:-150px;width:500px;height:500px;border-radius:50%;border:1px solid rgba(139,21,32,.15);pointer-events:none}
    .process-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:3.8rem;position:relative}
    .process-steps::after{content:'';position:absolute;top:19px;left:20px;right:20px;height:1px;background:rgba(255,255,255,.1)}
    .pstep{padding:0 1rem;position:relative;z-index:1}
    .pstep-dot{width:38px;height:38px;border-radius:50%;border:2px solid var(--rouge);background:var(--navy-dark);display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:900;font-size:.8rem;color:var(--rouge);margin-bottom:1.4rem;transition:all var(--T)}
    .pstep:hover .pstep-dot{background:var(--rouge);color:var(--white)}
    .pstep h4{font-family:'Playfair Display',serif;font-weight:700;font-size:.98rem;color:var(--white);margin-bottom:.5rem}
    .pstep p{font-size:.8rem;line-height:1.65;color:rgba(255,255,255,.42)}

    /* ── TESTIMONIALES ── */
    .testimonials{background:var(--cream)}
    .testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:3rem}
    .tcard{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:2rem}
    .tcard-stars{color:var(--gold);font-size:.85rem;margin-bottom:.6rem}
    .tcard-quote{font-size:2.6rem;font-family:'Playfair Display',serif;font-weight:900;color:var(--rouge);line-height:.8;opacity:.25;margin-bottom:.5rem}
    .tcard-text{font-size:.9rem;line-height:1.78;color:var(--grey);font-style:italic;margin-bottom:1.4rem}
    .tcard-author{display:flex;align-items:center;gap:.8rem}
    .tcard-av{width:42px;height:42px;border-radius:50%;background:var(--sand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.88rem;color:var(--navy);flex-shrink:0}
    .tcard-info strong{display:block;font-size:.85rem;font-weight:700;color:var(--dark)}
    .tcard-info span{font-size:.76rem;color:var(--grey)}
    .cform-wrap{margin-top:3.6rem;background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:2.4rem}
    .cform-wrap h3{font-family:'Playfair Display',serif;font-size:1.45rem;font-weight:700;color:var(--dark);margin-bottom:.3rem}
    .cform-wrap>p{font-size:.86rem;color:var(--grey);margin-bottom:1.6rem}
    .frow{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem;margin-bottom:1.1rem}
    .frow.full{grid-template-columns:1fr}
    .fg{display:flex;flex-direction:column;gap:.35rem}
    .fg label{font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--grey)}
    .fg input,.fg textarea,.fg select{padding:.72rem 1rem;border:1.5px solid rgba(0,0,0,.1);border-radius:var(--radius);font-family:'Inter',sans-serif;font-size:.88rem;color:var(--dark);background:var(--cream);outline:none;transition:border-color var(--T)}
    .fg input:focus,.fg textarea:focus,.fg select:focus{border-color:var(--navy)}
    .fg textarea{min-height:110px;resize:vertical}
    .stars-input{display:flex;gap:5px}
    .sstar{font-size:1.5rem;color:#DDD;cursor:pointer;transition:color var(--T)}
    .sstar.on{color:var(--gold)}
    .success-msg{display:none;text-align:center;padding:2.5rem 1.5rem}
    .success-msg .big{font-size:2rem}
    .success-msg h4{font-family:'Playfair Display',serif;font-size:1.35rem;font-weight:700;color:var(--navy);margin-top:.5rem}
    .success-msg p{font-size:.88rem;color:var(--grey);margin-top:.4rem;line-height:1.65}
    .fg-err{font-size:.7rem;color:#b0271d;margin-top:.28rem;display:none;letter-spacing:.02em}
    .fg.has-error .fg-err{display:block}
    .fg.has-error input,.fg.has-error textarea,.fg.has-error select{border-color:#b0271d!important}
    .form-err-banner{display:none;background:#fdf2f2;border:1px solid #f5c6c6;border-radius:var(--radius);padding:.8rem 1.1rem;font-size:.78rem;color:#b0271d;margin-bottom:1rem;text-align:center}
    .hp-field{display:none!important;visibility:hidden;position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
    .form-privacy{font-size:.68rem;color:rgba(0,0,0,.35);line-height:1.65;margin-top:1.1rem;text-align:center}
    .form-wa{text-align:center;margin-top:.85rem;font-size:.77rem;color:var(--grey)}
    .form-wa a{color:var(--navy);font-weight:600;text-decoration:underline;text-underline-offset:3px;transition:color var(--T)}
    .form-wa a:hover{color:var(--rouge)}
    .btn[disabled]{opacity:.65;cursor:not-allowed;pointer-events:none}

