/*phonics.css*/
/*Top of webpage*/
header{
    background:#ff6b6b;
    color:white;
    padding:20px;
    font-size:32px;
}

/* Navigation Bar */
nav{
    background:#ffa94d;
    padding:10px;
}

nav a{
    margin:0 20px;
    text-decoration:none;
    font-size:20px;
    color:white;
    font-weight:bold;
}

/*Content*/
body{
    font-family: Comic Sans MS, Arial;
    background:#fdf6e3;
    text-align:center;
}

h1{
    color:#0077b6;
}

.letter{
    font-size:70px;
    margin:20px;
    padding:20px;
    border-radius:15px;
    background:#a0e7e5;
    display:inline-block;
    cursor:pointer;
}

.word{
    font-size:30px;
    margin-top:20px;
    color:#444;
}

button{
    padding:10px 20px;
    font-size:18px;
    margin-top:20px;
    border:none;
    border-radius:10px;
    background:#ffae42;
    cursor:pointer;
}

/* Footer */
footer{
    background:#ffa94d;
    color:white;
    padding:15px;
    margin-top:40px;
}



/*Responsive Web Design*/
/* Universal Reset */

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

/* Base Layout (Mobile First) */

body{
font-family: "Comic Sans MS", Arial, sans-serif;
line-height:1.6;
padding:10px;
}
/* Banner */
header{
width:100%;
padding:20px;
text-align:center;
font-size:2rem;
}

/* Navigation */

nav{
display:flex;
flex-direction:column;
align-items:center;
gap:10px;
padding:10px;
}

nav a{
text-decoration:none;
font-size:1.2rem;
padding:8px 15px;
}

/* Content Area */

.container{
max-width:1200px;
margin:auto;
padding:10px;
}

/* Letter blocks */

.letter{
font-size:3rem;
padding:15px;
margin:10px;
border-radius:10px;
display:inline-block;
}

/* Math problem */

#problem{
font-size:2.5rem;
margin:20px 0;
}

input{
font-size:1.5rem;
padding:10px;
width:100px;
text-align:center;
}
button{
padding:10px 15px;
font-size:1.1rem;
margin-top:10px;
}
/* Footer */
footer{
    text-align:center;
    padding:15px;
    margin-top:30px;
    font-size:1rem;
}

/* Tablet Screens */
@media (min-width: 600px){
    nav{
        flex-direction:row;
        justify-content:center;
    }
    .letter{
        font-size:4rem;
        padding:20px;
    }
    #problem{
        font-size:3rem;
    }
    button{
        font-size:1.2rem;
    }
}

/* Laptop Screens */

@media (min-width: 900px){
    header{
        font-size:2.5rem;
    }
    nav a{
        font-size:1.3rem;
    }
    .letter{
        font-size:5rem;
    }
    #problem{
        font-size:3.5rem;
    }
    .container{
        padding:20px;
    }
}

/* Large Desktop */
@media (min-width: 1200px){

    header{
        font-size:3rem;
    }
    nav a{
        font-size:1.5rem;
    }
    .letter{
        font-size:6rem;
        padding:25px;
    }
    #problem{
        font-size:4rem;
    }
    button{
        font-size:1.3rem;
    }
}