*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    
}

:root {
    --bg-color: #1f242d;
    --second-bg-color: #323946;
    --text-color: #fff;
    --main-color: #0ef;
     
}

html {
    font-size: 62.5%;
    overflow-x: hidden;
}

body {
    background: var(--bg-color);
    color: var(--text-color);
}


section {
    min-height: 100vh;
    padding: 10rem 9% 2rem;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 9%;
    background: var(--bg-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}

.header.sticky{
    border-bottom: .1rem solid rgba(0, 0, 0, .2);
}

.logo {
    font-size: 2.5rem;
    color: var(--text-color);
    font-weight: 600;
    cursor: default;
}

.navbar a{
    font-size: 1.7rem;
    color: var(--text-color);
    margin-left: 4rem;
    transition: .3s;
}

.navbar a:hover, 
.navbar a.active{
    color: var(--main-color);
}

#menu-icon{
    font-size: 3.6rem;
    color: var(--text-color);
    display: none;
}
 
.home{
    display: flex;
    justify-content: center;
    align-items: center;
}

#img1{
    width: 100%;
    height: 90%;
    border-radius: 10%;

}

.home-content h3{
    font-size: 2.5rem;
    font-weight: 700;
    
}

.home-content h1{
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.3;
}

span{
    color: var(--main-color);
}
.home-content p {
    margin: 15px 0 15px 0;
    font-size: 1.8rem;
}
.home-content{
    margin-right: 10%;
}

.btn {
    display: inline-block;
    padding: 1rem 2.8rem;
    background: var(--main-color);
    border-radius: 4rem;
    box-shadow: 0 0 1rem var(--main-color);
    font-size: 1.6rem;
    color: var(--second-bg-color);
    letter-spacing: .1rem;
    font-weight: 600;
    transition: .5s ease;
}

.btn:hover{
    box-shadow: none;
}

.about {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: var(--second-bg-color);
}

#img3 {
    width: 80%;
    height: 90%;
    margin-right: 20px;
    border-radius: 10%;
}

.about-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
}
.about-content h2 {
    font-size: 3.1rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

.about-content h1{
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.3;
}

.about-content p {
    margin-top: 15px;
    font-size: 1.6rem;
}

.about-titles{
    display: flex;
    margin: 20px 0 20px;
}
.about-links{
    margin-right:50px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    position: relative;
}

.about-links::after{
    content: '';
    width: 0;
    height: 3px;
    background: var(--main-color);
    position: absolute;
    left: 0;
    bottom: -8px;
    transition: 0.5s;
}

.about-links.active-link::after{
    width: 50%;
}

.tab-contents ul li{
    list-style: none;
    margin: 10px 0;
    font-size: 16px;
}

.tab-contents ul li span{
    font-size: 16px;
}

.tab-contents{
    display: none;

}

.tab-contents.active-tab{
    display: block;
}

.service h2 {
  margin-bottom: 5rem;
  font-size: 3.1rem;  
  text-align: center;
}

.service-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.service-container .service-box {
     flex: 1 1 30rem;
     background: var(--second-bg-color);
     padding: 3rem  2rem 4rem;
     border-radius: 2rem;
     text-align: center;
     border: .2rem solid var(--bg-color);
     transition: .5s ease;
}

.service-container .service-box:hover{
      border-color: var(--main-color);
      transform: scale(1.02);
}

.service-box i{
    color: var(--main-color);
    font-size: 7rem;
}

.service-box h3{
    font-size: 2.6rem;
}

.service-box p{
   font-size: 1.6rem; 
   margin: 1rem  0 3rem;

}

.portfolio {
    background: var(--second-bg-color);
}

.portfolio h2{
    margin-bottom: 4rem;
    font-size: 3.1rem;
    text-align: center;
}

.portfolio-container{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    align-items: center;
    gap: 2.5rem;
    margin-bottom: 5rem;
}

.portfolio-container .portfolio-box {
    position: relative;
    border-radius: 2rem;
    box-shadow: 0 0 1rem var(--bg-color);
    overflow: hidden;
    display: flex;
}

.portfolio-box img {
    width: 100%;
    transition: .5s ease;
}

.portfolio-box:hover img{
    transform: scale(1.1);
}

.portfolio-box .portfolio-layer {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, .1), var(--main-color));
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    padding: 0 4rem;
    transform: translateY(100%);
    transition: .5s ease;
}

