/* ==========================================================================
   Metrobotix — Sistema de diseño (Fase 4)
   Los valores de color viven también en config/site.config.js; si cambian
   ahí, js/components.js los reescribe aquí en tiempo de carga vía
   variables CSS. Esta hoja define la estructura y los componentes.
   ========================================================================== */

:root{
  --teal-deep:#045667;
  --teal-mid:#0B8A9E;
  --teal-tint:#EAF7F9;
  --text-secondary:#5B6670;
  --text-primary:#142026;
  --white:#FFFFFF;
  --accent:#C2410C;
  --accent-hover:#9A3409;
  --accent-tint:#FCE9DF;
  --border:#E4EAEC;
  --radius-card:16px;
  --radius-btn:8px;
  --max-w:1200px;
  --shadow-rest:0 1px 2px rgba(4,86,103,0.05), 0 1px 1px rgba(4,86,103,0.03);
  --shadow-hover:0 16px 32px rgba(4,86,103,0.14);
  --dot-pattern:radial-gradient(rgba(11,138,158,0.18) 1.5px, transparent 1.5px);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--text-primary);
  line-height:1.6;
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:'Sora',-apple-system,sans-serif;font-weight:700;line-height:1.15;color:var(--teal-deep);}
h1{font-size:clamp(2rem,4vw,3.25rem);}
h2{font-size:clamp(1.6rem,3vw,2.1rem);}
h3{font-size:1.2rem;font-weight:600;}
p{color:var(--text-secondary);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px;}
section{padding:88px 0;}
@media (max-width:768px){ section{padding:56px 0;} }
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--teal-deep);color:#fff;
  padding:12px 20px;z-index:100;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

/* Header */
header.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:var(--max-w);margin:0 auto;}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:36px;width:36px;object-fit:contain;}
.brand span{font-family:'Sora',sans-serif;font-weight:700;color:var(--teal-deep);font-size:1.1rem;}
.main-nav ul{display:flex;gap:28px;}
.main-nav a{font-size:0.92rem;font-weight:500;color:var(--text-primary);display:inline-block;position:relative;padding-bottom:2px;}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .2s ease;}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--teal-mid);}
.main-nav a:hover::after,.main-nav a[aria-current="page"]::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:16px;}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;}
@media (max-width:900px){
  .main-nav{position:fixed;inset:64px 0 0 0;background:var(--white);padding:24px;transform:translateX(100%);transition:transform .2s ease;overflow-y:auto;}
  .main-nav.open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;gap:4px;}
  .main-nav a{display:block;padding:14px 8px;border-bottom:1px solid var(--border);}
  .menu-toggle{display:block;}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:var(--radius-btn);font-weight:600;font-size:0.95rem;cursor:pointer;border:1.5px solid transparent;transition:background .15s ease,border-color .15s ease;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-hover);}
.btn-secondary{border-color:var(--teal-mid);color:var(--teal-deep);background:transparent;}
.btn-secondary:hover{background:var(--teal-tint);}
.btn-sm{padding:10px 18px;font-size:0.85rem;}
.btn:focus-visible{outline:2px solid var(--teal-mid);outline-offset:2px;}

/* Breadcrumbs */
.breadcrumbs{padding:16px 0 0;font-size:0.82rem;color:var(--text-secondary);}
.breadcrumbs a{color:var(--teal-mid);}
.breadcrumbs a:hover{text-decoration:underline;}

/* Hero */
.hero{padding:64px 0 56px;position:relative;overflow:hidden;}
.hero::before{content:"";position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--teal-tint) 0%,transparent 70%);top:-260px;right:-180px;z-index:0;pointer-events:none;}
.hero::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--accent-tint) 0%,transparent 70%);bottom:-200px;left:-140px;z-index:0;pointer-events:none;}
.hero .hero-grid{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:56px;align-items:center;}
@media (max-width:900px){ .hero-grid{grid-template-columns:1fr;} }
.hero h1{margin-bottom:18px;}
.hero p.lead{font-size:1.1rem;max-width:540px;margin-bottom:28px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero-visual{
  aspect-ratio:4/3;border-radius:var(--radius-card);
  background-image:var(--dot-pattern),linear-gradient(135deg,var(--teal-tint),var(--white));
  background-size:18px 18px, cover;
  border:1px solid var(--border);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;text-align:center;padding:24px;color:var(--teal-mid);
  box-shadow:var(--shadow-rest);
}
.hero-visual svg{background:var(--white);border-radius:50%;padding:14px;box-shadow:var(--shadow-rest);}
.hero-visual span{color:var(--text-secondary);font-size:0.85rem;max-width:260px;}
.page-header{padding:48px 0 16px;position:relative;overflow:hidden;}
.page-header::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--teal-tint) 0%,transparent 70%);top:-220px;right:-140px;z-index:0;pointer-events:none;}
.page-header .container{position:relative;z-index:1;}
.page-header p.lead{max-width:640px;}

/* Trust bar */
.trust{padding:36px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.trust p{text-align:center;font-size:0.78rem;letter-spacing:0.05em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:20px;}
.trust-logos{display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap;}
.trust-chip{padding:10px 18px;border:1px solid var(--border);border-radius:8px;font-size:0.85rem;font-weight:600;color:var(--teal-deep);background:var(--teal-tint);transition:transform .15s ease,box-shadow .15s ease;}
.trust-chip:hover{transform:translateY(-2px);box-shadow:var(--shadow-rest);}
.trust-chip:nth-child(2n){color:var(--accent-hover);background:var(--accent-tint);}

