/* ==========================================================================
   AyB Industrial Comercial SAS — Tema corporativo
   Sistema de diseño: industrial-ingeniería | acero + cobre
   ========================================================================== */

/* ---- Tokens ---- */
:root{
  /* Marca */
  --navy-900:#071A2B;
  --navy-800:#0B2740;
  --navy-700:#103253;
  --navy-600:#1C4E80;
  --steel-500:#3D6B9E;
  --copper-600:#B5631F;
  --copper-500:#D4842F;
  --copper-400:#E5A155;

  /* Neutros */
  --ink:#0E1A24;
  --muted:#5A6573;
  --line:#E2E6EB;
  --line-strong:#C7CFD8;
  --paper:#FFFFFF;
  --paper-2:#F4F6F8;
  --paper-3:#EBEEF2;

  /* Tipografía */
  --font-display:"Archivo","Archivo Black",sans-serif;
  --font-body:"IBM Plex Sans",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,monospace;

  /* Medidas */
  --container:1240px;
  --radius:4px;
  --radius-lg:8px;
  --shadow-sm:0 1px 2px rgba(7,26,43,.08);
  --shadow-md:0 12px 30px -12px rgba(7,26,43,.28);
  --shadow-lg:0 30px 60px -20px rgba(7,26,43,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---- Reset ---- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.08;margin:0;font-weight:800;letter-spacing:-.02em}
p{margin:0 0 1rem}

/* ---- Utilidades ---- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:24px}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--copper-600);
  font-weight:600;
  display:inline-flex;align-items:center;gap:.6rem;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--copper-500)}
.eyebrow.on-dark{color:var(--copper-400)}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.lead{font-size:1.15rem;color:var(--muted);max-width:60ch}

.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--font-mono);font-weight:600;font-size:.82rem;
  letter-spacing:.04em;text-transform:uppercase;
  padding:15px 26px;border-radius:var(--radius);
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.btn svg{width:16px;height:16px}
.btn--primary{background:var(--copper-500);color:#fff}
.btn--primary:hover{background:var(--copper-600);transform:translateY(-2px);box-shadow:0 10px 24px -8px rgba(181,99,31,.6)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn--dark{background:var(--navy-800);color:#fff}
.btn--dark:hover{background:var(--navy-700);transform:translateY(-2px)}
.btn--outline{background:transparent;color:var(--navy-800);border-color:var(--line-strong)}
.btn--outline:hover{border-color:var(--navy-800);background:var(--paper-2)}

/* ==========================================================================
   Top bar
   ========================================================================== */
.topbar{background:var(--navy-900);color:rgba(255,255,255,.78);font-size:.8rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:40px;font-family:var(--font-mono);letter-spacing:.02em}
.topbar a{color:rgba(255,255,255,.78);transition:color .2s}
.topbar a:hover{color:#fff}
.topbar__left{display:flex;gap:22px;align-items:center}
.topbar__left .dot{color:var(--copper-400)}
.topbar__right{display:flex;gap:18px;align-items:center}
@media(max-width:820px){.topbar__left span:not(.phone){display:none}}

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.brand{display:flex;align-items:center;gap:14px;flex-shrink:0}
.brand__logo{height:44px;width:auto}
.brand__fallback{display:flex;flex-direction:column;line-height:1}
.brand__fallback b{font-family:var(--font-display);font-size:1.4rem;letter-spacing:-.03em;color:var(--navy-800)}
.brand__fallback b span{color:var(--copper-500)}
.brand__fallback small{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-top:3px}

.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  font-family:var(--font-mono);font-size:.78rem;font-weight:500;letter-spacing:.06em;
  text-transform:uppercase;color:var(--navy-800);padding:10px 14px;border-radius:var(--radius);
  position:relative;transition:color .2s;
}
.main-nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--copper-500);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.main-nav a:hover{color:var(--copper-600)}
.main-nav a:hover::after{transform:scaleX(1)}

.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:26px;height:2px;background:var(--navy-800);transition:.3s}

