body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #1e1e2f;
  color: #ffffff;
  padding: 20px;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

h1, h2 {
  text-align: center;
  color: #ffffff;
}

.quiz-box {
  background: #2c2c3e;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  width: 100%;
  max-width: 600px;
}

.category-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.category {
  background-color: #3e64ff;
  color: white;
  border: none;
  padding: 15px 30px;
  font-size: 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.category:hover {
  background-color: #1e44cc;
}

.answers button {
  background: #44475a;
  color: white;
  border: none;
  padding: 12px;
  width: 100%;
  margin: 10px 0;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
  transition: background 0.2s;
}

.answers button:hover {
  background: #5a5c7c;
}

button {
  font-size: 16px;
  padding: 12px 20px;
  margin-top: 20px;
  border: none;
  background: #3e64ff;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #1e44cc;
}

#timer {
  text-align: right;
  font-weight: bold;
  font-size: 18px;
  margin-bottom: 20px;
  color: #ff5555;
}

#result {
  text-align: center;
  margin-top: 50px;
}

#start-screen {
  margin-top: 100px;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  min-height: 100vh;
  padding: 0 20px;
  box-sizing: border-box;
}

#start-screen,
#quiz-container,
#result {
  max-width: 600px;
  width: 100%;
}