/*global setup*/
:root {
  --color-white: #ffffff;
  --color-light-white: #eeeeee;
  --color-dark-white: #bdbdbd;
  --color-puple: #a02dfd;
  --color-light-puple: #d8b9f1;
  --color-light-blue: #22c1c3;
  --color-dark-blue: #4895d4;
  --color-black: #000000;
  --color-dark-gray: #4d4d4d;
  --color-gray: #616161;
  --color-light-gray: #7c7979;

  --font-large: 48px;
  --font-medium: 28px;
  --font-regular: 18px;
  --font-small: 16px;
  --font-micro: 14px;

  --weight-bold: 700;
  --weight-semi-bold: 600;
  --weight-regular: 400;

  --size-border-radius: 4px;

  --animation-duration: 300ms;
}

/*universal tags*/
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: "Open Sans", sans-serif;
  cursor: default;
  background: rgb(34, 193, 195);
  background: linear-gradient(
    0deg,
    rgba(34, 193, 195, 1) 0%,
    rgba(72, 149, 212, 1) 38%,
    rgba(81, 138, 216, 1) 63%,
    rgba(160, 45, 253, 1) 100%
  );
}
a {
  text-decoration: none;
  color: var(--color-white);
}
ul {
  list-style: none;
  padding-left: 0;
}
button {
  background-color: transparent;
  cursor: pointer;
  border: none;
  outline: none;
}

/*Typography*/
h1 {
  font-size: var(--font-large);
  font-weight: var(--weight-bold);
  color: var(--color-black);
  margin: 16px 0;
}
h2 {
  font-size: var(--font-medium);
  font-weight: var(--weight-semi-bold);
  color: var(--color-black);
  margin: 8px 0;
}
h3 {
  font-size: var(--font-regular);
  font-weight: var(--weight-regular);
  color: var(--color-black);
  margin: 8px 0;
}
p {
  font-size: var(--font-regular);
  font-weight: var(--weight-regular);
  color: var(--color-black);
  margin: 4px 0;
}

/*navbar*/
#navbar {
  position: fixed;
  display: flex;
  width: 100%;
  justify-content: space-around;
  align-items: center;
  background-color: transparent;
  padding: 16px;
  transition: all var(--animation-duration) ease-in-out;
  z-index: 1;
}
#navbar.navbar--dark {
  padding: 8px;
  background-color: var(--color-puple);
}
.navbar__logo {
  height: 60px;
  display: flex;
  align-items: center;
  color: var(--color-white);
  font-size: var(--font-medium);
  font-weight: var(--weight-semi-bold);
}
.navbar__logo p {
  text-decoration: none;
  font-size: var(--font-medium);
  font-weight: var(--weight-bold);
  color: var(--color-white);
}
.navbar__logo img {
  width: 55px;
  height: 45px;
  margin-right: 10px;
}
.navbar__menu {
  display: flex;
}
.navbar__menu__item {
  padding: 8px 12px;
  margin: 0 4px;
  cursor: pointer;
  color: var(--color-white);
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--color-border-radius);
}
.navbar__menu__item.active {
  border: 1px solid var(--color-white);
  border-radius: var(--size-border-radius);
}
.navbar__menu__item:hover {
  background-color: var(--color-light-puple);
  border-radius: var(--size-border-radius);
  color: var(--color-black);
}
.navbar__toggle-btn {
  position: absolute;
  top: 30px;
  right: 32px;
  font-size: 24px;
  color: var(--color-white);
  display: none;
}

/*home section*/
#home {
  padding: 40px;
  padding-top: 150px;
  text-align: center;
}
.home__avatar {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  border: 2px solid var(--color-light-white);
}
.home__title,
.home__description-en,
.home__description-ko {
  color: var(--color-white);
}
.home__contact {
  font-size: var(--font-regular);
  font-weight: var(--weight-regular);
  margin: 24px;
  padding: 8px 12px;
  border: 2px solid var(--color-light-white);
  border-radius: var(--size-border-radius);
  color: var(--color-white);
}