    /* ── CTA BAND ── */
    .cta-band{background:var(--navy);position:relative;overflow:hidden;padding:6rem 0;text-align:center}
    .cta-band::before{content:'';position:absolute;top:-100px;left:-100px;width:380px;height:380px;border-radius:50%;background:rgba(255,255,255,.04)}
    .cta-band::after{content:'';position:absolute;bottom:-70px;right:8%;width:250px;height:250px;background:rgba(139,21,32,.15);clip-path:polygon(50% 0%,100% 100%,0% 100%)}
    .cta-band h2{font-family:'Playfair Display',serif;font-weight:900;font-size:clamp(1.9rem,4vw,3.2rem);color:var(--white);margin-bottom:.9rem;position:relative;z-index:1}
    .cta-band p{font-size:1rem;color:rgba(255,255,255,.7);max-width:480px;margin:0 auto 2.2rem;position:relative;z-index:1}
    .btn-white{position:relative;z-index:1;display:inline-flex;align-items:center;gap:.5rem;background:var(--white);color:var(--navy);font-weight:700;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;padding:1rem 2.4rem;border-radius:var(--radius);transition:transform var(--T),box-shadow var(--T)}
    .btn-white:hover{transform:translateY(-3px);box-shadow:0 12px 36px rgba(0,0,0,.25)}

    /* ── CONTACTO ── */
    .contact{background:var(--sand)}
    .contact-grid{display:grid;grid-template-columns:1fr 1.45fr;gap:5rem;align-items:start}
    .cdetails{display:flex;flex-direction:column;gap:1.1rem}
    .cdetail{display:flex;align-items:flex-start;gap:.9rem}
    .cicon{width:38px;height:38px;background:var(--navy);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--white);font-size:.95rem;flex-shrink:0}
    .cdetail strong{display:block;font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--dark);margin-bottom:.15rem}
    .cdetail span{font-size:.88rem;color:var(--grey);line-height:1.5}
    .lead-form{background:var(--white);border-radius:var(--radius);border:1px solid var(--border);padding:2.6rem;box-shadow:0 6px 36px rgba(27,54,114,.08)}
    .lead-form h3{font-family:'Playfair Display',serif;font-weight:700;font-size:1.55rem;color:var(--dark);margin-bottom:.3rem}
    .lead-form .sub{font-size:.84rem;color:var(--grey);margin-bottom:1.5rem;padding-bottom:1.4rem;border-bottom:1px solid var(--border)}

    /* ── FOOTER ── */
    .footer{background:var(--navy-dark);padding:5rem 0 2rem}
    .footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:2.5rem;margin-bottom:3.5rem}
    .footer-brand p{font-size:.84rem;line-height:1.75;color:rgba(255,255,255,.4);max-width:250px;margin:1rem 0 1.4rem}
    .socials{display:flex;gap:.6rem}
    .soc{width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.55);transition:all var(--T);flex-shrink:0}
    .soc:hover{border-color:var(--rouge);color:var(--white);background:var(--rouge)}
    .soc svg{display:block}
    .fcol h5{font-size:.68rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:rgba(255,255,255,.35);margin-bottom:1.2rem}
    .fcol ul{display:flex;flex-direction:column;gap:.65rem}
    .fcol ul a{font-size:.85rem;color:rgba(255,255,255,.6);transition:color var(--T)}
    .fcol ul a:hover{color:var(--rouge)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding-top:1.6rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.5rem}
    .footer-bottom p,.footer-bottom a{font-size:.75rem;color:rgba(255,255,255,.28)}
    .footer-bottom a:hover{color:var(--rouge)}

