@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    list-style: none;
    border: none;
    outline: none;
    font-family: "Poppins", sans-serif;
}
:root{
    --nav-bg-color:rgba(109, 107, 107, 0.11);
    --bg-color:#192323;
    --second-bg-color:#212728;
    --third-bg-color:#2a3437;
    --main-color:#00eeff;
    --white-color:#fff;
    --tab-list-color:#848a9a;
}
::selection{
    background:var(--main-color) ;
    color: var(--bg-color);
}
::-webkit-scrollbar{
    width: .5rem;
}
::-webkit-scrollbar-thumb{
    background: var(--main-color);
    border-radius: 1rem;
}
::placeholder{
    color: var(--white-color);
}
html{
    font-size: 62.5%;
}
body{
    color: var(--white-color);
    overflow: hidden;
}
p{
    font-size:1.6rem; 
}
.nav{
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 40rem;
    padding: 2rem 0;
    background: var(--nav-bg-color);
    border-radius: 5rem;
    z-index: 100;
    animation: animate-nav 1s ease-in-out backwards;
    animation-delay: 4s;
}

@keyframes animate-nav{
    0%{
        visibility: hidden;
        opacity: 0;
    }
    100%{
        visibility: visible;
        opacity: 1;
    }
}

.nav .nav-list{
    display: flex;
    justify-content: space-evenly;
}
.nav-list li{
    position: relative;
    display: flex;
    font-size: 3rem;
    cursor: pointer;
    transition: .3s;
}
.nav-list li:hover, .nav-list li.active{
    color: var(--main-color);
}
.tooltip{
    position: absolute;
    top: -4rem;
    left: 50%;
    transform: translateX(-50%);
    padding: .3rem 1rem;
    background: var(--main-color);
    border-radius: .4rem;
    font-size: 1.6rem;
    color: var(--bg-color);
    font-weight: 500;
    white-space: nowrap;
    visibility: hidden;
    opacity: 0;
    transition: .3s;
}
.nav-list li:hover .tooltip, a:hover .tooltip ,.portfolio-item:hover .work-info{
    visibility: visible;
    opacity: 1;
}
.container{
    width: 100vw;
    height: 100vh;
    perspective: 1500px;
    perspective-origin: 50%;
}
.box{
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transform-origin: 50% 50% -50vw;
    transform: rotateY(0deg);
    transition: 2.2s;
    animation: animate-cube 4s ease-in-out backwards;
}
@keyframes animate-cube{
    0%{
        transform: scale(0) rotateY(-360deg);
    }
    100%{
        transform: scale(1) rotateY(0deg);
    }
}
.section{
    position: absolute;
    width: 100%;
    height: 100%;
    background:var(--bg-color);
    padding: 0 10%;
    backface-visibility: hidden;
}
.home,.about{
    display: flex;
    align-items: center;
    gap: 5rem;
}
.gradient{
    background: linear-gradient(to right,#f8fafa, #d5d3d3);
    background-size: 200%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: animate-gradient 2.5s linear infinite;
}
.home-info h1{
    font-size:5.5rem ;
    color: var(--main-color);
    line-height: 1;
}
.home-info h3{
    font-size: 3rem;
}
.desc{
    margin: 1rem 0 2rem;
}
.home-info .btn-sci{
    display: flex;
    align-items: center;
}
.btn{
    display: inline-flexbox;
    padding: 1.2rem 3rem;
    background: var(--main-color);
    border-radius: 5rem;
    box-shadow: 0 0 1rem var(--main-color);
    font-size: 1.6rem;
    color: var(--bg-color);
    font-weight: 600;
    transition: .3s;
}
.btn:hover{
    box-shadow: none;
}
.home-info .btn-sci .sci{
    margin-left: 2rem;
}
.home-info .btn-sci .sci a{
    position: relative;
    display: inline-flex;
    padding: .8rem;
    border: .2rem solid var(--main-color);
    border-radius: 50% ;
    font-size: 2rem;
    color: var(--main-color);
    margin: 0 .8rem;
    transition: .3s;
}
.home-info .btn-sci .sci a:hover{
    background-color: var(--main-color);
    color: var(--bg-color);
}
.img-box{
    position: relative;
    width: 32vw;
    height: 32vw;
    background: linear-gradient(var(--bg-color),var(--main-color));
    border-radius: 50%;
    border: .5rem solid var(--main-color);
    box-shadow: 0 0 2rem var(--main-color);
    display: flex;
    justify-content: center;
    overflow: hidden;
    transition: 1s;
}
.img-box.home-img:hover{
    box-shadow: 0 0 8rem var(--main-color);
}
.img-box img{
    position: absolute;
    left: 1%;
    top: 1rem;
    display: block;
    width: 80%;
    object-fit: cover;
}
.home-img img{
    left: 19%;
}
.section:nth-child(even){
    background: var(--second-bg-color);
}
.section.about{
    transform: translateX(50vw) translateZ(-50vw) rotateY(90deg);
}
.img-box.about-img{
