body{font-family:Arial;margin:0;background:#0f1f1a;color:#fff}
header{background:#0a3d2e;padding:15px 30px;display:flex;justify-content:space-between;align-items:center}
.logo img{height:45px}
nav a{color:#fff;margin-left:20px;text-decoration:none}
.hero{padding:120px 30px;background:linear-gradient(rgba(10,61,46,.85),rgba(19,78,74,.85)),url('assets/images/hero-bg.jpg') center/cover no-repeat;text-align:center}
.card{background:#122b24;margin:30px;padding:30px;border-radius:12px}
.electric-card{background:linear-gradient(rgba(18,43,36,.9),rgba(18,43,36,.9)),url('assets/images/electric.jpg') center/cover no-repeat}
.clima-card{background:linear-gradient(rgba(18,43,36,.9),rgba(18,43,36,.9)),url('assets/images/clima.jpg') center/cover no-repeat}
form{display:grid;gap:10px}
input,textarea{padding:10px;border-radius:6px;border:none}
button{background:#5cffb0;border:none;padding:12px;border-radius:6px;font-weight:bold}
footer{text-align:center;padding:20px;background:#0a3d2e}