*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{color:#333;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;font-size:16px;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{cursor:pointer;text-align:center;border:none;border-radius:25px;justify-content:center;align-items:center;padding:12px 30px;font-size:1rem;font-weight:500;text-decoration:none;transition:transform .2s,box-shadow .2s;display:inline-flex}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn-primary{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.btn-primary:hover{box-shadow:0 4px 15px #667eea66}.btn-secondary{color:#333;background:#f8f9fa}.btn-secondary:hover{background:#eff1f4}