/*sections*/
.section {
  padding: 80px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
  margin-bottom: 80px;
  border: 15px solid var(--color-light-blue);
  border-radius: calc(var(--size-border-radius) * 10);
  background-color: var(--color-white);
}

/*about section*/
.about__majors {
  display: flex;
  justify-content: space-between;
  margin: 40px 0;
}
.major__icon {
  width: 170px;
  height: 170px;
  font-size: 70px;
  line-height: 170px;
  margin: auto;
  color: var(--color-dark-blue);
  border: 1px solid var(--color-dark-blue);
  border-radius: 50%;
  margin-bottom: 16px;
}
.major__icon i {
  transition: all var(--animation-duration) ease;
}
.major__icon img{
  width:80px;
  height:80px;
  border-radius: 50%;
  margin:45px 0;
  transition: all var(--animation-duration) ease;
}
.major__icon:hover i,
.major__icon:hover img {
  color: var(--color-light-blue);
  transform: rotate(360deg) scale(1.1);
}
.major__title,
.major__description {
  color: var(--color-dark-gray);
}
.major__description {
  font-size: var(--font-small);
}
.job {
  display: flex;
  align-items: center;
  justify-content: center;
}
.job__logo {
  width: 100px;
  height: 100px;
}
.job__name,
.job__period {
  color: var(--color-gray);
  font-size: var(--font-regular);
}
.job__period {
  font-size: var(--font-micro);
}
.about__etc {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  margin: 40px 0;
}
.about__certificates,
.about__languages {
  width: 300px;
}
.certificate,
.language {
  display: flex;
}
.certificate__logo,
.language__logo {
  width: 100px;
  height: 100px;
  padding: 16px;
  margin: auto;
  border: 1px solid var(--color-light-gray);
  border-radius: 50%;
  margin-bottom: 16px;
}
.certificate__logo:hover,
.language__logo:hover {
  transform: scale(1.1);
  cursor: pointer;
}
.certificate__description,
.language__description {
  text-align: left;
  margin-left: 16px;
}
.certificate__title,
.language__title {
  color: var(--color-dark-gray);
  font-size: var(--font-regular);
}
.certificate__acquisitionDay,
.language__score,
.language__acquisitionDay {
  color: var(--color-dark-gray);
  font-size: var(--font-small);
}

/*skills section*/
.skillset {
  display: flex;
  background-color: var(--color-light-gray);
  color: var(--color-light-white);
  margin: 20px 0;
}
.skillset__title {
  color: var(--color-white);
}
.skillset__left {
  flex-basis: 60%;
  background-color: var(--color-dark-gray);
  padding: 20px 40px;
}
.skill {
  margin-bottom: 32px;
}
.skill__description {
  display: flex;
  justify-content: space-between;
}
.skill__bar {
  background-color: var(--color-gray);
  width: 100%;
  height: 3px;
}
.skill__value {
  background-color: orange;
  height: 3px;
}
.skillset__right {
  flex-basis: 40%;
}
.tools {
  background-color: var(--color-gray);
}
.tools,
.etc {
  padding: 20px;
}

