body {
    margin: 0;
    font-size: 20px;
    font-family: 'Montserrat', sans-serif;
    color: #FFFFFF;
    background-color: black;
    line-height: 1.6;
}

::-webkit-scrollbar {
    width: 0;
}

*,
*::after,
*::before {
    box-sizing: border-box;

}

h1,
h2,
h3 {
    margin: 0;
}

/* Container */

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Intro */

.intro {
    width: 100%;
    height: 100vh;
    min-height: 568px;
    background: url(image/intro.jpg) bottom no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column;
    justify-content: center;

}

.intro-title {
    font-size: 63px;
    text-transform: uppercase;
    font-weight: 500;
    color: #FFCB00;
}

.intro-title span {
    font-size: 55px;
    text-transform: lowercase;
}

.intro-subtitle {

    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 50px;
}

/* Button */

.intro-button {
    display: inline;
    vertical-align: top;
    font-size: 15px;
    color: #222222;
    border: #FFCB00 1px solid;
    font-weight: 400;
    padding: 10px 50px;
    background-color: #FFCB00;
    border-radius: 10px;
    transition: color 0.2s linear;
    text-decoration: none;
}

.intro-button:hover {
    background-color: #222222;
    color: #FFCB00;
}

.intro-inner {
    width: 100%;
    max-width: 850px;
    max-height: fit-content;
    text-align: left;
    padding: 0;
    margin: 10px;
}

/* Header */

.header {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 45px 20px 20px 30px;
}

.logo {
    align-items: center;
}

/* Navigation */

.navigation {
    text-transform: uppercase;

    font-weight: 300;
}

.nav-link {
    display: inline-block;
    vertical-align: top;
    margin: 0 20px;
    color: #FFFFFF;
    text-decoration: none;
    position: relative;
}

.nav-link:after {
    content: "";
    display: block;
    width: 100%;
    height: 2px;
    background-color: #FFCB00;

    top: 100%;
    left: 0;
    z-index: 1;

    opacity: 0;
}

.nav-link:hover {
    color: #FFCB00;
    transition: color 0.2s linear;
}

.nav-link:hover::after {
    opacity: 1;
    transition: opacity 0.2s linear;
}

/* About */

.about-block {
    display: block;
    margin-top: 80px;
}

.about-pic {
    float: left;
    margin-right: 50px;
}


.about-intro-title {
    color: #FFCB00;
    font-size: 40px;
    text-transform: uppercase;
    width: 100%;
    max-width: 800px;
}


.about-button {
    margin: 0;
    display: inline;
    vertical-align: bottom;
    font-size: 15px;
    color: #222222;
    border: #FFCB00 1px solid;
    font-weight: 400;
    padding: 10px 50px;
    background-color: #FFCB00;
    border-radius: 10px;
    text-decoration: none;
    transition: color 0.2s linear;
}

.about-button:hover {
    color: #FFCB00;
    border: #FFCB00 1px solid;
    background-color: #222222;

}


.call-to-action {
    text-transform: uppercase;
    color: #FFCB00;
    margin-top: 90px;
}


/* Features */

.features-block {

    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
    padding-top: 70px;
}

.features-list {
    display: flex;

    flex: 1 1 0;
}

.features-item {
    display: flex;
    width: 100%;
    max-width: 400px;
    align-items: center;

}

.features-icon {
    max-width: 65px;
}

.features-text {

    line-height: 1.4;
    width: 100%;
    max-width: 200px;
    margin: 10px;
}

hr {
    margin: 20px 0;
    border: 0;
}

.features-background {
    background: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.5)), url(image/pic\ 2.jpg) center no-repeat;
    background-size: cover;
    height: 100vh;
    margin-top: 80px;
}



/*footer*/

.copyright {
    font-size: 12px;
    padding: 10px;
    padding-bottom: 10px;
}

.footer {
    display: flex;
    justify-content: space-around;
    align-items: center;
    min-height: 200px;
    color: #FFCB00;

}

.email {
    color: #FFFFFF;

    text-decoration: none;
}

.email:hover {
    color: #FFCB00;
    transition: color 0.2s linear;


}



@media (max-width: 767px) {
    body {
        font-size: 15px;
    }

    .about-intro-title {
        font-size: 30px;
    }

    .logo img {
        max-width: 100px;
    }

    .intro-title {
        font-size: 55px;
    }

    .intro-title span {
        font-size: 45px;
    }

    .about-button {
        display: none;
    }

    .call-to-action {
        margin-top: 0;

    }


    .features-icon {
        max-width: 55px;
    }

    .features-text {
        max-width: 150px;
    }
}


@media (max-width: 600px) {

    .intro-title {
        font-size: 45px;
    }

    .intro-title span {
        font-size: 35px;
    }

    .intro-subtitle {
        font-size: 20px;
        max-width: 300px;
    }

    .about-pic img {
        max-width: 200px;
    }



    .features-list {
        flex-direction: column;
    }

    .features-item {
        margin: 5px;
    }

    hr {
        display: none;
    }

    br {
        display: none;
    }

    .features-text {
        max-width: none;
    }

    .footer {
        flex-direction: column;
        justify-content: space-evenly;
    }

    .social-link img {
        max-width: 50px;
    }
}

@media (max-width: 500px) {
    .navigation {
        display: none;
    }

    .header-top {
        justify-content: center;
        margin: 45px 0;
    }

    .about-block {
        text-align: center;
    }

    .about-pic {
        float: none;
    }

    .call-to-action {
        text-align: center;
    }


}

@media (max-width: 441px) {

    .header {
        background: url(image/intro.jpg) no-repeat center;
        background-size: cover;
        height: 50vh;
        position: relative;
    }

    .features-icon {
        max-width: 35px;
    }

    .intro {
        background: none;
        justify-content: flex-start;
        height: auto;
        min-height: auto;
    }

    .intro-title {
        font-size: 32px;
    }

    .intro-title span {
        font-size: 22px;
    }

    .intro-subtitle {
        font-size: 20px;
    }
}