*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color:#4caf50;--primary-dark:#45a049;--secondary-color:#2196f3;--accent-color:#ff9800;--text-dark:#212121;--text-light:#757575;--bg-light:#f5f5f5;--bg-white:#fff;--shadow:0 2px 8px rgba(0,0,0,.1);--shadow-lg:0 4px 16px rgba(0,0,0,.15)}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-dark);line-height:1.6;overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 20px}.section{padding:80px 0}.btn{display:inline-block;padding:14px 32px;border-radius:8px;font-weight:600;text-decoration:none;transition:all .3s ease;cursor:pointer;border:none;font-size:16px}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background-color:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background-color:var(--primary-color);color:#fff}@media (max-width:768px){.section{padding:60px 0}.container{padding:0 16px}}