/*works*/
.work_categories {
  margin: 40px;
}
.category__btn {
  border: 1px solid var(--color-dark-white);
  border-radius: var(--size-border-radius);
  font-size: var(--font-regular);
  padding: 8px 48px;
  position: relative;
}
.category__btn:hover,
.category__btn.selected {
  background-color: var(--color-dark-blue);
  color: var(--color-white);
}
.category__btn:hover .category__count,
.category__btn.active .category__count {
  opacity: 1;
  top: 0;
}
.category__count {
  background-color: orange;
  border-radius: 50%;
  color: var(--color-white);
  width: 24px;
  height: 24px;
  display: inline-block;
  line-height: 24px;
  position: absolute;
  top: -20px;
  right: 16px;
  opacity: 0;
  transition: all var(--animation-duration);
}
.work__projects {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  opacity: 1;
  transition: all var(--animation-duration) ease-out;
}
.work__projects.anim-out {
  opacity: 0;
  transform: scale(0.96) translateY(40px);
}
.project {
  width: 280px;
  height: 250px;
  margin: 20px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--color-dark-white);
}
.project.invisible {
  display: none;
}
.project__img {
  max-width: 100%;
  max-height: 100%;
}
.project__description {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: var(--color-black);
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--animation-duration);
}
.project:hover .project__description {
  opacity: 0.8;
  transform: translateY(0);
}
.project__description h3 {
  color: orange;
}
.project__description h3:after {
  content: "";
  display: block;
  position: relative;
  left: 50%;
  margin-top: 8px;
  transform: translateX(-50%);
  width: 50px;
  height: 2px;
  background-color: var(--color-light-gray);
}
.testimonials {
  margin: 40px;
}
.testimonial {
  display: flex;
  flex-direction: row;
  margin: 32px 0;
}
.testimonial__avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
}
.testimonial__avatar:nth-child(odd) {
  margin-right: 40px;
}
.testimonial__avatar:nth-child(even) {
  margin-left: 40px;
}
.testimonial__speech-bubble {
  padding: 18px;
  background-color: var(--color-white);
  border-radius: var(--size-border-radius);
}
.testimonial__speech-bubble p {
  color: var(--color-light-gray);
}
.testimonial__speech-bubble a {
  color: var(--color-puple);
}

/*contact*/
#contact {
  padding: 24px 0;
  background-color: var(--color-dark-blue);
  text-align: center;
}
.contact__title,
.contact__email,
.contact__rights {
  color: var(--color-white);
}
.contact__title {
  margin: 32px 0;
}
.contact__links {
  font-size: var(--font-large);
  margin: 24px 0;
  transition: all var(--animation-duration) ease;
}
.contact__links i:hover {
  transform: scale(1.1);
  color: var(--color-light-blue);
}
/*scroll*/
.up__arrow {
  position: fixed;
  bottom: 100px;
  right: 100px;
  width: 70px;
  height: 70px;
  font-size: 50px;
  color: var(--color-white);
  background-color: var(--color-light-puple);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--animation-duration) ease-in-out;
}
.up__arrow.visible {
  pointer-events: auto;
  opacity: 1;
}
/*반응형 웹*/
@media screen and (max-width: 768px) {
  :root {
    --font-large: 30px;
    --font-medium: 18px;
    --font-regular: 16px;
    --font-small: 14px;
    --font-micro: 12px;
  }
  .navbar__toggle-btn {
    display: block;
    top: 32px;
    right: 16px;
  }
  #navbar {
    flex-direction: column;
    align-items: flex-start;
    background-color: var(--color-puple);
  }
  #navbar.navbar--dark {
    padding: 16px;
  }
  .navbar__menu {
    flex-direction: column;
    text-align: center;
    width: 100%;
    display: none;
  }
  .navbar__menu.open {
    display: block;
    z-index: 1;
  }
  .about__majors,
  .about__etc {
    flex-direction: column;
  }
  .about__majors {
    margin-top: 30px;
    margin-bottom: 0;
  }
  .major {
    margin-bottom: 30px;
  }
  .about__certificates,
  .about__languages {
    margin: auto;
  }
  .skillset {
    flex-direction: column;
  }
  .project {
    flex-grow: 1;
  }
  .category__btn {
    margin: 4px 0;
  }
  .section {
    padding: 16px;
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .testimonial {
    flex-direction: column;
    align-items: center;
  }
  .testimonial__avatar {
    width: 120px;
    height: 120px;
  }
  .testimonial__avatar:nth-child(odd),
  .testimonial__avatar:nth-child(even) {
    margin: 0;
    margin-bottom: 8px;
  }
  .testimonial__speech-bubble {
    order: 1;
  }
  .up__arrow {
    width: 50px;
    height: 50px;
    font-size: 30px;
    bottom: 16px;
    right: 16px;
  }
}