@import url("https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,500;1,600&display=swap");

:root {
  --accent: #1B75BB;          /* Azul SAW claro */
  --accent-hover: #1A82CF;
  --accent-deep: #13416F;     /* Azul SAW profundo */
  --page-bg: #EAF3F8;         /* Fondo base azul tenue premium */
  --section-alt: #DDEAF2;     /* Sección alterna azul suave */
  --aluminio: #D9E2E8;        /* Gris aluminio */
  --ink: #0B1117;             /* Negro técnico */
  --muted: #5B6B78;
  --title-font: "Playfair Display", Georgia, serif;
  --label-font: "Playfair Display", Georgia, serif;
  --body-font: "Playfair Display", Georgia, serif;
  --maxw: 1280px;
  --radius: 10px;
}

/* ========================================================
   SAW Ventanas & Estructuras — Landing premium
   Estilo: premium accesible arquitectónico
   Paleta: #1B75BB azul claro, #13416F azul profundo
   Basado en el diseño aprobado de Claude Design
   ======================================================== */

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--body-font);
  background:var(--page-bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
img{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--accent);color:#fff}
section[id]{scroll-margin-top:96px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ---- shared editorial atoms ---- */
.eyebrow{display:inline-flex;align-items:center;gap:12px;margin-bottom:22px}
.eyebrow .rule{width:30px;height:1px;background:var(--accent)}
.eyebrow span:last-child{
  font-family:var(--label-font);font-size:12.5px;letter-spacing:.3em;
  text-transform:uppercase;color:var(--accent)
}
.eyebrow.center{justify-content:center}
.eyebrow.light .rule{background:rgba(217,226,232,.7)}
.eyebrow.light span{color:rgba(217,226,232,.8)}

.h-title{
  margin:0;font-family:var(--title-font);font-weight:500;
  font-size:clamp(32px,3.6vw,52px);line-height:1.06;letter-spacing:-.01em;color:var(--ink)
}
.lead{font-size:17px;line-height:1.64;color:var(--muted)}

/* ---- reveal animation base ---- */
[data-reveal]{opacity:0;transform:translateY(24px);will-change:opacity,transform}
[data-reveal].is-in{opacity:1;transform:none;
  transition:opacity .78s cubic-bezier(.22,1,.36,1),transform .78s cubic-bezier(.22,1,.36,1)}
.scroll-progress{
  position:fixed;top:0;left:0;right:0;z-index:1300;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  pointer-events:none;box-shadow:0 0 12px rgba(27,117,187,.28)
}
.glass-scan{position:relative;overflow:hidden}
@media (min-width:681px){
  .glass-scan::after{
    content:"";position:absolute;inset:-35% -70%;z-index:2;pointer-events:none;
    background:linear-gradient(115deg,transparent 42%,rgba(255,255,255,.22) 48%,rgba(255,255,255,.06) 53%,transparent 60%);
    transform:translateX(-55%) rotate(0.001deg);
    animation:glassScan 10s cubic-bezier(.22,1,.36,1) infinite;
    mix-blend-mode:screen
  }
}
@keyframes glassScan{
  0%,22%{transform:translateX(-58%)}
  62%,100%{transform:translateX(58%)}
}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
  .scroll-progress{display:none}
  .glass-scan::after{display:none!important}
  html{scroll-behavior:auto}
}

