* {
    box-sizing: border-box;
    margin: 0;
}
html {
    font-size: 10px;
    font-family: 'Open Sans', sans-serif;
    color: #1d2a3b;
}
.container {
    max-width: 960px;
    margin: 0 auto;
}
.container.card {
    margin-top: 12.3rem;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: -5px -4px 47px 3px rgba(198, 198, 198, 0.3);
    text-align: center;
    padding: 3.6rem;
}
.title-main {
    font-size: 3.6rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 2.1rem;
}
.main-image svg {
    max-width: 61rem;
    margin-bottom: 2rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.subheading {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 3rem;
}
.card .text {
    font-size: 13px;
    letter-spacing: 0.26px;
}
footer {
    color: #b1b1b1;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.7rem;
}
footer .logo svg {
    width: 145px;
    padding-left: 11px;
    display: block;
}
footer .left-side {
    display: flex;
    align-items: center;
}

/* Breakpoint: tablet landscape and smaller */
@media screen and (max-width: 1024px) {
    .container { max-width: 90%; }
}

/* Breakpoint: tablet portrait and smaller */
@media screen and (max-width: 768px) {
    html { font-size: 7px; }
    .container { max-width: 90%; }
    .container.card { margin-top: 6rem; }
    .card .text { font-size: 1.6rem; }
}

/* Breakpoint: mobile */
@media screen and (max-width: 480px) {
    html { font-size: 5.7px; }
    .container { max-width: 95%; }
    .title-main { font-size: 6.6vw; }
    .subheading { font-size: 13px; }
    .card .text { font-size: 12px; }
    footer { flex-direction: column; }
}