/* Global */

:root {
    /* color */
    --color-white: #ffffff;
    --color-light-white: #eeeeee;
    --color-dark-white: #bdbdbd;
    --color-python-yellow: #fffd75;
    --color-python-blue: #8FCEFF;
    --color-python-blue-with: #DDDDFF;
    --color-pink: #fe918d;
    --color-dark-pink:#ff6863;
    --color-black:#4d4d4d;
    --color-dark-grey:#4d4d4d;
    --color-grey: #616161;
    --color-light-grey: #7c7977;
    --color-blue:#73aace;
    --color-light-blue: #5291f7;
    --color-yellow: #fff7d1;
    --color-orange: #feb546;
    --color-black: #000000;
    


    /* Font size */
    --font-large: 48px;
    --font-medium: 28px;
    --font-regular: 18px;
    --font-small: 16px;
    --font-micro: 14px;

    /* Font weight */
    --weight-bold: 700;
    --weight-semi-bold: 600;
    --weight-regular: 400;

    /* Size */
    --size-border-radius: 4px;

}

/* Universal tags */
* {
    box-sizing: border-box;
    /* border-box하면 패딩줘도 동일하게 box 사이즈 결졍됨 */
    
}

body {
    margin: 0;
    font-family: 'Roboto Mono', monospace;
    cursor: default;
}

a {
    text-decoration: none;
    color: var(--color-white);
}

ul {
    list-style: none;
    padding-left: 0px;
    
}

button {
    background-color: transparent;
    cursor: pointer;
    border: none; 
    outline: none;
}
/* Typograpgy */
h1 {
    font-size: var(--font-large);
    font-weight: var(--weight-semi-bold);
    color: var(--color-black);
    margin: 16px 0px;
}

h2 {
    font-size: var(--font-medium);
    font-weight: var(--weight-bold);
    color: var(--color-light-grey);
    margin: 8px 0px;
}

p {
    color: var(--color-light-grey);
}

h3 {
    font-size: var(--font-regular);
    font-weight: var(--weight-regular);
    color: var(--color-light-grey);
    margin: 8px 0px;
}

p {
    font-size: var(--font-regular);
    font-weight: var(--weight-regular);
    color: var(--color-light-grey);
    margin: 4px 0px;
}

/* section common */
.section {
    padding: 50px;
    text-align: center;
    max-width: 1200px;
    margin: auto;
    transition: all 300ms ease-in;
}

.section__container {
    max-width: 1200px;
}

.section__transparent {
    transition: all 300ms ease-in;
    opacity: 0.3;
}

.transparent {
    transition: all 300ms ease-in;
    opacity: 0.3;
}

/* navbar */
#navbar {
    position: fixed;
    display: flex;
    width: 100%;
    justify-content: space-between;
    background-color: var(--color-python-blue);
    align-items: center;
    padding: 16px;
    /* background-color: transparent; */
    z-index: 1;

}

.navbar__transparent {
    transition: all 300ms ease-in-out;
    opacity: 0.8;
}

.navbar__logo {
    font-size: var(--font-medium);
    font-weight: var(--weight-semi-bold);
    color: var(--color-white);
}
.navbar__logo a{
    color: var(--color-white);
}

.navbar__menu {
    display: flex;
}

.navbar__menu__item {
    padding: 8px 12px;
    margin: 0 8px;
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--color-white);

    border: 1px solid transparent;
    border-radius: var(--size-border-radius);
    transition: all 300ms ease-in-out;
}

/* .navbar__menu__item.active {
    border: 1px solid var(--color-white);
    border-radius: var(--size-border-radius);
} */

.navbar__menu__item:hover {
    background-color: transparent;
    border: 1px solid var(--color-white);
    border-radius: var(--size-border-radius);
    animation: trans 1s;
    animation-fill-mode: forwards;
    transform: scale(1.2);
    transition: all 300ms ease-in-out;
}
@keyframes trans {
    
    0% {
        transform: translateY(0px);
    }

    25% {
        transform: translateY(-5px);
    }

    
    75% {
        transform: translateY(5px);
    }

    100% {
        transform: translateY(0px);
    }

}

.navbar__toggle__btn{
    color: var(--color-white);
    position: absolute;
    right: 32px;
    top: 22px;
    font-size: 24px;
    display: none;

}

/* Home */
#Home {
    background: url('images/navbar_bacground.png') center/cover no-repeat; 
    padding: 40px;
    align-items: center;
    text-align: center;
    position: sticky;
    padding-top: 180px;

}

.home__avatar {
    
    width: 350px;
    height: 350px;
    border-radius: 50%;
    border: 3px solid var(--color-light-white);
    

}

.home__title, 
.home__description {
    color: var(--color-white);
}

.home__contact {
    font-size: var(--font-regular);
    font-weight: var(--weight-bold);
    margin: 24px;
    padding: 8px 12px;
    border: 2px solid var(--color-white);
    border-radius: var(--size-border-radius);
    color: var(--color-white);
    transition: 300ms linear;
}

