:root {
    --primary-color: #090d16; /* Negro Profundo Hacker/Terminal */
    --accent-color: #10b981;  /* Verde Esmeralda Neón */
    --text-color: #94a3b8;    /* Gris Claro Tecnológico */
    --bg-light: #111827;      /* Gris Oscuro Intermedio */
    --bg-white: #1e293b;      /* Tarjetas en Gris Azulado */
    --warning-border: #ef4444; /* Rojo de Alerta */
    --warning-bg: #2d1a1a;
    --font-stack: "Courier New", Courier, monospace, -apple-system, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-stack); color: var(--text-color); background-color: var(--primary-color); line-height: 1.6; font-size: 15px; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.main-header { background-color: var(--bg-light); padding: 18px 0; border-bottom: 2px solid var(--accent-color); position: sticky; top: 0; z-index: 1000; }
.header-flex { display: flex; justify-content: space-between; align-items: center; }
.logo { color: #f8fafc; font-size: 20px; font-weight: bold; letter-spacing: 2px; }
.logo-bold { color: var(--accent-color); }
.main-nav a { color: #94a3b8; text-decoration: none; margin-left: 18px; font-size: 13px; font-weight: bold; }
.main-nav a:hover { color: var(--accent-color); }
.hero-section { padding: 70px 0; background: radial-gradient(circle, #111827 0%, #090d16 100%); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.hero-content h1 { font-size: 36px; color: #f8fafc; margin-bottom: 15px; }
.hero-content p { margin-bottom: 25px; color: #64748b; }
.hero-image img { width: 100%; border-radius: 4px; border: 1px solid var(--accent-color); height: 320px; object-fit: cover; }
.btn-primary { display: inline-block; background-color: transparent; color: var(--accent-color); border: 2px solid var(--accent-color); padding: 12px 24px; text-decoration: none; font-weight: bold; border-radius: 4px; transition: all 0.3s; }
.btn-primary:hover { background-color: var(--accent-color); color: var(--primary-color); }
.gov-disclaimer { margin: 35px 0; background-color: var(--warning-bg); border-left: 4px solid var(--warning-border); padding: 20px; border-radius: 4px; }
.gov-disclaimer p { font-size: 13px; color: #fca5a5; }
.services-section { padding: 50px 0; background-color: var(--bg-light); }
.section-title { font-size: 28px; color: #f8fafc; text-align: center; margin-bottom: 35px; text-transform: uppercase; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; }
.service-card { background-color: var(--bg-white); border-radius: 4px; overflow: hidden; border: 1px solid #334155; }
.service-card img { width: 100%; height: 180px; object-fit: cover; filter: grayscale(50%); }
.service-card h3 { color: var(--accent-color); padding: 15px; font-size: 18px; }
.service-card p { padding: 0 15px 15px 15px; color: #94a3b8; font-size: 14px; }
.density-section { padding: 70px 0; background-color: var(--primary-color); }
.section-subtitle { text-align: center; color: #64748b; margin: -25px auto 40px auto; max-width: 750px; }
.density-content { max-width: 850px; margin: 0 auto; }
.density-block { margin-bottom: 40px; }
.density-block h3 { font-size: 20px; color: #f8fafc; margin-bottom: 12px; border-bottom: 1px solid #334155; padding-bottom: 6px; }
.density-block p { text-align: justify; margin-bottom: 12px; color: #94a3b8; }
.requirements-list { margin: 15px 0; padding-left: 20px; color: #cbd5e1; }
.requirements-list li { margin-bottom: 10px; }
.data-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; color: #cbd5e1; }
.data-table th, .data-table td { border: 1px solid #334155; padding: 12px; }
.data-table th { background-color: var(--bg-light); color: var(--accent-color); }
.contact-section { padding: 50px 0; background-color: var(--bg-light); }
.contact-box { max-width: 600px; background-color: var(--bg-white); padding: 35px; border-radius: 4px; border: 1px solid #334155; margin: 0 auto; }
.contact-box h2 { color: #f8fafc; margin-bottom: 8px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 5px; color: var(--accent-color); font-size: 13px; }
.form-group input, .form-group textarea { width: 100%; padding: 10px; background-color: var(--primary-color); border: 1px solid #334155; color: #f8fafc; font-family: var(--font-stack); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-color); }
.btn-submit { width: 100%; background-color: var(--accent-color); color: var(--primary-color); padding: 12px; border: none; font-weight: bold; cursor: pointer; }
.main-footer { background-color: #020617; color: #64748b; padding: 45px 0 15px 0; font-size: 13px; border-top: 1px solid #334155; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 30px; }
.footer-grid h4 { color: #f8fafc; margin-bottom: 10px; }
.footer-links { list-style: none; }
.footer-links a { color: #64748b; text-decoration: none; }
.footer-links a:hover { color: var(--accent-color); }
.footer-bottom { text-align: center; padding-top: 20px; font-size: 11px; margin-top: 20px; border-top: 1px solid #1e293b; }
@media (max-width: 768px) { .hero-grid { grid-template-columns: 1fr; } .hero-image { display: none; } .header-flex { flex-direction: column; gap: 10px; } }