:root{--red:#e31b2f;--red-dark:#b71323;--ink:#111827;--muted:#64707d;--line:#e6e8eb;--soft:#f4f5f7;--white:#fff;--shadow:0 24px 70px rgba(15,23,42,.18)}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--soft);line-height:1.6}body.lightbox-open{overflow:hidden}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.container{width:min(1180px,92vw);margin:auto}
.site-header{position:fixed;inset:0 0 auto;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(230,232,235,.9)}.header-inner{height:82px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand img{width:170px}.main-nav{display:flex;align-items:center;gap:28px;font-weight:700;font-size:14px;color:#303944}.main-nav a{position:relative}.main-nav a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;background:var(--red);transition:.25s}.main-nav a:hover::after{width:100%}.nav-cta{background:var(--red);color:#fff;padding:12px 18px;border-radius:999px;box-shadow:0 12px 24px rgba(227,27,47,.24)}.menu-toggle{display:none;background:transparent;border:0;width:42px;height:42px}.menu-toggle span{display:block;height:2px;background:#111;margin:7px 0}
.hero{min-height:100vh;position:relative;display:grid;align-items:end;overflow:hidden;color:#fff;padding:150px 0 58px}.hero-media{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02)}.hero-shade{position:absolute;inset:0;background:radial-gradient(circle at 70% 40%,rgba(227,27,47,.18),transparent 25%),linear-gradient(90deg,rgba(4,8,15,.92),rgba(4,8,15,.68) 42%,rgba(4,8,15,.25)),linear-gradient(0deg,rgba(4,8,15,.88),transparent 42%)}.hero-content{position:relative;max-width:930px}.kicker,.eyebrow{color:var(--red);text-transform:uppercase;letter-spacing:.22em;font-weight:900;font-size:12px;margin-bottom:18px}.eyebrow.light{color:#ff7a86}.hero h1{font-size:clamp(43px,7vw,86px);line-height:.98;letter-spacing:-.06em;max-width:980px;margin-bottom:26px;font-weight:900}.hero-text{max-width:760px;font-size:clamp(18px,2vw,23px);color:rgba(255,255,255,.86);margin-bottom:34px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:54px}.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:16px;padding:15px 22px;font-weight:900;cursor:pointer;transition:.25s;font-size:15px}.button.primary{background:var(--red);color:#fff;box-shadow:0 18px 38px rgba(227,27,47,.28)}.button.primary:hover{background:var(--red-dark);transform:translateY(-2px)}.button.secondary{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.35)}.button.secondary:hover{background:#fff;color:#111}.hero-data{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;max-width:820px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(16px);border-radius:26px;overflow:hidden}.hero-data div{padding:22px 24px;background:rgba(8,14,24,.42)}.hero-data strong{display:block;font-size:34px;line-height:1;font-weight:900}.hero-data span{display:block;color:rgba(255,255,255,.76);font-size:13px;margin-top:8px}
.section{padding:110px 0}.intro{background:#fff}.intro-grid,.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:start}.intro h2,.gallery-heading h2,.contact h2,.trust h2,.image-band h2,.social-section h2{font-size:clamp(34px,4.5vw,58px);line-height:1.04;letter-spacing:-.045em;font-weight:900}.intro-text{font-size:19px;color:#3f4a56}.intro-text p+p{margin-top:22px}
.image-band{color:#fff;padding:130px 0;background-size:cover;background-position:center}.band-grid{display:grid;grid-template-columns:1fr .8fr;gap:60px;align-items:end}.image-band p{font-size:19px;color:rgba(255,255,255,.82)}
.gallery-section{background:#f3f5f7}.gallery-heading{display:grid;grid-template-columns:1fr .75fr;gap:60px;align-items:end;margin-bottom:46px}.gallery-heading>p{font-size:18px;color:var(--muted)}.gallery-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;grid-template-rows:290px 290px;gap:18px}.gallery-item{position:relative;overflow:hidden;border:0;border-radius:28px;background:#111;cursor:pointer;box-shadow:0 16px 38px rgba(15,23,42,.12)}.gallery-item-1{grid-row:1/span 2}.gallery-item-4{grid-column:2/span 2}.gallery-item img{width:100%;height:100%;object-fit:cover;transition:.65s}.gallery-item:hover img{transform:scale(1.045);filter:brightness(.92)}.gallery-item span{position:absolute;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.9);font-size:27px;z-index:2;transition:.25s}.gallery-item:hover span{transform:rotate(90deg);background:var(--red);color:#fff}
