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

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    font-family: "Poppins", sans-serif;
}

:root {
    --bg-color: #1f242d;
    --second-bg-color: #323946;
    --main-color: rgb(40, 216, 232);
    --white-color: #ffffff;
    --disabled-color: #fff3;
}

html{
    font-size: 62.5%;
    font-weight: 450;
}

body {
    color: var(--white-color);
}

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

header.active{
    animation: show-header 1s linear forwards;
    animation-delay: .8s;
}

@keyframes show-header{
    100%{
        visibility: visible;
        opacity: 1;

    }
}

.logo{
    font-size: 3rem;
    font-weight: 700;
    color: var(--white-color);
}

nav a{
    font-size: 2rem;
    color: var(--white-color);
    font-weight: 500;
    margin-left: 3.5rem;
    transition: .5s;
}

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

#menu-icon{
    font-size: 4rem;
    display: none;
} 

/* ----bars section------ */
.bars-box{
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
}

.bars-box .bar{
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    animation: hide-bars .5s ease-in-out both;
    animation-delay: calc(.1s * var(--i));
}

@keyframes hide-bars{
    100% {
    transform: translateY(-100%);
}

}

.bars-box.active .bar{
    animation: show-bars .5s ease-in-out both;
    animation-delay: calc(.1s * var(--i));
}

@keyframes show-bars{
    0%{
        transform: translateY(-100%);
    }
    100%{
        transform: translateY(0);
    }
}


section {
    position: absolute;
    width: 100%;
    height: 100%;
    padding: 10rem 9% 2rem;
    visibility: hidden;
    opacity: 0;
    overflow: hidden;
}

section.active {
    animation: show-content 1s linear forwards;
    animation-delay: .8s;
}

@keyframes show-content {
    100%{
    visibility: visible;
    opacity: 1;
    overflow: auto;
    }
}

.home {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 5rem;
   
}

.home-detail h1{
    font-size: clamp(3rem, 7vh, 3.5rem);
    margin-bottom: 2rem;
    
}

.home-detail h2{
    display: inline-block;
    font-size: 2.5rem;
    margin-top: -1rem;
    
}

.home-detail h2 span {
    position: relative;
    display: inline-block;
    color: transparent;
    -webkit-text-stroke: .05rem var(--main-color);
    animation: display-text 9s linear infinite;
    animation-delay: calc(-3s * var(--i));
    animation-fill-mode: forwards;
}

@keyframes display-text {
    25%, 
    100% {
        display: none;
    }
}

.home-detail h2 span::before {
    content: attr(data-text);
    position: absolute;
    width: 0;
    border-right: .2rem solid var(--main-color);
    color: var(--main-color);
    white-space: nowrap;
    overflow: hidden;
    animation: fill-text 3s linear infinite;

}

@keyframes fill-text {
    10%, 100% {
        width: 0;
    }
    70%,100% {
        width: 100%;
    }
}

.home-detail p{
    font-size: 1.6rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
}

.home-detail p span {
    color: var(--main-color);
    font-weight: 500;
}

.home-detail .btn-sci{
    margin-top: 2rem;
    display: flex;
    align-items: center;
}

.btn{
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--main-color);
    border: .2rem solid var(--main-color);
    border-radius: 3rem;
    box-shadow: 0 0 .5rem var(--main-color);
    font-size: 1.5rem;
    color: var(--bg-color);
    font-weight: 500;
    transition: .5s;
}

.btn:hover {
    background: transparent;
    color: var(--main-color);
    box-shadow: none;
}

.home-detail .btn-sci .sci{
    margin-left: 1.5rem;
}

.home-detail .btn-sci .sci a{
    display: inline-block;
    margin-left: 1rem;
    padding: .8rem;
    border: .2rem solid var(--main-color);
    border-radius: 40%;
    font-size: 2rem;
    color: var(--main-color);
    margin: 0 .8rem;
    transition: .5s;
}

.home-detail .btn-sci .sci a:hover {
    background: var(--main-color);
    color: var(--bg-color);
    box-shadow: 0 0 .5rem var(--main-color);
}

