@font-face {
  font-family: "Rubik";
  src: url("assets/fonts/Rubik-VariableFont_wght.ttf") format("truetype");
  font-style: normal;
}

@font-face {
  font-family: "Rubik";
  src: url("assets/fonts/Rubik-Italic-VariableFont_wght.ttf") format("truetype");
  font-style: italic;
}

:root {
  --light-text: #313e51;

  --dark-bg: #3b4d66;
  --light-bg: #f4f6fa;

  --light-selection-bg: #ffffff;
  --dark-selection-bg-and-light-small-text: #626c7f;

  --dark-small-text: #abc1e1;

  --purple: #a729f5;
  --green: #26d782;
  --red: #ee5454;

  --light-theme-desktop-bg: url("assets/images/pattern-background-desktop-light.svg");
  --dark-theme-desktop-bg: url("assets/images/pattern-background-desktop-dark.svg");

  --light-theme-tablet-bg: url("assets/images/pattern-background-tablet-light.svg");
  --dark-theme-tablet-bg: url("assets/images/pattern-background-tablet-dark.svg");

  --light-theme-mobile-bg: url("assets/images/pattern-background-mobile-light.svg");
  --dark-theme-mobile-bg: url("assets/images/pattern-background-mobile-dark.svg");

  --light-sun: url("assets/images/icon-sun-dark.svg");
  --dark-sun: url("assets/images/icon-sun-light.svg");

  --light-moon: url("assets/images/icon-moon-dark.svg");
  --dark-moon: url("assets/images/icon-moon-light.svg");
}

.light-theme {
  --bg-color: var(--light-bg);
  --bg-image: var(--light-theme-desktop-bg);
  --icon-sun: var(--light-sun);
  --icon-moon: var(--light-moon);
  --text-color: var(--light-text);
  --progress-bar: var(--light-selection-bg);
  --btn-opacity: 1;
  --btn-hover-opacity: 0.7;
  --small-text-color: var(--dark-selection-bg-and-light-small-text);
  --button-color: var(--light-selection-bg);
}

.dark-theme {
  --bg-color: var(--light-text);
  --bg-image: var(--dark-theme-desktop-bg);
  --icon-sun: var(--dark-sun);
  --icon-moon: var(--dark-moon);
  --text-color: var(--light-bg);
  --progress-bar: var(--dark-bg);
  --btn-opacity: 0.9;
  --btn-hover-opacity: 1;
  --small-text-color: var(--dark-small-text);
  --button-color: var(--dark-bg);
}

* {
  font-family: "Rubik";
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  background-color: var(--bg-color);
  background-image: var(--bg-image);
  background-size: cover;
  height: 100vh;
  width: 100vw;
  color: var(--text-color);
}

.container {
  width: 70%;
}

.container .header {
  display: flex;
  justify-content: space-between;
  margin-top: 5rem;
}

.container .header .quiz-category-container {
  display: flex;
  align-items: center;
}

.header .quiz-category-container .quiz-category {
  margin-right: 1rem;
}

.header .quiz-category-container .quiz-category-text {
  font-size: 1.5rem;
  font-weight: 500;
}

.header .theme-switch-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.theme-switch-wrapper .icon-sun .icon-sun-image,
.theme-switch-wrapper .moon-sun .icon-moon-image {
  max-width: 100%;
}

.header .theme-switch-wrapper .theme-switch {
  appearance: none;
  position: relative;
  cursor: pointer;
  width: 2.5rem;
  height: 1.4rem;
  border-radius: 0.8rem;
  background-color: var(--purple);
  outline: none;
  margin-inline: 0.5rem;
}

.header .theme-switch-wrapper .theme-switch::before {
  position: absolute;
  content: "";
  background-color: var(--light-selection-bg);
  height: 1rem;
  width: 1rem;
  top: 0.2rem;
  left: 0.2rem;
  border-radius: 50%;
  transition: transform 0.4s ease;
}

.header .theme-switch-wrapper .theme-switch:checked::before {
  transform: translateX(1.1rem);
}

.container .start-screen,
.container .game-screen {
  margin-top: 4rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.container .start-screen .welcome-text {
  margin-left: 3rem;
}

.start-screen .welcome-text .welcome-title {
  font-size: 3.2rem;
  font-weight: 300;
  line-height: 4.2rem;
}

