@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap");

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

body{
    font-family: "Poppins", sans-serif;
}

.container{
    min-height: 100vh;
    width: 100%;
    background-color: #485461;
    /* background-image: linear-gradient(135deg, #11559e 0%, #07032f 74%); */
    background: url("./img/aero1.avif") no-repeat top center / cover;
    overflow: hidden;
    transform-style: preserve-3d;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    height: 3rem;

}

.menu {
    max-width: 72rrem;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
}

.logo{
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 4rem;
}

.logo span {
    font-weight: 300;
}

.hamburger-menu{
    height: 4rem;
    width: 3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.bar {
    width: 1.9rem;
    height: 1.5px;
    border-radius: 2px;
    background-color: #eee;
    transition: 0.5s;
    position: relative;
}

.bar:before,
.bar:after {
    content: "";
    position: absolute;
    width: inherit;
    height: inherit;
    background-color: #eee;
    transition: 0.5s;
}

.bar:after {
    transform: translateY(-9px)
}

.bar:before {
    transform: translateY(9px);
}

.main{
   position: relative;  
   width: 100%;
   left: 0;
   z-index: 5;
   background-color: #fff;
   overflow: hidden;
   transform-origin: left;
   transform-style: preserve-3d;
   transition: 0.5s;
}

header{
    min-height: 100vh;
    width: 100%;
    background: url("./img/air.jpg") no-repeat top center / cover;
    position: relative;
}

.overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    /* background-color: rgba(43, 52, 59, 0.391); */
    display: flex;
    justify-content: center;
    align-items: center;
}

.inner{
    max-width: 35rem;
    text-align: center;
    color: #fff;
    padding: 0 2rem;
}
.inner p{
    margin-bottom: 2rem;
}

.title{
    font-size: 30px;
}

.btn{
    margin-top: 1rem;
    padding: 0.6rem 1.8rem;
    background-color: rgba(128, 0, 128, 0.594);
    border: none;
    border-radius: 25px;
    color: #fff;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    font: bold;
}
.btn:hover{
    background-color: white;
    color: purple;
    border: 1.5px solid;
}

.container.active .bar {
    transform: rotate(360deg);
    background-color: transparent;
}

.container.active .bar:before {
    transform: translateY(0) rotate(45deg);
}

.container.active .bar:after {
    transform: translateY(0) rotate(-45deg);
}

.container.active .main {
    animation: main-animation 0.5s ease;
    cursor: pointer;
    transform: perspective(1300px) rotateY(20deg) translateZ(100px) scale(0.5);
}

@keyframes main-animation{
    from{
        transform: translate(0)
    }

    to{
        transform: perspective(1300px) rotateY(20deg) translateZ(100px) scale(0.5);
    }
}

.links {
    position: absolute;
    width: 30%;
    right: 0;
    top: 0;
    height: 100vh;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;

}

ul {
    list-style: none;
}

.links a {
    text-decoration: none;
    color: orangered;
    padding: 0.7rem 0;
    display: inline-block;
    font-size: 1rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: 0.3s; 
    opacity: 0;
    transform: translateY(10px);
    animation: hide 0.5s forwards ease;
}

.links a:hover {
    color: purple;
}

.container.active .links a{
    animation: appear 0.5s forwards ease var(--i);

}

@keyframes appear {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0px);
    }
}

@keyframes hide {
    from {
        opacity: 1;
        transform: translateY(0px);
    }

    to {
        opacity: 0;
        transform: translateY(10px);
    }
}


.shadow {
    position: absolute;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    transform-style: preserve-3d;
    transform-origin: left;
    transition: 0.5s;
    background-color: white;
}

.shadow.one{
    z-index: -1;
    opacity: 0.15;
}

.shadow.two{
    z-index: -2;
    opacity: 0.1;
}

.container.active .shadow.one{
    animation: shadow-one 0.6s ease-out;
    transform: perspective(1300px) rotateY(20deg) translateZ(80px) scale(0.5);
}

@keyframes shadow-one{
    0%{
        transform: translate(0);
    }

    5%{
        transform: perspective(1300px) rotateY(20deg) translateZ(90px) scale(0.5);
    }
    100%{
        transform: perspective(1300px) rotateY(20deg) translateZ(80px) scale(0.5);
    }

}

/* shadow two */
.container.active .shadow.two{
    animation: shadow-two 0.6s ease-out;
    transform: perspective(1300px) rotateY(20deg) translateZ(120px) scale(0.5);
}

@keyframes shadow-two{
    0%{
        transform: translate(0);
    }

    20%{
        transform: perspective(1300px) rotateY(20deg) translateZ(310px) scale(0.5);
    }
    100%{
        transform: perspective(1300px) rotateY(20deg) translateZ(120px) scale(0.5);
    }

}

.container.active .main:hover + .shadow.one{
    transform: perspective(1300px) rotateY(20deg) translateZ(120px) scale(0.5);
} 

.container.active .main:hover{
    transform: perspective(1300px) rotateY(20deg) translateZ(120px) scale(0.5);
} 


/* index */