*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;line-height:1.6;color:#333}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:12px 24px;text-decoration:none;border-radius:5px;font-weight:700;transition:all .3s ease;border:none;cursor:pointer}.btn-primary{background:#2563eb;color:#fff}.btn-primary:hover{background:#1d4ed8}.btn-secondary{background:transparent;color:#2563eb;border:2px solid #2563eb}.btn-secondary:hover{background:#2563eb;color:#fff}