/* Header */

/* Navbar */
#navbar {
  position: fixed;
  width: 100%;
  padding: 16px;
  display: flex;
  justify-content: space-between;
  background-color: transparent;
  align-items: center;
  color: var(--color-white);
  transition: all var(--animation-duration) ease-in-out;
  z-index: 1;
}

#navbar.navbar--dark {
  padding: 8px;
  background-color: var(--color--light-purple);
}

.navbar__logo{
  font-size: var(--font-medium);
  font-weight: var(--weight--bold);
}

.navbar__menu {
  display: flex;
}

.navbar__menu__item {
  padding: 8px 12px;
  margin: 0px 4px;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--size-border-radius);
  transition: all var(--animation-duration) ease;
}

.navbar__menu__item:hover {
  border: 1px solid var(--color-white);
  background-color: var(--color--dark-violet);
}

.navbar__toggle-btn {
  position: absolute;
  top: 24px;
  right: 34px;
  font-size: var(--font-medium);
  color: var(--color-white);
  display: none;
}

/* Main */
section {
  padding: 50px;
  text-align: center;
}

.section__container {
  max-width: 1200px;
  margin: auto;
}

/* Home */
#home {
  background: url('imgs/home/bg4.png') center/cover no-repeat;
  padding-top: 120px;
}

.home__avatar {
  width: 250px;
  height: auto;
  border-radius: 50%;
  border: 1px solid var(--color-light-white);
}

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

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

.home__contact:hover {
  background-color: var(--color-blueviolet);
}
/* About */
.about__majors {
  margin: 80px 80px;
  display: flex;
  justify-content: space-between;
}

/* <i> = inline element
 .about__majors>i {
  width: 180px; x
  height: 180px; x
  background-color: yellow;
} */

.major__icon {
  margin-bottom: 16px;
  width: 180px;
  height: 180px;
  font-size: 100px;
  color: var(--color-blue);
  border: 2px solid var(--color-blue);
  border-radius: 50%;
}

.major__icon i {
  transition: all var(--animation-duration) ease;
}

/* hover 뒤에 i를 사용해서 icon 전체에 hover되도 i만 바뀌게 사용 / 앞에 i 를 사용하면 icon전체가 바뀐다 */
.major__icon:hover i {
  color: var(--color-orange);
  transform: rotate(360deg) scale(1.4);
}

.major__title,
.major__discription {
 color: var(--color-dark-grey);
}

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

.about__careers {
  display: flex;
  flex-direction: column;
}

.careers {
  text-align: left;
}

/* Skills */
#skills {
  background-color: var(--color-yellow);
}

.skillSet {
  margin: 20px 0;
  display: flex;
  background-color: var(--color--light-salmon);
  color: var(--color-light-white);
}

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

.skillSet__right {
  flex-basis: 40%;
  color:var(--color-dark-grey);
}

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

.skill{
  margin-bottom: 32px;
}

.skill__description {
  display: flex;
  justify-content: space-between;
  
}

.skill__bar {
  width: 100%;
  height: 3px;
  background-color: var(--color-white);
}

.skill__value {
  height: 3px;
  background-color: var(--color-purple);
}

.tools {
  background-color: var(--color-dark-pink);
}

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

/* Work */
.projects__nav {
  margin: 40px;
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
}

.project__btn {
  border: 1px solid var(--color-dark-white);
  border-radius: var(--size-border-radius);
  font-size: var(--font-ragular);
  padding: 8px 48px;
  position: relative;
}

.project__btn.active,
.project__btn:hover {
  background-color: var(--color--light-purple);
  color: var(--color-dark-white);
}

.project__btn.active .project__count,
.project__btn:hover .project__count {
  opacity: 1;
  top: 5px;
}

.project__count{
  display: inline-block;
  width: 24px;
  height: 24px;
  line-height: 24px;
  border: 1px solid var(--color-orange);
  border-radius: 50%;
  position: absolute;
  top: -20px;
  right: 16px;
  opacity: 0;
  transition: all var(--animation-duration) ease-in;
}