.home-img .img-box {
    position: relative;
    width: 30rem;
    height: 30rem;
    border-radius: 50%;
    padding: .5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.home-img .img-box .img-item {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    border-radius: 50%;
    border: .01rem solid var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
    overflow: hidden;
   
}

.home-img .img-box::before,
.home-img .img-box::after {
    content: '';
    position: absolute;
    width: 50rem;
    height: 50rem;
    border-radius: 50%;
    background: conic-gradient(transparent, transparent, transparent, var(--main-color));
    transform: rotate(0deg);
    animation: rotate-border 10s linear infinite;
}

.home-img .img-box::after {
    animation-delay: -5s;
}

@keyframes rotate-border {
    100% {
        transform: rotate(360deg);
    }
}

.home-img .img-box .img-item img{
    position: absolute;
    top: 3rem;
    display: block;
    width: 85%;
    object-fit: cover;
    mix-blend-mode: lighten;
}



  /* services section */
.heading{
    font-size: 4.5rem;
    text-align: center;
    margin-bottom: 2rem;
}

.heading span {
    color: var(--main-color);
}

.services .desc{
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.services-container{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
    gap: 2rem;
}

.services-container .services-box{
    padding: 3rem 2.5rem;
    background: var(--second-bg-color);
    border: .2rem solid var(--second-bg-color);
    border-radius: 1rem;
    transition: .5s;
}

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

.services-box .icon{
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.services-box .icon i{
    font-size: 3rem;
    transition: .5s;
}

.services-box:hover .icon :not(a i){
    color: var(--main-color);
}


.services-box .icon a {
    display: inline-flex;
    background: var(--white-color);
    border-radius: 50%;
    padding: .5rem;
    transition: .5s;
}

.services-box:hover .icon a {
    background: var(--main-color);
}

.services-box .icon a i{
    font-size: 3rem;
    color: var(--bg-color);
    transform: rotate(225deg);
}

.services-box .icon a:hover i{
    transform: rotate(180deg);
}

.services-box h3{
    font-size: 3rem;
    margin: .5rem 0 2rem;
    transition: .5;
}

.services-box:hover h3{
    color: var(--main-color);
}
.services-box p{
   font-size: 1.5rem;
}


/* Resume section */
.resume-container{
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 5rem;
}

.resume-box h2{
    font-size: 4rem;
}

.resume-box p{
    font-size: 1.5rem;
}

.resume-box .desc{
    margin: 2rem 0 2.5rem;
}

.resume-box .resume-btn{
    width: 100%;
    height: 5.3rem;
    background: var(--second-bg-color);
    border: .2rem solid var(--second-bg-color);
    font-size: 1.5rem;
    color: var(--white-color);
    font-weight: 500;
    margin-bottom: 2rem;
    border-radius: .8rem;
    cursor: pointer;
}

.resume-box .resume-btn.active {
    border-color: var(--main-color);
    color: var(--main-color);
}


.resume-detail{
    display: none;
}

.resume-detail.active{
    display: block;
}

.resume-box .heading{
    font-size: 3.5rem;
    text-align: left;
}

.resume-list{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
    gap: 2rem;
    overflow: auto;
}

.resume-list::-webkit-scrollbar{
    width: .7rem;
}

.resume-list::-webkit-scrollbar-thumb{
    background: transparent;
    border-radius: 1rem;
}

.resume-list:hover::-webkit-scrollbar-thumb{
    background: var(--main-color);
}

.resume-list .resume-item{
    background: var(--second-bg-color);
    border-radius: .8rem;
    padding: 3rem 2.5rem;
    height: calc((45rem - 2rem) / 2);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.resume-item .year{
    color: var(--main-color);
}

.resume-item h3{
    font-size: 2.2rem;
}

.resume-item .company{
    position: relative;
    margin-left: 2rem;
    margin-bottom: 2rem;
}

.resume-item .company::before{
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    padding: .5rem;
    background: var(--main-color);
    border-radius: 50%;
    margin-left: -2rem;
}

.resume-detail.skills .resume-list{
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    height: auto;
    overflow: visible;
}


.resume-detail.skills .resume-item{
    position: relative;
    align-items: center;
    height: auto;
}

.resume-detail.skills .resume-item i{
    font-size: 8.5rem;
    transition: .5s;
}

