/* ホーム画面のスタイル */
#home-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

#home-screen.hidden {
  opacity: 0;
  transform: scale(0.95);
}

.home-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 30px;
  padding: 50px 40px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(76, 175, 80, 0.2);
  width: 500px;
  text-align: center;
}

.logo-container {
  margin-bottom: 20px;
}

.game-logo {
  max-width: 100%;
  max-height: 200px;
  height: auto;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

.home-buttons {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

.home-btn {
  padding: 18px 40px;
  font-size: 20px;
  font-weight: bold;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 60px;
  width: 100%;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.home-btn.primary {
  background: linear-gradient(145deg, #4caf50 0%, #45a049 100%);
  color: white;
}

.home-btn.primary:hover {
  background: linear-gradient(145deg, #66bb6a 0%, #4caf50 100%);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.home-btn.secondary {
  background: linear-gradient(145deg, #2196f3 0%, #1976d2 100%);
  color: white;
}

.home-btn.secondary:hover {
  background: linear-gradient(145deg, #42a5f5 0%, #2196f3 100%);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}