    /* ── MOBILE ── */
    .mob-menu{display:none;position:fixed;inset:0;background:var(--navy-dark);z-index:999;flex-direction:column;align-items:center;justify-content:center;gap:2rem}
    .mob-menu.open{display:flex}
    .mob-menu a{font-family:'Playfair Display',serif;font-weight:700;font-size:1.7rem;color:var(--white);transition:color var(--T)}
    .mob-menu a:hover{color:var(--rouge)}
    .mob-close{position:absolute;top:1.4rem;right:1.5rem;background:none;border:none;color:var(--white);font-size:1.4rem;cursor:pointer}


    /* ── BRAND QUOTE ── */
    .brand-quote{border-left:3px solid var(--rouge);padding:.6rem 0 .6rem 1.2rem;margin-bottom:1.4rem}
    .brand-quote .bq-name{font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--rouge);margin-bottom:.45rem}
    .brand-quote p{font-family:'Playfair Display',serif;font-size:1.05rem;font-style:italic;line-height:1.65;color:var(--dark);margin:0}

    /* ── TRAYECTORIA / TIMELINE ── */
    .trayectoria{background:var(--sand)}
    .timeline{position:relative;max-width:800px;margin:3rem auto 0;padding-left:2.5rem}
    .timeline::before{content:'';position:absolute;left:.85rem;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--navy),var(--rouge))}
    .tl-item{position:relative;margin-bottom:2.4rem}
    .tl-dot{position:absolute;left:-2.5rem;top:.25rem;width:1.2rem;height:1.2rem;border-radius:50%;background:var(--navy);border:3px solid var(--white);box-shadow:0 0 0 2px var(--navy)}
    .tl-decade{font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--rouge);margin-bottom:.3rem}
    .tl-item h3{font-size:1.02rem;font-weight:700;color:var(--dark);margin-bottom:.4rem}
    .tl-item p{font-size:.88rem;line-height:1.7;color:var(--grey)}
    .tl-item .tl-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.6rem}
    .tl-tag{font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:.2rem .7rem;border-radius:20px;background:rgba(14,36,63,.1);color:var(--navy)}

    /* ═══════════════════════════════
       RESPONSIVE — TABLET (≤1024px)
    ═══════════════════════════════ */

    /* ═══════════════════════════════════════════════
       RESPONSIVE SYSTEM — 4 Breakpoints
       1. ≥1440px  Large desktop / iMac
       2. 1024–1439px  Base (laptop/desktop) — estilos raíz
       3. ≤1023px  Tablet landscape + small laptop
       4. ≤767px   Tablet portrait + mobile
       5. ≤479px   Small mobile (iPhone SE etc.)
    ═══════════════════════════════════════════════ */

    /* ── 1. LARGE DESKTOP ≥1440px ── */
    @media(min-width:1440px){
      .container{max-width:1360px}
      .nav{padding:1.8rem 4rem}
      .nav.scrolled{padding:1.1rem 4rem}
      .hero-content{padding:0 7rem 11rem;max-width:720px}
      .hero-title{font-size:clamp(3.2rem,3.5vw,4rem)}
      .hero-desc{font-size:.98rem;max-width:520px}
      .section{padding:8rem 0}
      .about-img{height:500px}
      .proj-grid{grid-template-rows:320px 320px}
      .sg{grid-template-columns:280px 1fr}
    }

    /* ── 2. MEDIUM DESKTOP / LAPTOP 1024–1439px ── */
    @media(max-width:1439px) and (min-width:1024px){
      .about-grid,.contact-grid{grid-template-columns:1fr;gap:2.5rem}
      .services-grid{grid-template-columns:repeat(2,1fr)}
      .metrics-grid{grid-template-columns:repeat(2,1fr)}
      .testi-grid{grid-template-columns:repeat(2,1fr)}
      .process-steps{grid-template-columns:repeat(3,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .proj-grid{grid-template-columns:1fr 1fr;grid-template-rows:repeat(3,220px)}
      .pc:nth-child(n){grid-column:auto;grid-row:auto}
      .hero-content{padding:0 3rem 7rem;max-width:600px}
    }