.resume-detail.skills .resume-item:hover i{
    color: var(--main-color);
}

.resume-detail.skills .resume-item:hover span {
    position: absolute;
    background: var(--white-color);
    font-size: 1.5rem;
    padding: .5rem 1rem;
    border-radius: .5rem;
    pointer-events: none;
    transform: scale(.9);
    top: -25%;
    opacity: 1;
    transform: scale(1);
    background: #536310;
}

/* ----Publication--- */
.grid-section {
      /* max-width: 900px; */
      height: fit-content;
      text-align: center;

      margin: auto;
      font-size: 1.5rem;
      display: grid;
      grid-template-rows: repeat(4, auto); /* 4 full-width rows */
      gap: 1.5rem;
      cursor: pointer;
    }

    .grid-item {
      background: var(--second-bg-color);
      border-radius: 10px;
      padding: 1rem 2rem;
      box-shadow: 0 2px 8px rgba(162, 158, 158, 0.1);
    }

    .grid-item h3 {
      /* margin-top: 0; */
      margin-bottom: 0.8rem;
      font-size: 2rem;
      text-align: center;
      color: aqua;
      /* border-bottom: 2px solid #5cabc8; */
      padding-bottom: 0.2rem;
    }

    .grid-item p {
      margin: 0.5rem 0;
    color: rgb(104, 197, 141);
     
    }

    .grid-item ul {
      padding-left: 1rem;
      margin: 0.5rem 0;
    }

    .grid-item ul li {
      margin-bottom: 0.5rem 1rem;
    }

    .grid-item h4{
        font-size: 1.6rem;
        font-weight: 500;
       
    }




.resume-detail.about .resume-list{
    height: auto;
    grid-template-columns: repeat(auto-fit, minmax(25rem, 1fr));

}

.resume-detail.about .resume-item{
    height: auto;
    padding: 0 0 .5rem;
    background: transparent;

}

.resume-detail.about .resume-item p{
    color: var(--main-color);
    background-color: var(--bg-color);
}

.resume-detail.about .resume-item p span{
    color: var(--white-color);
    margin-left: 1rem;
    font-size: 1.5rem;

}



/* ---project section---- */
.project-container{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.project-detail{
    display: none;
}

.project-detail.active{
    display: block;
}

.project-box .numb{
    font-size: 4.5rem;
    -webkit-text-stroke: .07rem var(--white-color);
    color: transparent;
    line-height: 1;
}

.project-box h3{
    font-size: 3.5rem;
    margin: .8rem 0 2rem;
}

.project-box p{
    font-size: 1.5rem;
}

.project-box .tech{
    margin: 2rem 0;
    color: var(--main-color);
    border-bottom: .1rem solid var(--white-color);
    padding-bottom: 2rem;
}

.project-box .live-github a{
    position: relative;
    display: inline-flex;
    padding: 1.3rem;
    font-size: 3rem;
    color: var(--white-color);
    border-radius: 50%;
    background: var(--second-bg-color);
    transition: .5s;

}

.project-box .live-github a:hover{
    color: var(--main-color);
}

.project-box .live-github a:first-child{
    margin-right: 1.5rem;
}

.project-box .live-github a:first-child i{
    transform: rotate(135deg);
}

.project-box .live-github a span{
    position: absolute;
    top: -60%;
    left: 50%;
    transform: translateX(-50%) scale(.9);
    font-size: 1.5rem;
    white-space: nowrap;
    padding: .5rem 1rem;
    border-radius: .6rem;
    pointer-events: none;
    background: var(--white-color);
    color: var(--bg-color);
    opacity: 0;
    transition: .2s;
}

.project-box .live-github a:hover span{
    top: -70%;
    opacity: 1;
    transform: translateX(-50%) scale(.9);
}

.project-box .project-corousel{
    width: 100%;
    height: 45rem;
    border-radius: 1rem;
    overflow: hidden;

}

.project-corousel .img-slide{
    display: grid;
    grid-auto-flow: column;
    grid-template-columns: 100%;
    grid-template-columns: repeat(6, 100%);
    gap: 2rem;
    height: inherit;
    transition: .5s;
}