.home__contact:hover {
    transform: scale(1.2);
    transition: 300ms linear;
}

/* About */
.about__majors {
    display: flex;
    justify-content: space-between;
    margin: 80px 0px;
}


.major__icon {
    width: 170px;
    height: 170px;
    font-size: 70px;
    line-height: 170px;
    margin: auto;
    border: 2px solid var(--color-python-blue);
    border-radius: 50%;
    margin-bottom: 16px;
    color: var(--color-python-blue);

}

.major__title, 
.major__description {
    margin-bottom: 20px;
    color: var(--color-dark-grey);
}
.major__description {
    font-size: var(--font-small);
}


.fas.fa-gamepad {
    animation: target_image_3 3s; 

    animation-iteration-count: infinite;

    transform-origin: 0% 50% 100%;
}

@keyframes target_image_3 {

    0% { transform: translateY(30px) } 
    
    50% { color: var(--color-pink); }
    50% { transform: translateY(-30px); }
    
    100% { transform: translateY(30px); }
    
}

.fab.fa-windows {
animation: target_image_2 3s; 

animation-iteration-count: infinite;

transform-origin: 0% 50% 100%;

}

.sexyboy {

    animation: target_image_2 3s; 
    
    animation-iteration-count: infinite;
    
    transform-origin: 0% 50% 100%;
    
    }

@keyframes target_image_2 {

0% { transform: translateX(20px) } 

50% { color: var(--color-dark-grey); }

50% { transform: translateX(-20px); }

100% { transform: translateX(20px); }

}

.fas.fa-brain {

animation: target_image 3s; 

animation-iteration-count: infinite;

transform-origin: 0% 50% 100%;
}

@keyframes target_image {

0% { transform: rotate(-10deg); } 

50% { color: var(--color-orange); }
50% { transform: rotate(180deg); }

100% { transform: rotate(-10deg); }

}

.major__icon i{
    transition: 300ms linear;
}

.job {
    display: flex;
}

.job__logo {
    width: 100px;
    height: 50px;
    margin-right: 20px;
    align-items: center;
}

.job__description {
    margin: 0px 16px;
    text-align: left;
}

.job__name,
.job__period {
    color: var(--color-dark-grey);
}

.job__name {
    font-size: var(--font-small);
}

.job__period {
    font-size: var(--font-micro);
}


.job__logo {
    border: 2px solid var(--color-python-blue);
    transition: 300ms linear;
    border-radius: var(--size-border-radius);
    padding: 5px;
}

.job__logo:hover{
    cursor: pointer;
    transform: scale(1.1);
    transition: 300ms linear;
}

/* skills */

#skills {
    background-color: var(--color-python-blue);
}

.skillset{
    display: flex;
    background-color: var(--color-light-grey);
    color: var(--color-light-white);
    margin: 50px 0;
}

.skillset__title{
    color: var(--color-white);
}

.skillset__left {
    flex-basis: 60%;
    background-color: var(--color-dark-grey);
    padding: 20px 40px;
    
}

.skillset__right{
    flex-basis: 40%;
}

.tools{
    background-color: #7a807e;
}

.skill_description {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.skill__bar {
    width: 100%;
    height: 3px;
    background-color: var(--color-python-blue);
    margin-bottom: 18px;   
}

.skill__value {

    height: 3px;
    background-color: var(--color-python-yellow);
}

.tools,
.etc {
    padding: 20px;
}

/* Work */

.catagories__btn {
    border:2px solid var(--color-python-blue);
    border-radius: var(--size-border-radius);
    font-size: var(--font-regular);
    padding: 8px 48px;
    margin: 10px;
    color: var(--color-light-grey);
}

.work__catagories {
    margin: 40px;
}

.catagories__btn.active,
.catagories__btn:hover {
    background-color: var(--color-python-blue);
}

.catagories__btn.active .catagories__btn__count,
.catagories__btn:hover .catagory__count {
    opacity: 1;
    top: 0px;
}

.catagory__count {
    background-color:var(--color-white);
    border-radius: 50%;
    color: var(--color-python-blue);
    width: 24px;
    height: 24px;
    display: inline-block;
    line-height:  24px;
    position: relative;
    top: -20px;
    left: 4px;
    opacity: 0;
    transition: 300ms all ease-in;
}


.work__projects {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;

}

.project {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 250px;
    height: 250px;
    margin: 2px;
    background-color: var(--color-dark-white);
    /* border: 1px solid var(--color-light-grey); */

    animation: fade-in 1s;
    /* animation-fill-mode: forwards; */
    display: block;
    
}
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(30px);
        transform: scale(0.9);
        transition: ease-out;
        
    }
    to {
        opacity: 1;
        transform: translateY(0);
        transform: scale(1);
        transition: ease-out;
    }
}

