@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap');

:root {
    --white: #f9f9f9;
    --dark: black;
    --green-light: #00df5e;
    --yellow: #ff7518;
    --gray: #828282;
    --gray-200: #333333;
    --gray-400: #212121;
    --gray-400-rgb: 33, 33, 33;
    --alpha: 0.8;
  }
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

ul{
    list-style-type: none;
}

a{
    text-decoration: none;
    color: var(--white);
}

body{
    background-color: var(--dark);
    color: var(--white);
    font-size: 16px;
    font-family: 'DM Sans', sans-serif;
    display: flex;
    align-items: center;
    flex-direction: column;
    position: relative;
}
div.container{
    width: 80%;
}

header{
    display: flex;
    justify-self: center;
    width: 100%;
    height: 60px;
    margin-top: 40px;
    top: 0;
    margin-bottom: 83px;
    position: sticky;
    background-color: rgba(var(--gray-400-rgb), var(--alpha));
}
header .content{
    width: 80%;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    
    
}
header .content span.logo{
    font-size: 26px;
    font-weight: 700;
    margin-left: 10%;
    

}

header .content ul{
    display: flex;
    justify-content: space-between;
    gap: 60px;
    font-size: 20px;

}
header .content ul li{
    cursor: pointer;
}

main{
    display: flex;
    justify-content: space-between;
    margin-bottom: 69px;

}

main .left{
    width: 377px;
}
main .left h1{    
    font-size: 2.25rem;
    font-weight: 700;
}
main .left h2{
    font-size: 18px;
    font-weight: 500;
    color: var(--gray);
    margin-top: 18px;
    margin-bottom: 37px;
}

main button {
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}

main .btn .cv {
    width: 143px;
    height: 42px;
    color: var(--dark);
    background-color: var(--yellow);
    border: 0;
    margin-right: 15px;
    padding: 12px, 25px;
}
#pdf{
    color: var(--dark);
}
main .btn .contact{
    width: 160px;
    height: 42px;
    color: var(--white);
    background-color: var(--dark);
    border: 1px solid var(--gray-200);
    padding: 12px, 16px;
}

main .right img{
    max-width: 350px;
}

section.about-me{
    display: flex;
    align-items: center;
    flex-direction: column;
}

section.about-me h2{
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 30px;
}

section.about-me p{
    max-width: 745px;
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--gray);
    line-height: 32px;
    text-align: center;

}

section.contacts{
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 121px;
    margin-bottom: 67px;
    margin-top: 70px;
}

section.contacts div.contact{
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 170px;
    height: 150px;
}

section.contacts div.contact div.icon{
    width: 62px;
    height: 62px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--gray-400);
    border-radius: 31px;
    margin-bottom: 20px;
}

section.contacts div.contact div.icon i{
    font-size: 32px;
    color: var(--yellow);
}

section.contacts span.title{
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 5px;
}

section.contacts span.description{
    font-size: 16px;
    font-weight: 400;
    color: var(--gray);
}

section.projects{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 67px;
}
section.projects h2{
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 30px;
}
section.projects div.cards{
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 45px;
}
section.projects div.card{
    width: 350px;
    height: 240px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--gray-400);
    border: 1px solid var(--gray-200);
    padding: 20px, 25px;
}

section.projects div.cards div.card div.img-project{
    margin-top: 20px;
    width: 300px;
    height: 130px;
    background-color: var(--dark);
    margin-bottom: 23px;
    border: 1px solid var(--gray-200);
}

section.projects div.cards div.card div.description-project{
    width: 300px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

section.projects div.cards div.card div.description-project span.title-project{
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 6px;
}

section.projects div.cards div.card span.tag-project {
    font-size: 14px;
    font-weight: 400;
    color: var(--gray);
  }

section.skills{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 185px;
}
section.skills h2{
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 35px;

}
section.skills div.cards-skills {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 51px;
  }
  
section.skills div.cards-skills div.card-skill {
    width: 150px;
    height: 150px;
    background-color: var(--gray-400);
    border: 1px solid var(--gray-200);
    display: flex;
    justify-content: center;
    align-items: center;
  }

section.skills div.cards-skills div.card-skill i {
    font-size: 5rem;
    color: var(--yellow);
  }
footer{
    width: 100%;
    height: 60px;
    display: flex;
    justify-self: center;
    align-items: center;
    background-color: var(--gray-400);

}

footer span{
    font-size: 16px;
    font-weight: 700;
    color: var(--white);
    margin-left: 45%;
}

footer span a{
    color: var(--yellow);
}

.card-serve i{
    color: var(--gray);
}
div.goto-top{
    display: flex;
    justify-self: center;
    align-items: center;
    width: 50px;
    height: 50px;
    border-radius: 25px;
    background-color: var(--gray-400);
    position: fixed;
    bottom: 60px;
    left: 0;
}
div.goto-top i {
    font-size: 32px;
    color: var(--yellow);
    margin-left: 10px;
  }

.target::before {
    content: '';
    display: block;
    height: 60px; /* fixed header height*/
}

@media screen and (max-width: 900px) {
    header{
        margin-bottom: 30px;
    }
    header .content ul{
        display: none;
    }
    main{
        flex-direction: column-reverse;
        align-items: center;
        margin-bottom: 30px;
    }
    main .left{
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    main .right{
        display: flex;
        align-items: center;
        flex-direction: column;
    }
    main .right img{
        max-width: 70%;
    }
    main .left h1{
        font-size: 1.5rem;
        font-weight: 700;
    }
    main .left h2{
        font-size: 1rem;
        font-weight: 700;
    }
section.about-me {
    margin-bottom: 30px;
  }

section.contacts {
    gap: 0px;
    margin-bottom: 30px;
  }

section.projects {
    margin-bottom: 30px;
  }
  section.skills {
    margin-bottom: 30px;
  }

  .target::before {
    content: '';
    display: block;
    height: 0px; /* fixed header height*/
  }

  section.skills div.cards-skills {
    gap: 25px;
  }

  section.skills div.cards-skills div.card-skill {
    width: 85px;
    height: 75px;
  }

  section.skills div.cards-skills div.card-skill i {
    font-size: 3rem;
  }

}