.project-corousel .img-item{
    height: inherit;
}

.project-corousel .img-item img{
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1rem;
}

.project-box .navigation{
    text-align: center;
    margin-top: 2rem;

}

.project-box .navigation button{
    display: inline-flex;
    padding: .4rem;
    background: var(--second-bg-color);
    border: .2rem solid var(--main-color);
    border-radius: .6rem;
    font-size: 4rem;
    color: var(--main-color);
    cursor: pointer;
}

.project-box .navigation button.disabled{
     border-color: var(--second-bg-color);
     color: var(--disabled-color);
}

.project-box .navigation .arrow-right{
    margin-left: 1.5rem;
}



/* ---contact section--- */
.contact-container{
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-container .contact-box:first-child{
    align-self: center;
}

.contact-box h2{
    font-size: 3rem;
}

.contact-box p{
    font-size: 1.5rem;
}

.contact-box .desc{
    margin: 1.5rem 0 2.5rem;
}
.contact-box .contact-detail{
    display: flex;
    align-items: center;
    margin: 2rem 0;
}

.contact-detail i{
    display: inline-flex;
    background: var(--second-bg-color);
    color: var(--main-color);
    font-size: 3rem;
    padding: 1.2rem;
    border-radius: .6rem;
    margin-right: 1.5rem;

}

.contact-detail .detail p:first-child{
    color: var(--main-color);
}

.contact-box form{
    background: var(--second-bg-color);
    padding: 2.5rem 3.5rem 3.5rem;
    border-radius: 1rem;
    text-align: center;
}

.contact-box .heading{
    font-size: 3rem;
}

.contact-box .field-box{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.contact-box .field-box input,
.contact-box .field-box textarea{
    padding: 1.5rem;
    background: var(--bg-color);
    border: .15rem solid var(--bg-color);
    border-radius: .5rem;
    font-size: 1.5rem;
    color: var(--white-color);
}

.contact-box .field-box textarea{
    grid-column: 1 / -1;
    height: 20rem;
    
}

.contact-box .field-box input:focus,
.contact-box .field-box textarea:focus{
    border-color: var(--main-color);
}

.contact-box .btn{
    margin-top: 2rem;
    cursor: pointer;
}

/*------ footer------ */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg-color);
  color: #fff;
  text-align: center;
  padding: 1rem 0;
  font-size: 1.4rem;
  border-top: 1px solid #101010;
  z-index: 1;
}


.footer i {
  color: crimson;
  margin: 0 4px;
}



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

@media screen and (max-width: 992px) {
    header{
        padding: 2rem 4%;
    } 
    section{
        padding: 10rem 4% 2rem;
    }
}

@media screen and (max-width: 810px) {
    .contact-box .field-box{
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    #menu-icon{
        display: block;
    }
    nav{
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1rem 0;
        background: var(--bg-color);
        border-top: .1rem solid rgb(0, 0, .2);
        box-shadow: 0 .5rem 1rem rgb(0, 0, .2);
        text-align: center;
        display: none;
    }

    nav.active{
        display: block;
    }

    nav a {
        display: block;
        margin: 4rem 0;
    }
    .home{
        flex-direction: column-reverse;
        justify-content: center;
        gap: 2rem;
    }
    .home-img .img-box{
        width: 26rem;
        height: 26rem;
    }
    .resume-container,
    .project-container,
    .contact-container{
        grid-template-columns: 1fr;
    }
    .resume-container{
        gap: 3rem;
    }

    .project-container .project-box:first-child{
        order: 1;
    }

    .contact-box .field-box{
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 600px) {
    .home-img .img-box{
        width: 22rem;
        height: 22rem;
    }

    .contact-box .field-box{
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 450px) {
    html{
        font-size: 40%;
    }
}

@media screen and (max-width: 400px) {
    .home-detail,
    .resume-box h2,
    .resume-box .heading,
    .resume-box .desc,
    .resume-detail.about .resume-item{
        text-align: center;
    }

    .home-detail .btn-sci{
        flex-direction: column-reverse;
        margin-bottom: 1rem;

    }
     .home-detail .btn-sci .sci{
        margin-left: 0;
        margin-bottom: 2rem;
        margin-top: 1rem;
     }

}