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

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

header {
    display: flex;
    width: 90%;
    height: 10vh;
    margin: auto;
    align-items: center;
}

.logo-container,.nav-links, .cart { 
    display: flex;
}

.logo-container { 
   flex: 1;
}
.logo { 
    font-weight: 400;
    margin: 5px;
}
nav{
    flex: 2;
}
.nav-links { 
    justify-content: space-between;
}
.nav-link{
    color: #5f5f79;
    font-size: 18px;
    text-decoration: none;
}
.cart{  
    flex: 1;
    justify-content: flex-end;
}
.presentation {
    display: flex;
    width: 90%;
    margin: auto;
    min-height: 80vh;
    align-items: center;
}
.introduction{
    flex: 1;
}
.intro-text h1{
    font-size: 44px;
    font-weight: 500;
    background: linear-gradient(to right, #494964, #6f6f89);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.intro-text p { 
    margin-top: 5px;
    font-size: 22px;
    color: #585772;
}
.cta { 
    padding: 50px 0px 0px 0px;
}
.cta-select { 
    border: 2px solid #c36cbb;
    background: transparent;
    color: #c36cbb;
    width: 150px;
    height: 50px;
    cursor: pointer;
    font-size: 16px;
}
.cta-add { 
    background: #c36cbb;
    width: 150px;
    height: 50px;
    cursor: pointer;
    font-size: 16px;
    border: none;
    color: #fff;
    margin: 30px 0px 0px 30px;
}
.cover { 
    flex: 1;
    display: flex;
    justify-content: center;
}
.cover img {
    height: 60vh;
    filter: drop-shadow(0px 10px 5px black);
    animation: drop 1.5s ease;
}
.big-circle {
    position: absolute;
    top: 0px;
    right: 0px;
    z-index: -1;
    opacity: 0.7;
    height: 80%;
}
.medium-circle { 
    position: absolute;
    top: 30%;
    right: 30%;
    opacity: 0.5;
    z-index: -1;
    height: 60%;
}
.small-circle { 
    position: absolute;
    bottom: 0%;
    left: 20%;
    z-index: -1;
}
.laptop-select {
     width: 15%;
     display: flex;
     justify-content: space-around;
     position: absolute;
     right: 25%;
}

@keyframes drop {
    0% {
        opacity: 0;
        transform: translateY(-100px);
    }
    100% { 
        opacity: 1;
        transform: translateY(0px);
    }
}

@media screen and (max-width: 1024px){
    .presentation{
       flex-direction: column;
    }
    .introduction {
        margin-top: 5vh;
        text-align: center;
    }
    .intro-text h1{
        font-size: 30px;
    }
    .intro-text p { 
      font-size: 18px;
    }
    .cta { 
        padding: 10px 0px 0px 0px ;
    }
    .laptop-select {
        bottom: 3%;
        right: 30%;
        width: 40%;
        transform: translateY(50%, 5%);
    }
    .cover img {
        height: 350px;
    }
    .small-circle,
    .medium-circle,
    .big-circle {
        opacity: 0.2;
    }
    .logo-container,.nav-links, .cart { 
      font-size: 1px;
    }
}