.projects__container {
  max-width: 1200px;
  margin: auto;
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  opacity: 1;
  transition: all var(--animation-duration) ease-in-out;
}

.projects__container.projects__container__animation {
  opacity: 0;
  transform: scale(0.98) translateY(40px);
}

.project {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 280px;
  height: 250px;
  margin: 2px;
 background-color: var(--color-light-white);
}

.project.invisible {
  display: none;
}


.project__item>img {
  max-width: 100%;
  max-height: 100%;
}

.project__discription {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: absolute;
  top:0;
  left:0;
  background-color: var(--color-black);
  color:var(--color--light-purple);
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: translateY(5px);
  transition: all var(--animation-duration) ease-in;
}

.project__discription::after {
  content: '';
  display: block;
  width: 100px;
  height: 2px;
  margin-top: 8px;
  background-color: var(--color-dark-white);
}

.project:hover .project__discription {
  opacity: 0.8;
  transform: translateY(0px);
}

/* Testimonials */
#testimonials {
  background-color: var(--color-light-white);
}

.testimonial {
  display: flex;
  margin: 32px;
  margin: 40px;
}

.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__speach-bubble {
  padding: 18px;
  background-color: var(--color-white);
  border-radius: var(--size-border-radius);
}

.testimonial__speach-bubble>p {
  color: var(--color-light-grey);
}

.testimonial__speach-bubble>p>a {
  color: var(--color--light-purple);
}

.up-btn{
  position: fixed;
  bottom: 18px;
  right: 10px;
  font-size: 24px;
  color: var(--color-purple);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3 ease-in;
}
.up-btn.visible{
  opacity: .2;
  pointer-events: auto;
}

.up-btn:hover {
  opacity: 1;
}

/* Footer */

/* Contect */
#contact {
  background-color: var(--color--light-purple);
}
.contact__title,
.contact__mail,
.contact__rights {
  color: var(--color-dark-white);
}

.contact__title {
  margin: 22px 0;
}

.contect__links {
  font-size: var(--font-large);
  margin: 24px 0;
}

.contect__links>i {
  transition: all var(--animation-duration) ease-in;
}

.contect__links>a>i:hover {
  transform:scale(1.2);
  color: var(--color--dark-violet);
}

/* below 768px screen width */
@media screen and (max-width: 768px) {

  :root {
    /* Font size */
   --font-large: 30px;
   --font-medium: 18px;
   --font-regular: 16px;
   --font-small: 14px;
   --font-micro: 12px;
  }
  .section {
    padding: 16px;
  }

  .navbar__toggle-btn {
    display: block;
    top: 16px;
    right: 16px;
    font-size: var(--font-medium);
  }

  #navbar {
    flex-direction: column;
    align-items: flex-start;
    background-color: var(--color--light-purple);
  }

  #navbar.open {
    opacity: .8;
  }

  #navbar.navbar--dark {
    padding: 16px;
  }
  .navbar__menu {
    flex-direction: column;
    text-align: center;
    width: 100%;
    display: none;
    
  }
  .navbar__menu.open {
    display: block;
  }


  .about__majors {
    flex-direction: column;
    align-items: center;
    margin-top: 30px;
    margin-bottom: 0px;

  }
  
  .major {
    margin-bottom: 38px;
  }

  .skillSet {
    flex-direction: column;
  }

  .project__btn {
    margin: 4px 0;
    width: 100%;
  }

  .project {
    flex-grow: 1;
  }

  .testimonial{
    display: flex;
    flex-direction: column;
    align-items: center;
  }

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

  .testimonial__avatar:nth-child(odd),
  .testimonial__avatar:nth-child(even) {
    margin: 0 0 8px 0;
  }
  
  .testimonial__speach-bubble {
    order: 1;
  }
}