    /* ── 3. TABLET LANDSCAPE + SMALL LAPTOP ≤1023px ── */
    @media(max-width:1023px){
      /* Nav — mantener horizontal, escalar */
      .nav{padding:1.1rem 1.8rem}
      .nav.scrolled{padding:.75rem 1.8rem}
      .nav-links{gap:1.1rem}
      .nav-links a{font-size:.65rem;letter-spacing:.1em}
      .nav-cta{padding:.35rem .95rem!important;font-size:.65rem!important}

      /* Hero */
      .hero-content{padding:0 2.5rem 6.5rem;max-width:560px}
      .hero-title{font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.13}
      .hero-desc{font-size:.88rem;max-width:440px;margin-bottom:1.8rem}
      .hero-tagline-band span{font-size:.68rem}
      .hero-btns{gap:.8rem}
      .btn{padding:.65rem 1.5rem;font-size:.72rem}

      /* Trust strip */
      .trust-strip{gap:2rem;padding:1.1rem 2rem}

      /* Layout grids */
      .container{padding:0 2rem}
      .section{padding:5rem 0}
      .about-grid,.contact-grid{grid-template-columns:1fr;gap:2.5rem}
      .about-img{height:420px}
      .services-grid{grid-template-columns:repeat(2,1fr)}
      .services-hd{flex-direction:column;align-items:flex-start;gap:.8rem}
      .metrics-grid{grid-template-columns:repeat(2,1fr)}
      .testi-grid{grid-template-columns:1fr}
      .process-steps{grid-template-columns:repeat(3,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}

      /* Projects */
      .projects-hd{flex-direction:column;align-items:flex-start;gap:.8rem}
      .proj-grid{grid-template-columns:1fr 1fr;grid-template-rows:repeat(3,200px)}
      .pc:nth-child(n){grid-column:auto;grid-row:auto}
      .pc-ov{opacity:1}

      /* Museos featured */
      .mus-grid{grid-template-columns:repeat(2,1fr)}
      .mus-card:nth-child(3){grid-column:1/-1;max-width:calc(50% - .8rem)}

      /* Industrial / Bajío / Timeline */
      .ind-grid{grid-template-columns:repeat(2,1fr)}
      .bajio-grid{grid-template-columns:1fr;gap:2rem}
      .timeline{max-width:100%}

      /* Experiencia por sector */
      .sg{grid-template-columns:190px 1fr;gap:1.5rem 2.5rem}

      /* Pillars */
      .pillars{grid-template-columns:repeat(2,1fr)}

      /* Section title */
      .section-title{font-size:clamp(1.8rem,3.5vw,2.8rem)}
    }

    /* ── 4. TABLET PORTRAIT + MÓVIL ≤767px ── */
    @media(max-width:767px){
      .mus-grid{grid-template-columns:1fr}
      .mus-card:nth-child(3){grid-column:auto;max-width:100%}
      /* Navbar — hamburguesa */
      .nav{padding:.85rem 1.2rem}
      .nav.scrolled{padding:.65rem 1.2rem}
      .nav-links{display:none}
      .nav-toggle{display:flex}
      .logo-zubi{font-size:1.35rem!important}
      .logo-sub1{font-size:.46rem}
      .logo-rule{margin:3px 0 2px}

      /* Hero */
      .hero{min-height:100svh}
      .hero-left-bar{width:3px}
      .hero-geo-circle,.hero-geo-block{display:none}
      .hero-content{padding:0 1.4rem 4.5rem;max-width:100%}
      .hero-title{font-size:clamp(1.55rem,6.5vw,2.3rem);line-height:1.16;margin-bottom:.8rem}
      .hero-tagline-band{padding:.4rem .85rem;margin-bottom:1rem}
      .hero-tagline-band span{font-size:.62rem;letter-spacing:.09em}
      .hero-desc{font-size:.86rem;line-height:1.7;margin-bottom:1.6rem;max-width:100%}
      .hero-btns{flex-direction:column;align-items:flex-start;gap:.55rem}
      .btn{padding:.68rem 1.4rem;font-size:.72rem}
      .hero-scroll{display:none}

      /* Trust strip — scroll horizontal */
      .trust-strip{padding:.9rem 1.2rem;gap:0;overflow-x:auto;flex-wrap:nowrap;
        justify-content:flex-start;-webkit-overflow-scrolling:touch;scrollbar-width:none}
      .trust-strip::-webkit-scrollbar{display:none}
      .trust-item{flex-shrink:0;padding-right:1.4rem;white-space:nowrap}

