/* Zentro Administración Integral — estilos del sitio
   Layout: corporativo clásico. Portada fotográfica a todo ancho, secciones centradas, tarjetas con sombra suave. */
:root{
  --azul:#162945;
  --azul-medio:#1f3a5f;
  --azul-oscuro:#0e1c31;
  --bronce:#AA6337;
  --bronce-hover:#935430;
  --bronce-claro:#cd8355;
  --texto:#5b6472;
  --titulo:#162945;
  --gris:#f5f6f8;
  --borde:#e4e8ee;
  --blanco:#ffffff;
  --sombra:0 10px 30px rgba(22,41,69,.08);
  --sombra-hover:0 18px 40px rgba(22,41,69,.14);
  --radio:12px;
  --fuente:"Poppins",Arial,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:var(--fuente);font-size:16px;line-height:1.7;color:var(--texto);background:var(--blanco);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--fuente);color:var(--titulo);margin:0;line-height:1.25;text-wrap:balance}
h2{font-size:clamp(1.75rem,1.2rem + 1.6vw,2.5rem);font-weight:700;letter-spacing:-.01em}
h3{font-size:1.1rem;font-weight:600}
p{margin:0}
:focus-visible{outline:2px solid var(--bronce);outline-offset:3px}

.container{max-width:1200px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.section{padding-block:96px}
.section-gray{background:var(--gris)}
.section-dark{background:var(--azul);color:#c9d2df}
.section-dark h2,.section-dark h3{color:var(--blanco)}

.label{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--bronce);margin-bottom:12px}
.label-light{color:var(--bronce-claro)}
.section-title{text-align:center;max-width:720px;margin:0 auto 56px}
.section-title h2::after{content:"";display:block;width:56px;height:3px;background:var(--bronce);margin:18px auto 0;border-radius:2px}
.section-title p{margin-top:18px}
.lead{font-size:1.12rem;color:var(--titulo);font-weight:500;margin-bottom:14px}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--fuente);font-weight:600;font-size:.95rem;padding:13px 26px;border-radius:6px;border:2px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap}
.btn-lg{padding:16px 32px;font-size:1rem}
.btn-block{width:100%}
.btn-primary{background:var(--bronce);color:var(--blanco)}
.btn-primary:hover{background:var(--bronce-hover);transform:translateY(-2px);box-shadow:0 10px 24px rgba(170,99,55,.35)}
.btn-outline-light{border-color:rgba(255,255,255,.8);color:var(--blanco)}
.btn-outline-light:hover{background:var(--blanco);color:var(--azul)}

/* Barra superior */
.topbar{background:var(--azul-oscuro);color:#aeb9c9;font-size:.8rem}
.topbar-in{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-block:9px}
.topbar-links{display:flex;gap:24px}
.topbar a:hover{color:var(--bronce-claro)}

/* Encabezado */
.header{position:absolute;left:0;right:0;top:auto;z-index:50;transition:background .3s,box-shadow .3s,top .3s}
.header-in{display:flex;align-items:center;gap:32px;height:86px}
.header.scrolled,.header.menu-open{position:fixed;top:env(safe-area-inset-top,0px);background:var(--blanco);box-shadow:0 4px 20px rgba(14,28,49,.08)}
.header.scrolled .header-in{height:74px}
.logo{display:flex;align-items:center;gap:12px;flex:none}
.logo img{width:42px;height:auto}
.logo-dark{display:none}
.header.scrolled .logo-light,.header.menu-open .logo-light{display:none}
.header.scrolled .logo-dark,.header.menu-open .logo-dark{display:block}
.logo-text{display:flex;flex-direction:column;line-height:1}
.logo-text strong{font-size:1.35rem;font-weight:600;letter-spacing:.24em;color:var(--blanco)}
.logo-text small{font-size:.56rem;letter-spacing:.2em;color:var(--bronce-claro);margin-top:6px;font-weight:500}
.header.scrolled .logo-text strong,.header.menu-open .logo-text strong{color:var(--azul)}
.header.scrolled .logo-text small,.header.menu-open .logo-text small{color:var(--bronce)}
.menu{display:flex;gap:30px;margin-left:auto}
.menu a{color:var(--blanco);font-size:.93rem;font-weight:500;position:relative;padding:6px 0}
.menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--bronce-claro);transition:width .25s}
.menu a:hover::after{width:100%}
.header.scrolled .menu a{color:var(--azul)}
.header-btn{padding:11px 22px;font-size:.88rem}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:0;border-radius:6px;background:rgba(255,255,255,.12);flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.burger span{width:20px;height:2px;background:var(--blanco);display:block}
.header.scrolled .burger,.header.menu-open .burger{background:var(--gris)}
.header.scrolled .burger span,.header.menu-open .burger span{background:var(--azul)}

