@import url('https://fonts.googleapis.com/css?family=Open+Sans:400,600,700,800');

/* Base */
body {
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    background-color: #ffffff;
    color: #1d1d1f;
    margin: 0;
    padding: 0;
}

/* Homepage Centering (fixed version) */
#index-container {
    margin-top: 20vh;
}

/* Navigation */
nav {
    margin: 10px 0;
}

/* Section Box */
section {
    border: 1px solid #e5e5ea;
    border-radius: 12px;
    text-align: justify;
    background-color: #ffffff;
}

/* Headings */
h1 {
    font-size: 10vw;
    font-weight: 800;
    margin: 0;
    color: #007AFF; /* Apple blue */
}

h2 {
    margin-top: 0;
    color: #1d1d1f;
}

h3 {
    color: #1d1d1f;
}

h4 {
    color: #3a3a3c;
}

/* Text */
p,
li {
    color: #424245;
}

/* Links */
a {
    text-decoration: none;
}

a:link,
a:visited {
    color: #007AFF;
}

a:hover {
    text-decoration: underline;
}

/* Underline helper */
.link {
    text-decoration: underline;
}

/* Footer */
#copyright {
    font-size: 0.75em;
    color: #86868b;
    margin: 2vh 0;
}

/* Mobile Padding */
@media only screen and (max-width: 600px) {
    body {
        padding: 0 10px;
    }

    section {
        margin-top: 2vw;
        margin-left: 1vw;
        margin-right: 1vw;
        padding: 0% 3%;
    }

    div {
        margin-bottom: 3vw;
    }

    h2 {
        margin-bottom: 1vw;
        font-size: 5vw;
    }

    h3 {
        margin-top: 2vw;
        margin-bottom: 1vw;
        font-size: 3.5vw;
    }

    h4 {
        margin-top: 2vw;
        margin-bottom: 0;
    }

    p {
        margin-top: 1vw;
        margin-bottom: 1vw;
    }

    ul {
        margin-top: 1.5vw;
        padding-left: 6vw;
    }

    li {
        margin-top: 1vw;
    }
}

/* Small Devices */
@media only screen and (min-width: 600px) {
    section {
        margin-top: 2vw;
        margin-left: 3vw;
        margin-right: 4vw;
        padding: 0.5% 4% 1% 4%;
    }

    div {
        margin-bottom: 3vw;
    }

    h2 {
        margin-bottom: 1vw;
        font-size: 5vw;
    }

    h3 {
        margin-top: 2vw;
        margin-bottom: 0vw;
        font-size: 3vw;
    }

    h4 {
        margin-top: 1.5vw;
        margin-bottom: 0;
    }

    ul {
        margin-top: 1.5vw;
        padding-left: 5vw;
    }

    li {
        margin-top: 1vw;
    }
}

/* Medium Devices */
@media only screen and (min-width: 768px) {
    section {
        margin-top: 2vw;
        margin-left: 5vw;
        margin-right: 5vw;
        padding: 2% 5% 2% 5%;
    }

    h2 {
        font-size: 4vw;
    }

    h3 {
        font-size: 2.5vw;
    }
}

/* Large Devices */
@media only screen and (min-width: 992px) {
    section {
        margin-left: 10vw;
        margin-right: 10vw;
        padding: 3% 6% 2% 6%;
    }

    h3 {
        font-size: 2vw;
    }
}

/* Extra Large Devices */
@media only screen and (min-width: 1200px) {
    section {
        margin-left: 20vw;
        margin-right: 20vw;
        padding: 5% 7% 3% 7%;
    }

    div {
        margin-bottom: 40px;
    }

    h2 {
        font-size: 3vw;
    }

    h3 {
        font-size: 1.5vw;
    }

    h4 {
        font-size: 1.2vw;
    }

    p,
    li {
        font-size: 1.1vw;
    }
}