/* RESET */
*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:Arial, Helvetica, sans-serif;
}

/* BODY */
body{
  background:#f4f6f9;
  line-height:1.6;
  display:flex;
  justify-content:center;
  padding:40px;
}

/* CONTAINER */
.container{
  max-width:800px;
  background:white;
  padding:40px;
  border-radius:10px;
  box-shadow:0 10px 25px rgba(0,0,0,0.1);
}

/* HEADINGS */
h1{
  color:#1a3d6d;
  margin-bottom:20px;
  font-size:30px;
}

h2{
  color:#2c3e50;
  margin-top:30px;
  margin-bottom:10px;
}

h3{
  color:#34495e;
  margin-top:30px;
  margin-bottom:10px;
}

/* PARAGRAPH */
p{
  margin-bottom:15px;
  color:#444;
  font-size:17px;
}

/* -------------------- */
/* MOBILE DEVICES */
/* -------------------- */
@media(max-width:600px){
  .container{
    padding:25px;
  }
  h1{
    font-size:24px;
  }
  h2{
    font-size:20px;
  }
  h3{
    font-size:18px;
  }
  p{
    font-size:16px;
  }
}

/* -------------------- */
/* TABLETS / SMALL LAPTOPS */
/* -------------------- */
@media(min-width:601px) and (max-width:1024px){
  .container{
    max-width:90%;
    padding:35px;
  }
  h1{
    font-size:28px;
  }
  h2{
    font-size:22px;
  }
  h3{
    font-size:20px;
  }
  p{
    font-size:17px;
  }
}

/* -------------------- */
/* LARGE SCREENS DESKTOPS */
/* -------------------- */
@media(min-width:1025px){
  .container{
    max-width:800px;
    padding:40px;
  }
  h1{
    font-size:32px;
  }
  h2{
    font-size:26px;
  }
  h3{
    font-size:22px;
  }
  p{
    font-size:18px;
  }
}