Efficycle1.css

html{
    scroll-behavior: smooth;
}

body{
    margin: 0;
    color: #fff;
    font-family: 'Open Sans', sans-serif;
    background: #000;
    overflow-x: hidden;
    min-height: 160vh;
}

*{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

ul{
    list-style: none;
}
a{
    text-decoration: none;
}

p{
    max-width: 30em;
}

header{
    height: 100vh;
    min-height: 40em;
    background: url(./images/car2.png) no-repeat center;
    background-size: cover;
}

.navbar,.header-body, .stats{
    display: flex;
    justify-content: space-between;
    align-items: center;

}

#video,
.gauge,
.about-text,
.action{
    display: flex;
    justify-content: center;
    align-items: center;
}

.navbar{
    color: #111;
    padding: 1em 2em;
    position: relative;
    top: -26px;
}

.navbar img{
    width: 105px;
    height: 105px;
    cursor: pointer;
    
} 
.navbar a,
.sidebar a{
    color: #111;
}

.navbar li{
    display: inline-block;
}

.navbar li a,
.menu-btn{
    transition: 0.3s;
    padding: 0.3rem 0.8rem;
    border-radius: 0.5rem;
}

.navbar li a:hover,.menu-btn:hover{
    background: rgba(191,191,191,0.5);
}

.brand{
    width: 7em;
}

.menu-btn{
    cursor: pointer;
}

.menu-btn-mobile{
    display: none;
}

.sidebar{
    color: #111;
    background: #fff;
    position: absolute;
    top: 0;
    right: -20em;
    padding: 2em;
    min-width: 20em;
    height: 100vh;
    overflow: scroll;
    box-shadow: 0 0 1.5em rgba(0,0,0,0.5);
    z-index: 3;
    transition: 0.4s ease-in-out;
}

.close-btn{
    cursor: pointer;
    text-align: right;
}

.sidebar li{
    margin: 1.5em 0;
}

.sidebar-backdrop{
    background: rgba(255, 255, 255, 0.4);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(4px);
    z-index: 1;
    opacity: 0;
    display: none;
    transition: 0.3s;
}

.header-body{
    flex-direction: column;
    text-align: center;
    height: 90%;
    padding: 0 1rem;
}



.title{
    font-size: 3.4em;
    color: #1f1f1f;
    margin: 0.3em 0;
    position: relative;
    top: -35px;
}
.header-body p{
    position: relative;
    top: -60px;
}

.header-body .stats{
    position: relative;
    top: 190px;
}











.stats{
    gap: 1em;
    margin-bottom: 20em;
}

.stats>div{
    width: 10em;
}

.stats h2{
    font-size: 2.3em;
}
.stats h2 span{
    font-size: 0.5em;
}

.btn{
    color: #fff;
    border: 3px #fff solid;
    padding: 0.6em 0;
    width: 12em;
    border-radius: 3em;
    font-size: 0.9em;
    transition: 0.3s;
}

.btn:hover{
    background: #fff;
    color: #000;
}
.btn-mobile{
    display: none;
}

.arrow{
    width: 1.4em;
    animation: arrow 5s ease infinite;
    cursor: pointer;
}

#video{
    padding: 6em 2em;
}

#video video{
    width: 100%;
    height: 20vw;
    max-width: 1200px;
}

.gauge img{
    width: 3.5em;
}

.specs{
    padding: 0 2em;
    position: relative;
    
}

.specs ul{
    max-width: 600px;
    margin: 0 auto;
}

.specs ul li{
    padding: 1em 0;
    border-bottom: 1px #ccc solid;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.banner-img{
    background: url(./images/effi1.jpg) no-repeat center;
    background-size: cover;
    width: 100%;
    height: 100vh;
    min-height: 40em;
    transition: 0.3s;
}

.about{
    margin: 4em 0;
    position: relative;
}

.about img{
    width: 100%;
    object-fit: cover;
}





.about-text{
    gap: 2em;
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    color: #272424;
    background: #ffffff;
    padding: 20px; 
    border: 1px solid #000000; 
    border-radius: 15px;
}

.about h2{
    font-size: 3.5em;
    max-width: 15em;
}

.about p{
    font-size: 1.2em;
}











.interior{
    padding: 0 2em 4em 2em;
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

.interior img{
    width: 100%;
    margin-bottom: 1.5em;

}

.roof{
    position: relative;
}
.roof-text{
    position: absolute;
    left: 2em;
    bottom: 4em;
}

.interior h2, .roof h2{
    margin-bottom: 0.5em;
}

.inframe-video{
    max-width: 1000px;
    padding: 4em 2em;
    margin: 0 auto;
    text-align: center;
}

.action{
    flex-direction: column;
}

.line{
    display: block;
    background: #555;
    width: 1px;
    height: 8em;
    margin: 2em 0;
}


.action .btn,
.action p{
    margin: 0.5em 0;
}

footer{
    text-align: center;
}


footer li{
    display: inline-block;
    margin: 0 7em;
}

footer li a{
    color: #fff;
    font-size: 0.9em;
    text-decoration: underline;
}


.roof-2{
    animation: changeImg 0.5s forwards;
}

.sidebar-open-body{
    min-height: 100vh;
    overflow: hidden;
}

@keyframes arrow{
    40%{
        transform: translateY(0px);
    }
    45%{
        transform: translateY(8px);
    }
    55%{
        transform: translateY(0px);
    }
    60%{
        transform: translateY(8px);
    }
    65%{
        transform: translateY(0px);
    }
    100%{
        transform: translateY(0px);
    }
}

@keyframes changeImg{
    100%{
        background: url(./images/effi1.jpg) no-repeat center;
        background-size: cover;
    }
}