:root{
  --bg:#0d1117;
  --bg-2:#111827;
  --text:#111827;
  --muted:#687386;
  --light:#f7f8fa;
  --white:#ffffff;
  --line:#e5e7eb;
  --blue:#0f4fa8;
  --blue-dark:#0b3778;
  --gold:#c8a76c;
  --shadow:0 28px 70px rgba(15,23,42,.14);
  --radius:28px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter',Arial,sans-serif;
  color:var(--text);
  background:var(--white);
  overflow-x:hidden;
}
body.menu-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit}

.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  padding:18px 34px;
  transition:.3s ease;
}
.site-header.scrolled{
  padding:10px 28px;
  background:rgba(10,14,22,.92);
  backdrop-filter:blur(18px);
  box-shadow:0 18px 40px rgba(0,0,0,.2);
}
.header-inner{
  max-width:1220px;
  margin:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;color:#fff;min-width:215px}
.brand-mark{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue),#0a2d62);
  color:#fff;font-weight:900;font-size:24px;
  box-shadow:0 12px 30px rgba(15,79,168,.35);
}
.brand-text strong{display:block;font-size:18px;letter-spacing:.22em;line-height:1}
.brand-text small{display:block;margin-top:5px;font-size:10px;text-transform:uppercase;letter-spacing:.12em;opacity:.76}
.main-nav{display:flex;align-items:center;gap:34px;color:#fff;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.main-nav a{opacity:.84;position:relative;transition:.25s}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;background:var(--gold);transition:.25s
}
.main-nav a:hover{opacity:1}
.main-nav a:hover::after{width:100%}
.header-cta{
  color:#fff;
  border:1px solid rgba(255,255,255,.28);
  padding:13px 22px;border-radius:999px;font-weight:800;font-size:13px;text-transform:uppercase;letter-spacing:.08em;
  transition:.25s;background:rgba(255,255,255,.08)
}
.header-cta:hover{background:#fff;color:var(--bg)}
.nav-toggle{display:none;background:transparent;border:0;width:44px;height:44px;gap:5px;flex-direction:column;justify-content:center;align-items:center;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;border-radius:999px;transition:.25s}

.hero{
  min-height:100vh;
  position:relative;
  display:flex;
  align-items:center;
  padding:160px 34px 90px;
  overflow:hidden;
  background:var(--bg);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('../img/remodelacion.jpeg');
  background-size:cover;
  background-position:center;
  transform:scale(1.04);
  animation:heroZoom 18s ease-in-out infinite alternate;
}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,8,13,.88),rgba(6,11,19,.58) 52%,rgba(6,10,15,.28));}
.hero::after{
  content:"";position:absolute;right:-190px;bottom:-260px;width:620px;height:620px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);backdrop-filter:blur(4px)
}
.hero-content{position:relative;z-index:2;max-width:1040px;margin:0 auto;width:100%;color:#fff}
.eyebrow,.section-kicker{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--gold);font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.18em;margin:0 0 18px
}
.eyebrow::before,.section-kicker::before{content:"";width:42px;height:1px;background:currentColor;opacity:.75}
.hero h1{font-size:clamp(44px,7.4vw,102px);line-height:.93;letter-spacing:-.07em;margin:0 0 28px;max-width:980px;font-weight:900}
.hero-lead{font-size:clamp(18px,2vw,24px);line-height:1.55;max-width:690px;color:rgba(255,255,255,.82);margin:0 0 38px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:16px 26px;font-weight:900;text-transform:uppercase;letter-spacing:.08em;font-size:13px;transition:.25s;border:1px solid transparent}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 18px 40px rgba(15,79,168,.34)}
.btn-primary:hover{background:#fff;color:var(--bg)}
.btn-secondary{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.08)}
.btn-secondary:hover{background:#fff;color:var(--bg)}
.btn-light{background:#fff;color:var(--bg);box-shadow:0 20px 45px rgba(0,0,0,.18)}
.btn-light:hover{transform:translateY(-3px)}
.hero-card{
  position:absolute;right:clamp(20px,7vw,120px);bottom:80px;z-index:3;
  width:min(330px,calc(100% - 40px));
  padding:26px;border-radius:24px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(18px);
  color:#fff;box-shadow:0 20px 70px rgba(0,0,0,.32)
}
.hero-card span{display:block;color:var(--gold);font-size:12px;text-transform:uppercase;letter-spacing:.16em;font-weight:900;margin-bottom:12px}
.hero-card strong{display:block;font-size:22px;line-height:1.2}
@keyframes heroZoom{to{transform:scale(1.12)}}