.social-section{
  position:relative;
  overflow:hidden;
  color:#fff;
  background:#0b1016;
}
.social-background{
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(6,10,16,.94),rgba(6,10,16,.72)),
    url('../img/galeria/galeria-03.jpg') center/cover no-repeat;
  transform:scale(1.02);
}
.social-card{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr minmax(320px,420px);
  gap:60px;
  align-items:center;
  padding:58px 64px;
  border-radius:38px;
  background:rgba(16,23,32,.72);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(10px);
  box-shadow:0 30px 80px rgba(0,0,0,.30);
}
.social-copy h2{
  color:#fff;
  margin-bottom:18px;
}
.social-copy p:last-child{
  max-width:680px;
  font-size:19px;
  color:rgba(255,255,255,.82);
}
.social-links{
  display:grid;
  gap:14px;
}
.social-button{
  width:100%;
  display:grid;
  grid-template-columns:54px 1fr auto;
  gap:16px;
  align-items:center;
  padding:17px 19px;
  border-radius:22px;
  background:#fff;
  color:#111;
  transition:.25s ease;
}
.social-button:hover{
  transform:translateY(-3px);
  box-shadow:0 18px 42px rgba(0,0,0,.25);
}
.social-button small{
  display:block;
  color:#6b7280;
  font-size:11px;
  font-weight:900;
  text-transform:uppercase;
  letter-spacing:.10em;
}
.social-button strong{
  display:block;
  font-size:17px;
}
.social-button b{
  font-size:22px;
}
.social-icon{
  width:54px;
  height:54px;
  border-radius:17px;
  display:grid;
  place-items:center;
  background:var(--red);
}
.social-icon svg{
  width:27px;
  height:27px;
  fill:none;
  stroke:#fff;
  stroke-width:2;
}
.social-button:nth-child(2) .social-icon svg{
  fill:#fff;
  stroke:none;
}
.trust{
  position:relative;
  overflow:hidden;
  color:#fff;
  text-align:center;
  background:#151b24;
}
.trust-background{
  position:absolute;
  inset:0;
  background:
    linear-gradient(rgba(13,19,28,.82),rgba(13,19,28,.88)),
    url('../img/acuerdo-aisa.jpg') center 55%/cover no-repeat;
  transform:scale(1.02);
}
.trust-inner{
  position:relative;
  z-index:2;
  max-width:1080px;
}
.trust h2{
  max-width:820px;
  margin:0 auto 24px;
  color:#fff;
  font-size:clamp(40px,4.7vw,64px);
  line-height:1.02;
  letter-spacing:-.05em;
  text-wrap:balance;
}
.trust p{
  max-width:1020px;
  margin:0 auto;
  font-size:21px;
  color:rgba(255,255,255,.86);
}.contact{background:#fff}.contact p{font-size:18px;color:var(--muted);margin-top:18px;max-width:620px}.contact-list{display:grid;gap:12px;margin-top:34px;font-weight:800}.contact-list a{color:var(--red)}.contact-form{background:#f4f5f7;border:1px solid var(--line);border-radius:34px;padding:34px;box-shadow:var(--shadow)}.contact-form label{display:grid;gap:8px;font-size:13px;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:#45515e;margin-bottom:18px}.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid #d9dde3;border-radius:16px;padding:15px 16px;background:#fff}.site-footer{background:#07090d;color:rgba(255,255,255,.68);padding:38px 0}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-inner img{width:140px;background:#fff;border-radius:999px}.footer-inner a{font-weight:900;color:#fff}
.whatsapp-float{position:fixed;right:24px;bottom:88px;z-index:85;width:58px;height:58px;display:grid;place-items:center;border-radius:50%;background:#25d366;box-shadow:0 18px 38px rgba(0,0,0,.28);transition:.25s}.whatsapp-float:hover{transform:translateY(-4px) scale(1.04)}.whatsapp-float svg{width:32px;height:32px;fill:#fff}.back-to-top{position:fixed;right:24px;bottom:24px;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--red);color:#fff;font-size:28px;font-weight:900;opacity:0;visibility:hidden;transform:translateY(16px);transition:.25s;z-index:80}.back-to-top.visible{opacity:1;visibility:visible;transform:none}