/* Portada */
.hero{position:relative;min-height:680px;display:flex;align-items:center;overflow:hidden;background:var(--azul)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 35%}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,28,49,.94) 0%,rgba(22,41,69,.82) 45%,rgba(22,41,69,.35) 100%)}
.hero-content{position:relative;padding-block:190px 150px;max-width:1200px;width:100%}
.hero-content>*{max-width:640px}
.hero-tag{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--bronce-claro);border:1px solid rgba(205,131,85,.5);padding:7px 14px;border-radius:40px;margin-bottom:24px}
.hero h1{color:var(--blanco);font-size:clamp(2.2rem,1.4rem + 3vw,3.6rem);font-weight:700;line-height:1.12;letter-spacing:-.015em;margin-bottom:22px}
.hero p{color:#d3dae4;font-size:1.1rem;max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}

/* Franja de beneficios */
.features{position:relative;z-index:5;margin-top:-70px}
.features-card{background:var(--blanco);border-radius:var(--radio);box-shadow:var(--sombra-hover);display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.feature{display:flex;gap:16px;align-items:flex-start;padding:30px 26px}
.feature+.feature{border-left:1px solid var(--borde)}
.feature-ic,.service-ic,.ci{flex:none;display:grid;place-items:center;border-radius:10px}
.feature-ic{width:48px;height:48px;background:rgba(170,99,55,.1)}
.feature-ic svg,.service-ic svg,.ci svg{width:24px;height:24px;fill:none;stroke:var(--bronce);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature h3{font-size:1rem;margin-bottom:4px}
.feature p{font-size:.88rem;line-height:1.5}

/* Nosotros */
.about{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.about-media{position:relative;padding:0 40px 60px 0}
.about-main{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:var(--radio)}
.about-small{position:absolute;right:0;bottom:0;width:52%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radio);border:8px solid var(--blanco);box-shadow:var(--sombra-hover)}
.about-badge{position:absolute;left:-20px;top:40px;background:var(--bronce);color:var(--blanco);padding:20px 24px;border-radius:var(--radio);box-shadow:var(--sombra-hover);display:flex;flex-direction:column;max-width:170px}
.about-badge strong{font-size:2rem;line-height:1;font-weight:700}
.about-badge span{font-size:.82rem;line-height:1.35;margin-top:6px}
.about-text h2{margin-bottom:20px}
.about-text>p{margin-bottom:12px}
.check-list{list-style:none;padding:0;margin:24px 0 34px;display:grid;grid-template-columns:1fr 1fr;gap:14px 24px}
.check-list li{display:flex;gap:10px;align-items:flex-start;color:var(--titulo);font-weight:500;font-size:.95rem;line-height:1.45}
.check-list li::before{content:"";flex:none;width:20px;height:20px;border-radius:50%;margin-top:1px;background:var(--bronce) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center/12px no-repeat}

/* Tipos de inmueble */
.types{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.type-card{position:relative;border-radius:var(--radio);overflow:hidden;aspect-ratio:3/4;box-shadow:var(--sombra)}
.type-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.type-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,28,49,0) 45%,rgba(14,28,49,.88) 100%)}
.type-card span{position:absolute;left:24px;right:24px;bottom:22px;z-index:1;color:var(--blanco);font-weight:600;font-size:1.08rem;padding-top:12px;border-top:2px solid var(--bronce-claro)}
.type-card:hover img{transform:scale(1.07)}