/* Section helpers */
.section-head{max-width:640px;margin-bottom:44px;}
.eyebrow{color:var(--accent);font-weight:600;font-size:0.78rem;letter-spacing:0.07em;text-transform:uppercase;margin-bottom:10px;display:block;}
.bg-tint{background:var(--teal-tint);}

/* Cards grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media (max-width:1000px){ .grid-4{grid-template-columns:1fr 1fr;} .grid-3{grid-template-columns:1fr 1fr;} }
@media (max-width:640px){ .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;} }

.card{border:1px solid var(--border);border-radius:var(--radius-card);padding:32px;background:var(--white);box-shadow:var(--shadow-rest);transition:box-shadow .2s ease,transform .2s ease;}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.card.card-sm{padding:24px;}
.icon-circle{width:52px;height:52px;border-radius:50%;background:var(--teal-tint);display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--teal-mid);flex-shrink:0;}
.card h3{margin-bottom:10px;color:var(--text-primary);}
.card p{margin-bottom:16px;}

/* Ritmo de color: cada segunda/cuarta tarjeta usa el acento en vez del teal,
   para que el color de conversión aparezca también fuera de los botones. */
.grid-3 .card:nth-child(2) .icon-circle,
.grid-4 .card:nth-child(2) .icon-circle,
.grid-4 .card:nth-child(4) .icon-circle{background:var(--accent-tint);color:var(--accent);}

.thumb-card{border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;background:var(--white);box-shadow:var(--shadow-rest);transition:box-shadow .2s ease,transform .2s ease;}
.thumb-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.thumb{
  aspect-ratio:1;display:flex;align-items:center;justify-content:center;color:var(--teal-mid);
  background-image:var(--dot-pattern);background-size:14px 14px;background-color:var(--teal-tint);
}
.grid-4 .thumb-card:nth-child(2) .thumb,
.grid-4 .thumb-card:nth-child(4) .thumb{background-color:var(--accent-tint);color:var(--accent);}
.thumb-card .thumb-body{padding:16px;}
.thumb-card h3{font-size:1rem;margin-bottom:4px;}
.thumb-card p{font-size:0.85rem;margin-bottom:0;}

/* Process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
@media (max-width:900px){ .process-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:600px){ .process-grid{grid-template-columns:1fr;} }
.step-num{font-family:'Sora',sans-serif;font-weight:700;font-size:1.9rem;color:var(--teal-mid);opacity:0.35;display:block;margin-bottom:10px;}
.process-grid > div:nth-child(2) .step-num,
.process-grid > div:nth-child(4) .step-num{color:var(--accent);}

/* FAQ */
.faq-list{max-width:780px;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:'Sora',sans-serif;font-weight:600;font-size:1rem;color:var(--text-primary);}
.faq-plus{color:var(--teal-mid);font-size:1.3rem;font-weight:400;transition:transform .15s ease;flex-shrink:0;}
.faq-item.open .faq-plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-item.open .faq-a{max-height:400px;padding-bottom:20px;}
.faq-a p{font-size:0.95rem;}

/* CTA final */
.cta-final{background:var(--teal-deep);border-radius:24px;padding:60px 44px;text-align:center;color:#fff;position:relative;overflow:hidden;}
.cta-final::before{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(194,65,12,0.35) 0%,transparent 70%);top:-140px;right:-80px;pointer-events:none;}
.cta-final::after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,0.08) 0%,transparent 70%);bottom:-140px;left:-80px;pointer-events:none;}
.cta-final h2,.cta-final p,.cta-final a{position:relative;z-index:1;}
.cta-final h2{color:#fff;margin-bottom:12px;}
.cta-final p{color:#CDE7EC;max-width:520px;margin:0 auto 28px;}
@media (max-width:600px){ .cta-final{padding:36px 22px;} }

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
@media (max-width:900px){ .contact-grid{grid-template-columns:1fr;} }
.contact-info p{margin-bottom:8px;}
.contact-info strong{color:var(--text-primary);}
.map-ph{
  aspect-ratio:4/3;border-radius:var(--radius-card);
  background-image:var(--dot-pattern);background-size:18px 18px;background-color:var(--teal-tint);
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;color:var(--teal-mid);border:1px solid var(--border);box-shadow:var(--shadow-rest);
}
.contact-form{display:grid;gap:14px;}
.contact-form label{font-size:0.85rem;font-weight:600;color:var(--text-primary);margin-bottom:4px;display:block;}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:0.95rem;color:var(--text-primary);
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:2px solid var(--teal-mid);outline-offset:1px;}

.badge-pending{display:inline-block;margin-top:10px;font-size:0.72rem;font-weight:600;color:var(--accent);background:#FCE9DF;padding:3px 10px;border-radius:6px;}

/* Footer */
footer.site-footer{background:var(--text-primary);color:#B7C0C4;padding:52px 0 24px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px;}
@media (max-width:768px){ .footer-grid{grid-template-columns:1fr 1fr;} }
footer h3{color:#fff;font-size:0.9rem;margin-bottom:14px;}
footer li{margin-bottom:9px;font-size:0.87rem;}
footer a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:22px;font-size:0.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-social{display:flex;gap:12px;margin-top:12px;}
.footer-social a{width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,0.08);display:flex;align-items:center;justify-content:center;}

/* Animación de aparición al hacer scroll — activada por main.js.
   Sin JS o con prefers-reduced-motion, el contenido es visible de inmediato
   (ver regla al final de este bloque y la comprobación en main.js). */
.reveal-target{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease;}
.reveal-target.is-visible{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;}
  .reveal-target{opacity:1;transform:none;}
}