@media(max-width:1080px){
  .main-nav,.header-cta .btn{display:none}
  .nav-toggle{display:flex}
}
/* Mobile drawer */
.mobile-nav{position:fixed;inset:0 0 0 auto;width:min(82vw,360px);background:var(--navy-800);color:#fff;transform:translateX(100%);transition:transform .35s var(--ease);z-index:80;padding:90px 30px 30px;display:flex;flex-direction:column;gap:4px}
.mobile-nav.open{transform:translateX(0)}
.mobile-nav a{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.06em;font-size:.9rem;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.mobile-nav .btn{margin-top:22px;justify-content:center}
.nav-close{position:absolute;top:24px;right:24px;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}
.scrim{position:fixed;inset:0;background:rgba(7,26,43,.5);opacity:0;visibility:hidden;transition:.3s;z-index:70}
.scrim.open{opacity:1;visibility:visible}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{position:relative;background:var(--navy-800);color:#fff;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(1100px 600px at 80% -10%,rgba(212,132,47,.22),transparent 55%),
    radial-gradient(900px 700px at -5% 110%,rgba(28,78,128,.55),transparent 60%),
    var(--navy-800);
}
.hero__grid-lines{position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent)}
.hero .container{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center;padding-block:96px 110px}
.hero__title{font-size:clamp(2.6rem,5.2vw,4.4rem);letter-spacing:-.03em;margin:22px 0}
.hero__title em{font-style:normal;color:var(--copper-400);display:block}
.hero__desc{color:rgba(255,255,255,.78);font-size:1.15rem;max-width:46ch;margin-bottom:34px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap}
.hero__badges{display:flex;gap:28px;margin-top:46px;padding-top:30px;border-top:1px solid rgba(255,255,255,.14)}
.hero__badge b{font-family:var(--font-display);font-size:2rem;display:block;letter-spacing:-.03em}
.hero__badge span{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.6)}
.hero__visual{position:relative}
.hero__card{background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);padding:28px;backdrop-filter:blur(4px)}
.hero__card h3{font-size:1rem;font-family:var(--font-mono);font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--copper-400);margin-bottom:18px}
.hero__spec{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:.92rem}
.hero__spec span{color:rgba(255,255,255,.65)}
.hero__spec b{font-family:var(--font-mono)}
.hero__stamp{position:absolute;top:-22px;right:-14px;background:var(--copper-500);color:#fff;font-family:var(--font-mono);font-weight:700;font-size:.74rem;letter-spacing:.08em;padding:14px 16px;border-radius:50%;width:96px;height:96px;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.2;box-shadow:var(--shadow-md);transform:rotate(-8deg)}

@media(max-width:980px){
  .hero .container{grid-template-columns:1fr;gap:40px;padding-block:64px 72px}
  .hero__visual{order:-1;display:none}
}

/* ==========================================================================
   Marquee de marcas / aliados
   ========================================================================== */
.partners{background:var(--paper-2);border-bottom:1px solid var(--line)}
.partners .container{display:flex;align-items:center;gap:40px;padding-block:26px;flex-wrap:wrap;justify-content:center}
.partners__label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.partners__logos{display:flex;gap:48px;align-items:center;flex-wrap:wrap;justify-content:center}
.partners__logos img{height:34px;filter:grayscale(1);opacity:.7;transition:.3s}
.partners__logos img:hover{filter:none;opacity:1}
.partner-chip{font-family:var(--font-display);font-weight:800;color:var(--navy-700);font-size:1.25rem;letter-spacing:-.02em;opacity:.75}

/* ==========================================================================
   Sectores
   ========================================================================== */
.section-head{max-width:660px;margin-bottom:52px}
.section-head h2{font-size:clamp(2rem,3.6vw,2.8rem);margin:16px 0 14px}
.section-head--center{margin-inline:auto;text-align:center}
.section-head--center .eyebrow::before{display:none}

.sectors{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.sector-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:340px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;border:1px solid var(--line);background:var(--navy-700);isolation:isolate}
.sector-card__img{position:absolute;inset:0;object-fit:cover;width:100%;height:100%;z-index:-2;transition:transform .6s var(--ease)}
.sector-card::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(7,26,43,.15) 0%,rgba(7,26,43,.55) 55%,rgba(7,26,43,.92) 100%)}
.sector-card:hover .sector-card__img{transform:scale(1.07)}
.sector-card__body{padding:26px}
.sector-card__num{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;color:var(--copper-400)}
.sector-card h3{font-size:1.4rem;margin:8px 0 6px}
.sector-card p{font-size:.92rem;color:rgba(255,255,255,.8);margin:0}
.sector-card__link{margin-top:16px;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:#fff;display:inline-flex;align-items:center;gap:8px;transition:gap .25s}
.sector-card:hover .sector-card__link{gap:14px;color:var(--copper-400)}
@media(max-width:980px){.sectors{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.sectors{grid-template-columns:1fr}.sector-card{min-height:260px}}

/* ==========================================================================
   Bloque trayectoria / cifras
   ========================================================================== */
.experience{background:var(--navy-800);color:#fff;position:relative;overflow:hidden}
.experience::before{content:"";position:absolute;inset:0;background:radial-gradient(800px 500px at 90% 10%,rgba(212,132,47,.16),transparent 60%)}
.experience .container{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.experience h2{font-size:clamp(2rem,3.6vw,2.9rem);margin:16px 0 20px}
.experience p{color:rgba(255,255,255,.78)}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);overflow:hidden}
.stat{background:var(--navy-700);padding:34px 28px}
.stat b{font-family:var(--font-display);font-size:3rem;letter-spacing:-.03em;display:block;color:#fff}
.stat b span{color:var(--copper-400)}
.stat small{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.6)}
@media(max-width:880px){.experience .container{grid-template-columns:1fr;gap:38px}}

