* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; }

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

/* Header */
header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 1rem 0; position: fixed; width: 100%; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
nav { display: flex; justify-content: space-between; align-items: center; }
nav h1 { font-size: 1.5rem; }
nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 2rem; }
nav ul li a { color: white; text-decoration: none; transition: opacity 0.3s; }
nav ul li a:hover { opacity: 0.8; }

/* Hero */
#hero { background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%); padding: 150px 0 100px; text-align: center; }
#hero h2 { font-size: 3.5rem; margin-bottom: 1rem; color: #333; }
#hero p { font-size: 1.3rem; margin-bottom: 2rem; color: #666; }
.btn { display: inline-block; background: #667eea; color: white; padding: 12px 30px; text-decoration: none; border-radius: 50px; transition: transform 0.3s, box-shadow 0.3s; }
.btn:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3); }

/* Sections */
section { padding: 80px 0; }
section h3 { text-align: center; font-size: 2.5rem; margin-bottom: 3rem; color: #333; }
#about p { text-align: center; font-size: 1.2rem; max-width: 800px; margin: 0 auto 3rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.card { background: white; padding: 2rem; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); text-align: center; transition: transform 0.3s; }
.card:hover { transform: translateY(-10px); }
.card h4 { font-size: 1.5rem; margin-bottom: 1rem; color: #667eea; }

/* Contact */
#contact { background: #f8f9fa; }
form { max-width: 600px; margin: 0 auto; }
input, textarea { width: 100%; padding: 15px; margin-bottom: 1rem; border: 1px solid #ddd; border-radius: 8px; font-size: 1rem; }
button { width: 100%; background: #667eea; color: white; padding: 15px; border: none; border-radius: 8px; font-size: 1.1rem; cursor: pointer; transition: background 0.3s; }
button:hover { background: #5a67d8; }

/* Footer */
footer { background: #333; color: white; text-align: center; padding: 2rem 0; }

@media (max-width: 768px) {
    #hero h2 { font-size: 2.5rem; }
    nav ul { flex-direction: column; gap: 1rem; }
}