/* Servicios */
.services{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.service{background:var(--blanco);border:1px solid var(--borde);border-radius:var(--radio);padding:38px 32px;transition:transform .3s,box-shadow .3s,border-color .3s}
.service:hover{transform:translateY(-6px);box-shadow:var(--sombra-hover);border-color:transparent}
.service-ic{width:60px;height:60px;background:var(--azul);margin-bottom:24px;transition:background .3s}
.service-ic svg{stroke:var(--bronce-claro);width:28px;height:28px}
.service:hover .service-ic{background:var(--bronce)}
.service:hover .service-ic svg{stroke:var(--blanco)}
.service h3{margin-bottom:10px}
.service p{font-size:.94rem}

/* Tecnología */
.tech{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.tech-text h2{margin-bottom:18px}
.tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:36px}
.tech-item{padding-left:18px;border-left:2px solid var(--bronce-claro)}
.tech-item h3{font-size:1rem;margin-bottom:6px}
.tech-item p{font-size:.9rem;line-height:1.55}
.tech-media{position:relative}
.tech-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radio)}
.chat-card{position:absolute;left:-40px;bottom:-36px;width:300px;max-width:85%;background:var(--blanco);border-radius:var(--radio);box-shadow:0 20px 50px rgba(0,0,0,.3);padding:18px;display:flex;flex-direction:column;gap:10px}
.chat-top{display:flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;color:var(--titulo);padding-bottom:10px;border-bottom:1px solid var(--borde)}
.dot{width:8px;height:8px;border-radius:50%;background:#25a35a}
.msg{font-size:.82rem;line-height:1.5;padding:10px 12px;border-radius:10px;max-width:90%}
.msg-user{align-self:flex-end;background:#e8f5ec;color:#1d3b2a;border-bottom-right-radius:2px}
.msg-bot{align-self:flex-start;background:var(--gris);color:var(--titulo);border-bottom-left-radius:2px}

/* Proceso */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:30px;position:relative}
.steps::before{content:"";position:absolute;top:36px;left:12.5%;right:12.5%;border-top:2px dashed #d3c2b5}
.step{text-align:center;position:relative}
.step-n{width:72px;height:72px;border-radius:50%;background:var(--blanco);border:2px solid var(--bronce);color:var(--bronce);display:grid;place-items:center;margin:0 auto 22px;font-size:1.5rem;font-weight:700;box-shadow:0 0 0 8px var(--blanco);transition:background .3s,color .3s}
.step:hover .step-n{background:var(--bronce);color:var(--blanco)}
.step h3{margin-bottom:10px}
.step p{font-size:.93rem}

/* Llamado */
.cta{position:relative;overflow:hidden;background:var(--azul)}
.cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cta-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(22,41,69,.95),rgba(22,41,69,.85) 60%,rgba(170,99,55,.75))}
.cta-in{position:relative;display:flex;justify-content:space-between;align-items:center;gap:40px;padding-block:80px}
.cta h2{color:var(--blanco);font-size:clamp(1.5rem,1.1rem + 1.3vw,2.2rem);margin-bottom:10px}
.cta p{color:#d3dae4}