/* ==========================================================================
   Catálogo / productos
   ========================================================================== */
.catalog-filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.chip{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.04em;text-transform:uppercase;padding:10px 18px;border-radius:999px;border:1px solid var(--line-strong);background:#fff;cursor:pointer;transition:.25s;color:var(--navy-800)}
.chip:hover{border-color:var(--navy-800)}
.chip.active{background:var(--navy-800);color:#fff;border-color:var(--navy-800)}

.products{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.product-card{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.product-card__media{aspect-ratio:4/3;background:var(--paper-3);position:relative;overflow:hidden}
.product-card__media img{width:100%;height:100%;object-fit:cover}
.product-card__tag{position:absolute;top:12px;left:12px;font-family:var(--font-mono);font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;background:rgba(11,39,64,.9);color:#fff;padding:5px 10px;border-radius:3px}
.product-card__body{padding:20px;display:flex;flex-direction:column;flex:1}
.product-card__sku{font-family:var(--font-mono);font-size:.7rem;color:var(--muted);letter-spacing:.05em}
.product-card h3{font-size:1.05rem;margin:6px 0 8px;letter-spacing:-.01em;font-weight:700}
.product-card p{font-size:.88rem;color:var(--muted);margin:0 0 18px;flex:1}
.product-card__foot{display:flex;gap:10px}
.product-card__foot .btn{flex:1;justify-content:center;padding:11px 14px;font-size:.72rem}
@media(max-width:980px){.products{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.products{grid-template-columns:1fr}}

/* ==========================================================================
   Ventajas / servicios
   ========================================================================== */
.features{background:var(--paper-2)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.feature{background:#fff;padding:38px 32px}
.feature__icon{width:48px;height:48px;border-radius:var(--radius);background:var(--navy-800);color:var(--copper-400);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.feature__icon svg{width:24px;height:24px}
.feature h3{font-size:1.2rem;margin-bottom:10px;font-weight:700;letter-spacing:-.01em}
.feature p{font-size:.92rem;color:var(--muted);margin:0}
@media(max-width:880px){.features-grid{grid-template-columns:1fr}}

/* ==========================================================================
   CTA final
   ========================================================================== */
.cta-band{background:linear-gradient(120deg,var(--navy-800),var(--navy-600));color:#fff;border-radius:var(--radius-lg);padding:60px;display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 100% 0,rgba(212,132,47,.25),transparent 60%)}
.cta-band__text{position:relative}
.cta-band h2{font-size:clamp(1.8rem,3vw,2.4rem);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.82);margin:0;max-width:48ch}
.cta-band__actions{position:relative;display:flex;gap:14px;flex-shrink:0}
@media(max-width:820px){.cta-band{flex-direction:column;align-items:flex-start;padding:40px 30px}}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{background:var(--navy-900);color:rgba(255,255,255,.7);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:54px}
.footer-brand b{font-family:var(--font-display);font-size:1.5rem;color:#fff;letter-spacing:-.03em}
.footer-brand b span{color:var(--copper-500)}
.footer-brand p{margin-top:14px;font-size:.92rem;max-width:34ch}
.footer-col h4{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col a,.footer-col li{font-size:.92rem;padding:6px 0;display:block;color:rgba(255,255,255,.7);transition:color .2s}
.footer-col a:hover{color:var(--copper-400)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;font-size:.8rem;font-family:var(--font-mono);letter-spacing:.02em;flex-wrap:wrap}
@media(max-width:880px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}

/* ==========================================================================
   WhatsApp flotante + animaciones
   ========================================================================== */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:90;width:58px;height:58px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);transition:transform .25s}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px;fill:#fff}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* Páginas internas */
.page-hero{background:var(--navy-800);color:#fff;padding:70px 0;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 400px at 85% 0,rgba(212,132,47,.18),transparent 60%)}
.page-hero .container{position:relative}
.page-hero h1{font-size:clamp(2.2rem,4vw,3.2rem);margin:14px 0 0}
.breadcrumbs{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;color:rgba(255,255,255,.6);text-transform:uppercase}
.breadcrumbs a:hover{color:var(--copper-400)}
.prose{max-width:760px;font-size:1.05rem}
.prose h2{font-size:1.7rem;margin:38px 0 14px}
.prose h3{font-size:1.3rem;margin:28px 0 10px}
.prose ul{list-style:none;margin:0 0 1.4rem}
.prose ul li{position:relative;padding-left:26px;margin-bottom:8px}
.prose ul li::before{content:"";position:absolute;left:0;top:11px;width:10px;height:2px;background:var(--copper-500)}