/* General */

@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;
}

body{ 
    font-family: "Poppins", sans-serif;
    font-weight: 300;
    font-style:normal;
}
 
body.fade-out { opacity: 0; }   /* Fade out to new pages  */
body { transition: opacity .15s ease; }


.fade-in-1 { 
  opacity: 0; transform: translateX(-40px);        
  transition: opacity 1s ease, transform 1s ease;
}

.fade-in-2 { 
  opacity: 0; transform: translateY(100px);        
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-3 { 
  opacity: 0; transform: translateY(100px) rotate(1deg);        
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-1.visible,
.fade-in-2.visible,
.fade-in-3.visible
 {opacity: 1;transform: none;}



html{
    scroll-behavior: smooth;
}

p {
    color:  rgb(85, 85, 85);
}

/* Transition */

a, .btn {
    transition: all 300ms ease;
}

/* Nav */

nav, 
.nav-links {
    display: flex; 
    /* allow symbols to be change automatiacally as the 
    screen changes */
} 

nav {
    justify-content: space-around;
    align-items: center;
    height: 15vh;
}

.nav-links{
    gap: 2rem;
    list-style: none;
    font-size: 1.5rem;
}

.quote{
    gap: 2rem;
    list-style: none;
    font-size: 1rem;
    font-style: italic;
    margin-top: 1rem;
}

a {
    color: black;
    text-decoration: none;
    text-decoration-color: white;
}

a:hover{
    color: rgb(255, 191, 0);
    text-decoration: underline;
    text-underline-offset: 1rem;
    text-decoration-color: rgb(255, 191, 0);
}

.logo{
    font-size: 2rem;
}

.logo-top{
    font-size: 3rem;
    margin-top: 20rem;
}

.logo:hover{
    cursor: default;
}


#threebar-nav{
    display: none;
}


.threebar-menu{
    position: relative;
    display: inline-block;
}


.threebar-icon{
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 24px;
    width: 30px;
    cursor: pointer;
}



.threebar-icon span{
    width: 100%;
    height: 2px;
    background-color: black;
    transition: all 0.1s ease-in-out;
}


.menu-links{
    position: absolute;
    top: 100%;
    right: 0%;
    background-color: white;
    width: fit-content;
    max-height: 0;
    overflow: hidden;
    transition: all 0.1s ease-in-out;
}


.menu-links a {
    display: block;
    padding: 10px;
    text-align: center;
    font-size: 1.5rem;
    color :black;
    text-decoration: none;
    transition: all 0.1s ease-in-out;
}

.menu-links li {
    list-style: none;
}

.menu-links.open{

    max-height: 300px;
}

.threebar-icon.open span:first-child{
    transform: rotate(45deg) translate(10px,5px);
}

.threebar-icon.open span:nth-child(2){
    opacity: 0;
}

.threebar-icon.open span:last-child{
    transform: rotate(-45deg) translate(10px,-5px);
}


.threebar-icon span:first-child{
    transform: none;
}

.threebar-icon span:first-child{
     opacity: 1;
}

.threebar-icon span:first-child{
     opacity: none;
}


/* Sections */

section {
    padding-top: 4vh;
    height: 96vh;
    margin: 0 10rem;
    box-sizing: border-box;
    min-height: fit-content;
}

.section-container{
    display: flex;
}

/* profile section*/

#profile{
    display: flex;
    justify-content: center;
    gap: 5rem;
    height: 80vh;
}

.section__pic-container {
    display: flex;
    height: 550px;
    width: 550px;
    margin: auto 0;
}

.section__text{
    align-self: center;
    text-align: center;
}

.section__text p{
    font-weight: 600;
}

.section__text__p1 {
    text-align: center;
}

.section__text__p2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.title {
    font-size: 3rem;
    text-align: center;
}

.full-project-title {
    font-size: 35px;
    text-align: center;
}

.socials-container{
    display: flex;
    justify-content: center;
    margin-top: 1rem;
    gap: 1rem;
}

/* Icons */

.icon{
    cursor: pointer;
    height: 2rem;
}

.icon-profile{
    height: 6rem;
    cursor: default;
}

.icon-profile2{
    height: 4rem;
    cursor: default;
}

.icon-about{
    height: 4.5rem;
    cursor: default;
}

.icon-exp{
    height: 3.5rem;
    cursor: default;
}

.icon-exp-2{
    height: 2.8rem;
    cursor: default;
}

.icon-exp-3{
    height: 4rem;
    cursor: default;
}


.icon-exp-4{
    height: 6rem;
    cursor: default;
}

/* button*/

.btn-container{
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn{
    font-weight: 600;
    transition: all 300ms ease;
    padding: 1rem;
    width:8rem;
    border-radius: 2rem;
}

.btn-color-1,
.btn-color-2{
    border: rgb(53, 53, 53) 0.1rem solid;
}

.btn-color-1:hover,
.btn-color-2:hover{
    cursor: pointer;
    background: rgb(255, 191, 0);
    color: black;
}