/* ===================== HEADER ===================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  -webkit-backdrop-filter:saturate(160%) blur(16px);backdrop-filter:saturate(160%) blur(16px);
  background:rgba(255,255,255,.68);
  transition:background .4s ease,box-shadow .4s ease,transform .4s cubic-bezier(.2,.7,.2,1)
}
.site-header.hidden{transform:translateY(-100%)}
.site-header.scrolled{background:rgba(255,255,255,.94);box-shadow:0 4px 20px rgba(19,65,111,.06)}
.header-inner{
  max-width:1320px;margin:0 auto;padding:22px 40px;
  display:flex;align-items:center;gap:40px;transition:padding .4s ease
}
.site-header.scrolled .header-inner{padding:12px 40px}
.brand{display:flex;align-items:center;flex:none}
.brand img{height:72px;width:auto;transition:height .4s ease}
.site-header.scrolled .brand img{height:52px}
.h-sep{width:1px;height:28px;background:rgba(19,65,111,.14);flex:none}
.nav{display:flex;align-items:center;gap:36px;flex:1}
.nav a{
  font-family:var(--label-font);font-size:13px;letter-spacing:.18em;text-transform:uppercase;
  text-decoration:none;color:var(--ink);opacity:.72;transition:opacity .25s,color .25s
}
.nav a:hover{opacity:1;color:var(--accent)}
.h-actions{display:flex;align-items:center;gap:18px;flex:none}
.ig-icon{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:9px;
  color:var(--accent-deep);text-decoration:none;opacity:.95;overflow:hidden;background:rgba(255,255,255,.82);
  box-shadow:0 8px 22px rgba(19,65,111,.12),inset 0 1px 0 rgba(255,255,255,.72);
  transition:opacity .25s,background .25s,transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,filter .28s ease
}
.ig-icon img{width:36px;height:36px;object-fit:contain;border-radius:7px}
.ig-icon:hover{
  opacity:1;background:#fff;transform:translateY(-2px);
  filter:saturate(1.08) brightness(1.03);
  box-shadow:0 13px 30px rgba(19,65,111,.18),0 0 18px rgba(27,117,187,.10),inset 0 1px 0 rgba(255,255,255,.9)
}
.header-line{height:1px;background:linear-gradient(90deg,transparent 0%,rgba(19,65,111,.10) 15%,rgba(19,65,111,.10) 85%,transparent 100%)}

/* buttons */
.btn{
  position:relative;display:inline-flex;align-items:center;gap:9px;text-decoration:none;border-radius:5px;
  font-weight:600;letter-spacing:.01em;cursor:pointer;border:none;
  overflow:hidden;isolation:isolate;
  transition:transform .3s cubic-bezier(.22,1,.36,1),box-shadow .3s ease,background .3s ease,border-color .3s ease,filter .3s ease
}
.btn::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(115deg,transparent 0%,rgba(255,255,255,.16) 38%,rgba(255,255,255,.36) 48%,rgba(255,255,255,.08) 58%,transparent 100%);
  transform:translateX(-120%);transition:transform .7s cubic-bezier(.22,1,.36,1)
}
.btn:hover::after{transform:translateX(120%)}
.btn svg,.btn img{position:relative;z-index:1;flex:none}
.btn-ig-img{width:18px;height:18px;object-fit:contain;border-radius:4px;box-shadow:0 2px 7px rgba(0,0,0,.14)}
.btn img,
.cta-btn img,
.instagram-btn img,
.site-header a:not(.brand) img{
  width:22px;
  height:22px;
  object-fit:contain;
  display:inline-block
}
.header-instagram img,
.instagram-header img,
.site-header a.header-instagram img,
.site-header a.instagram-header img{
  width:38px;
  height:38px;
  border-radius:10px
}
.header-cta{animation:sawWaPulse 6.4s ease-in-out infinite}
@keyframes sawWaPulse{
  0%,72%,100%{box-shadow:0 6px 18px rgba(27,117,187,.30),0 2px 6px rgba(27,117,187,.14)}
  82%{box-shadow:0 8px 24px rgba(27,117,187,.34),0 0 0 5px rgba(27,117,187,.08)}
  90%{box-shadow:0 6px 18px rgba(27,117,187,.30),0 0 0 0 rgba(27,117,187,0)}
}
.btn-primary{
  padding:16px 28px;background:var(--accent);color:#fff;font-size:15.5px;
  box-shadow:0 8px 24px rgba(27,117,187,.32),0 2px 7px rgba(27,117,187,.16),inset 0 1px 0 rgba(255,255,255,.22)
}
.btn-primary:hover{transform:translateY(-3px);background:var(--accent-hover);
  box-shadow:0 18px 44px rgba(27,117,187,.40),0 0 24px rgba(27,117,187,.16),0 4px 12px rgba(27,117,187,.18)}
.btn-ghost{
  padding:16px 26px;border:1.5px solid rgba(19,65,111,.22);color:var(--accent-deep);
  background:rgba(27,117,187,.02);font-size:15px;font-weight:500
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--accent);
  background:rgba(27,117,187,.06);box-shadow:0 8px 22px rgba(19,65,111,.09)}
.btn-sm{
  padding:13px 22px;font-family:var(--label-font);font-size:13px;font-weight:400;
  letter-spacing:.1em;text-transform:uppercase
}

