@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@100;300;400;500;600;700;800;900&display=swap');

:root{
    --base-color: #2b2b2b;
    --first-shade: #4e5283;
    --second-shade: #7871aa;
    --neutral-color: #aa9fb1;
    --light-shade: #cca7a2;
    --lighter-shade: #d9bbf9;

}

body{
    font-family: 'Montserrat', sans-serif;
    font-size: 16px;
    display: grid;
    grid-template-columns: 20% 1fr 20%;
    grid-template-rows: calc(70px + 2rem) auto 100px;
    grid-template-areas: 
        "nav nav nav"
        "left-s main right-s"
        "footer footer footer";
    height: 100vh;
    color: white;
    background-color: var(--base-color);
}

*{
    margin: 0;
    padding: 0;
}

a, li, button {
    all: unset;
}

#placeholder{
    align-self: center;
    display:flex;
    justify-content: center;
}

#navigation-bar {
    margin-top: .5rem;
    grid-area: nav; /*Naming for grid layout*/
    display: grid;
    grid-template-columns: 20% 1fr 20%;
    box-sizing: border-box;
    height: 70px;
    width: 100%;
    padding: 0 2rem;
    align-items: center;

    position: fixed;
    z-index: 1000;
    /* background-image: url('haewon.jpg'); */
}

#logo{
    box-sizing: border-box;
}

#logo a{
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    line-height: 1.2;
    cursor: pointer;
    justify-self: start;
}

#logo img{
    width: 60px;
    height: auto;
    border-radius: 50%;
    background-color: var(--lighter-shade);

    box-sizing: border-box;
}

#logo p {
    white-space: nowrap;
}

#nav-btn{
    width: 500px;
    height: 60px;
    border-radius: 30px;
    justify-self: center;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    gap: 15px;
    align-items: center;
    
    border: 0.1px rgba(0, 0 ,0 , rgba(255, 255, 255, 0.2)) solid;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: width 0.3s ease;

}

#burger-btn{
    display: none !important;
}

#nav-btn li a, #burger-btn{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 95px;
    height: 40px;
    border-radius: 20px;

    font-weight: bold;
    font-size: 14px;

    border: 0.1px rgba(0, 0 ,0 , rgba(255, 255, 255, 0.2)) solid;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    cursor: pointer;
    box-sizing: border-box;
}

#nav-btn li :hover{
    transform: translatey(-2px);
    background-color: var(--first-shade) !important;
}

.active{
    background-color: var(--second-shade) !important; 
}

#resume-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 5px;
    justify-self: end;
    gap: 5px;
    font-size: 14px;
    line-height: 1.2;
    cursor: pointer;
    text-align: end;
}

#resume-btn a{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    background-color: var(--second-shade);
    border-radius: 30px;
    color: white;

    font-size: 14px;
    font-weight: bold;

    cursor: pointer;
    box-sizing: border-box;
}


#right-side {
    grid-area: right-s; /*Naming for grid layout*/
}

#left-side {
    grid-area: left-s; /*Naming for grid layout*/
}

#main-content {
    grid-area: main; /*Naming for grid layout*/
    padding: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.hero-section{
    box-sizing: border-box;
    text-align: center;
    padding-bottom: 4rem;
}

.hero-section img {
    width: 200px;
    height: auto;
    border-radius: 50%;
    background-color: var(--lighter-shade);
    margin: 25px 0;
}

.hero-section h1{
    color: #ab27ff;
    font-size: 41px;
}

.hero-section p{
    font-size: 26px;
    font-weight: bolder;
    margin: 5px;
}

.hero-msg{
    padding: 2rem 0;
    box-sizing: border-box;
}

.hero-msg span {
    display: inline-block;
    font-size: 26px;
    font-weight: bold;
    width: 16ch;
    white-space: nowrap;
    overflow: hidden;
    border-right: 4px white solid;
    box-sizing: border-box;
    animation: typing 3s steps(16) alternate infinite, blink 1s step-end infinite;
}

@keyframes typing {
    from{
        width: 0;
    }to{
        width: 16ch;
    }
}

@keyframes blink {
    50%{
        border-color: transparent;
    }
}


.social-links{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    gap: 5px;
    box-sizing: border-box;
}

.social-links a{
    display: block;
    cursor: pointer;
}

.social-links svg{
    transition: color 0.2s ease;
}

.social-links svg:hover{
    color: var(--second-shade);
}

.about-section, .project-section{
    padding: 1rem 0;
}

main section:not(.hero-section){
    margin-top: 20%;
}

.heading{
    display: inline-block;
    position: relative;
    font-size: 28px;
    font-weight: bold;
    padding-bottom: 0.25rem;
}

.heading::before{
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--first-shade), var(--light-shade));
    border-radius: 2px;
}

.section-p{
    padding: .75rem 0;
    font-size: 16px;
    text-indent: 2rem;
    text-align: justify;
}

.btn{
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 1rem auto;
    width: 150px;
    height: 40px;
    border-radius: 20px;
    background-color: var(--first-shade);
    cursor: pointer;
    border: 1px rgba(0, 0, 0 , 0.1) solid;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    font-weight: bold;
}

.btn:hover{
    transform: translateY(-4px);
    background-color: var(--second-shade);
}

.timeline{
    padding: .75rem 0;
}

.timeline li {
  display: flex;
  
}

.left {
  width: 150px;
  font-weight: bold;
  font-size: 1rem;
}

.right {
    font-size: 1rem;
}



#footer {
    grid-area: footer; /*Naming for grid layout*/
    display: flex;
    justify-content: center;
    align-items: center;
    color: #bebebe;
    border-top:rgba(255, 255, 255, 0.2) 1px solid;
}

.scroll-animation{
    animation: scroll-in both;
    animation-timeline: view(100% 5%);
    transition: transform 0.3s ease;
}

@keyframes scroll-in {
    from{
        transform: scale(0);
    }to{
        transform: scale(1);
    }
}



@media (max-width: 1050px) {
    #logo p {
        white-space: wrap;
    }

    body {
        grid-template-columns: auto 1fr auto;
    }
}

@media (max-width: 910px) {
    #placeholder{
        align-self: flex-start;
    }
    #logo p, #resume-btn p{
        white-space: nowrap;
    }

    #nav-btn.show{  
        position: absolute;
        align-self: flex-start;
        width: 150px ;
        height: auto ;
        justify-content: start ;
        flex-direction: column ;
        padding: 1rem 0 ;
    }
    #nav-btn li:not(.menu){
        display: none;
    }

    #burger-btn{
        display: flex !important;
        width: 40px;
    }
    #nav-btn.show li {
        display: block;
    }

    #nav-btn{
        width: 70px;
    }
}

@media (max-width: 700px) {
    #logo p, #resume-btn p{
        display: none;
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 0.5s ease-out forwards;
}

@keyframes fadeInUp {
    to {
    opacity: 1;
    transform: translateY(0);
    }
}