.stats{
  max-width:1180px;margin:-48px auto 0;position:relative;z-index:5;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:var(--line)
}
.stats article{background:#fff;padding:30px;text-align:center}
.stats strong{display:block;font-size:31px;color:var(--blue);line-height:1;font-weight:900;letter-spacing:-.04em}
.stats span{display:block;margin-top:10px;color:var(--muted);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.08em}

.section{padding:110px 34px}
.section-grid,.section-heading,.project-heading,.contact-card{max-width:1180px;margin:auto}
.section-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.section h2,.cta-band h2{font-size:clamp(34px,5vw,62px);line-height:1.02;letter-spacing:-.055em;margin:0 0 24px;font-weight:900;color:var(--text)}
.section-copy p:not(.section-kicker),.section-heading p:not(.section-kicker),.cta-band p{font-size:17px;line-height:1.8;color:var(--muted);margin:0 0 18px}
.about-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.about-list span{padding:12px 16px;border:1px solid var(--line);border-radius:999px;color:#111827;font-weight:800;background:#fff}
.image-stack{position:relative;min-height:540px}
.image-stack-main{width:82%;height:520px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
.image-stack-small{position:absolute;right:0;bottom:0;width:45%;height:270px;object-fit:cover;border-radius:24px;border:10px solid #fff;box-shadow:0 20px 55px rgba(15,23,42,.2)}

.services,.projects{background:var(--light)}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:48px}
.section-heading h2{max-width:680px;margin-bottom:0}
.section-heading p:not(.section-kicker){max-width:450px;margin-bottom:0}
.service-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service-card{background:#fff;border-radius:26px;overflow:hidden;box-shadow:0 16px 45px rgba(15,23,42,.08);transition:.28s;border:1px solid rgba(229,231,235,.8)}
.service-card:hover{transform:translateY(-8px);box-shadow:0 30px 70px rgba(15,23,42,.14)}
.service-card img{width:100%;height:230px;object-fit:cover}
.service-card div{padding:26px}
.service-card span,.process-card span{display:block;color:var(--gold);font-weight:900;font-size:12px;letter-spacing:.18em;margin-bottom:14px}
.service-card h3,.process-card h3,.project-info h3{font-size:22px;margin:0 0 12px;line-height:1.18;letter-spacing:-.03em}
.service-card p,.process-card p,.project-info p{margin:0;color:var(--muted);line-height:1.65}

.process{background:#fff}
.process-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.process-card{padding:32px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,#fff,#fafafa)}

.project-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.project-card{background:#fff;border-radius:28px;overflow:hidden;box-shadow:0 16px 45px rgba(15,23,42,.08);border:1px solid rgba(229,231,235,.9)}
.project-image{width:100%;border:0;padding:0;background:transparent;cursor:pointer;display:block;overflow:hidden}
.project-image img{width:100%;height:320px;object-fit:cover;transition:.45s}
.project-card:hover .project-image img{transform:scale(1.08)}
.project-info{padding:26px}
.project-info span{display:block;color:var(--blue);text-transform:uppercase;letter-spacing:.14em;font-size:11px;font-weight:900;margin-bottom:12px}

.cta-band{
  margin:0 auto;
  padding:90px 34px;
  background:linear-gradient(135deg,var(--blue-dark),var(--blue));
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px
}
.cta-band > div,.cta-band > a{max-width:1180px}
.cta-band h2{color:#fff;max-width:850px;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.8);font-size:18px;margin:0}
.cta-band .section-kicker{color:#fff;opacity:.8}

.contact{background:#0d1117;color:#fff}
.contact-card{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center;background:#151b25;border:1px solid rgba(255,255,255,.08);border-radius:32px;padding:54px;box-shadow:0 30px 80px rgba(0,0,0,.3)}
.contact h2{color:#fff}
.contact p:not(.section-kicker){color:rgba(255,255,255,.7);font-size:17px;line-height:1.8}
.contact-list{display:grid;gap:14px}
.contact-list a,.contact-list div{display:block;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:22px;transition:.25s}
.contact-list a:hover{background:#fff;color:var(--bg);transform:translateX(4px)}
.contact-list span{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.16em;color:var(--gold);font-weight:900;margin-bottom:8px}
.contact-list strong{font-size:17px;line-height:1.45;word-break:break-word}