      /* Layout */
      .container{padding:0 1.2rem}
      .section{padding:3.5rem 0}
      .section-title{font-size:clamp(1.55rem,5.5vw,2rem)}

      /* About */
      .about-grid,.contact-grid{grid-template-columns:1fr;gap:2rem}
      .about-img{height:320px}
      .about-block{width:70px;height:70px;bottom:-1rem;right:-1rem}
      .about-circle{width:55px;height:55px;top:-1rem;left:-1rem}
      .heritage-badge .big{font-size:1.4rem}
      .pillars{grid-template-columns:1fr}

      /* Metrics */
      .metrics-grid{grid-template-columns:1fr 1fr}
      .metric{padding:1.8rem .8rem}
      .metric-num{font-size:2.4rem}

      /* Services */
      .services-grid{grid-template-columns:1fr}
      .services-hd{flex-direction:column;align-items:flex-start;gap:.8rem}
      .svc-card{padding:1.6rem 1.2rem 1.4rem}

      /* Projects */
      .projects-hd{flex-direction:column;align-items:flex-start;gap:.8rem}
      .proj-grid{grid-template-columns:1fr;grid-template-rows:auto}
      .pc{height:200px}
      .pc-ov{opacity:1!important}

      /* Process */
      .process-steps{grid-template-columns:1fr;gap:1.4rem}
      .process-steps::after{display:none}
      .pstep{padding:0}
      .pstep-dot{margin-bottom:.8rem}

      /* Industrial */
      .ind-grid{grid-template-columns:1fr}
      .ind-heritage{padding:1.2rem 1.4rem}

      /* Bajío */
      .bajio-grid{grid-template-columns:1fr;gap:1.8rem}

      /* Timeline */
      .timeline{padding-left:2rem}
      .tl-dot{left:-2.05rem}

      /* Testimonials / Trayectoria */
      .testi-grid{grid-template-columns:1fr}
      .cform-wrap{padding:1.4rem}
      .frow{grid-template-columns:1fr}

      /* CTA band */
      .cta-band{padding:3.5rem 1.4rem}
      .cta-band h2{font-size:1.45rem}
      .cta-band p{font-size:.88rem;margin-bottom:1.4rem}

      /* Contacto */
      .lead-form{padding:1.4rem}
      .cdetails{gap:.8rem}

      /* Footer */
      .footer{padding:3rem 0 1.5rem}
      .footer-grid{grid-template-columns:1fr;gap:1.6rem}
      .footer-bottom{flex-direction:column;gap:.4rem;text-align:center}

      /* Experiencia por sector — tablet portrait */
      .sg{grid-template-columns:1fr;gap:1rem;padding:2rem 0}
      .logo-grid{gap:.5rem}
      .lph{flex:0 0 calc(33.333% - .37rem)}
      .lph span{white-space:normal;text-align:center;line-height:1.3}
    }

    /* ── 5. SMALL MOBILE ≤479px ── */
    @media(max-width:479px){
      .nav{padding:.75rem 1rem}
      .logo-zubi{font-size:1.2rem!important}
      .logo-sub1{font-size:.42rem}
      .hero-content{padding:0 1.1rem 4rem}
      .hero-title{font-size:clamp(1.4rem,7vw,1.9rem)}
      .hero-desc{font-size:.83rem}
      .section-title{font-size:1.55rem}
      .metrics-grid{grid-template-columns:1fr 1fr}
      .metric-num{font-size:2rem}
      .filter-row{gap:.35rem}
      .filt{font-size:.6rem;padding:.3rem .75rem}
      .pc{height:180px}
      .svc-card{padding:1.4rem 1.1rem}
      .lead-form,.cform-wrap{padding:1.2rem}
      .ind-card{padding:1.4rem 1.2rem}
      .trust-strip{padding:.8rem 1rem}

      /* Experiencia por sector — small mobile */
      .lph{flex:0 0 calc(50% - .28rem)}
      .exp-sector{padding:4rem 0 3.5rem}
    }