html, body{
    margin: 0;
    padding: 0;
}
body{
    --border: 1px solid gray;

    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    padding: 50px;
    background-color: hsl(0, 0%, 98%);
    font-family: sans-serif;
}

fieldset, #info-table, canvas{
    border-radius: 2px;
}

header{
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
}
h1{
    font-size: 2.4rem;
    font-family: serif;
    margin: 0;
}
#github-link{
    justify-self: end;
    align-self: center;
}

#file-container{
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: start;
    justify-content: center;
}

form{
    display: flex;
    flex-direction: column;
    gap: 4px;
}
fieldset{
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-block: 12px;

    background-color: white;
    border: var(--border);

}
legend{
    font-size: 1.4rem;
}
#file-input{
    margin-top: 14px;
    margin-bottom: 6px;
    display: flex;
    flex-direction: column;
}
#file-input.hidden{
    visibility: collapse;
}


#submit{
    margin: auto;
    margin-top: 12px;

    font-size: 1rem;
    font-weight: 600;
    color: white;

    padding: 8px 40px;
    background-image: linear-gradient(90deg, #496ab9, #557ad2);
    border: 2px solid #395aa6;
    border-radius: 2px;
}
    #submit:hover{
        filter: brightness(1.1);
    }

#inputs > label{
    display: block;
}

#info-table{    
    --cell-padding: 8px 16px;

    display: grid;
    /* Prevent text wrapping */
    width: max-content;
    background-color: white;
    border: var(--border);

    /* Match top border with fieldset top border */
    margin-top: 0.8rem;
}
    #info-table > div{
        display: grid;
        padding: var(--cell-padding);
        min-width: 3rem;
    }
#file-name{
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    padding: var(--cell-padding);
    border-bottom: var(--border);
    min-height: 1em;
}
.row-headers{
    border-right: var(--border);
    font-weight: 600;
}



canvas{
    /* Checkerboard pattern */
    background-image: repeating-conic-gradient(#f0f0f0 0% 25%, #e3e2e2 25% 50%);
    background-size: 40px 40px;

    border: 1px solid gray;
    box-sizing: content-box;
    max-width: 100%;
}