/* Global styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
::selection {
  color: rgb(11, 0, 48);
  background: rgba(110, 188, 230, 0.675);
}

body {
  background-color: rgba(255, 255, 255, 0.603);
  font-family: "Lucida Sans", "Lucida Sans Regular", "Lucida Grande",
    "Lucida Sans Unicode", Geneva, Verdana, sans-serif;
  overflow-x: hidden;
}

/* Header styles */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  height: 12vh;
  width: 100%;
  padding: 10px;
  background-color: rgb(0, 52, 65, 1);
  color: #fff;
  z-index: 1000;
}

.logo {
  margin-left: 10px;
  margin-right: 10px;
}
.logo-img {
  height: 60px;
}

.vlabtitle {
  padding-left: 19px;
  left: 50%;
  text-align: center;
}
.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
  font-weight: bold;
  padding-right: 10px;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
}
.nav-menu a {
  margin-left: 15px;
  padding: 15px;
  text-decoration: none;
  font-weight: 400;
  border-radius: 3px;
  color: #ffffff;
}

header .nav-menu a:hover {
  background: rgba(111, 248, 248, 0.74);
  cursor: pointer;
}

.h1title {
  font-size: 90%;
  text-align: center;
  margin: 0;
  background-color: rgb(255, 255, 255);
  color: #000000;
  padding-top: 20px;
  padding-bottom: 10px;
  padding: auto;
  padding-bottom: 5px;
  width: 100%;
}

/* Navigation styles */
.pageview {
  display: grid;
  place-items: center;
  padding: 10px 0;
  position: sticky;
  flex-direction: column;
  background-color: #fff;
}

.pageview .navigation {
  display: flex;
  flex-wrap: wrap;
  font-size: 1rem;
  border-radius: 20px;
  background: rgb(0, 30, 37);
  margin: 40px 25px;
  padding-right: 10px;
  padding-left: 10px;
  justify-content: space-evenly;
  flex-flow: wrap;
  color: rgb(138, 139, 138);
  font-weight: bolder;
}

.pageview .navigation .link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  height: 100px;
  width: 110px;
  padding: 10px;
  border-radius: 20px;
  text-decoration: none;
  color: white;
  background-color: rgb(0, 30, 37);
  transition: background-color 0.7s ease;
  margin: 1rem;
  border: 2.5px solid rgb(215, 211, 211);
  box-shadow: 0 2px 2px 0 rgb(224, 224, 224);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.pageview .navigation .link:hover {
  background-color: rgba(7, 238, 238, 0.8);
  color: white;
}

.pageview .navigation .link img {
  height: 60px;
  margin-bottom: 10px;
}

.pageview .navigation .link span {
  font-size: 0.8rem;
}

/* Scroll behavior */
.scrolled .header,
.scrolled .pageview {
  background-color: #fff;
  color: #333;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

@media screen and (max-width: 840px) {
  .header {
    flex-direction: row;
    height: auto;
    text-align: center;
    padding: 5px;
  }

  .header .vlabtitle {
    margin-right: auto;

    font-size: 0.75rem;
  }
  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -250px;
    height: 100%;
    width: 200px;
    flex-direction: column;
    justify-content: center;
    background-color: rgba(4, 74, 74, 0.74);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    transition: right 0.4s ease;
  }

  .nav-menu a {
    margin: 10px 0;
    text-align: center;
  }

  .nav-menu .close-btn {
    display: block;
    align-self: flex-end;
    margin: 10px;
    font-size: 24px;
    cursor: pointer;
    font-weight: bold;
  }

  .nav-menu.show {
    right: 0;
  }
  .pageview .navigation {
    margin-top: 10px;
    padding: 5px;
  }

  .pageview .navigation .link {
    border-radius: 12px;
    padding-top: 10px;
    min-width: 58px;
    height: 72px;
    margin: 5px;
    border-width: 2px;
  }

  .pageview .navigation .link img {
    height: 35px;
  }

  .pageview .navigation .link span {
    font-size: 0.7rem;
  }
  .practical {
    margin-left: 0px;
    margin-right: 0px;
    padding: 5px;
    font-size: smaller;
  }
  .container {
    padding: 10px;
    margin: 0;
    text-align: center;
  }
  .container.centered-content {
    padding: 10px;
    margin: 0;
    text-align: center;
    width: 600px;

    overflow: hidden;
  }

  #practice {
    overflow-x: auto;
  }

  .code-content {
    overflow-x: scroll;
    width: 700px;
  }
  #code.container {
    width: 640px;
  }
  .desc1 {
    padding: 10px;
  }
  .stepsP {
    padding-left: 10px;
  }
  #lsEx,
  #bsEx {
    width: 60%;
    height: auto;
  }
  .choices {
    display: grid;
    place-items: center;
    justify-content: space-between;
  }