.welcome-text .welcome-title .welcome-title__bold {
  font-weight: 500;
}

.start-screen .welcome-text .welcome-description,
.game-screen .question-section .question-number {
  color: var(--small-text-color);
  font-style: italic;
  margin-top: 2rem;
}

.container .start-screen .quiz-options,
.container .game-screen .answers-section {
  width: 50%;
  display: flex;
  flex-direction: column;
}

.start-screen .quiz-options .option,
.game-screen .answers-section .answer-option {
  cursor: pointer;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  background-color: var(--button-color);
  border-radius: 1rem;
  padding: 0.9rem;
}

.quiz-options .option .option-title {
  margin-left: 1.7rem;
}

.option-icon {
  border-radius: 0.5rem;
  padding: 0.5rem;
}

.option-title {
  font-size: 1.6rem;
}

.html-bg {
  background-color: #fff1e9;
}

.css-bg {
  background-color: #e0fdef;
}

.javascript-bg {
  background-color: #ebf0ff;
}

.accessibility-bg {
  background-color: #f6e7ff;
}

.container .game-screen .question-section {
  width: 38.5%;
  gap: 1rem;
}

.game-screen .question-section .question-number {
  margin-bottom: 1rem;
}

.game-screen .question-section .question-text {
  font-size: 1.5rem;
  font-weight: 500;
}

.game-screen .question-section .progress-bar-section {
  margin-top: 7rem;
}

.question-section .progress-bar-section .progress-bar {
  width: 100%;
  height: 0.5rem;
  background-color: var(--progress-bar);
  border-radius: 1rem;
  overflow: hidden;
  margin: 20px auto;
}

.progress-bar-section .progress-bar .progress {
  width: 70%;
  height: 100%;
  background-color: var(--purple);
  border-radius: 10px;
  transition: width 0.3s ease-in-out;
}

.game-screen .answers-section .answer-option {
  display: flex;
  justify-content: space-between;
}

.game-screen .answers-section .answer-option.active {
  outline: 0.2rem solid var(--purple);
}

.game-screen .answers-section .answer-option.correct {
  outline: 0.2rem solid var(--green);
}

.game-screen .answers-section .answer-option.wrong {
  outline: 0.2rem solid var(--red);
}

.answers-section .answer-option .answer-letter {
  height: 2.2rem;
  width: 2.2rem;
  border: none;
  border-radius: 0.4rem;
  margin-right: 1rem;
  color: var(--light-text);
  font-weight: 500;
  cursor: pointer;
}

.answers-section .answer-option:hover .answer-letter {
  background-color: #f6e7ff;
  color: var(--purple);
}

.answers-section .answer-option.active .answer-letter {
  background-color: var(--purple);
  color: var(--light-selection-bg);
}

.answers-section .answer-option.correct .answer-letter {
  background-color: var(--green);
  color: var(--light-selection-bg);
}

.answers-section .answer-option.wrong .answer-letter {
  background-color: var(--red);
  color: var(--light-selection-bg);
}

.answer-option .answer-letter-text-container .answer-text {
  font-weight: 500;
}

.game-screen .answers-section .btn-container {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.container .btn-container .btn {
  margin-top: 2rem;
  text-align: center;
  width: 100%;
  border: none;
  background-color: var(--purple);
  color: var(--light-selection-bg);
  opacity: var(--btn-opacity);
  border-radius: 1rem;
  padding: 0.9rem;
  opacity: 0.8;
  cursor: pointer;
}

.container .btn-container .btn:hover {
  opacity: var(--btn-hover-opacity);
}

.answers-section .btn-container .error-message {
  color: var(--red);
  display: none;
  align-items: center;
  align-self: center;
  justify-content: center;
  margin-top: 2rem;
}

.dark-theme .answers-section .btn-container .error-message {
  color: var(--light-selection-bg);
}

.container .end-screen .final-message {
  width: 100%;
  margin-top: 3rem;
  display: flex;
}

.container .end-screen .end-screen__title {
  font-size: 3rem;
  font-weight: 400;
  margin-right: 1rem;
}

.end-screen .end-screen__title .end-screen-title__bold {
  font-weight: 600;
}

.light-theme .end-screen .score-section {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.end-section-container {
  width: 50%;
}