/* hamburger (mobile) */
.nav-toggle{display:none;background:none;border:none;cursor:pointer;width:42px;height:42px;
  align-items:center;justify-content:center;color:var(--accent-deep)}
.nav-toggle svg{width:26px;height:26px}

/* ===================== HERO ===================== */
.hero{padding:172px 0 96px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center}
.hero-copy{position:relative;z-index:3}
.hero h1{
  margin:0 0 26px;font-family:var(--title-font);font-weight:500;
  font-size:clamp(46px,5.6vw,84px);line-height:1.0;letter-spacing:-.01em;color:var(--ink)
}
.hero h1 .em{color:var(--accent-deep);font-style:italic}
.hero-sub{margin:0 0 36px;max-width:520px;font-size:17.5px;line-height:1.62;color:var(--muted)}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}

.hero-visual{position:relative;min-height:600px}
.hero-cefe{
  position:relative;z-index:1;width:84%;margin-left:auto;aspect-ratio:4/5;
  border-radius:8px;overflow:hidden;box-shadow:0 40px 90px rgba(11,17,23,.20)
}
.hero-cefe img{width:100%;height:108%;margin-top:-6%;object-fit:cover;object-position:center}
.img-tag{
  position:absolute;left:18px;bottom:16px;display:flex;align-items:center;gap:9px;
  padding:8px 13px;background:rgba(11,17,23,.46);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:4px
}
.img-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.img-tag span:last-child{font-family:var(--label-font);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:#fff}
.hero-air{
  position:absolute;z-index:2;left:-6px;bottom:18px;width:46%;border-radius:7px;overflow:hidden;
  background:#fff;padding:6px;box-shadow:0 26px 56px rgba(11,17,23,.22)
}
.hero-air .air-photo{border-radius:4px;overflow:hidden;aspect-ratio:16/11}
.hero-air .air-photo img{width:100%;height:100%;object-fit:cover}
.hero-air .meta{padding:9px 6px 5px;display:flex;align-items:center;justify-content:space-between}
.hero-air .meta b{font-family:var(--label-font);font-size:11px;font-weight:400;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep)}
.hero-air .meta i{font-size:10.5px;font-style:normal;color:var(--accent)}

/* 3D technical module */
.mod3d{position:absolute;z-index:3;top:-26px;right:-30px}
.mod3d-float{animation:sawFloat 6s ease-in-out infinite;perspective:1000px}
.mod3d-card{
  transform-style:preserve-3d;transition:transform .25s ease-out;width:172px;height:236px;position:relative;
  will-change:transform;
  border-radius:8px;border:6px solid #c9d6df;
  background:linear-gradient(140deg,rgba(27,117,187,.42),rgba(19,65,111,.58));
  box-shadow:0 30px 60px rgba(19,65,111,.30);overflow:hidden
}
.mod3d-card .frame{position:absolute;inset:10px;border:1px solid rgba(255,255,255,.35)}
.mod3d-card .mull-v{position:absolute;left:50%;top:10px;bottom:10px;width:2px;background:rgba(220,230,238,.55)}
.mod3d-card .mull-h1{position:absolute;top:38%;left:10px;right:10px;height:2px;background:rgba(220,230,238,.55)}
.mod3d-card .mull-h2{position:absolute;top:68%;left:10px;right:10px;height:2px;background:rgba(220,230,238,.45)}
.mod3d-card .sheen{position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,255,255,0) 30%,rgba(255,255,255,.22) 48%,rgba(255,255,255,0) 66%)}
.mod3d-card .badge{position:absolute;left:0;right:0;bottom:0;padding:10px;background:rgba(11,17,23,.5)}
.mod3d-card .badge b{display:block;font-family:var(--label-font);font-size:9px;font-weight:400;letter-spacing:.16em;color:#dbe7f1}
.mod3d-card .badge small{display:block;margin-top:2px;font-size:8px;letter-spacing:.06em;color:rgba(217,226,232,.85)}

