/* Reset e Stili Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Helvetica', Arial, sans-serif; line-height: 1.6; color: #333; background: #fff; }

/* Navigazione */
nav { background: #1a252f; color: white; display: flex; justify-content: space-between; align-items: center; padding: 1rem 10%; position: sticky; top: 0; z-index: 1000; }
nav ul { list-style: none; display: flex; gap: 20px; }
nav a { color: white; text-decoration: none; font-weight: bold; font-size: 0.9rem; }

/* Hero Section */
.hero { 
    background: linear-gradient(rgba(26, 37, 47, 0.85), rgba(26, 37, 47, 0.85)), url('https://images.unsplash.com'); 
    background-size: cover; background-position: center; height: 70vh; display: flex; align-items: center; justify-content: center; color: white; text-align: center; 
}
.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.btn { background: #e67e22; color: white; padding: 12px 30px; text-decoration: none; border-radius: 4px; transition: 0.3s; display: inline-block; margin-top: 20px; }
.btn:hover { background: #d35400; }

/* Griglia Servizi */
.container { padding: 60px 10%; text-align: center; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin-top: 40px; }
.card { padding: 30px; border: 1px solid #eee; border-radius: 8px; transition: transform 0.3s; background: #f9f9f9; }
.card:hover { transform: translateY(-5px); border-color: #e67e22; }
.card h3 { color: #1a252f; margin-bottom: 15px; }

/* Sezione Tecnica */
.dark-section { background: #2c3e50; color: white; padding: 60px 0; }

/* Footer */
footer { background: #1a252f; color: #bdc3c7; padding: 40px 0; border-top: 4px solid #e67e22; }
