/* General */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    font-family: "Libre Baskerville", serif;
    box-sizing: border-box;
    color: white;
}

html {
  scroll-behavior: smooth;
}


html,
body {
  text-size-adjust: none;
  -webkit-text-size-adjust: none;
  -moz-text-size-adjust: none;
  -ms-text-size-adjust: none;
  width: 100%;
}

h1 {
  font-size: 1.6rem;
  padding-bottom: 2rem;
}

p {
  font-family: "Noto Sans KR", sans-serif;
  padding-bottom: 1rem;
  font-size: 1.1rem;
}

.italic {
  font-style: italic;
}

.bold {
  font-weight: bold;
}


/* Nav bar */

nav {
  width: 100%;
  position: fixed;
  background-color: #183781;
  top: 0;
  left: 0;
  z-index: 2;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

nav > ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
}

nav > ul a {
  display: block;
  padding: 2.5rem 1.2rem;
  min-width: 150px;
  text-decoration: none;
  color: white;
  font-size: 1.2rem;
  text-align: center;
}

nav > ul a:hover {
  background-color: #45567d;
}

.tutoring-logo {
  max-width: 140px;
  z-index: 2;
  margin: 1rem;
  align-self: flex-start;
}

@media (max-width: 1100px) {
  .tutoring-logo {
    max-width: none;
    width: 15vh;
    height: 8vh;
    padding: 1vh;
    margin: 0.5vh;
  }
}

.dropdown-content {
  display: none;
  position: absolute;
  z-index: 1;
  opacity: 0.9;
}

.dropdown-content ul {
  flex-direction: column;
  background-color: #183781;
  min-width: 100px;
  list-style-type: none;
}

.dropdown-content a {
  display: block;
  padding: 0.6rem;
  text-decoration: none;
  color: white;
  font-size: 1rem;
  text-align: center;
}

.dropdown:hover .dropdown-content {
  display: block;
}

@media (max-width: 1100px) {
  #web-menu {
    display: none;
  }
}

#mobile-menu {
  display: none;
}

@media (max-width: 1100px) {
  #mobile-menu {
    display: initial;
  }
}

/*Mobile Menu*/
/* Dropdown Button */
.dropbtn {
  color: #183781;
  margin: auto;
  border: none;
  cursor: pointer;
  width: 4.5vh;
  height: 4.5vh;
}

/* The container <div> - needed to position the dropdown content */
.mobile-dropdown {
  position: relative;
  display: inline-block;
}

/* Dropdown Content (Hidden by Default) */
.mobile-dropdown-content {
  display: none;
  position: absolute;
  background-color: #183781;
  opacity: 0.9;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
  top: 9vh;
  left: 0;
  width: 100%;
}

/* Links inside the dropdown */
.mobile-dropdown-content a {
  color: white;
  font-size: 1.2rem;
  padding: 1rem 0.5rem;
  text-decoration: none;
  display: block;
  width: 100%;
  text-align: center;
}

/* Change color of dropdown links on hover */
.mobile-dropdown-content a:hover {
  background-color: #45567d;
}

/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */
.show {
  display: block;
}

/* 1st section */

#welcome-section {
  display: flex;
  width: 100%;
  background: white;
  line-height: 1.5;
  padding-top: 12rem;
  padding-bottom: 5rem;
}

@media (max-width: 1100px) {
  #welcome-section {
    flex-wrap: wrap;
    padding-top: 12vh;
    padding: 12vh 2vw 4vh 2vw;
  }
}

#img-container {
  width: 45%;
  text-align: center;
}

@media (max-width: 1100px) {
  #img-container {
    width: 100%;
  }
}

#welcome-section img {
  max-width: 47.5%;
}

#description {
  width: 50%;
}

@media (max-width: 1100px) {
  #description {
    width: 90%;
    margin: auto;
    padding-top: 3rem;
  }
}

#description .text-container {
  width: 80%;
  margin: auto;
}

#welcome-section h1 {
  color: #3d3d3d;
  text-decoration: none;
  padding: 0;
}

#welcome-section p {
  color: black;
}

#welcome-section ol {
  line-height: 1.5;
  padding-bottom: 0.5rem;
}

#welcome-section li {
  color: black;
  font-size: 1.1rem;
  list-style-position: inside;
}

/* Carousel */

#slider {
  display: flex;
  align-items: center;
  padding: 2rem 0 3rem 0;
}

.slide {
  height: 0;
  width: 0;
  overflow: hidden;
  opacity: 0;
  transition: opacity 2s;
}

.showing {
  opacity: 1;
  height: auto;
  margin: auto;
  width: 80%;
}

.slider-button {
  cursor: pointer;
  color: white;
  font-weight: bold;
  width: 40px;
  height: 40px;
  text-align: center;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

@media (max-width: 1100px) {
  .slider-button {
    width: 5vw;
    height: 5vw;
  }
}

.button-left {
  left: -10px;
}
.button-right {
  right: -10px;
}

/* CV section */

#cv-section {
  background: linear-gradient(
    326deg,
    rgba(23, 100, 161, 1) 0%,
    rgba(27, 60, 139, 1) 100%
  );
  width: 100%;
  padding: 4rem 2.5rem;
  line-height: 1.5;
  display: flex;
  flex-wrap: wrap;
}