@keyframes sawFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
@keyframes sawMarquee{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-50%,0,0)}
}

/* ===================== SECTION SHELL ===================== */
.section{padding:112px 0}
.section.alt{background:var(--section-alt)}

/* ---- Autoridad ---- */
.aut-grid{display:grid;grid-template-columns:1fr .92fr;gap:64px;align-items:start}
.aut-grid h2{max-width:14ch}
.aut-body{padding-top:8px}
.aut-quote{border-left:2px solid var(--accent);padding-left:22px;margin-bottom:34px}
.aut-quote p{margin:0;font-size:18px;line-height:1.68;color:var(--ink);opacity:.78}
.chips{display:flex;flex-wrap:wrap;gap:11px}
.chip{
  padding:11px 22px;background:linear-gradient(145deg,#fff 0%,#f2f6fa 100%);
  border:1px solid rgba(27,117,187,.18);border-radius:40px;font-size:12px;font-family:var(--label-font);
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep);
  box-shadow:0 3px 12px rgba(19,65,111,.05);cursor:default;
  transition:transform .28s,box-shadow .28s,background .28s,color .28s,border-color .28s
}
.chip:hover{transform:translateY(-2px) scale(1.04);color:#fff;background:var(--accent);
  border-color:var(--accent);box-shadow:0 8px 22px rgba(27,117,187,.20)}

/* ---- Servicios ---- */
.sec-head{max-width:680px;margin-bottom:56px}
.svc-grid{display:flex;flex-wrap:wrap;gap:22px;justify-content:center}
.svc{
  flex:0 0 calc(33.33% - 15px);background:#fff;border-top:2px solid var(--accent);border-radius:var(--radius);
  padding:34px 30px;box-shadow:0 8px 28px rgba(19,65,111,.06),0 1px 0 rgba(19,65,111,.06);
  transition:transform .3s ease,box-shadow .3s ease
}
.svc:hover{transform:translateY(-5px);box-shadow:0 18px 46px rgba(19,65,111,.13)}
.svc .ic{
  width:50px;height:50px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  margin-bottom:24px;color:var(--accent);
  background:linear-gradient(145deg,rgba(27,117,187,.10),rgba(19,65,111,.06))
}
.svc h3{margin:0 0 10px;font-family:var(--label-font);font-size:21px;color:var(--ink);letter-spacing:.01em}
.svc p{margin:0;font-size:14.5px;line-height:1.62;color:var(--muted)}