.project.invisible {
    display: none;
    /* animation: fade-out 2s;
    animation-fill-mode: forwards; */
    
}


.project__img {
    width: 250px;
    height: 250px;
    border: 1px solid var(--color-python-blue);
    border-radius: 4px;
}


.project__description {
    position: absolute;
    background-color: var(--color-python-blue);
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    transform: translateY(15px);
    transition: all 300ms ease-in;
}

.project:hover .project__description {
    opacity: 0.9;
    transform: translateY(0px);
}

.project__description h3{
    color: var(--color-light-white);
}

.project__description h3:after{
    content: '';
    display: block;
    position: relative;
    left: 50%;
    margin-left: -40px;
    margin-top: 20px;
    margin-bottom: 20px;
    width: 80px;
    height: 2px;
    background-color: var(--color-dark-white);

}

/* Testimonial */
#testimonials {
    background-color: var(--color-python-blue);
}

.testimonials {
    margin: 40px;
}

.testimonial{
    display: flex;
    justify-content: center;
    align-items: center;
    /* margin: 30px; */
}

.testimonial__avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
}

.testimonial__avatar:nth-child(odd){
    margin-left: 30px;
}

.testimonial__avatar:nth-child(even){
    margin-right: 30px;
}

.testimonial__speech__bubble {
    padding: 10px;
    background-color: var(--color-white);
    margin: 30px;
    border-radius: 10px;
}

.name a{
    color: var(--color-python-blue);
}

.testimonial__speech__bubble p {
    color: var(--color-light-grey);
}


/* contact */
#contact {
    margin-top: 30px;
    margin-bottom: 30px;
}


.contact__email,
.contact__rights {
    color: var(--color-python-blue);
}

.contact__title {
    margin-bottom: 60px;
}

.contact__email {
    margin: 32px;
}

.contact__link {
    width: 400px;
    height: 80px;
    line-height: 80px;
    margin: auto;
    margin-bottom: 0px;
    font-size: var(--font-large);
    background-color: var(--color-python-blue);
    border-radius: 10px;
}

.contact__link i{
    transition: all 300ms ease-in;
}

.fab.fa-github{
    margin-right: 30px;
}

.fab.fa-instagram {
    margin-left: 30px;
}

.contact__link i:hover{
    transform: scale(1.2);
    transition: 300ms ease-in;
}

.icon__description {
    width: 300px;
    margin: auto;
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.icon__description p{
    color: var(--color-python-blue);
}

.icon__description p:nth-child(1){
    margin-right: 30px;
}

.icon__description p:nth-child(2){
    margin-left: 32px;
}

.icon__description.Git{
    flex-basis: 50%;
}

.icon__description.Insta{
    flex-basis: 50%;
}

/* make arrow btn */

.arrow__btn {
    position: fixed;
    right: 50px;
    bottom: 50px;
    padding: 0px;
    border-radius: 50%;
    transition: all 300ms ease-in;
    opacity: 0;
    pointer-events: none;
}

.arrow__btn:hover {
    transform: translateY(-10px);
    transition: all 300ms ease-in;
    
}

.fas.fa-arrow-circle-up{
    
    font-size: 70px;
    color: var(--color-python-blue);
    background-color: var(--color-white);
    border: 1px solid var(--color-white);
    border-radius: 50%;
    
}

.visible {
    opacity: 1;
    transition: all 300ms ease-in;
    pointer-events:visible;
}

.project_visible { 
    display: block;
}

.project_unvisible{
    display: none;
}

/* make scroll bar */
.beScrollbar{
    overflow: scroll;
}

.beScrollbar::-webkit-scrollbar {
    width: 10px;
    height: 0px;
    background-color: transparent;
    
}

.beScrollbar::-webkit-scrollbar-thumb{
    background-color: var(--color-python-blue);
    border-radius: 20px;
    border: 1px solid var(--color-white);
}

/* .scroll_box {
    width: 100px;
    height: 80px;
    background-color: black;
    position: fixed;
    left: 50px;
    bottom: 50px;
} */


/* make project events */


/* for below 768px screen width */
@media screen and (max-width: 768px) {
    .navbar__toggle__btn {
        display: block;
    }
    #navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar__menu{
        flex-direction: column;
        text-align: center;
        width: 100%;
        display: none;
        
    }

    .navbar__menu__item {
        margin: 10px;
        display: flex;
        justify-content: center;
        transition: all 300ms ease-in;
    }
    .navbar__menu__item:hover {
        transform: scale(1.06);
        transition: all 300ms ease-in;
        
    }

    .about__majors {
        flex-direction: column;
    
    }
    .major {
        margin: 35px;
    }


    .skillset {
        flex-direction: column;
    }

    .project {
        flex-grow: 1;
    }

    .project__img {
        width: 100%;
        height: 100%;
    }

    .testimonial__avatar {
        width: 80px;
        height: 80px;
    }


    .arrow__btn {
        display: none;
    }

}