.container .end-screen .score-section {
  background-color: var(--button-color);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  border-radius: 1rem;
}

.score-section .score-section-box {
  margin-top: 1rem;
  padding: 2rem;
}

.score-section .score-section-box .selected-quiz-title {
  display: flex;
  align-items: center;
  margin-left: 1rem;
  font-weight: 500;
}

.score-section-box .selected-quiz-title .selected-quiz-text {
  margin-left: 1rem;
  font-size: 1.5rem;
}

.score-result {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
}

.score-result .player-score {
  font-size: 6rem;
  font-weight: 600;
}

.total-question {
  color: var(--small-text-color);
}

.container .btn-container {
  margin-top: 2rem;
  display: flex;
  justify-content: flex-end;
  width: 100%;
}

.container .btn-container .replay-btn {
  cursor: pointer;
  color: var(--light-selection-bg);
  font-weight: 600;
  padding: 1.5rem;
  border-radius: 1rem;
  text-align: center;
  background-color: var(--purple);
  width: 100%;
  opacity: var(--btn-opacity);
}

.container .btn-container .replay-btn:hover {
  opacity: var(--btn-hover-opacity);
}

.game-screen .answers-section .submit-answer {
  display: flex;
  justify-content: center;
  align-items: center;
}

.game-screen .answers-section .next-question {
  display: flex;
  justify-content: center;
  align-items: center;
  display: none;
  margin-top: 2rem;
}

.error-message {
  display: none;
  color: red;
  font-size: 14px;
  margin-top: 10px;
}

@media (min-width: 37.5rem) and (max-width: 64rem) {
  .light-theme {
    --bg-image: var(--light-theme-tablet-bg);
  }

  .dark-theme {
    --bg-image: var(--dark-theme-tablet-bg);
  }

  .container {
    width: 85%;
  }

  .container .start-screen,
  .container .game-screen {
    flex-direction: column;
  }

  .container .start-screen .welcome-text {
    width: 60%;
    margin-left: 0.5rem;
  }

  .start-screen .welcome-text .welcome-description {
    margin-top: 0;
    margin-bottom: 1rem;
  }

  .container .start-screen .quiz-options {
    width: 100%;
  }

  .container .game-screen .question-section {
    display: block;
    width: 100%;
    margin-left: 0.5rem;
  }

  .game-screen .question-section .progress-bar-section {
    margin-top: 2.5rem;
  }

  .container .game-screen .answers-section {
    width: 100%;
  }

  .container .end-screen .final-message {
    display: flex;
    flex-direction: column;
  }

  .final-message .end-screen__title {
    width: 60%;
    margin-bottom: 3rem;
  }
  .final-message .end-section-container .score-section,
  .end-section-container {
    width: 100%;
  }
}

@media (max-width: 37.499rem) {
  .light-theme {
    --bg-image: var(--light-theme-mobile-bg);
  }

  .dark-theme {
    --bg-image: var(--dark-theme-mobile-bg);
  }

  .container {
    width: 85%;
  }

  .header .quiz-category-container .quiz-icon {
    padding: 6px;
  }

  .header .quiz-category-container .quiz-category-text {
    font-size: 1rem;
  }

  .container .start-screen,
  .container .game-screen {
    flex-direction: column;
  }

  .container .start-screen .welcome-text {
    width: 100%;
    margin-left: 0.5rem;
  }

  .start-screen .welcome-text .welcome-title {
    font-size: 2.5rem;
  }

  .start-screen .welcome-text .welcome-description {
    margin-top: 0;
    margin-bottom: 1rem;
  }

  .game-screen .question-section .progress-bar-section {
    margin-top: 2.5rem;
  }

  .container .start-screen .quiz-options,
  .container .game-screen .question-section,
  .container .game-screen .answers-section {
    width: 100%;
  }

  .container .end-screen .final-message {
    display: flex;
    flex-direction: column;
  }

  .end-screen .final-message .end-screen__title {
    width: 100%;
    margin-bottom: 3rem;
  }

  .end-screen .final-message .end-screen__title {
    font-size: 2rem;
  }

  .final-message .end-section-container .score-section,
  .end-section-container {
    width: 100%;
  }
}

.container .header .quiz-category-container {
  visibility: hidden;
}

.container .game-screen,
.container .end-screen {
  display: none;
}