header {
  background: #1f1f1f;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-link {
  text-decoration: none;
}

.logo-link:hover {
  text-decoration: none;
}

.logo {
  font-family: "Cinzel", serif;
  font-size: 28px;
  color: #ffffff;
  font-weight: 600;
  cursor: pointer;
}

.login-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, #8B0000, #A52A2A);
  border-radius: 8px;
  cursor: pointer;
  color: #fff;
  border: none;
  font-weight: 600;
  font-size: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.login-btn:hover {
  background: linear-gradient(135deg, #A52A2A, #8B0000);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.login-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.login-btn i { margin-right: 6px; }

.tooltip {
  position: fixed;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 10px;
  border-radius: 4px;
  font-size: 14px;
  max-width: 300px;
  z-index: 1000;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.back-to-game-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, #2E8B57, #3CB371);
  border-radius: 8px;
  cursor: pointer;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.back-to-game-btn:hover {
  background: linear-gradient(135deg, #3CB371, #2E8B57);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.back-to-game-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}