@media (max-width: 1100px) {
  #cv-section {
    padding: 5vh 2vw 3vh 2vw;
  }
}

#cv-section h2 {
  font-size: 1.1rem;
  padding-top: 1.4rem;
  padding-bottom: 1rem;
}

#cv-section h3 {
  font-size: 1rem;
  padding-top: 2rem;
  padding-bottom: 1rem;
}

#experience {
  width: 100%;
  padding: 2rem 10rem;
}

@media (max-width: 1100px) {
  #experience {
    width: 80%;
    margin: auto;
    padding: 0;
  }
}

#experience p {
  padding-bottom: 1.5rem;
}

.logo {
  max-width: 150px;
  height: 70px;
  object-fit: contain;
  background-color: white;
  border-radius: 5%;
  padding-top: 5rem;
  padding: 0.5rem;
  margin: 1rem;
  transition: transform 0.2s ease-out;
}

@media (max-width: 1100px) {
  .logo {
    width: 20vw;
    height: 10vw;
  }
}

@media (max-width: 600px) {
  .logo {
    width: 25vw;
    height: 13vw;
  }
}

.logo:hover {
  transform: scale(1.2);
}

#tutoring-sites-logos {
  width: 80%;
  margin: auto;
  text-align: center;
  align-items: center;
  justify-content: center;
  margin-top: 2rem;
}

@media (max-width: 1100px) {
  #tutoring-sites-logos {
    width: 100%;
  }
}

#cv-section table {
  padding: 1.5rem 4rem;
}

td {
  padding: 0.25rem;
  vertical-align: top;
}

th {
  padding: 0.25rem;
  padding-right: 1rem;
  vertical-align: top;
  text-align: left;
}

@media (max-width: 1100px) {
  #cv-section table {
    padding-left: 0rem;
    padding-right: 2rem;
  }

  th {
    padding: 0.5rem 20vw 0.5rem 0.5rem;
  }

  td {
    padding: 0.5rem;
  }
}

#education {
  width: 80%;
  margin: auto;
  margin-top: 2rem;
  margin-bottom: 3rem;
  padding: 3rem;
  background-color: rgba(161, 197, 207, 0.2);
  line-height: 1.5;
  border-radius: 1%;
}

@media (max-width: 1100px) {
  #education {
    width: 96%;
  }
}

#education h1 {
  padding-bottom: 1rem;
  padding-top: 1rem;
}

#education p {
  font-size: 1.1rem;
  padding-top: 1.4rem;
  font-family: "Libre Baskerville";
  line-height: 2;
}

#education ul {
  padding: 2rem 3rem;
}

@media (max-width: 1100px) {
  #education ul {
    padding: 0;
  }
}

#education li {
  font-size: 1.2rem;
  list-style-position: inside;
  line-height: 2.5;
}

@media (max-width: 1100px) {
  #education p {
    padding-left: 0rem;
  }
}

#education-grid {
  display: grid;
  grid-template-columns: 50% 50%;
  grid-template-rows: auto auto auto auto;
  grid-row-gap: 1rem;
  grid-column-gap: 2rem;
  padding: 2rem;
}

@media (max-width: 1100px) {
  #education-grid {
    grid-template-columns: 100%;
    grid-template-rows: repeat(8, auto);
    grid-row-gap: 0;
    padding: 2rem 0 0 0;
  }
}

.item2,
.item4,
.item6 {
  align-self: center;
}

.item2,
.item4 {
  max-width: 95%;
}

/* Interests Section */

#interests-section {
  width: 100%;
  background: white;
  line-height: 1.5;
  padding: 5rem 7rem;
  display: flex;
}

@media (max-width: 1100px) {
  #interests-section {
    flex-wrap: wrap;
    padding: 5vh 2vw 3vh 2vw;
  }
}

#interests-section h1 {
  color: black;
}

#interests-section p {
  font-size: 1rem;
  padding-bottom: 1.5rem;
  color: black;
}

#interests-section li {
  font-size: 1.1rem;
  color: black;
}

#interests-container {
  width: 70%;
  background-color: rgba(44, 102, 236, 0.15);
  list-style-position: inside;
  padding: 2rem;
  border-radius: 1%;
}

@media (max-width: 1100px) {
  #interests-container {
    width: 90%;
    margin: auto;
  }
}

#image-container {
  width: 20%;
  margin: auto;
}

@media (max-width: 1100px) {
  #image-container {
    width: 90%;
    margin: auto;
    text-align: center;
    padding-top: 2rem;
  }
}

#image-container img {
  max-width: 250px;
}

@media (max-width: 1100px) {
  #image-container img {
    max-width: none;
  }
}

/* Footer */

footer {
  width: 100%;
  background-color: #183781;
  display: flex;
  justify-content: space-evenly;
  color: white;
}

footer p {
  padding: 2rem;
  font-size: 1.2rem;
}

#year {
  font-family: "Noto Sans KR", sans-serif;
}