  .choice {
    flex: 0 0 calc(25% - 10px);
  }

  .copy-button {
    position: absolute;
    padding-right: 500px;
  }
  .ref-list li span,
  .tools-list li span {
    font-size: 14px;
  }
}

@media (min-width: 840px) {
  .nav-menu .close-btn {
    display: none;
  }
}

/* Practical section */
.practical {
  padding: 15px;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  max-width: 1500px;
  margin-left: 0px;
  margin-right: 0px;
}

.practical .container {
  flex: 0 0 calc(33.33% - 20px);
  margin: 20px;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  background-color: #fff;
  text-align: justify;
}

.practical .centered-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.practical .centered-content .title {
  text-align: left;
}

.container.centered-content {
  border: 1px solid #ccc;
  border-radius: 10px;
  margin: 5px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  background-color: #fff;
}

.practical .container .title {
  font-size: 24px;
  font-weight: bold;
  color: #333;
  text-align: center;
  margin-bottom: 20px;
  padding-top: 10px;
}

.practical .container .content {
  font-size: 1rem;
}

.practical .container p {
  margin-bottom: 10px;
  font-size: 18px;
}

.practical .container ol {
  margin-left: 20px;
}

.practical .container li {
  margin-bottom: 5px;
}

.copy-button {
  background-color: #256fd0;
  color: #ffffff;
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  margin-left: 10px;
  transition: background-color 0.3s;
}

.copy-button:hover {
  background-color: #007bff;
}

.switch-container {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  padding: 5px;
}

input[type="radio"] {
  display: none;
}

.switch-container label {
  cursor: pointer;
  padding: 10px 20px;
  background-color: #8227f9;
  color: #fff;
  border-radius: 5px;
  margin: 0 10px;
}

input[type="radio"]:checked + label {
  background-color: #27ebf9;
  display: block;
  border: solid greenyellow;
}

.code-blocks {
  display: flex;
  align-items: center;
  justify-content: center;
}

.code-block {
  display: none;
}

.code-block.active {
  display: block;
}

#lsEx,
#bsEx {
  width: 400px;
  height: auto;
}
.your-turn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  padding: 30px;
  border: 1px solid #ddd;
  width: 100%;
  max-width: 700px;
  border-radius: 12px;
  background-color: #ffffff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s ease;
}

.your-turn:hover {
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

#labyt {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 25px;
  color: #333;
  text-align: center;
}

.your-turn label {
  font-weight: bold;
  display: block;
  margin-top: 15px;
  font-size: 1.1rem;
  color: #555;
}

#arrayInput,
#targetInput {
  width: 100%;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1.1rem;
  margin-top: 15px;
  transition: border-color 0.3s ease;
}

#arrayInput:focus,
#targetInput:focus {
  border-color: #007bff;
  outline: none;
}

.your-turn label,
#arrayInput,
#targetInput,
.sbt {
  width: 100%;
  max-width: 350px;
}

.sbt {
  margin-top: 20px;
  padding: 15px;
  font-size: 1.1rem;
  font-weight: bold;
  color: #fff;
  background-color: #007bff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.sbt:hover {
  background-color: #0056b3;
}

.sbt:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.3);
}

.array-container {
  display: flex;
  flex-wrap: wrap;
}

.array-element {
  padding: 10px;
  margin: 5px;
  border: 1px solid #000;
  text-align: center;
  border-radius: 5px;
}
.unchecked {
  background-color: #fff;
}

.checked {
  background-color: #ffeb3b; 
}

.uniterated {
  background-color: #e0e0e0; 
}

.found {
  background-color: #2f9afe; 
  color: rgb(255, 255, 255);
}
.foundg {
  color: green;
}

.not-found {
  color: red;
}
.blink {
  animation: blinker 0.5s linear infinite;
}

@keyframes blinker {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

#resultsContainer {
  margin-top: 20px;
  font-size: 1rem;
}

.desc1 {
  text-align: justify;
  margin-top: 20px;
  margin-bottom: 20px;
  max-width: 100%;
  height: 50%;
  margin: 0 auto;
}
.stepsP {
  display: flex;
  flex-direction: column;
  padding-left: 20px;
}

