:root {
    --font-family: 'Montserrat', sans-serif;
}
html {
    background-color: #1A2035;
    font-family: var(--font-family);
}
.heading {
    color: #434f5e;
    font-size: 6rem;
}
h3 {
    color: #B6C1D2;
    font-size: 1.75rem;
    
}
p {
    color: #7F8E96;
    font-size: 1rem;
}
a {
    text-decoration: none;
}
/* Banner position */
.banner {
    margin-left: 700px;
    margin-top: 60px
}
/* error container */
.contact-us-link:visited {
    color: #4141f7;
}
.contact-us-link {
    color: #4141f7;
}
.contact-us-link:hover {
    text-decoration: underline;
}
.error-container {
    border: 2px solid #1b1f2e;
    width: fit-content;
    border-radius: 6px;
    background-color: #1b1f2e;
    margin-right: auto;
    margin-left: auto;
    margin-top: -20px;
}
.content {
    padding: 40px;
    text-align: center;
}
.button-style {
    border: 1px  solid #1F283E;
    background-color: #1F283E;
    padding: 5px;
    border-radius: 6px;
    color: #B6C1D2;
}
.button-style:hover {
    text-decoration: underline;
}
.buttons {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    margin-top: -20px;
    padding-bottom: 20px;
    margin-left: -5px;
}
.first-child {
    margin-right: 5px;
}
.last-child {
    margin-left: 5px;
}
.subheading {
    padding-bottom: 30px;
}
.sub-heading, .heading {
    margin-top: -40px;
}
.heading {
    animation-name: loading;
    animation-duration: 4s;
    animation-iteration-count: infinite;
    position: relative;
    animation-direction: normal;
}
@keyframes loading {
    from {font-color: #434f5e; }
    to {font-color:#66707c; }
}
/* Footer */
.footer {
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}
.footer-link {
    color: #7F8E96;
}
.footer-link:hover {
    color: #979ea1;
    text-decoration: underline;
}
/* Responsiveness */ 
@media (max-width: 2560px ) {
    .banner {
        margin-left: 1028px;
    }
}
@media (max-width: 1920px ) {
    .banner {
        margin-left: 700px;
    }
}
@media (max-width: 1880px ) {
    .banner {
        margin-left: 684px;
    }
}
@media (max-width: 1680px ) {
    .banner {
        margin-left: 580px;
}
}
@media (max-width: 1600px ) {
    .banner {
        margin-left: 542px;
    }
}
@media (max-width: 1440px ) {
    .banner {
        margin-left: 462px;
    }
}
@media (max-width: 1366px ) {
    .banner {
        margin-left: 426px;
    }
}
@media (max-width: 1024px ) {
    .banner {
        margin-left: 256px;
    }
}
@media (max-width: 800px ) {
    .banner {
        margin-left: 145px
    }
}
@media (max-width: 425px ) {
    .error-container {
        width: 500px;
        margin-left: 5px;
    }
    .text {
        font-size: 1.35rem;
    }
    .footer-text {
        font-size: 1.25rem;
        line-height: 1;
        padding-left: 100px;
    }
    .button-style {
        font-size: 1.25rem;
    }
    .banner {
        margin-left: 10px;
    }
}
@media (max-width: 375px ) {
    .footer-text {
        padding-left: 120px;
    }
}