/* ==========================================================================
   AMN LOGISTICA — style.css
   Sistema de diseño: transporte de carga + manejo integral de residuos
   Mobile-first. Paleta inspirada en trazabilidad ambiental e industria.
   ========================================================================== */

:root{
  /* Color */
  --verde-950:#0A2A55;
  --verde-900:#0E3A73;
  --verde-700:#1B5FAE;
  --verde-600:#2569C7;
  --verde-500:#3B82D9;
  --verde-100:#E6EEF9;
  --verde-50:#F2F6FC;
  --ambar-600:#A81624;
  --ambar-500:#D62839;
  --ambar-100:#FBE0E2;
  --tinta-900:#12211B;
  --tinta-600:#4B5A52;
  --tinta-300:#8C9A92;
  --linea:#E1E7E2;
  --blanco:#FFFFFF;

  /* Tipografia */
  --f-display:'Space Grotesk', 'Segoe UI', sans-serif;
  --f-body:'Inter', 'Segoe UI', sans-serif;
  --f-mono:'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --maxw:1240px;
  --radio:14px;
  --radio-sm:8px;
  --sombra: 0 10px 30px -12px rgba(10,42,85,.25);
  --sombra-suave: 0 4px 16px -6px rgba(10,42,85,.15);
  --header-h:92px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--tinta-900);
  background:var(--blanco);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.15;margin:0 0 .5em;color:var(--verde-950);}
p{margin:0 0 1em;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:3px solid var(--ambar-500);outline-offset:2px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}

.eyebrow{
  font-family:var(--f-mono);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.75rem;
  color:var(--verde-600);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--ambar-500);
  display:inline-block;
}

.section{padding:64px 0;}
.section--tinted{background:var(--verde-50);}
.section--dark{background:var(--verde-950);color:#EAF2ED;}
.section--dark h2, .section--dark h3{color:#fff;}

.section-head{max-width:680px;margin:0 0 36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  border:2px solid transparent;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn--ambar{background:var(--ambar-500);color:var(--verde-950);}
.btn--ambar:hover{background:var(--ambar-600);transform:translateY(-2px);box-shadow:var(--sombra);}
.btn--outline{border-color:currentColor;color:var(--blanco);}
.btn--outline:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn--verde{background:var(--verde-600);color:#fff;}
.btn--verde:hover{background:var(--verde-700);transform:translateY(-2px);box-shadow:var(--sombra);}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute;left:-999px;top:auto;background:var(--verde-950);color:#fff;
  padding:12px 18px;z-index:1000;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;top:0;}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position:sticky;top:0;z-index:700;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--linea);
  height:var(--header-h);
}
.site-header .container{
  height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand img{height:64px;width:auto;}

.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--linea);border-radius:10px;background:#fff;
  align-items:center;
}
.nav-toggle span{width:20px;height:2px;background:var(--verde-950);border-radius:2px;transition:transform .25s ease, opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.main-nav{
  position:fixed;inset:var(--header-h) 0 0 0;
  background:var(--verde-950);
  transform:translateX(100%);
  transition:transform .35s ease;
  overflow-y:auto;
}
.main-nav.is-open{transform:translateX(0);}
.main-nav ul{display:flex;flex-direction:column;padding:18px 20px 40px;}
.main-nav a{
  display:block;padding:16px 4px;color:#EAF2ED;font-family:var(--f-display);
  font-size:1.15rem;border-bottom:1px solid rgba(255,255,255,.08);
}
.main-nav a.active{color:var(--ambar-500);}
.main-nav .nav-cta{margin-top:20px;}

@media (min-width: 960px){
  .nav-toggle{display:none;}
  .main-nav{
    position:static;inset:auto;background:none;transform:none;overflow:visible;height:auto;transition:none;
  }
  .main-nav ul{flex-direction:row;align-items:center;padding:0;gap:2px;}
  .main-nav a{
    padding:10px 14px;color:var(--tinta-900);font-family:var(--f-body);font-weight:600;font-size:.92rem;
    border-bottom:none;border-radius:999px;position:relative;
  }
  .main-nav a:hover{color:var(--verde-700);background:var(--verde-50);}
  .main-nav a.active{color:var(--verde-700);background:var(--verde-100);}
  .main-nav .nav-cta{margin-top:0;margin-left:8px;}
  .main-nav .nav-cta a{color:var(--verde-950);}
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative;
  background:linear-gradient(180deg, var(--verde-950) 0%, var(--verde-900) 55%, var(--verde-700) 100%);
  color:#fff;
  padding:76px 0 96px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(../images/hero-bg.jpg);
  background-size:cover;
  background-position:center;
  opacity:.22;
  z-index:0;
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 85% 20%, rgba(214,40,57,.18), transparent 45%);
  pointer-events:none;
  z-index:1;
}
.route-line{
  position:absolute;left:0;right:0;bottom:-2px;width:100%;height:60px;color:var(--verde-950);z-index:1;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;gap:36px;
}
.hero-eyebrow{
  font-family:var(--f-mono);text-transform:uppercase;letter-spacing:.16em;font-size:.72rem;
  color:var(--ambar-500);display:flex;align-items:center;gap:10px;margin-bottom:18px;
}
.hero-eyebrow::before{content:"";width:26px;height:2px;background:var(--ambar-500);}
.hero h1{
  font-size:clamp(2rem, 6vw, 3.4rem);
  color:#fff;
  max-width:16ch;
}
.hero h1 em{font-style:normal;color:var(--ambar-500);}
.hero p.lead{
  font-size:1.05rem;color:rgba(234,242,237,.85);max-width:52ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px;
  border-top:1px solid rgba(255,255,255,.15);padding-top:24px;
}
.hero-stats div strong{display:block;font-family:var(--f-display);font-size:1.6rem;color:#fff;}
.hero-stats div span{font-size:.78rem;color:rgba(234,242,237,.7);}

