/* EXPORAC SAS — Estilos */
/* Archivo: assets/css/styles.css */

:root{
  --primary:#1a3a52;--secondary:#00D4FF;--accent:#FFB800;--success:#00FF88;--danger:#FF3860;
  --dark:#0A0E27;--light:#F8F9FA;--white:#fff;--text:#333;--text-light:#666;
  --shadow:0 10px 30px rgba(0,0,0,.1);--transition:.3s cubic-bezier(.4,0,.2,1)
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;line-height:1.6;color:var(--text);background:var(--light)}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* PRELOADER */
.preloader{position:fixed;inset:0;background:var(--dark);display:flex;align-items:center;justify-content:center;z-index:10000;transition:opacity .5s,visibility .5s}
.preloader.hidden{opacity:0;visibility:hidden}
.loader{position:relative;width:150px;height:150px}
.loader-circle{position:absolute;border:3px solid transparent;border-radius:50%;animation:rotate 1.5s linear infinite}
.loader-circle:nth-child(1){width:150px;height:150px;border-top-color:var(--secondary)}
.loader-circle:nth-child(2){width:120px;height:120px;top:15px;left:15px;border-top-color:var(--accent);animation-delay:.2s}
.loader-circle:nth-child(3){width:90px;height:90px;top:30px;left:30px;border-top-color:var(--success);animation-delay:.4s}
.loader-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-weight:800;letter-spacing:2px}
@keyframes rotate{to{transform:rotate(360deg)}}

/* HEADER */
header{position:fixed;top:0;left:0;right:0;background:rgba(26,58,82,.95);backdrop-filter:blur(10px);z-index:1000;transition:var(--transition)}
header.scrolled{background:rgba(26,58,82,.98);box-shadow:0 5px 20px rgba(0,0,0,.3)}
.navbar{padding:12px 0}
.nav-container{display:flex;align-items:center;justify-content:space-between}
.logo-text{font-size:1.7rem;font-weight:900;background:linear-gradient(135deg,var(--secondary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-decoration:none}
.nav-menu{display:flex;list-style:none;gap:1.5rem}
.nav-link{color:#fff;text-decoration:none;padding:.5rem 1rem;border-radius:8px;transition:var(--transition)}
.nav-link:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.hamburger{display:none;flex-direction:column;gap:4px;background:transparent;border:0;cursor:pointer}
.hamburger span{width:26px;height:3px;background:var(--secondary);transition:.3s}

/* HERO */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--dark) 0%,var(--primary) 100%);position:relative;overflow:hidden;padding-top:84px}
.hero-bg,.hero-particles{position:absolute;inset:0}
.particle{position:absolute;width:4px;height:4px;background:var(--secondary);border-radius:50%;opacity:.5;animation:float 20s infinite linear}
@keyframes float{0%{transform:translateY(100vh) translateX(0);opacity:0}10%,90%{opacity:.5}100%{transform:translateY(-100vh) translateX(100px);opacity:0}}
.hero-content{text-align:center;color:#fff;position:relative;z-index:2;padding:2rem 0}
.hero-title{font-size:clamp(2.2rem,8vw,4.5rem);font-weight:900;margin-bottom:.6rem}
.gradient-text{background:linear-gradient(90deg,#fff,var(--secondary),#fff);background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:shine 3s linear infinite}
@keyframes shine{to{background-position:200% center}}
.hero-subtitle{font-size:1.25rem;color:#e6fbff}
.hero-description{opacity:.9;margin-top:.4rem}
.hero-stats{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;margin:1.5rem 0}
.hero-stat{display:flex;align-items:center;gap:.6rem;padding:.7rem 1.2rem;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);border-radius:50px;transition:transform .2s}
.hero-stat:hover{transform:translateY(-3px)}
.hero-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* Botones */
.btn{padding:1rem 2rem;border:none;border-radius:50px;font-weight:700;cursor:pointer;transition:var(--transition);text-decoration:none;display:inline-flex;align-items:center;gap:.5rem}
.btn-primary{background:linear-gradient(135deg,var(--secondary) 0%,#0099CC 100%);color:#fff;box-shadow:0 4px 15px rgba(0,212,255,.35)}
.btn-secondary{background:transparent;color:#fff;border:2px solid var(--secondary)}
.btn:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,212,255,.55)}
.btn-block{width:100%;justify-content:center}

/* Secciones */
section{padding:80px 0}
.section-header{text-align:center;margin-bottom:40px}
.section-title{font-size:2.2rem;font-weight:900;color:var(--primary);position:relative;display:inline-block;margin-bottom:8px}
.section-title::after{content:'';position:absolute;left:50%;transform:translateX(-50%);bottom:-10px;width:100px;height:4px;background:linear-gradient(135deg,var(--secondary),var(--accent));border-radius:2px}
.section-subtitle{color:var(--text-light);max-width:660px;margin:0 auto}

/* About */
.about{background:#fff}
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.about-card{background:var(--light);padding:24px;border-radius:16px;text-align:center;transition:var(--transition)}
.about-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.about-icon{width:76px;height:76px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;font-size:28px;color:#fff;background:linear-gradient(135deg,var(--secondary),var(--accent));animation:soft-float 6s ease-in-out infinite}
@keyframes soft-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.values-list{list-style:none;text-align:left}
.values-list li{display:flex;align-items:center;gap:8px;padding:6px 0}
.values-list i{color:var(--success)}