/* ---- Fachadas ---- */
.fac-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:center}
.fac-copy h2{margin:0 0 22px}
.fac-copy .lead{margin:0 0 30px;max-width:480px;font-size:17px}
.fac-chips{display:flex;flex-wrap:wrap;gap:8px;max-width:480px}
.fchip{
  padding:8px 15px;background:#fff;border:1px solid rgba(19,65,111,.16);border-radius:5px;
  font-size:13px;color:var(--accent-deep);
  opacity:0;transform:translateX(-18px);transition:opacity .5s ease,transform .5s cubic-bezier(.16,.84,.44,1)
}
.fchip.is-in{opacity:1;transform:none}
.fac-visual{position:relative}
.fac-photo{
  position:relative;aspect-ratio:5/4;border-radius:var(--radius);overflow:hidden;background:#0B1117;
  box-shadow:0 30px 70px rgba(11,17,23,.20)
}
.fac-photo img{width:100%;height:100%;object-fit:cover}
.fac-photo .ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,17,23,0) 45%,rgba(11,17,23,.55))}
.fac-photo .cap{position:absolute;left:22px;bottom:20px;font-family:var(--label-font);
  font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:rgba(217,226,232,.92)}
.fac-detail{
  position:absolute;right:-22px;bottom:-26px;width:166px;background:#fff;border-radius:8px;
  box-shadow:0 22px 48px rgba(19,65,111,.24);padding:16px 18px;perspective:900px;
  transform-style:preserve-3d;transition:transform .25s ease-out;will-change:transform
}
.fac-detail .lbl{font-family:var(--label-font);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:12px}
.fac-detail .profile{display:flex;align-items:center;gap:6px}
.fac-detail .profile i{display:block;border-radius:2px}
.fac-detail .p1{width:14px;height:46px;border:2px solid var(--accent)}
.fac-detail .p2{width:8px;height:46px;background:rgba(27,117,187,.35);border-radius:1px}
.fac-detail .p3{width:14px;height:46px;border:2px solid var(--accent-deep)}
.fac-detail .t1{display:block;margin-top:10px;font-size:9px;color:var(--accent-deep);font-weight:600}
.fac-detail .t2{display:block;font-size:8.5px;color:var(--muted)}

/* ---- Proyectos destacados ---- */
.proj-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.proj{
  position:relative;border-radius:var(--radius);overflow:hidden;text-decoration:none;display:block;
  transition:transform .35s cubic-bezier(.22,1,.36,1),box-shadow .35s ease
}
.proj::before,.pcard::before{
  content:"";position:absolute;left:0;right:0;bottom:0;z-index:4;height:2px;
  background:linear-gradient(90deg,var(--accent),rgba(217,226,232,.65));
  transform:scaleX(0);transform-origin:left center;
  transition:transform .35s cubic-bezier(.22,1,.36,1)
}
.proj:hover{transform:translateY(-4px);box-shadow:0 18px 42px rgba(19,65,111,.17)}
.proj:hover::before,.pcard:hover::before{transform:scaleX(1)}
.proj img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.22,1,.36,1)}
.proj:hover img{transform:scale(1.035)}
.proj.big{grid-column:span 3;aspect-ratio:16/12}
.proj.big img{height:108%;margin-top:-6%}
.proj.small{grid-column:span 2;aspect-ratio:4/3}
.proj .ov{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:24px;
  background:linear-gradient(180deg,rgba(11,17,23,0) 40%,rgba(11,17,23,.78));
  z-index:3;transition:background .35s ease
}
.proj:hover .ov{background:linear-gradient(180deg,rgba(11,17,23,.10) 22%,rgba(11,17,23,.84))}
.proj .cat{font-family:var(--label-font);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:rgba(217,226,232,.85)}
.proj .name{margin:6px 0 0;font-family:var(--title-font);font-weight:500;font-size:24px;color:#fff}
.proj .desc{margin:8px 0 0;max-height:0;overflow:hidden;opacity:0;font-size:13.5px;line-height:1.5;
  color:rgba(217,226,232,.92);transition:max-height .35s ease,opacity .35s ease,margin .35s ease}
.proj:hover .desc{max-height:80px;opacity:1}
.proj-bridge{
  grid-column:span 2;aspect-ratio:4/3;border-radius:var(--radius);border:1px solid rgba(19,65,111,.14);
  background:linear-gradient(180deg,rgba(27,117,187,.10),#f4f7fa);padding:26px;display:flex;flex-direction:column;
  justify-content:space-between;box-shadow:0 14px 34px rgba(19,65,111,.07)
}
.proj-bridge .k{font-family:var(--label-font);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
.proj-bridge p{margin:0 0 14px;font-family:var(--title-font);font-weight:500;font-size:21px;line-height:1.2;color:var(--ink)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent);text-decoration:none}
.link-arrow svg{transition:transform .25s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---- Portafolio ---- */
.port-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pcard{
  position:relative;border-radius:var(--radius);overflow:hidden;background:#0B1117;aspect-ratio:4/3;
  box-shadow:0 8px 28px rgba(19,65,111,.07);
  transition:transform .35s cubic-bezier(.22,1,.36,1),box-shadow .35s ease
}
.pcard:hover{transform:translateY(-4px);box-shadow:0 18px 46px rgba(19,65,111,.16)}
.pcard img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.22,1,.36,1)}
.pcard:hover img{transform:scale(1.035)}
.pcard .ov{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;
  background:linear-gradient(180deg,rgba(11,17,23,0) 42%,rgba(11,17,23,.80));z-index:3;
  transition:background .35s ease}
.pcard:hover .ov{background:linear-gradient(180deg,rgba(11,17,23,.12) 20%,rgba(11,17,23,.86))}
.pcard .cat{font-family:var(--label-font);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
.pcard .name{margin:6px 0 4px;font-family:var(--title-font);font-weight:500;font-size:20px;color:#fff}
.pcard .place{font-size:12.5px;color:rgba(217,226,232,.82)}
.proj .ov,
.proj .ov .cat,
.proj .ov .name,
.proj .ov .desc,
.proj .ov .place,
.pcard .ov,
.pcard .ov .cat,
.pcard .ov .name,
.pcard .ov .place{
  color:#fff;
  text-shadow:0 1px 3px rgba(0,0,0,.72),0 3px 12px rgba(0,0,0,.42)
}

