body {
    color: #2b283a;
    font-family: 'Roboto', sans-serif;
    margin: 0;
}

/* ----- TYPOGRAPHY ----- */

h1, 
h3 {
    margin: 0;
}

h1 {
    color: whitesmoke;
    font-size: 2.25rem;
}

/*
  Challenge: Responsive text
    - h2:
        - Initial size: rem value equal to 22px
        - At 768px: increase to 1.75rem
    - .subheading:
        - Initial size: suitable for smaller screens
        - At 768px: increase to 1.25rem  
    - Paragraphs:
        - At 768px: increase to rem value equal to 18px
*/

h2 {
    color: #451c7a;
    font-size: 1.75rem; /* update initial font-size */
    margin-top: 0;
}

h3 {
    font-size: 1.25rem;
}

p {
    line-height: 1.5;
}

.subheading {
    display: block;
    font-size: 1.25rem; /* update initial font-size */
    color: #d0aaff;
}

.section-two h2 {
    color: inherit;
}

/* ----- LINKS ----- */

a {
    color: #ef5839;
    text-decoration: underline dotted; 
}

a:hover, 
a:active {
    color: #d4b44c;
}

.btn {
    font-size: 1.125rem;
    text-align: center;
    font-weight: 500;
    text-decoration: none;
    display: block;
    padding: 0.5em 1em;
    margin-bottom: 1em;
    border-radius: 4.6px;
}

.btn-dark {
    color: whitesmoke;
    background: #5f29a3;
}

.btn-mid {
    color: #5f29a3; 
    background: #f0e0ff; 
}

.btn-light {
    color: #5f29a3; 
    background: whitesmoke;
}

.btn:hover, 
.btn:active {
    color: #2b238a;
    background-color: #f3e885;
}

/* ----- LAYOUT ----- */

header, 
section, 
footer {
    padding: 1.25em 0;
}

header, 
.section-two {
    background-color: #5f29a3;
}

.section-two {
    color: whitesmoke;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
}

.main-image {
    width: 100%;
    display: block;
    max-width: 640px;
    margin: 0 auto 2em;
}

.feature-image {
    width: 100%;
    border-radius: 4.6px;
    margin-bottom: 1em;
}

footer {
    text-align: center;
    color: #5f29a3;
}

/* ----- MEDIA QUERIES ----- */

@media (min-width: 480px) {
    .section-two-image-container {
        display: flex;
        justify-content: space-between;
    }
    
    .feature-image {
        width: 48.8%;        
    }
}

@media (min-width: 768px) {
    header,
    section,
    footer {
        padding: 2.875em 0;        
    }
    
    .btn {
        display: inline-block;
        margin-right: 0.5em;
    }
}