.site-footer{padding:34px;display:flex;justify-content:space-between;align-items:center;gap:20px;background:#080b10;color:#fff}
.site-footer div{display:flex;flex-direction:column;gap:4px}
.site-footer strong{letter-spacing:.22em;font-weight:900}
.site-footer span,.site-footer p{color:rgba(255,255,255,.62);margin:0}
.whatsapp{
  position:fixed;right:24px;bottom:24px;width:62px;height:62px;border-radius:50%;z-index:900;
  background:#25d366;color:#fff;display:grid;place-items:center;font-weight:900;font-size:24px;
  box-shadow:0 18px 45px rgba(37,211,102,.34);transition:.25s
}
.whatsapp:hover{transform:translateY(-4px) scale(1.03)}

.lightbox{position:fixed;inset:0;z-index:2000;background:rgba(4,6,10,.92);display:none;align-items:center;justify-content:center;padding:70px 24px;color:#fff}
.lightbox.active{display:flex}
.lightbox img{max-width:min(1040px,92vw);max-height:76vh;object-fit:contain;border-radius:18px;box-shadow:0 30px 90px rgba(0,0,0,.45)}
.lightbox-close,.lightbox-prev,.lightbox-next{position:absolute;border:0;background:rgba(255,255,255,.12);color:#fff;border-radius:999px;cursor:pointer;transition:.25s}
.lightbox-close{top:24px;right:24px;width:46px;height:46px;font-size:32px;line-height:1}
.lightbox-prev,.lightbox-next{top:50%;transform:translateY(-50%);width:54px;height:54px;font-size:46px;line-height:.8}
.lightbox-prev{left:24px}.lightbox-next{right:24px}
.lightbox-close:hover,.lightbox-prev:hover,.lightbox-next:hover{background:#fff;color:#080b10}
.lightbox-caption{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);margin:0;color:rgba(255,255,255,.82);font-weight:700;text-align:center}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

@media (max-width:1050px){
  .service-grid,.process-grid{grid-template-columns:repeat(2,1fr)}
  .project-grid{grid-template-columns:repeat(2,1fr)}
  .hero-card{position:relative;right:auto;bottom:auto;margin:40px auto 0;z-index:3}
  .hero{display:block;padding-top:150px}
  .stats{grid-template-columns:repeat(2,1fr);margin-left:24px;margin-right:24px}
  .section-grid,.contact-card{grid-template-columns:1fr}
  .section-heading{display:block}
  .section-heading p:not(.section-kicker){margin-top:18px}
  .cta-band{display:block;text-align:left}
  .cta-band .btn{margin-top:28px}
}

@media (max-width:860px){
  .site-header{padding:12px 16px}
  .header-cta{display:none}
  .nav-toggle{display:flex;position:relative;z-index:1002}
  .main-nav{
    position:fixed;inset:0;background:rgba(8,11,16,.98);z-index:1001;
    flex-direction:column;align-items:center;justify-content:center;gap:28px;font-size:18px;
    opacity:0;visibility:hidden;pointer-events:none;transition:.25s
  }
  .main-nav.open{opacity:1;visibility:visible;pointer-events:auto}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .brand{min-width:0}
  .brand-text small{display:none}
  .hero{padding:130px 18px 70px}
  .hero h1{letter-spacing:-.055em}
  .section{padding:82px 18px}
  .service-grid,.process-grid,.project-grid{grid-template-columns:1fr}
  .image-stack{min-height:auto}.image-stack-main{width:100%;height:420px}.image-stack-small{position:relative;width:72%;height:230px;margin:-90px 0 0 auto}
  .contact-card{padding:32px 22px;border-radius:24px}
  .site-footer{display:block;text-align:center}.site-footer p{margin-top:18px}
}

@media (max-width:560px){
  .stats{grid-template-columns:1fr;margin-top:0;border-radius:0;margin-left:0;margin-right:0}
  .stats article{padding:24px}
  .hero-actions .btn{width:100%}
  .hero-card{width:100%;padding:22px}
  .section h2,.cta-band h2{font-size:36px}
  .project-image img{height:260px}
  .service-card img{height:220px}
  .lightbox-prev,.lightbox-next{top:auto;bottom:86px;transform:none}.lightbox-prev{left:calc(50% - 68px)}.lightbox-next{right:calc(50% - 68px)}
}