@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');

* {
    box-sizing: content-box;
}
body {
    font-family: 'Open Sans';
    padding: 0;
    margin: 0;
}
img {
    max-width: 100%;
}
.container {
    margin: auto;
    padding: 0 20px;
    max-width: 860px;
}
.header {
    box-shadow: 6px 0px 11px rgba(0, 0, 0, 0.54);
    position: absolute;
    right: 0;
    left: 0;
    top: 0;
    padding: 52px 0 16px;
}
.header a {
    text-decoration: none;
}
.header .container {
    max-width: 1235px;
    display: grid;
    grid-template-columns: minmax(265px, 1fr) 2fr 1fr;
    justify-content: space-between;
    align-items: center;
}
.header .logo a {
    color: #fff;
    display: grid;
    grid-template-columns: auto auto;
    grid-gap: 20px;
    align-items: center;
    font-size: 32px;
}
.header .nav ul {
    list-style: none;
    display: flex;
    justify-content: space-around;
    grid-gap: 20px;
    margin: 0;
    padding: 0;
}
.header .nav ul li {
    padding: 0 10px;
}
.header .nav ul li a {
    color: #fff;
    font-size: 19px;
    font-weight: bold;
    text-transform: uppercase;
}
.header .nav ul li:last-child a {
    color: #152037;
}
.header .nav .menu-btn {
    background-color: transparent;
    color: #fff;
    font-size: 25px;
    border: none;
    cursor: pointer;
    display: none;
}
.header .shared {
    justify-self: end;
}
.header .shared a {
    display: grid;
    grid-template-columns: minmax(40px, auto) auto;
    grid-gap: 13px;
    align-items: center;
    color: #152037;
    font-size: 21px;
    font-weight: bold;
}
.banner {
    background-image: url(../images/background-banner.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}
.banner .container {
    max-width: 1070px;
    display: grid;
    grid-template-columns: 40% auto;
    align-items: center;
    padding: 127px 20px 38px;
}
.banner p {
    font-size: 24px;
    line-height: 48px;
    color: #fff;
}
.banner__left img {
    margin-top: 31px;
}
.text-learn {
    display: grid;
    justify-content: center;
    padding: 57px 0 9px;
    box-shadow: 5px 0 5px rgba(0, 0, 0, 0.26);
}
.text-learn p {
    color: #152037;
    font-size: 20px;
    line-height: 39px;
    margin-bottom: 40px;
}
.text-learn .btn {
    display: block;
    color: #152037;
    background-color: #f98b00;
    font-weight: bold;
    font-size: 18px;
    font-style: italic;
    text-decoration: none;
    margin: auto;
    width: 100%;
    text-align: center;
    max-width: 120px;
    border-radius: 5px;
    padding: 3px 10px;
}
.how-use {
    color: #fff;
    background-color: #152037;
    padding: 50px 0 45px;
}
.how-use h2 {
    font-size: 25px;
    line-height: 50px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 6px;
}
.how-use ol {
    margin: auto;
    max-width: 585px;
}
.how-use ol li {
    font-size: 20px;
    line-height: 39px;
}
.how-use .col-3 {
    margin-top: 60px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    text-align: center;
}
.how-use .card {
    background-color: #fff;
    color: #152037;
    max-width: 250px;
    min-height: 280px;
    display: grid;
    align-content: space-between;
    justify-items: center;
    box-shadow: 0px 0px 15px rgba(0, 0, 0, 0.54);
    margin: 15px;
}
.how-use .card:before {
    content: "";
    background-color: #ff8c00;
    width: 100%;
    height: 47px;
    display: block;
}
.how-use .card p {
    border-top: 2px solid #f6f6f6;
    padding: 10px 15px 0;
    font-size: 14px;
}
.preview {
    background-color: #fb8c00;
    padding: 45px 0 67px;
    text-align: center;
}
.preview h2 {
    color: #152037;
    font-size: 37px;
    line-height: 74px;
    text-align: center;
}
.faq {
    color: #152037;
    padding: 9px 0 47px;
}
.faq .container {
    display: grid;
    justify-content: center;
}
.faq h2 {
    font-size: 37px;
    line-height: 74px;
    text-align: center;
    margin-bottom: 20px;
}
.faq h4 {
    font-size: 30px;
    line-height: 35px;
    font-weight: normal;
    margin: 0 0 15px;
}
.faq p {
    font-size: 22px;
    line-height: 61px;
    margin: 0 0 11px 40px;
}
.feature {
    background-color: #152037;
    color: #fff;
    text-align: center;
    padding: 68px 0 55px;
}
.feature h2 {
    font-size: 37px;
    margin: 0 0 43px;
}
.feature .feature-box {
    max-width: 680px;
    margin: auto;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.54);
    background-color: #fff;
    margin-bottom: 15px;
}
.feature .feature-box div {
    padding: 20px;
    border-bottom: 1px solid #ededed;
}
.feature .feature-box p {
    background-color: #767676;
    color: #fff;
    margin: 0;
    padding: 10px;
}
.about {
    padding: 36px 0 39px;
    background-color: #ededed;
}
.about .container {
    max-width: 1120px;
}
.about p {
    font-size: 19px;
    line-height: 38px;
    color: #152037;
    text-align: center;
    margin: 0;
}
.about .text-small {
    max-width: 645px;
    margin: auto;
}
.footer {
    background-color: #030303;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    padding: 34px 0 42px;
}
.footer p {
    margin: 0;
}
@media only screen and (max-width: 920px) {
    .header {
      padding: 20px 0;
    }
    .header .container {
      grid-template-areas: 'logo shared nav';
      grid-template-columns: auto 1fr auto;
    }
    .header .logo {
      grid-area: logo;
    }
    .header .nav {
      grid-gap: nav;
    }
    .header .nav ul {
      position: absolute;
      background-color: #fe8d00;
      display: none;
      min-width: 200px;
      top: 100px;
      right: 20px;
      padding: 20px;
      text-align: center;
    }
    .header .nav ul li:last-child a {
      color: #fff;
    }
    .header .nav .menu-active {
      display: grid;
    }
    .header .nav .menu-btn {
      display: block;
    }
    .header .shared {
      grid-area: shared;
    }
}
@media only screen and (max-width: 768px) {
    .header .logo a {
      font-size: 25px;
    }
    .header .shared span {
      display: none;
    }
    .banner .container {
      grid-template-columns: auto;
    }
    .how-use .col-3 {
      grid-template-columns: auto;
      justify-content: center;
    }
    .preview iframe {
      width: 100%;
    }
}