/* Global Reset */
/* App Container */
.app {
  background: rgba(0, 0, 0, 0.7);
  width: 90%;
  max-width: 600px;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Heading */
.app h1 {
  font-size: 32px;
  font-weight: 600;
  color: #dde4ee;
  margin-bottom: 20px;
  border-bottom: 2px solid #333;
  padding-bottom: 15px;
}

/* Quiz Section */
.quiz {
  padding: 20px 0;
  display: none;
}

.quiz h2 {
  font-size: 20px;
  font-weight: 600;
  color: #e90aa6;
  margin-bottom: 15px;
}

/* Button Styles */
.btn {
  background: rgba(0, 0, 0, 0.6);
  color: #eaeeec;
  font-size: 18px;
  font-weight: 500;
  width: 100%;
  border: 1px solid #222;
  margin: 10px 0;
  padding: 12px;
  border-radius: 5px;
  text-align: left;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}

.btn:hover:not([disabled]) {
  background: #333;
  color: #fff;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* Next Button */
#next-btn {
  background: #001e4d;
  color: #fff;
  font-weight: 600;
  width: 150px;
  border: none;
  padding: 12px;
  margin: 20px auto 0;
  border-radius: 5px;
  cursor: pointer;
  text-align: center;
  display: none;
  transition: background 0.3s;
}

#next-btn:hover {
  background: #003080;
}

/* Next Button */
#start-btn {
  background: #001e4d;
  color: #fff;
  font-weight: 600;
  width: 150px;
  border: none;
  padding: 12px;
  margin: 20px auto 0;
  border-radius: 5px;
  cursor: pointer;
  text-align: center;
  transition: background 0.3s;
}

#start-btn:hover {
  background: #003080;
}

/* FB Button */
#fb-btn {
  background: #001e4d;
  color: #fff;
  font-weight: 600;
  width: 150px;
  border: none;
  padding: 12px;
  margin: 20px auto 0;
  border-radius: 5px;
  cursor: pointer;
  text-align: center;
  transition: background 0.3s;
  display: none;
}

#start-btn:hover {
  background: #003080;
}

/* Feedback Classes */
.correcttt {
  background: #07f06c;
  color: #003080;
}

.incorrecttt {
  background: #ff9393;
  color: #003080;
}

/* Timer */
#timer {
  color: #dde4ee;
  font-size: 18px;
  margin-top: 10px;
  text-align: right;
  display: none;
}