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

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --headingColor: #fffffe;
  --textColor: #b7c1ec;
  --buttonColor: #eebbc3;
  --buttonTextColor: #232946;
  --backgroundColor: #232946;
  --correctColor: #00ebc7;
  --wrongColor: #ff5470;
  --font: 'Nunito', sans-serif;
  --transition: all 0.3s linear;
  --radius: 2rem;
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --footerHeight: 80px;
}

body {
  background-color: var(--backgroundColor);
  font-family: var(--font);
  letter-spacing: 0.5rem;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--headingColor);
  text-align: center;
}

p {
  color: var(--textColor);
  text-align: center;
  letter-spacing: 0.125rem;
}

.main-paragraph {
  max-width: 400px;
  margin: 0 auto;
  margin-top: 1rem;
}

.main-container {
  max-width: 1170px;
  width: 80vw;
  margin: 0 auto;
}

.underline {
  width: 16rem;
  height: 0.25rem;
  background: var(--buttonColor);
  margin: 0 auto;
  margin-top: 1rem;
}

.hero {
  width: 100vw;
  min-height: calc(100vh - var(--footerHeight));
  display: grid;
  place-items: center;
  padding-top: 2rem;
  padding-bottom: 2rem;
}
.btn-main {
    display: inline-block;      
    text-decoration: none;       
    background-color: #ffc107;   
    color: #333;                 
    padding: 15px 30px;          
    border-radius: 50px;         
    font-weight: bold;
    font-size: 18px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    margin: 10px;
}

.btn-main:hover {
    transform: translateY(-3px); 
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
    background-color: #ffca2c;
}

.btn-secondary {
    padding: 15px 30px;
    border-radius: 50px;
    border: 2px solid #007bff;
    background: transparent;
    color: #007bff;
    font-weight: bold;
    font-size: 18px;
    cursor: pointer;
    margin: 10px;
}
.btn-secondary:hover {
    background-color: #007bff;
    color: white;
}
.btn-container {
  display: grid;
  place-items: center;
  row-gap: 1rem;
  padding: 1rem 0;
}

.btn {
  width: 240px;
  padding: 1rem 2rem;
  background-color: var(--buttonColor);
  border: transparent;
  color: var(--buttonTextColor);
  font-size: 1rem;
  font-weight: bold;
  letter-spacing: 0.075rem;
  transition: var(--transition);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

@media screen and (min-width: 576px) {
  .btn {
    width: 360px;
  }
}

.footer {
  height: var(--footerHeight);
  background-color: #111;
  display: grid;
  place-items: center;
}

.answer-text {
  opacity: 1;
  font-weight: bold;
}

.correct {
  opacity: 1;
  color: var(--correctColor);
}

.wrong {
  opacity: 1;
  color: var(--wrongColor);
}

.stats {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.stat {
  background-color: var(--buttonColor);
  padding: 1rem;
  margin-left: 1rem;
  margin-right: 1rem;
  margin-bottom: 1rem;
}

.stat p {
  color: var(--buttonTextColor);
  font-weight: bold;
  font-size: 1rem;
  letter-spacing: 0.125rem;
}

.stat .correct-count {
  font-size: 2rem;
}

.stat .wrong-count {
  font-size: 2rem;
}

/* sound */
.btn-sound {
  margin: 0 0.5rem;
  width: 3rem;
  padding: 0.5rem 0.5rem;
  background-color: var(--buttonColor);
  border: transparent;
  color: var(--buttonTextColor);
  border-radius: var(--radius);
  transition: var(--transition);
}

.btn-sound:hover {
  transform: scale(1.2);
}

.sound-container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2rem;
  padding-bottom: 2rem;
}

.sound-container p {
  margin-right: 0.5rem;
}

.btn-sound {
  margin-left: 0.5rem;
}