@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;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(255, 255, 255, .1);
    --bg-color: #171f2b;
    --second-bg-color: #1f2733;
    --third-bg-color: #2d3542;
    --main-color: #0ef;
    --white-color: #fff;
    --tab-list-color: #7c8594;
}

::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-family: var(--white-color);
}

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: 1000;
    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: 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;
}

.section:nth-child(even) {
    background: var(--second-bg-color);
}

.section.about {
    transform: translateX(50vw) translateZ(-50vw) rotateY(90deg);
}

.section.resume {
    transform: translateZ(-100vw) rotateY(-180deg);
    transform-origin: 50%;
}    

.section.portfolio {
    transform: translateX(-50vw) translateZ(-50vw) rotateY(-90deg);
}

.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;
}

.home,
.about {
    display: flex;
    align-items: center;
    gap: 5rem;
}

.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-flex;
    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-right: 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: 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;
    top: 3rem;
    display: block;
    width: 85%;
    object-fit: cover;
}

.img-box.about-img {
    background: transparent;
    box-shadow: 0 0 2rem var(--main-color), inset 0 0 1rem;
}

.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;
}

.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%;
    cursor: pointer;
    border-bottom: .3rem solid var(--tab-list-color);
    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;
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(30rem, 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:hover i{
    color: var(--main-color);
}

.resume-box.skills .resume-item p {
    margin-top: 0;
}

.portfolio-item .work-img,
.resume-box.certificate .work-img {
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: .8rem;
}

.portfolio-item .work-img img,
.resume-box.certificatee .work-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: 0.3s ease;
}

.portfolio-list:nth-child(2) {
    justify-content: flex-end;
}

.portfolio-box.work .portfolio-item,
.resume-box.certificate .portfolio-item{
    position: relative;
}

.portfolio-box.work .portfolio-item::before,
.resume-box.certificate .portfolio-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: var(--third-bg-color);
    border-radius: .8rem;
    z-index: 1;
    opacity: 0;
    transition: .3s;
}

.portfolio-box.work .portfolio-item:hover::before,
.resume-box.certificate .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);
}

.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);
}

.portfolio-item .service-icon {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: .5rem;
}

.portfolio-item .service-icon .icon {
    font-size: 5rem;
    margin-left: -.3rem;
    transition: .3s;
}

.portfolio-item:hover .service-icon .icon {
    color: var(--main-color);
}

.portfolio-item:hover .service-icon a {
    background: var(--main-color);
}

.portfolio-item .service-icon a i {
    transform: rotate(-135deg);
    transition: .3s;
}

.portfolio-item .service-icon a:hover i {
    transform: rotate(-180deg);
}    

.portfolio-box.service .portfolio-item h4 {
    transition: .3s;
}

.portfolio-box.service .portfolio-item:hover h4 {
    color: var(--main-color);
}

.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;
}

#music-player {
  position: fixed;
  bottom: 20px; 
  right: 20px;  
  z-index: 9999;
  display: flex;
  align-items: center; 
  gap: 10px;
  cursor: grab; 
}

#music-btn,
#prev-btn,
#next-btn {
  background-color: rgba(0, 255, 255, 0.9);
  color: #111;
  border: none;
  border-radius: 50%;
  
  display: grid;
  place-items: center;
  
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
  cursor: pointer;
  transition: transform 0.2s ease-in-out, background-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

#music-btn {
  width: 65px;  
  height: 65px; 
}


#prev-btn,
#next-btn {
  width: 50px;  
  height: 50px;
}


#music-btn i {
    font-size: 45px; 
}

#prev-btn i,
#next-btn i {
    font-size: 30px; 
}

#music-btn:hover,
#prev-btn:hover,
#next-btn:hover {
  transform: scale(1.1);
  background-color: #00ffff;
  box-shadow: 0 0 25px #00ffff;
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 15px rgba(0, 255, 255, 0.7); }
  50% { box-shadow: 0 0 30px #00ffff; } 
  100% { box-shadow: 0 0 15px rgba(0, 255, 255, 0.7); }
}

#music-btn.playing {
  animation: pulseGlow 1.5s ease-in-out infinite alternate; 
}

@keyframes professionalPulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
    opacity: 1;
  }
  50% {
    transform: scale(1.05); 
    box-shadow: 0 0 30px #00ffff, 0 0 60px #00ffff; 
    opacity: 0.9; 
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
    opacity: 1;
  }
}


#music-btn.playing {
  animation: professionalPulse 2s ease-in-out infinite alternate; 
}  

@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;
    }
}

@media screen and (max-width: 600px) {
    

    #music-player {
        bottom: 80px;
        right: 25px;
        gap: 5px;
    }

    #music-btn {
        width: 50px; 
        height: 50px;
    }

 
    #prev-btn,
    #next-btn {
        width: 40px; 
        height: 40px;
    }

    #music-btn i {
        font-size: 32px; 
    }
    #prev-btn i,
    #next-btn i {
        font-size: 24px; 
    }
}

@media screen and (max-width: 400px) {

    #music-player {
        bottom: 100px;
        right: 15px;
        gap: 3px;
    }

    #music-btn {
        width: 45px; 
        height: 45px;
    }

    #prev-btn,
    #next-btn {
        width: 35px; 
        height: 35px;
    }

    #music-btn i {
        font-size: 28px; 
    }
    #prev-btn i,
    #next-btn i {
        font-size: 20px; 
    }
}

@media screen and (max-width: 360px) {
    #music-player {
        bottom: 110px;
        right: 10px;
        gap: 2px;
    }

    #music-btn {
        width: 40px;
        height: 40px;
    }

    #prev-btn,
    #next-btn {
        width: 30px; 
        height: 30px;
    }

    #music-btn i {
        font-size: 25px; 
    }
    #prev-btn i,
    #next-btn i {
        font-size: 18px; 
    }
}

@media screen and (max-width: 450px) {
    #music-player {
        bottom: 90px; 
        right: 20px;  
        gap: 4px;    
    }

    #music-btn {
        width: 42px; 
        height: 42px;
    }

    #prev-btn,
    #next-btn {
        width: 32px; 
        height: 32px;
    }

    #music-btn i {
        font-size: 26px; 
    }    

    #prev-btn i,
    #next-btn i {
        font-size: 19px; 
    }
}