/* Servicios */
#servicios{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}
#servicios .section-title,#servicios .section-subtitle{color:#fff}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.service-card{background:#fff;border-radius:14px;padding:22px;text-align:center;transition:var(--transition);position:relative;overflow:hidden}
.service-card::after{content:'';position:absolute;inset:auto -30% -60% -30%;height:120%;background:radial-gradient(closest-side,rgba(0,212,255,.15),transparent);transform:translateY(40%);transition:transform .35s}
.service-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(0,0,0,.18)}
.service-card:hover::after{transform:translateY(0)}
.service-card i{font-size:34px;color:var(--secondary);margin-bottom:10px}

/* Red Global */
.network{background:#fff}
.countries-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px}
.country-card{background:var(--light);padding:18px;border-radius:12px;text-align:center;box-shadow:0 3px 10px rgba(0,0,0,.08);transition:var(--transition);cursor:default}
.country-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 10px 30px rgba(0,0,0,.18)}
.flag{font-size:36px;margin-bottom:8px}

/* Certificaciones */
.certifications{background:var(--light)}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.cert-card{background:#fff;border-radius:12px;text-align:center;padding:24px;box-shadow:0 3px 10px rgba(0,0,0,.08)}
.cert-card i{font-size:36px;color:var(--secondary);margin-bottom:10px}

/* Contacto */
.contact{background:linear-gradient(135deg,var(--dark) 0%,var(--primary) 100%);color:#fff}
.contact .section-title,.contact .section-subtitle{color:#fff}
.contact-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:36px}
.contact-info h3{color:var(--secondary);margin-bottom:14px}
.contact-item{display:flex;gap:12px;align-items:flex-start;margin:10px 0}
.contact-item i{width:26px;margin-top:4px;color:var(--secondary)}
.contact-form{background:#fff;color:var(--text);border-radius:12px;padding:22px}
.form-group{margin-bottom:14px}
label{display:block;margin-bottom:6px;font-weight:700;color:var(--primary)}
.form-control{width:100%;padding:.8rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem}
.form-control:focus{outline:0;border-color:var(--secondary);box-shadow:0 0 0 3px rgba(0,212,255,.15)}
textarea.form-control{resize:vertical;min-height:120px}

/* Footer */
footer{background:var(--dark);color:#fff;padding:36px 0 16px}
.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:24px;margin-bottom:12px}
.footer-section h4{color:var(--secondary);margin-bottom:10px}
.footer-section ul{list-style:none}
.footer-section a{color:rgba(255,255,255,.75);text-decoration:none}
.footer-section a:hover{color:var(--secondary)}
.social-links{display:flex;gap:10px;margin-top:8px}
.social-links a{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.1)}
.social-links a:hover{background:var(--secondary);color:#fff}
.footer-bottom{text-align:center;color:rgba(255,255,255,.6);padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}

/* Botones flotantes y back-to-top */
.floating-buttons{position:fixed;right:18px;bottom:22px;z-index:999}
.fab-btn{display:block;width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;line-height:56px;text-align:center;font-size:1.6rem;margin-bottom:10px;text-decoration:none;box-shadow:0 5px 20px rgba(0,0,0,.3);transition:transform .2s}
.fab-btn:hover{transform:scale(1.08)}
.fab-btn.email{background:linear-gradient(135deg,#667eea,#764ba2)}
.back-to-top{position:fixed;right:18px;bottom:96px;width:44px;height:44px;border-radius:50%;border:0;background:#00c2ff;color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.26);opacity:0;visibility:hidden;transition:.25s;z-index:999}
.back-to-top.show{opacity:1;visibility:visible}

/* Notificaciones / loader del form */
.notification{position:fixed;left:50%;transform:translateX(-50%);bottom:24px;display:flex;gap:8px;align-items:center;padding:12px 16px;border-radius:10px;background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.15);z-index:10000}
.notification.success{border-left:6px solid var(--success)}
.notification.error{border-left:6px solid var(--danger)}
.form-loader{position:fixed;inset:0;display:grid;place-items:center;background:rgba(0,0,0,.35);z-index:10000}
.form-loader .spinner{width:54px;height:54px;border-radius:50%;border:4px solid #fff;border-top-color:var(--secondary);animation:rotate 1s linear infinite}

/* Responsive */
@media (max-width:1024px){.contact-grid{grid-template-columns:1fr}}
@media (max-width:768px){
  .nav-menu{position:fixed;inset:70px 0 auto 0;background:var(--primary);flex-direction:column;gap:0;padding:18px 0;transform:translateY(-120%);transition:.3s}
  .nav-menu.active{transform:translateY(0)}
  .hamburger{display:flex}
  .hamburger.active span:nth-child(2){opacity:0}
  .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero{padding-top:92px}
  .hero-title{font-size:2.4rem}
  section{padding:60px 0}
  .services-grid,.countries-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:480px){
  .services-grid,.countries-grid{grid-template-columns:1fr}
  .btn{width:100%}
}