.lightbox{position:fixed;inset:0;z-index:200;display:grid;place-items:center;background:rgba(3,6,11,.94);opacity:0;visibility:hidden;transition:.25s}.lightbox.open{opacity:1;visibility:visible}.lightbox figure{width:min(1100px,86vw);height:min(760px,82vh);display:grid;grid-template-rows:1fr auto;gap:14px}.lightbox img{width:100%;height:100%;object-fit:contain}.lightbox figcaption{color:rgba(255,255,255,.76);text-align:center}.lightbox button{position:absolute;border:0;cursor:pointer;background:rgba(255,255,255,.1);color:#fff}.lightbox-close{top:24px;right:24px;width:50px;height:50px;border-radius:50%;font-size:34px}.lightbox-prev,.lightbox-next{top:50%;transform:translateY(-50%);width:58px;height:76px;border-radius:18px;font-size:44px}.lightbox-prev{left:24px}.lightbox-next{right:24px}
/* Productos */.products-hero{min-height:82vh;position:relative;display:flex;align-items:flex-end;color:#fff;padding:150px 0 70px;overflow:hidden}.products-hero-bg{position:absolute;inset:0;background:url('../img/planta-silos-hero.png') center/cover;transform:scale(1.02)}.products-hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,8,15,.94),rgba(4,8,15,.34)),linear-gradient(0deg,rgba(4,8,15,.9),transparent 52%)}.products-hero-content{position:relative;max-width:980px}.products-hero h1{font-size:clamp(42px,6.6vw,82px);line-height:.98;letter-spacing:-.06em;font-weight:900;margin-bottom:26px}.products-intro{background:#fff;padding:96px 0}.products-intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}.products-catalog{background:#f4f5f7;padding:100px 0}.product-category{margin-bottom:92px}.category-heading{display:flex;align-items:end;gap:20px;margin-bottom:34px;padding-bottom:18px;border-bottom:1px solid #d8dde3}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.product-card{background:#fff;border-radius:28px;overflow:hidden;box-shadow:0 18px 45px rgba(15,23,42,.08);border:1px solid #e2e6ea}.product-card img{width:100%;height:260px;object-fit:cover}.product-body{padding:26px;display:flex;flex-direction:column;height:100%}.product-body h3{font-size:25px;margin-bottom:12px}.product-body p{margin-bottom:22px;line-height:1.6;color:#4b5563;font-size:15px}.details-btn{display:inline-flex;align-self:flex-start;margin-top:auto;background:var(--red);color:#fff;padding:12px 18px;border-radius:14px;font-weight:900}
.products-cta .button{display:inline-flex;margin-top:28px}
@media(max-width:980px){.header-inner{height:74px}.brand img{width:138px}.menu-toggle{display:block}.main-nav{position:fixed;top:74px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:20px 4vw;display:none;flex-direction:column;align-items:flex-start;gap:18px}.main-nav.open{display:flex}.hero-data{grid-template-columns:1fr}.intro-grid,.contact-grid,.band-grid,.gallery-heading{grid-template-columns:1fr;gap:40px}.gallery-grid{grid-template-columns:1fr 1fr;grid-template-rows:420px 260px 260px}.gallery-item-1{grid-column:1/span 2;grid-row:auto}.gallery-item-4{grid-column:auto}.social-card{grid-template-columns:1fr;padding:48px}.social-button{min-width:0;max-width:440px}.footer-inner{flex-direction:column;text-align:center}.products-intro-grid,.product-grid{grid-template-columns:1fr}}
@media(max-width:620px){.hero h1{font-size:42px}.section{padding:78px 0}.hero-actions .button{width:100%}.gallery-grid{grid-template-columns:1fr;grid-template-rows:none}.gallery-item,.gallery-item-1,.gallery-item-4{grid-column:auto;grid-row:auto;min-height:260px}.gallery-item-1{min-height:360px}.social-card{grid-template-columns:1fr;padding:34px 24px;border-radius:28px}.social-links{width:100%}.trust h2{font-size:38px;max-width:560px}.contact-form{padding:26px}.whatsapp-float{right:18px;bottom:80px;width:54px;height:54px}.back-to-top{right:18px;bottom:18px;width:48px;height:48px}.lightbox figure{width:92vw;height:74vh}.lightbox-prev,.lightbox-next{top:auto;bottom:20px;width:54px;height:54px;border-radius:50%;transform:none}.lightbox-prev{left:calc(50% - 66px)}.lightbox-next{right:calc(50% - 66px)}}
.gallery-cta{
    margin-top:50px;
    text-align:center;
}

.gallery-cta .button{
    min-width:280px;
    padding:16px 32px;
    font-size:16px;
}