/* ---- Proceso ---- */
.stepper{position:relative;padding-top:22px}
.stepper .track{position:absolute;left:20px;right:20px;top:43px;height:1px;background:rgba(19,65,111,.14)}
.stepper .fill{position:absolute;left:20px;top:43px;height:1px;width:0%;background:var(--accent);transition:width .12s linear}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;position:relative}
.step{opacity:0;transform:translateY(12px)}
.step.is-in{opacity:1;transform:none;transition:opacity .45s cubic-bezier(.16,.84,.44,1),transform .45s cubic-bezier(.16,.84,.44,1)}
.step .num{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1.5px solid rgba(19,65,111,.22);
  display:flex;align-items:center;justify-content:center;font-family:var(--label-font);font-size:15px;
  letter-spacing:.06em;color:var(--accent);margin-bottom:22px;box-shadow:0 2px 8px rgba(19,65,111,.06);
  transition:border-color .4s ease,box-shadow .4s ease,background .4s ease,color .4s ease
}
.step.is-in .num{border-color:var(--accent);box-shadow:0 4px 14px rgba(27,117,187,.14)}
.step .num{position:relative}
.step.is-active .num::after{
  content:"";position:absolute;inset:-7px;border-radius:50%;border:1px solid rgba(27,117,187,.28);
  animation:sawStepPulse 1.1s cubic-bezier(.22,1,.36,1) 1
}
.step.last .num{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;box-shadow:0 4px 14px rgba(19,65,111,.18)}
.step h3{margin:0 0 8px;font-family:var(--label-font);font-size:18px;color:var(--ink);letter-spacing:.01em}
.step p{margin:0;font-size:13.5px;line-height:1.55;color:var(--muted)}

/* ===================== CTA FINAL ===================== */
.cta{position:relative;background:var(--accent-deep);overflow:hidden;padding:128px 0 0}
.cta .glow{position:absolute;inset:0;z-index:0;background:radial-gradient(120% 90% at 80% 0%,rgba(27,117,187,.45),rgba(19,65,111,0) 60%)}
.cta-inner{position:relative;z-index:2;max-width:880px;margin:0 auto;padding:0 32px;text-align:center}
.cta h2{margin:0 0 22px;font-family:var(--title-font);font-weight:500;font-size:clamp(36px,4.4vw,64px);line-height:1.04;letter-spacing:-.01em;color:#fff}
.cta-sub{margin:0 auto 38px;max-width:560px;font-size:17.5px;line-height:1.62;color:rgba(217,226,232,.86)}
.cta-actions{display:flex;align-items:center;justify-content:center;gap:13px;flex-wrap:wrap}
.btn-white{padding:16px 28px;background:#fff;color:var(--accent-deep);font-size:15.5px;
  box-shadow:0 8px 24px rgba(0,0,0,.16),0 2px 7px rgba(0,0,0,.08),inset 0 1px 0 rgba(255,255,255,.9)}
.btn-white:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(0,0,0,.24),0 0 22px rgba(217,226,232,.20),0 4px 10px rgba(0,0,0,.08)}
.btn-line{padding:16px 24px;border:1.5px solid rgba(255,255,255,.30);color:#fff;background:rgba(255,255,255,.04);font-size:15px;font-weight:500}
.btn-line:hover{
  transform:translateY(-2px);border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.09);
  box-shadow:0 16px 34px rgba(0,0,0,.20),0 0 20px rgba(27,117,187,.16),inset 0 1px 0 rgba(255,255,255,.16)
}