.page-hero{
  background:linear-gradient(180deg, var(--verde-950) 0%, var(--verde-700) 100%);
  color:#fff;padding:56px 0 74px;position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 90% 10%, rgba(214,40,57,.16), transparent 40%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  font-family:var(--f-mono);font-size:.75rem;letter-spacing:.06em;
  color:rgba(234,242,237,.75);margin-bottom:14px;
}
.breadcrumb a{color:var(--ambar-500);}
.page-hero h1{color:#fff;font-size:clamp(1.9rem,5vw,2.8rem);max-width:22ch;}
.page-hero p{color:rgba(234,242,237,.85);max-width:58ch;font-size:1rem;}

/* ==========================================================================
   SERVICIOS GRID
   ========================================================================== */
.servicios-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;
}
.servicio-card{
  background:#fff;border:1px solid var(--linea);border-radius:var(--radio);
  padding:26px 22px;transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.servicio-card:hover{transform:translateY(-6px);box-shadow:var(--sombra);border-color:var(--verde-100);}
.servicio-card .icon-wrap{
  width:120px;height:120px;border-radius:20px;background:var(--verde-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.servicio-card .icon-wrap img{width:68px;height:68px;object-fit:contain;}
.servicio-card h3{font-size:1.02rem;margin-bottom:6px;}
.servicio-card p{font-size:.86rem;color:var(--tinta-600);margin:0;}

/* ==========================================================================
   GALERIA
   ========================================================================== */
.galeria-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;
}
.galeria-grid a{
  position:relative;display:block;border-radius:var(--radio-sm);overflow:hidden;aspect-ratio:4/3;
  background:var(--verde-100);
}
.galeria-grid img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.galeria-grid a:hover img{transform:scale(1.08);}
.galeria-grid a::after{
  content:"";position:absolute;inset:0;background:linear-gradient(0deg, rgba(10,46,34,.55), transparent 45%);
  opacity:0;transition:opacity .3s ease;
}
.galeria-grid a:hover::after{opacity:1;}

/* ==========================================================================
   TARJETAS / VALORES / VENTAJAS
   ========================================================================== */
.cards-grid{display:grid;gap:18px;grid-template-columns:1fr;}
.info-card{
  background:#fff;border:1px solid var(--linea);border-radius:var(--radio);padding:28px;
}
.info-card .num{font-family:var(--f-mono);color:var(--ambar-600);font-size:.8rem;letter-spacing:.08em;}
.info-card h3{margin-top:8px;font-size:1.15rem;}

.split{display:grid;gap:32px;align-items:center;}
.split img{border-radius:var(--radio);box-shadow:var(--sombra-suave);}

.check-list li{
  position:relative;padding-left:30px;margin-bottom:12px;color:var(--tinta-600);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;
  background:var(--verde-100);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:9px;width:8px;height:5px;
  border-left:2px solid var(--verde-600);border-bottom:2px solid var(--verde-600);
  transform:rotate(-45deg);
}

/* ==========================================================================
   CRETIB
   ========================================================================== */
.cretib-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:10px;
}
.cretib-letra{
  background:var(--verde-950);color:#fff;border-radius:var(--radio-sm);
  padding:16px 12px;text-align:center;
}
.cretib-letra strong{
  display:block;font-family:var(--f-display);font-size:1.6rem;color:var(--ambar-500);
}
.cretib-letra span{font-size:.72rem;color:rgba(234,242,237,.8);}

/* ==========================================================================
   OFICINAS / CONTACTO
   ========================================================================== */
.oficinas-grid{display:grid;gap:18px;grid-template-columns:1fr;}
.oficina-card{
  border:1px solid var(--linea);border-radius:var(--radio);padding:26px;background:#fff;
  border-top:3px solid var(--verde-600);
}
.oficina-card h3{font-size:1.05rem;}
.oficina-card ul li{
  display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;font-size:.92rem;color:var(--tinta-600);
}
.oficina-card ul li svg{flex-shrink:0;margin-top:3px;color:var(--verde-600);}
.oficina-card a{color:var(--verde-700);font-weight:600;}

