body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; color: #444; line-height: 1.6; background-color: #f9fbfb; }
nav { background: #fff; padding: 20px; display: flex; justify-content: space-around; border-bottom: 2px solid #eef2f3; position: sticky; top: 0; z-index: 1000; }
nav a { text-decoration: none; color: #5a7d7c; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; }
.hero { background: linear-gradient(rgba(255,255,255,0.7), rgba(255,255,255,0.7)), url('images/main-page.png'); height: 400px; display: flex; align-items: center; justify-content: center; text-align: center; background-size: cover; }
.hero h1 { color: #5a7d7c; font-size: 3rem; }
.container { max-width: 1000px; margin: 40px auto; padding: 20px; background: #fff; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }
.form-group { margin-bottom: 15px; }
input, textarea { width: 100%; padding: 12px; border: 1px solid #ddd; border-radius: 4px; margin-top: 5px; box-sizing: border-box; }
.btn-submit { background: #5a7d7c; color: white; border: none; padding: 15px 30px; cursor: pointer; border-radius: 4px; font-size: 1.1rem; }
.btn-submit:hover { background: #4a6665; }
footer { text-align: center; padding: 40px; background: #f1f5f5; color: #777; margin-top: 50px; }