/* About section */

#about{
    position: relative;
}

.about-containers{
    gap: 2rem;
    margin-bottom: 2rem;
    margin-top: 2rem;
}

.about-details-container{
    justify-content: center;
    flex-direction: column;
}

.about-containers,
.about-details-container{
    display: flex;
}

.about-pic{
    border-radius: 2rem;

    -webkit-mask-image: linear-gradient(
    to right,
    rgba(0,0,0,1) 70%,   /* keep 70% fully visible */
     rgba(0,0,0,0) 100%   /* fade only on last 30% */
   );
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: cover;  

}

.arrow {
    position: absolute;
    right: -5rem;
    bottom: 2.5rem;
    height: 3.5rem;
}

.arrow_up {
    position: absolute;
    right: -5rem;
    top: 2.5rem;
    height: 3.5rem;
}

.arrow_back {
    position: absolute;
    left: -1.5rem;
    top: 0rem;
    height: 3rem;
}

.arrow_back2 {
    position: absolute;
    left: 1.5rem;
    top: 1rem;
    height: 3rem;
}

.arrow_back_bottom {
    display: block;
    width: auto;
    height: 3rem;
    margin: 2rem 0;
    cursor: pointer;
}

.details-container{
    padding: 1.5rem;
    flex: 1;
    background: white;
    border-radius: 2rem;
    border: black 0.1rem solid;
    border-color: black;
    text-align:  center;
}

.section-container{
    gap: 4rem;
    height: 80%;
}

.section__pic-container{
    height: 500px;
    width: 500px;
    margin: auto 0;
}

       
.selfie-profile{      /* a "profile" style temp here*/
    height: 300px;
    width: 300px;
    margin: auto 0;}


/* Experience section */

#experience{
    position: relative;
}

.experience-sub-title{
    color: black;
    font-weight: 600;
    font-size: 1.75rem;
    margin-bottom: 2rem;
}

.experience-details-container{
    display: flex;
    justify-content: center;
    flex-direction: column;
}

.article-container{
    display: flex;
    text-align: initial;
    flex-wrap: wrap;
    flex-direction:row;
    gap: 2.5rem;
    justify-content: space-around;
}

article{
    display: flex;
    width: 10rem;
    justify-content: space-around;
    gap: 0.5em;
}

article .icon{
    cursor: default;
}

/* Projects section */

#projects{
    position: relative;
}

.color-container{
    border-color: black;
    background: white;
}

.project-img{
    border-radius: 1rem;
    width: 90%;
    height: 90%;
}

.project-title{
    margin: 1rem;
    color: black;
}

.project-btn{
    color: black;
    border-color: whitesmoke;
}


/* Contact  */

#contact {
    display: flex;
    justify-content: center;
    flex-direction: column;
    height: 70vh;
}

.contact-info-upper-container{
    display: flex;
    justify-content: center;
    border-radius: 2rem;
    border: black 0.1rem solid;
    border-color: black;
    background: white;
    margin: 2rem auto;
    padding: 0.5rem;
}

.contact-info-container{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 1rem;
}

.contact-info-container p{
    font-size: larger;
}

.contact-icon{
    cursor: default;
}

.email-icon{
    height: 2.5rem;
}

/* WeChat QR Code  */

.qr-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  justify-content: center;
  align-items: center;
  z-index: 1000;

  /* keep only ONE display here */
  display: none;
}

/* Visible when opened */
.qr-modal.open {
  display: flex;
}

.qr-content {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  max-width: 300px;
  width: 80%;
  position: relative;
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.qr-close {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 24px;
  font-weight: bold;
  cursor: pointer;
}

.qr-image {
  width: 100%;
  height: auto;
  margin: 10px 0;
}



/* Footer  */

footer{
    height: 26vh;
    margin: 0 1rem;
}

footer p{
   text-align: center;
}


/* All the Projects */

.logo-top-projects{
    font-size: 3rem;
    margin-top: 10rem;
    margin-left: 3rem;
}

.people{
    gap: 2rem;
    list-style: none;
    font-size: 19px; 
    font-style: italic;
    text-align: left;
}

.Full-Project-text{
    gap: 2rem;
    list-style: none;
    font-size: 19px;
    line-height: 1.8;
}

.Full-Project-title{
    gap: 2rem;
    list-style: none;
    font-size: 28px;
    font-weight: bold;   
}

.Full-Project-figure-title{
    gap: 2rem;
    list-style: none;
    font-size: 17px; 
    font-style: italic;
    text-align: center;
}

.project-images-wrapper {
    display: flex;
    justify-content: center; /* center them horizontally */
    gap: 1rem;               /* space between the two */
}
.project-img-container {
    padding: 1.5rem;
    flex: 1;                 /* they share available width equally */
    background: white;
    border-radius: 2rem;
    
    text-align: center;
}