:root{--primary: #2c3e50;--secondary: #3498db;--accent: #e74c3c;--light: #ecf0f1;--dark: #2c3e50;--text: #333;--text-light: #7f8c8d}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--text)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.section{padding:80px 0}.section-title{font-size:2.5rem;margin-bottom:1.5rem;text-align:center;color:var(--primary)}.section-subtitle{font-size:1.2rem;text-align:center;max-width:800px;margin:0 auto 3rem;color:var(--text-light)}.btn{display:inline-block;padding:12px 30px;background-color:var(--secondary);color:#fff;border:none;border-radius:4px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;text-decoration:none}.btn:hover{background-color:#2980b9;transform:translateY(-2px)}@media (max-width: 768px){.section{padding:60px 0}.section-title{font-size:2rem}.section-subtitle{font-size:1rem}}.no-scroll{overflow:hidden;height:100%}