:root {
    --navy: #020c1b;
    --navy-light: #0a192f;
    --blue: #007bff;
    --white: #e6f1ff;
    --slate: #8892b0;
}

* { margin:0; padding:0; box-sizing: border-box; }
body { font-family: 'Open Sans', sans-serif; background: #fff; color: #333; line-height: 1.6; scroll-behavior: smooth; }

.container { max-width: 1200px; margin: auto; padding: 0 20px; }
.section-gap { padding: 90px 0; }

/* Header */
header { background: var(--navy); height: 80px; display: flex; align-items: center; position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid rgba(255,255,255,0.1); }
.nav-flex { width: 100%; display: flex; justify-content: space-between; align-items: center; }
.logo { color: #fff; font-family: 'Montserrat'; font-weight: 700; font-size: 1.2rem; }
.logo span { color: var(--blue); }
.nav-links { list-style: none; display: flex; }
.nav-links a { color: var(--white); text-decoration: none; margin-left: 30px; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; transition: 0.3s; }
.nav-links a:hover { color: var(--blue); }

/* Hero */
.hero { 
    height: 80vh; 
    background: linear-gradient(rgba(2, 12, 27, 0.85), rgba(2, 12, 27, 0.85)), url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?q=80&w=2000') center/cover;
    display: flex; align-items: center; justify-content: center; text-align: center; color: #fff; padding: 0 20px;
}
.badge { background: var(--blue); padding: 6px 16px; border-radius: 20px; font-size: 0.7rem; font-weight: bold; margin-bottom: 20px; display: inline-block; }
.hero h1 { font-family: 'Montserrat'; font-size: 3.8rem; margin-bottom: 5px; }
.slogan { font-size: 1.4rem; color: var(--slate); margin-bottom: 40px; font-style: italic; }

/* Botones */
.btn { padding: 14px 30px; border-radius: 4px; text-decoration: none; font-weight: bold; transition: 0.3s; display: inline-block; }
.btn-main { background: var(--blue); color: #fff; border: none; }
.btn-alt { border: 2px solid #fff; color: #fff; margin-left: 10px; }
.btn:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(0,0,0,0.4); }

/* Marcas */
.brands-bar { background: #fdfdfd; padding: 40px 0; border-bottom: 1px solid #eee; }
.brand-grid { display: flex; justify-content: space-around; flex-wrap: wrap; align-items: center; gap: 20px; }
.brand-grid img { height: 30px; filter: grayscale(1); opacity: 0.4; transition: 0.3s; }
.brand-grid img:hover { filter: grayscale(0); opacity: 1; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.section-title { font-family: 'Montserrat'; font-size: 2.2rem; margin-bottom: 25px; }
.section-title.light { color: #fff; text-align: center; margin-bottom: 50px; }
.vision-box { background: var(--navy-light); color: #fff; padding: 40px; border-radius: 8px; border-left: 4px solid var(--blue); }

/* Services */
.bg-dark { background: var(--navy); }
.services-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 25px; }
.card { background: var(--navy-light); border-radius: 8px; overflow: hidden; transition: 0.3s; border: 1px solid #112240; }
.card img { width: 100%; height: 200px; object-fit: cover; opacity: 0.7; transition: 0.4s; }
.card-body { padding: 25px; color: var(--slate); }
.card-body h3 { color: #fff; margin-bottom: 10px; font-family: 'Montserrat'; font-size: 1.1rem; }
.card:hover { transform: translateY(-10px); border-color: var(--blue); }
.card:hover img { opacity: 1; }

/* WhatsApp */
.whatsapp-float { position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px; z-index: 1000; transition: 0.3s; }
.whatsapp-float:hover { transform: scale(1.1); }

/* Footer */
footer { background: #020c1b; color: #fff; padding-top: 70px; }
.footer-flex { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; padding-bottom: 50px; }
input, textarea { width: 100%; padding: 14px; background: #0a192f; border: 1px solid #233554; color: #fff; border-radius: 4px; margin-bottom: 15px; }
.copyright { text-align: center; padding: 20px; background: #010813; font-size: 0.75rem; border-top: 1px solid #112240; color: var(--slate); }

@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .about-grid, .footer-flex { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}