@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@300;400;500;600;700&display=swap');

:root {
  --primary-color: #FF9F1C;
 
  --secondary-color: #2EC4B6;
 
  --accent-color: #FFBF69;
  
  --bg-color: #CBF3F0;
 
  --text-color: #2B2D42;

  --white: #FFFFFF;
  --correct: #2EC4B6;
  --wrong: #E71D36;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Fredoka', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  font-size: 18px;
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

#app {
  width: 100%;
  max-width: 600px;
  
  background-color: var(--white);
  min-height: 100vh;
  padding: 20px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
}


header {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px dashed var(--secondary-color);
}

h1 {
  color: var(--primary-color);
  font-size: 2.5rem;
  text-shadow: 2px 2px 0px var(--text-color);
  margin-bottom: 10px;
}

h2 {
  color: var(--secondary-color);
  margin-bottom: 15px;
}


.screen {
  display: none;

  flex-direction: column;
  flex: 1;
  animation: fadeIn 0.5s ease;
}

.screen.active {
  display: flex;
}


.grade-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 20px;
}

.btn {
  border: none;
  border-radius: 15px;
  padding: 20px;
  font-size: 1.2rem;
  font-family: 'Fredoka', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  color: var(--white);
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80px;
  word-break: break-word;
  white-space: normal;
}

.btn:active {
  transform: scale(0.95);
}

.btn-grade {
  background-color: var(--secondary-color);
  box-shadow: 0 5px 0 #1b8a7f;
}

.btn-grade:hover {
  background-color: #25a094;
}

.btn-test {
  background-color: var(--primary-color);
  box-shadow: 0 5px 0 #d67d0a;
  margin-bottom: 15px;
  width: 100%;
}

.btn-back {
  background-color: #8D99AE;
  margin-bottom: 10px;
  align-self: flex-start;
  padding: 10px 20px;
  min-height: auto;
  font-size: 1rem;
  box-shadow: 0 4px 0 #5c677d;
}


.question-container {
  background-color: #f0f8ff;
  padding: 20px;
  border-radius: 15px;
  margin-bottom: 20px;
  border: 3px solid var(--secondary-color);
  text-align: center;
}

.question-text {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

.btn-option {
  background-color: var(--white);
  border: 3px solid var(--primary-color);
  color: var(--text-color);
  box-shadow: 0 4px 0 #e6e6e6;
  font-size: 1.1rem;
}

.btn-option:hover {
  background-color: #fff8f0;
}

.btn-option.correct {
  background-color: var(--correct);
  color: white;
  border-color: var(--correct);
  box-shadow: none;
}

.btn-option.wrong {
  background-color: var(--wrong);
  color: white;
  border-color: var(--wrong);
  box-shadow: none;
}


.result-card {
  text-align: center;
  padding: 30px;
  background-color: var(--white);
  border-radius: 20px;
  border: 4px solid var(--primary-color);
}

.score-text {
  font-size: 3rem;
  color: var(--primary-color);
  margin: 20px 0;
  font-weight: bold;
}

.feedback-text {
  font-size: 1.2rem;
  margin-bottom: 30px;
}


@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}


.progress-container {
  background-color: #e0e0e0;
  border-radius: 10px;
  height: 10px;
  width: 100%;
  margin-bottom: 20px;
  overflow: hidden;
}

.progress-bar {
  background-color: var(--secondary-color);
  height: 100%;
  width: 0%;
  transition: width 0.3s ease;
}


.info-menu {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 30px;
  border-top: 2px dashed #ddd;
  padding-top: 20px;
}

.btn-info {
  font-size: 1rem;
  padding: 15px;
  background-color: var(--accent-color);
  color: var(--text-color);
  box-shadow: 0 4px 0 #cc9a54;
  min-height: 60px;
}

.btn-info:hover {
  background-color: #ffca85;
}


.content-box {
  background-color: var(--white);
  padding: 20px;
  border-radius: 15px;
  text-align: left;
  font-size: 1.1rem;
  border: 2px solid #eee;
}

.content-box p {
  margin-bottom: 15px;
}

.content-box ul {
  list-style-position: inside;
  margin-bottom: 15px;
}

.content-box li {
  margin-bottom: 5px;
}


.faq-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background-color: var(--white);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #ddd;
}

.faq-question {
  padding: 15px;
  background-color: #f9f9f9;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question:hover {
  background-color: #f0f0f0;
}

.faq-answer {
  padding: 0 15px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  background-color: var(--white);
  color: #555;
  font-size: 1rem;
}

.faq-item.active .faq-answer {
  padding: 15px;
  max-height: 200px;
  border-top: 1px solid #eee;
}

.faq-item.active .faq-question {
  background-color: var(--secondary-color);
  color: white;
}


input,
textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 2px solid #ddd;
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  background-color: #f9f9f9;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--secondary-color);
  background-color: var(--white);
}

label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
  color: var(--text-color);
}


@media (max-width: 400px) {
  h1 {
    font-size: 2rem;
  }

  .btn {
    font-size: 1rem;
  }

  .question-text {
    font-size: 1.2rem;
  }
}