/* === Global Layout === */
body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #74ebd5 0%, #ACB6E5 100%);
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  color: #222;
  overflow-x: hidden;
}

/* === Main Container === */
.container {
  text-align: center;
  max-width: 800px;
  width: 90%;
  padding: 30px 25px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Titles === */
.page-title {
  font-size: 2rem;
  margin-bottom: 10px;
  color: #1a1a1a;
  text-shadow: 1px 2px 4px rgba(0, 0, 0, 0.2);
}

.intro-text {
  color: #333;
  font-size: 1rem;
  margin-bottom: 25px;
  line-height: 1.5;
}

/* === Runner Section === */
#runner-section h2 {
  color: #2c3e50;
  margin-bottom: 12px;
  font-size: 1.4rem;
}

/* === Stats === */
.stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 25px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 12px;
  padding: 8px 18px;
  font-weight: 600;
  margin-bottom: 15px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.stats p {
  margin: 0;
  color: #111;
}

/* === Game Canvas === */
#gameCanvas {
  width: 100%;
  max-width: 700px;
  height: auto;
  aspect-ratio: 7 / 3;
  border: 3px solid #007bff;
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  margin-bottom: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#gameCanvas:hover {
  transform: scale(1.02);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

/* === Buttons === */
.controls button,
.back-btn {
  background: linear-gradient(135deg, #007bff, #00bfff);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 12px 25px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 6px 14px rgba(0, 123, 255, 0.25);
  transition: all 0.3s ease;
}

.controls button:hover,
.back-btn:hover {
  background: linear-gradient(135deg, #0069d9, #0095ff);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 123, 255, 0.35);
}

/* === Popup Modal === */
#popup-modal {
  position: fixed;
  inset: 0;
  backdrop-filter: blur(8px);
  background: rgba(0, 0, 0, 0.45);
  display: none;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1000;
}

#popup-modal.visible {
  display: flex;
  opacity: 1;
}

#popup-content {
  background: rgba(255, 255, 255, 0.95);
  padding: 30px 25px;
  border-radius: 20px;
  text-align: center;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
  animation: fadeIn 0.4s ease;
}

#popup-content h3 {
  margin-top: 0;
  margin-bottom: 18px;
  color: #222;
  font-size: 1.3rem;
}

/* === Road Choice Buttons === */
#roads-container button {
  background: linear-gradient(135deg, #007bff, #00bfff);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px;
  margin: 8px 0;
  width: 100%;
  max-width: 350px;
  font-size: 0.95rem;
  box-shadow: 0 4px 10px rgba(0, 123, 255, 0.25);
  transition: all 0.3s ease;
}

#roads-container button:hover {
  background: linear-gradient(135deg, #0056b3, #007bff);
  transform: scale(1.03);
  box-shadow: 0 6px 14px rgba(0, 123, 255, 0.35);
}

/* === Continue Button === */
#continue-btn {
  background: linear-gradient(135deg, #28a745, #56d364);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 12px 25px;
  font-size: 1rem;
  margin-top: 20px;
  box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
  transition: all 0.3s ease;
}

#continue-btn:hover {
  background: linear-gradient(135deg, #218838, #44c85e);
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(40, 167, 69, 0.4);
}

/* === Game Result === */
#game-result {
  font-weight: 700;
  margin-top: 18px;
  font-size: 1.05rem;
  color: #222;
}

/* === Back Button === */
.back-link {
  margin-top: 25px;
}

.back-btn {
  background: linear-gradient(135deg, #6c757d, #868e96);
}

.back-btn:hover {
  background: linear-gradient(135deg, #5a6268, #737b83);
}

/* === Responsive Design === */
@media (max-width: 768px) {
  .container {
    padding: 20px 15px;
    width: 95%;
  }

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

  #gameCanvas {
    max-width: 100%;
    border-width: 2px;
  }

  .stats {
    gap: 15px;
    font-size: 0.9rem;
  }

  .controls button {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: 1.4rem;
  }

  .intro-text {
    font-size: 0.9rem;
  }

  #popup-content {
    padding: 20px;
  }

  #roads-container button {
    font-size: 0.9rem;
  }

  #continue-btn {
    font-size: 0.9rem;
  }
}