.portfolio-box:hover .portfolio-layer{
    transform: translateY(0);
}

.portfolio-layer h4{
    font-size: 4rem;
}

.portfolio-layer p{
    font-size: 1.6rem;
    margin: .3rem 0 1rem;
}

.portfolio-layer a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 5rem;
    height: 5rem;
    background: var(--text-color);
    border-radius: 50%;
}

.portfolio-layer a i{
    font-size: 2rem;
    color: var(--second-bg-color);
}

.contact h2{
    margin-bottom: 5rem;
    font-size: 3.1rem;
}

.contact form{
    max-width: 70rem;
    margin: 1rem auto;
    text-align: center;
    margin-bottom: 3rem;
}

.contact form .input-box{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.contact form .input-box input, .contact form textarea{
    width: 100%;
    padding: 1.5rem;
    font-size: 1.6rem;
    color: var(--text-color);
    background: var(--second-bg-color);
    border-radius: .8rem;
    margin: .7rem 0;
}

.contact form .input-box input{
    width: 49%;
}

.contact form textarea{
    resize: none;
}
.contact form .btn{
    margin-top: 2rem;
    cursor: pointer;
}

.contact-contents{
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#msg{
    text-align: center;
    font-size: 2rem;
    display: block;
    margin-top: -15px;
}

.social-media a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4rem;
    height: 4rem;
    border: .2rem solid var(--main-color);
    background: transparent;
    border-radius: 50%;
    font-size: 2rem;
    color: var(--main-color);
    margin: 3rem 1.5rem 3rem 0;
    transition: .5s ease;
    
}

.social-media a:hover{
   background: var(--main-color);
   color: var(--second-bg-color);
   box-shadow: 0 0 1rem var(--main-color) ;
}
.social-media{
   justify-content: center;
   display: flex;
   text-align: center;
}

.footer{
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 9%;
    background: var(--second-bg-color);
}

.footer-text p{
    font-size: 1.6rem;
}

.footer-iconTop a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: .8rem;
    background: var(--main-color);
    border-radius: .8rem;
    transition: .5s ease;

}
.footer-iconTop a:hover{
    box-shadow: 0 0 1rem var(--main-color);

}

.footer-iconTop a i {
    font-size: 2.4rem;
    color: var(--second-bg-color);
}


/* breakpoints */
@media (max-width: 1200px){
    html {
        font-size: 55%;
    }
}

@media (max-width: 991px) {
    .header {
        padding: 2rem 3%;
    }

    section {
        padding: 10rem 3% 2;
    }

    .contact{
        min-height: auto;

    }

    .footer{
        padding: 2rem 3%;
    }
}
@media (max-width: 768px) {
    #menu-icon {
        display: block;
    }
    .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1rem 3%;
        background: var(--bg-color);
        border-top: .1rem solid rgba(0, 0, 0, .2);
        box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .2);
        display: none;
    }

    .navbar.active {
        display: block;
    }

    .navbar a {
        display: block;
        font-size: 2rem;
        margin: 3rem 0;
    }
    .home {
        flex-direction: column;
    }
    .home-content h3 {
        font-size: 2.6rem;
    }
    .home-content h1 {
        font-size: 5rem;
    }

    .home-img img {
        width: 70vw;
        margin-top: 4rem;
        border-radius: 10%;
    }
    .home-img{
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .about{
        flex-direction: column-reverse;
    }

    .about-img {
        margin: 4rem auto;
        padding: auto;
        justify-content: center;
        align-items: center;
        display: flex;
    }

    .about-img img{
        width: 70vw;
        border-radius: 10%;
    }

    .service h2{
        margin-bottom: 3rem;
    }

    .portfolio h2{
        margin-bottom: 3rem;
    }
    .portfolio-container{
        grid-template-columns: repeat(1, 1fr);
    }
}

@media (max-width: 617px){
    .portfolio-container{
        grid-template-columns: repeat(1, 1fr);
    }

    .home-content h1{
        font-size: 4.2rem;
        font-weight: 700;
        line-height: 1.3;
    }
}

@media (max-width: 450px){
    html{
        font-size: 50%;
    }
    .home-content h1{
        font-size: 4.2rem;
        font-weight: 700;
        line-height: 1.3;
    }

    .contact form .input-box input{
       width: 100%; 
    }
}

@media (max-width: 365px){
    .home-img{
        width: 90vw;
    }
    .home-content h1{
        font-size: 3rem;
        font-weight: 700;
        line-height: 1.3;
    }
    
    .about-img{
        width: 90vw;
    }
    .footer{
        flex-direction: column-reverse;
    }
    .footer p{
        text-align: center;
        margin-top: 2rem;
    }
}