    background: transparent;
    box-shadow: 0 0 2rem var(--main-color), inset 0 0 1rem var(--main-color);
}
.img-box.about-img img{
    z-index: -1;
}
.title{
    font-size: 4rem;
    text-align: center;
}
.about-info .title{
    text-align: left;
}
.about-info h3{
    font-size: 2.5rem;
    color: var(--main-color);
    margin-top: -1rem ;
}
.about-info .btn{
    padding: 1.2rem 4rem ;
}
.section.resume{
    transform: translateZ(-100vw) rotateY(-180deg);
    transform-origin: 50%;
}
.resume, .portfolio{
    padding-top: 2rem;
    padding-bottom: 28rem;
}
.tab-box{
    display: flex;
    width: 100%;
    height: 5rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
}
.tab-list{
    display: flex;
    align-items: center;
    width: 100%;
    border-bottom: .3rem solid var(--tab-list-color);
    cursor: pointer;
    color: var(--tab-list-color);
    transition: .5s;
}
.tab-list.resume-list.active , .tab-list.portfolio-list.active  {
    border-color: var(--main-color);
    color: var(--main-color);
}
.resume-list:nth-child(2){
    justify-content: center;
}
.resume-list:nth-child(3){
    justify-content: flex-end;
}
.tab-list h3{
    font-size: 2.5rem;
}
.tab-wrapper{
    position: relative;
    width: 100%;
    height: 100%;
}
.tab-grid {
    position: absolute;
    height: 100%;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fit , minmax(35rem,1fr));
    gap: 2rem;
    overflow-y: auto;
    overflow-x: hidden;
    visibility: hidden;
    opacity: 0;
    transform: scale(.8);
}
.tab-grid.resume-box.active ,.tab-grid.portfolio-box.active {
    visibility: visible;
    opacity: 1;
    transform: scale(1);
    transition: .5s;
}
.tab-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--third-bg-color);
    border-radius: .8rem;
    padding:2rem
}
.tab-item h4{
    font-size: 2.3rem;
}
.resume-item h4:nth-child(1) ,
 .resume-item h4:nth-child(3){
    font-size: 1.7rem;
    color: var(--main-color);
    font-weight: 400;
}
.resume-item h4:nth-child(3){
    position: relative;
    color: var(--white-color);
    margin-left: 2rem;
}
.resume-item h4:nth-child(3)::before{
    content: '';
    position: absolute;
    left: -2rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1rem;
    height: 1rem;
    background: var(--main-color);
    border-radius: 50%;
}
.tab-item p{
    margin-top: 1rem;
}
.resume-box.skills{
    grid-template-columns: repeat(auto-fit, minmax(16rem , 1fr));
}
.resume-box.skills .resume-item{
    align-items: center;
}
.resume-box.skills .resume-item i{
    font-size: 8rem;
    transition: .3s;
}
.resume-box.skills .resume-item i:hover{
    color: var(--main-color);
}
.resume-box.skills.resume-item p{
    margin-top: 0;
}
.section.portfolio{
    transform: translateX(-50vw) translateZ(-50vw) rotateY(-90deg);
}
.portfolio-list:nth-child(2){
    justify-content: flex-end;
}
.portfolio-box.work .portfolio-item{
    position: relative;
}
.portfolio-box.work .portfolio-item::before{
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--third-bg-color);
    border-radius: .8rem;
    z-index: 1;
    opacity: 0;
    transition: .3s;
}
.portfolio-box.work .portfolio-item:hover::before{
    opacity: .9;
}
.portfolio-item .work-img{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: .8rem;
    overflow: hidden;
}
.portfolio-item .work-img img{
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;  
    transition: .3s;
}
.portfolio-item:hover .work-img img{
    transform: scale(1.2);
    opacity: 0.5;
}
.portfolio-item .work-info{
    z-index: 1;
    visibility: hidden;
    opacity: 0;
    transition: .3s;
}
.portfolio-item .work-info h4{
    line-height: 1;
}
.portfolio-item .work-info .tech-used{
    color: var(--main-color);
    border-bottom: .1rem solid var(--white-color);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}
.portfolio-item .portfolio-icon a{
    position: relative;
    display: inline-flex;
    padding: 1rem;
    background: var(--white-color);
    border-radius: 50%;
    font-size: 2.5rem;
    color: var(--bg-color);
    transition: .3s;
}
.portfolio-item .work-icon a:hover{
    background: var(--main-color);
}
.portfolio-item .work-icon a:nth-child(1){
    margin-right: 1rem;
}
.portfolio-item .work-icon a:nth-child(1) i{
    transform: rotate(135deg);
}
.tab-grid.portfolio-box.hi {
  display: flex;
  flex-direction: column; /* stack each .certificates-grid vertically */
  gap: 3rem; /* space between rows */
  align-items: center;
}

