*{
    box-sizing: border-box;
    margin: 0;
} 
body{
    background-color: #f9fafb;
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2933;
}
header, footer{
    font-family: Tahoma, Geneva, sans-serif;
    background-color: #0f172a;
    color: white;
}
header{
    padding: 25px;
    text-align: center;
}
header .cta::after{
    content: "Zadzwoń teraz i umów darmową wizytę!";
  }
header p,h1,a{
    margin: 15px 0;
}
#dlaczego{
    display: flex;
    justify-content: space-between;
    gap: 20px;
}
.dlaczego{
    background-color: #ffffff;
    padding: 30px;
    min-width: 30%;
    text-align: center;
    border: 1px #0f172a solid;
    box-shadow: 0px 0px 3px 0px #0f172a ;
    margin: 50px 0;
    border-radius: 10px;
}
.napis{
    min-width: 100%;
    text-align: center;
    padding: 25px;
}

.kontener{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}
.plan{
    padding: 10px;
    margin: 2px;
    border-radius: 10px;
    width: 30%;
    box-sizing: border-box;
    transition: transform 0.3s ease;
}
.plan:hover{
    transform: scale(1.05) translateY(-6px);
}
.starter{
    border: 2px #19b949 solid;
    box-shadow: 0px 0px 3px 0px #19b949 ;
}
.standard{
    border: 2px #273CF5 solid;
    box-shadow: 0px 0px 3px 0px #273CF5 ;
}
.pro{
    border: 2px #FF0000 solid;
    box-shadow: 0px 0px 3px 0px #FF0000 ;
}
#opinie{
    display: flex;
    flex-direction: column;
}
#opinie2{
    font-size: 200%;
    margin: 30px;
}
.opinia{
    border: 1px #0f172a solid;
    box-shadow: 0px 0px 3px 0px #0f172a ;
    border-radius: 10px;
    padding: 25px;
    margin: 15px;
    text-align: center;
}
.opinia h2{
    padding: 0 0 10px 0;
}
#dale{
    text-align: center;
    padding: 30px;
}
#ostatnie{
    display: flex;
    justify-content: space-around;
    align-content: center;
}
.cta{
    text-decoration: none;
    font-size: 120%;
    color: #0f172a ;
    background-color: #facc15;
    padding: 8px;
    border-radius: 10px;

}
.dolne{
    color: #0f172a ;
    margin: 2px;
}
.cta:hover{
    text-decoration: none;
    padding: 8px;
    color: #facc15;
    background-color:  #f9fafb;
    border-radius: 10px;
    font-size: 120%;
}
.dolne:hover{
   background-color: #0f172a ;
   color: #facc15;
   border-radius: 10px;
    font-size: 120%;
    text-decoration: none;
    padding: 8px;
    margin: 2px;
}
footer{
    display: flex;
    justify-content: space-between;
    padding: 3px;
    font-size: 80%;
}
footer div{
    font-size: 150%;
}
@media (max-width: 768px){
  .kontener{
    flex-direction: column;
    align-items: center;
  }
  header .cta::after{
    margin-top: 20px;
    content: "Zadzwoń teraz!";
  }
  .plan{
    padding: 20px;
    margin: 10px;
    border-radius: 10px;
    min-width: 80%;
    box-sizing: border-box;
}
.dlaczego{
    margin: 25px 50px;
}
  #dlaczego{
    flex-direction: column;
    align-items: center;
  }
  footer{
    grid-template-columns: 1fr auto 1fr;
    display: grid;
  }
  .koniec_2{
    justify-self: end;
  }
}
section{
  animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn{
  from{
    opacity: 0;
    transform: translateY(20px);
  }
  to{
    opacity: 1;
    transform: translateY(0);
  }
}