/* Contacto */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start}
.contact-info h2{margin-bottom:16px}
.contact-list{list-style:none;padding:0;margin:36px 0 0;display:flex;flex-direction:column;gap:24px}
.contact-list li{display:flex;gap:16px;align-items:flex-start}
.ci{width:50px;height:50px;background:var(--blanco);box-shadow:var(--sombra)}
.contact-list div{display:flex;flex-direction:column;min-width:0;overflow-wrap:anywhere}
.contact-list div{display:block}
.contact-list small{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--bronce);font-weight:600}
.contact-list a,.contact-list span{color:var(--titulo);font-weight:500}
.contact-list a{display:inline}
.contact-list li:nth-child(2) a{display:block}
.contact-list a:hover{color:var(--bronce)}
.form{background:var(--blanco);border-radius:var(--radio);box-shadow:var(--sombra-hover);padding:44px;display:flex;flex-direction:column;gap:18px}
.form h3{font-size:1.4rem;margin-bottom:6px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field label{font-size:.85rem;font-weight:500;color:var(--titulo)}
.field input,.field select,.field textarea{font-family:var(--fuente);font-size:.95rem;color:var(--titulo);background:var(--gris);border:1px solid var(--borde);border-radius:8px;padding:13px 15px;width:100%;transition:border-color .2s,background .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--bronce);background:var(--blanco)}
.form-error{color:#b3361f;font-size:.88rem}
.form-ok{color:var(--titulo);font-size:.88rem}
.form-ok a{color:var(--bronce);font-weight:600;text-decoration:underline}

/* Pie */
.footer{background:var(--azul-oscuro);color:#9aa7b9;font-size:.9rem;padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px}
.footer-brand img{width:110px;height:auto;margin-bottom:20px}
.footer-brand p{max-width:300px;line-height:1.7}
.footer h4{color:var(--blanco);font-size:1rem;font-weight:600;margin-bottom:20px}
.footer-grid>div{display:flex;flex-direction:column;gap:10px;min-width:0;overflow-wrap:anywhere}
.footer-grid>.footer-brand{display:block}
.footer a:hover{color:var(--bronce-claro)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:56px;padding-block:24px;border-top:1px solid rgba(255,255,255,.1);font-size:.82rem}

/* WhatsApp flotante */
.wa{position:fixed;right:calc(24px + env(safe-area-inset-right,0px));bottom:calc(24px + env(safe-area-inset-bottom,0px));z-index:60;width:58px;height:58px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.25);transition:transform .25s}
.wa:hover{transform:scale(1.08)}
.wa svg{width:32px;height:32px;fill:#ffffff}

/* Animación de entrada */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* Responsive */
@media (max-width:1080px){
  .menu,.header-btn{display:none}
  .burger{display:flex}
  .menu.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--blanco);padding:8px max(20px,env(safe-area-inset-left,0px)) 20px;box-shadow:0 12px 24px rgba(14,28,49,.1)}
  .menu.open a{color:var(--azul);padding:14px 0;border-bottom:1px solid var(--borde)}
  .features-card{grid-template-columns:1fr 1fr}
  .feature:nth-child(3){border-left:0}
  .feature:nth-child(n+3){border-top:1px solid var(--borde)}
  .about,.tech,.contact{grid-template-columns:1fr;gap:56px}
  .about-media{max-width:560px}
  .types{grid-template-columns:repeat(2,minmax(0,1fr))}
  .services{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:48px}
  .steps::before{display:none}
  .chat-card{left:16px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-in{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .topbar{display:none}
  .header{top:auto}
  .header-in{height:72px}
  .section{padding-block:72px}
  .hero{min-height:0}
  .hero-content{padding-block:130px 120px}
  .hero-overlay{background:linear-gradient(180deg,rgba(14,28,49,.92),rgba(22,41,69,.8))}
  .hero-btns .btn{width:100%}
  .features{margin-top:-60px}
  .features-card{grid-template-columns:1fr}
  .feature+.feature{border-left:0;border-top:1px solid var(--borde)}
  .feature{padding:22px}
  .about-media{padding:0 0 50px}
  .about-badge{left:12px;top:12px;padding:14px 16px}
  .about-badge strong{font-size:1.5rem}
  .check-list{grid-template-columns:1fr}
  .types,.services,.steps,.tech-grid,.form-row,.footer-grid{grid-template-columns:1fr}
  .type-card{aspect-ratio:16/10}
  .service{padding:30px 24px}
  .form{padding:28px 22px}
  .chat-card{position:relative;left:0;bottom:0;margin-top:-40px;margin-inline:auto;width:auto}
  .logo-text small{display:none}
  .hero-tag{font-size:.68rem;letter-spacing:.1em}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
  .reveal{opacity:1;transform:none}
}