.certificates-grid {
  display: flex;
  gap: 1.5rem; /* space between images */
  flex-wrap: wrap; /* wrap on small screens */
  justify-content: center;
}

.certificates-grid img {
  max-width: 300px;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
}
.contact{
    padding-top: 2rem;
    padding-bottom: 18rem;
}
.contact-wrapper{
    display: flex;
    justify-content: center;
    height: 100%;
}
.contact-form{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 70rem;
}
.contact-form h3{
    font-size: 3rem;
    color: var(--main-color);
    margin-bottom: 1rem;
}
.contact-form .field-box{
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}
.contact-form .field-box input,.contact-form .field-box textarea{
    flex: 1 1 30rem;
    padding: 2rem;
    background: var(--third-bg-color);
    border-radius: .6rem ;
    font-size: 1.6rem;
    color: var(--white-color);
}
.contact-form .field-box textarea{
    height: 20rem;
    resize: none;
}
.contact-form .contact-btn{
    margin-top: 2rem;
}
.contact-form .contact-btn .btn{
    cursor: pointer;
}
.section.contact{
    visibility: hidden;
    transition-delay: .5s;
}
.section.contact.active{
    visibility: visible;
}
.section.contact.action-contact{
    transition-delay: 1.5s;
}
.section.contact.action-contact.active{
    transition-delay: 0s;
}

@media screen and (max-width:1200px) {
    html{
        font-size: 55%;
    }
}
@media screen and (max-width:992px){
    .section{
        padding: 0 4%;
    }
    .resume, .portfolio{
        padding-top: 1.5rem;
        padding-bottom: 27rem;
    }
    .contact{
        padding-top: 1.5rem;
        padding-bottom: 18rem;
    }
} 
@media screen and (max-width:768px){
    html{
        font-size: 50%;
    }
    .nav{
        bottom: 0;
    }
    .home,.about{
        flex-direction: column-reverse;
        justify-content: center;
        gap: 2rem;
        padding-bottom: 6rem;
    }
    .about{
        flex-direction: column;
    }
    .img-box{
        width: 35rem;
        height: 35rem;
    }
    .resume,.portfolio{
        padding-bottom: 25rem;
    }
    .contact{
        padding-bottom: 16rem;
    }
}
@media screen and (max-width:600px){
    .resume,.portfolio{
        padding-top: 1rem;
        padding-bottom: 22rem;
    }
    .tab-box{
        margin-top: 0;
    }
    .contact{
        padding-top: 1rem;
    }
}
@media screen and (max-width:400px){
    .nav{
        width: 100%;
        border-radius: 0;
    }
    .home-info,.about-info{
        text-align: center;
    }
    .home-info h1{
        font-size: 5rem;
    }
    .home-info .btn-sci{
        flex-direction: column-reverse;
    }
    .home-info .btn-sci .sci{
        margin-left: 0;
        margin-bottom: 2rem;
    }
    .img-box{
        width: 30rem;
        height: 30rem;
    }
    .about-info .title{
        text-align: center;
    }
}
@media screen and (max-width:350px){
    .img-box{
        width: 25rem;
        height: 25rem;
    }
    .tab-list h3{
        font-size: 2.3rem;
    }
}