.marquee{position:relative;z-index:1;margin-top:84px;padding-bottom:36px;overflow:hidden;width:100%;pointer-events:none;white-space:nowrap;min-height:118px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(19,65,111,0),rgba(11,17,23,.10))
}
.marquee-track{display:flex;width:max-content;animation:sawMarquee 32s linear infinite;will-change:transform}
.marquee-track span{font-family:var(--title-font);font-weight:500;font-size:clamp(56px,9vw,140px);
  flex-shrink:0;white-space:nowrap;line-height:1;letter-spacing:.01em;color:rgba(255,255,255,.18);padding-right:.4em}

.saw-final-marquee{
  position:relative;
  width:100%;
  overflow:hidden;
  margin-top:clamp(56px,8vw,110px);
  pointer-events:none;
  user-select:none;
  z-index:0
}
.saw-final-marquee-track{
  display:flex;
  align-items:center;
  width:max-content;
  min-width:200%;
  animation:sawFinalMarqueeMove 16s linear infinite!important;
  will-change:transform
}
.saw-final-marquee-track span{
  flex:0 0 auto;
  white-space:nowrap;
  padding-right:clamp(32px,5vw,80px);
  font-family:"Bodoni Moda",Didot,serif;
  font-size:clamp(84px,14vw,230px);
  line-height:.82;
  letter-spacing:.03em;
  text-transform:uppercase;
  color:rgba(255,255,255,.16)
}
@keyframes sawFinalMarqueeMove{
  0%{transform:translate3d(0,0,0)}
  100%{transform:translate3d(-50%,0,0)}
}

.foot{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.12)}
.foot-inner{max-width:var(--maxw);margin:0 auto;padding:26px 32px;display:flex;align-items:center;
  justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot-inner b{font-family:var(--label-font);font-size:13px;font-weight:400;letter-spacing:.16em;text-transform:uppercase;color:rgba(217,226,232,.7)}
.foot-inner span{font-size:12.5px;color:rgba(217,226,232,.55)}

/* floating whatsapp */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:1100;display:inline-flex;align-items:center;
  justify-content:center;width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;
  text-decoration:none;box-shadow:0 8px 24px rgba(0,0,0,.22);transition:transform .3s ease}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px}

/* ===================== RESPONSIVE ===================== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{min-height:440px;max-width:520px;margin:0 auto;width:100%}
  .aut-grid{grid-template-columns:1fr;gap:36px}
  .aut-grid h2{max-width:none}
  .fac-grid{grid-template-columns:1fr;gap:54px}
  .svc{flex:0 0 calc(50% - 11px)}
  .proj.big,.proj.small,.proj-bridge{grid-column:span 3}
  .port-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:30px 24px}
  .stepper .track,.stepper .fill{display:none}
}
@media (max-width:680px){
  .wrap,.header-inner,.foot-inner,.cta-inner{padding-left:20px;padding-right:20px}
  .header-inner{gap:0;justify-content:space-between;padding:14px 20px}
  .h-sep{display:none}
  .nav{position:fixed;inset:0 0 auto 0;top:0;flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;padding:90px 28px 28px;box-shadow:0 20px 50px rgba(11,17,23,.14);
    transform:translateY(-110%);transition:transform .4s cubic-bezier(.2,.7,.2,1);height:auto}
  .nav.open{transform:translateY(0)}
  .nav a{padding:16px 0;width:100%;border-bottom:1px solid rgba(19,65,111,.08);font-size:14px}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .section{padding:80px 0}
  .hero{padding:130px 0 70px}
  .svc{flex:0 0 100%}
  .proj-grid{grid-template-columns:1fr;gap:16px}
  .proj.big,.proj.small,.proj-bridge{grid-column:span 1;aspect-ratio:16/11}
  .port-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:28px 20px}
  .fac-detail{position:relative;right:auto;bottom:auto;margin:18px auto 0;width:100%;max-width:280px}
  .mod3d{top:-14px;right:-8px;transform:scale(.8);transform-origin:top right}
  .cta{padding:90px 0 0}
  .marquee{margin-top:54px;min-height:76px}
  .saw-final-marquee{margin-top:48px}
  .saw-final-marquee-track{animation-duration:14s!important}
  .saw-final-marquee-track span{font-size:clamp(62px,22vw,130px);color:rgba(255,255,255,.14)}
}