.contact-grid{display:grid;gap:36px;}
.form-card{
  background:#fff;border:1px solid var(--linea);border-radius:var(--radio);padding:30px;box-shadow:var(--sombra-suave);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px;color:var(--tinta-900);}
.field input,.field textarea{
  width:100%;padding:13px 14px;border:1px solid var(--linea);border-radius:var(--radio-sm);
  font-family:var(--f-body);font-size:.95rem;background:var(--verde-50);
  transition:border-color .25s ease, box-shadow .25s ease;
}
.field input:focus,.field textarea:focus{
  border-color:var(--verde-600);box-shadow:0 0 0 4px var(--verde-100);background:#fff;
}
.field textarea{resize:vertical;min-height:130px;}
.form-msg{padding:14px 16px;border-radius:var(--radio-sm);font-size:.9rem;margin-bottom:18px;display:none;}
.form-msg.show{display:block;}
.form-msg.ok{background:var(--verde-100);color:var(--verde-700);}
.form-msg.error{background:#FBEAEA;color:#9B2C2C;}
.hp-field{position:absolute;left:-9999px;opacity:0;}

.mapa-wrap{border-radius:var(--radio);overflow:hidden;border:1px solid var(--linea);box-shadow:var(--sombra-suave);}
.mapa-wrap iframe{width:100%;height:100%;min-height:320px;border:0;display:block;}

/* ==========================================================================
   CTA banda
   ========================================================================== */
.cta-band{
  background:var(--verde-950);color:#fff;border-radius:var(--radio);
  padding:40px 28px;display:flex;flex-direction:column;gap:20px;align-items:flex-start;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle, rgba(214,40,57,.25), transparent 70%);
}
.cta-band h2{color:#fff;font-size:1.5rem;max-width:20ch;}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{background:var(--verde-950);color:#CFE0D6;padding:64px 0 0;}
.footer-grid{
  display:grid;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand img{height:40px;margin-bottom:14px;}
.footer-brand p{color:#9FB5A9;font-size:.9rem;max-width:34ch;}
.footer-col h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px;font-family:var(--f-mono);}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#CFE0D6;font-size:.9rem;transition:color .2s ease;}
.footer-col a:hover{color:var(--ambar-500);}
.footer-col address{font-style:normal;color:#9FB5A9;font-size:.85rem;line-height:1.6;}
.social-row{display:flex;gap:10px;margin-top:16px;}
.social-row a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;transition:background .2s ease, border-color .2s ease;
}
.social-row a:hover{background:var(--ambar-500);border-color:var(--ambar-500);color:var(--verde-950);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:22px 0 26px;font-size:.8rem;color:#8CA398;
}
.footer-bottom a{color:#CFE0D6;}

/* ==========================================================================
   FLOATING BUTTONS
   ========================================================================== */
.floating-btns{
  position:fixed;right:18px;bottom:18px;z-index:600;
  display:flex;flex-direction:column;gap:12px;align-items:center;
}
.fab{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px -8px rgba(10,42,85,.45);
  border:none;transition:transform .25s ease, box-shadow .25s ease;
}
.fab:hover{transform:translateY(-4px) scale(1.05);}
.fab-whatsapp{background:#25D366;color:#fff;}
.fab-top{
  background:var(--verde-950);color:#fff;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .3s ease, transform .3s ease;
}
.fab-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.fab-whatsapp::after{
  content:"";position:absolute;width:52px;height:52px;border-radius:50%;background:#25D366;
  animation:pulse 2.4s ease-out infinite;z-index:-1;
}
@keyframes pulse{
  0%{transform:scale(.9);opacity:.55;}
  100%{transform:scale(1.6);opacity:0;}
}

/* ==========================================================================
   REVEAL ON SCROLL
   ========================================================================== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1;transform:translateY(0);}
.reveal-stagger.in > *{transition-delay:calc(var(--i,0) * 80ms);}

/* ==========================================================================
   RESPONSIVE — tablet / desktop
   ========================================================================== */
@media (min-width:640px){
  .cretib-grid{grid-template-columns:repeat(4,1fr);}
  .galeria-grid{grid-template-columns:repeat(3,1fr);}
  .oficinas-grid{grid-template-columns:repeat(3,1fr);}
}

@media (min-width:780px){
  .hero-grid{grid-template-columns:1.1fr .9fr;align-items:center;}
  .split{grid-template-columns:1fr 1fr;}
  .split.reverse .split-media{order:2;}
  .contact-grid{grid-template-columns:1.1fr .9fr;}
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:48px 44px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}

@media (min-width:960px){
  .servicios-grid{grid-template-columns:repeat(4,1fr);}
  .cards-grid{grid-template-columns:repeat(3,1fr);}
  .section{padding:88px 0;}
  .hero{padding:110px 0 130px;}
}

@media (min-width:1180px){
  .servicios-grid{grid-template-columns:repeat(5,1fr);}
}