*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    font-size:16px;
}

body{
    font-family:Arial,sans-serif;
    background:#f5f5f5;
    color:#222;
    overflow-x:hidden;
}

img{
    max-width:100%;
    height:auto;
    display:block;
}

.container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 15px;
}

.site-header{
    background:#1565c0;
    color:#fff;
    text-align:center;
    padding:25px 15px;
}

.navbar{
    background:#0d47a1;
}

.navbar ul{
    list-style:none;
    display:flex;
    flex-wrap:wrap;
}

.navbar li{
    flex:1;
    min-width:120px;
}

.navbar a{
    display:block;
    text-align:center;
    color:#fff;
    text-decoration:none;
    padding:15px;
}

.navbar a:hover{
    background:#1976d2;
}

main{
    background:#fff;
    min-height:500px;
    padding:25px;
}

.footer{
    background:#222;
    color:#fff;
    text-align:center;
    padding:20px;
}

/* ===========================
   Tablet
=========================== */

@media (max-width:992px){

    .navbar li{
        min-width:100px;
    }

}

/* ===========================
   Mobile
=========================== */

@media (max-width:768px){

    .site-header h1{
        font-size:1.6rem;
    }

    .navbar ul{
        flex-direction:column;
    }

    .navbar li{
        width:100%;
    }

    .navbar a{
        border-top:1px solid rgba(255,255,255,.15);
    }

    main{
        padding:20px 15px;
    }

}

/* ===========================
   Small Mobile
=========================== */

@media (max-width:480px){

    .site-header{
        padding:20px 10px;
    }

    .site-header h1{
        font-size:1.3rem;
    }

    .site-header p{
        font-size:.9rem;
    }

    main{
        padding:15px;
    }

}