/* ============================================================
   VIEWS (home / portafolio) + filtros
   ============================================================ */
[hidden]{display:none!important}

body.is-portfolio #homeView{
  display:none!important;
}

body:not(.is-portfolio) #portfolioView,
body:not(.is-portfolio) #portafolioView{
  display:none!important;
}

/* ===================== PORTAFOLIO VIEW ===================== */
#portafolioView{background:var(--page-bg);min-height:100vh;display:flex;flex-direction:column}
.port-top{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(160%) blur(16px);backdrop-filter:saturate(160%) blur(16px);
  border-bottom:1px solid rgba(19,65,111,.10)}
.port-top-inner{max-width:1320px;margin:0 auto;padding:14px 40px;display:flex;align-items:center;gap:24px}
.port-top .brand img{height:48px;width:auto}
.port-top-label{flex:1;font-family:var(--label-font);font-size:12.5px;letter-spacing:.3em;
  text-transform:uppercase;color:var(--accent-deep)}
.port-back{display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  font-family:var(--label-font);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent-deep);padding:10px 18px;border:1.5px solid rgba(19,65,111,.22);border-radius:5px;
  transition:border-color .25s,background .25s,transform .25s}
.port-back:hover{border-color:var(--accent);background:rgba(27,117,187,.06);transform:translateY(-1px)}

.port-hero{padding:72px 0 30px}
.port-h1{margin:0 0 18px}
.port-sub{max-width:620px;font-size:17px}
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.filter-btn{
  padding:10px 20px;background:#fff;border:1px solid rgba(19,65,111,.16);border-radius:40px;cursor:pointer;
  font-family:var(--label-font);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-deep);transition:transform .22s,background .22s,color .22s,border-color .22s,box-shadow .22s}
.filter-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(19,65,111,.10);border-color:var(--accent)}
.filter-btn.active{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(27,117,187,.22)}

.port-body{padding:30px 0 96px;flex:1}
.port-body .pcard{
  transition-delay:var(--d,0ms)
}
@keyframes sawStepPulse{to{opacity:0;transform:scale(1.9)}}
@media (prefers-reduced-motion:reduce){
  .port-body .pcard{opacity:1;transform:none}
  .mod3d-float,.marquee-track,.header-cta,.step.is-active .num::after{animation:none!important}
  .saw-final-marquee-track{animation:sawFinalMarqueeMove 28s linear infinite!important}
  .proj,.pcard,.proj img,.pcard img,.fac-detail,.mod3d-card{transition:none!important}
}
.port-empty{margin:40px 0 0;text-align:center;color:var(--muted);font-size:15px}
.port-foot{background:var(--accent-deep)}
.link-arrow.light{color:#fff}
.link-arrow.light:hover svg{transform:translateX(4px)}

@media (max-width:680px){
  .port-top-inner{padding:12px 20px;gap:12px}
  .port-top-label{display:none}
  .port-back{padding:9px 14px;font-size:11px}
  .port-hero{padding:48px 0 22px}
  .port-body{padding:22px 0 70px}
}