.anime {
  margin: 0 auto;
  margin-left: 10%;
}

.anime {
  width: 480px;
  aspect-ratio: 3/1;
}

#submit {
  font-size: 1rem;
  padding: 4px 4px 4px 4px;
  margin: 10px 10px 10px 200px;
}

#searchSteps {
  margin: 10px 10px 10px 200px;
}

/* Quiz styles */
.box {
  margin: 0 auto;
  padding: 20px;
  border: 1px solid #ccc;
  background-color: #f7f7f7;
  text-align: left;
}

h2 {
  font-size: 24px;
  color: rgb(0, 0, 0);
}

h4 {
  font-size: 14px;
  color: #777;
}

#question {
  font-size: 18px;
  margin-left: 5px;
  margin-top: 20px;
}

.choices {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-top: 20px;
}

.choices .choice {
  width: 500px;
  margin: 10px 0;
  padding: 10px;
  border: 1px solid rgb(12, 12, 12);
  border-radius: 6px;
  background-color: rgb(255, 255, 255);
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
  overflow-wrap: break-word;
}

.choices .choice:hover {
  background-color: rgb(46, 132, 245);
  color: #fff;
}

.codes button,
#next-btn {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #007bff;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.codes button:hover,
#next-btn:hover,
#searchbt:hover {
  background-color: #6725d0;
}

.stepsP {
  list-style: none;
  padding-left: 0;
}

.stepsP li {
  margin-bottom: 10px;
  font-size: 16px;
  line-height: 1.5;
  color: #333;
}

.stepsP span {
  display: block;
}

.copy-button {
  transition: background-color 0.3s, color 0.3s;
}

.copy-button:hover {
  background-color: #1a2230;
}

.choices {
  margin-top: 30px;
}

#next-btn {
  margin-top: 30px;
}
.code-block {
  position: relative;
  background-color: #f7f7f7;
  border-radius: 5px;
  border: 1px solid #ddd;
  margin-bottom: 20px;
  overflow: hidden;
}

.code-content {
  position: relative;
  min-width: 1080px;
}

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 5px 10px;
  background-color: #464646;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.copy-button.copied {
  background-color: #171717;
  color: white;
}

.code-content:hover .copy-button {
  display: block;
}

.copy-button {
  display: none;
}

.language-cpp,
.language-python {
  padding: 20px;
  margin: 0;
  font-size: 12px;
  white-space: pre-wrap;
}
/* Reference */
.references-list {
  list-style-type: none;
  padding: 0;
}

.references-list li {
  margin-bottom: 10px;
}

.references-list span {
  display: block;
  padding: 10px;
  background-color: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 4px;
}

ul,
ol {
  padding-left: 0px;
  margin: 10px 0;
}

li {
  margin-bottom: 10px;
}

.steps-list ol {
  margin-left: 10px;
}

.ref-list li,
.tools-list li {
  list-style-type: none;
  background-color: #fff;
  border: 1px solid #ddd;
  border-radius: 5px;
  padding: 10px;
  transition: background-color 0.3s ease;
}

.ref-list li:hover,
.tools-list li:hover {
  background-color: #f1f1f1;
}

.ref-list li span,
.tools-list li span {
  font-size: 16px;
  color: #333;
}

a {
  text-decoration: none;
}

/* Tile control  */
#aim,
#theory,
#procedure,
#code,
#result,
#quiz,
#practice,
#references,
#tnt {
  display: none;
}
#aim {
  display: block;
}

/* Adjustments */
@media screen and (max-width: 420px) {
  .container {
    margin: 0 auto;
  }
  .practical {
    margin-left: 0px;
    margin-right: 0px;
    padding: 5px;
    font-size: smaller;
  }
  .container {
    padding: 5px;
    margin: 0;
  }
  #lsEx,
  #bsEx {
    width: 60%;
    height: auto;
    margin-left: -20px;
  }
  .your-turn {
    width: 320px;
    margin: 5px;
  }
  .container.centered-content {
    padding: 5px;
    margin: 0;
    text-align: left;
    width: 340px;
    max-width: auto;
  }
  .choices {
    justify-content: space-between;
  }

  .choices .choice {
    width: 300px;
    margin-left: 10px;
  }
  .centered-content.your-turn {
    width: 300px;
  }
  .code-block {
    overflow: scroll;
    width: 320px;
  }
  #code.container {
    width: 330px;
  }
  #practice .stepsP li {
    width: 220px;
  }
}