:root {
  --bg-color: #f1f8e9; /* 薄緑 */
  --text-main: #33691e;
  --panel-bg: #ffffff;
  --accent-color: #8bc34a;
  --btn-bg: #4caf50;
  --btn-hover: #388e3c;
  --btn-disabled: #a5d6a7;
  --danger-color: #f44336;
}

* {
  box-sizing: border-box;
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: 'M PLUS Rounded 1c', sans-serif;
  display: flex;
  flex-direction: column;
}

.screen {
  display: none;
  width: 100%;
  min-height: 100vh;
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  flex-direction: column;
  position: relative;
}

.screen.active {
  display: flex;
}

h1, h2, h3 {
  text-align: center;
  color: var(--text-main);
}

.status-bar {
  background: var(--panel-bg);
  padding: 15px;
  border-radius: 10px;
  border: 2px solid var(--accent-color);
  font-size: 1.2rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 15px;
  flex: 1;
  justify-content: center;
}

.btn {
  background: var(--btn-bg);
  color: #fff;
  border: 2px solid #fff;
  padding: 15px;
  font-size: 1.2rem;
  font-weight: bold;
  border-radius: 15px;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform 0.1s, background 0.2s;
}

.btn:active {
  transform: scale(0.95);
}

.btn:disabled {
  background: var(--btn-disabled);
  cursor: not-allowed;
}

.btn-battle { background: #e53935; }
.btn-gacha { background: #fb8c00; }
.btn-party { background: #1e88e5; }
.btn-book { background: #8e24aa; }
.btn-action { font-size: 1.1rem; padding: 10px; }

.back-link {
  text-align: center;
  color: #666;
  text-decoration: none;
  font-weight: bold;
  margin-top: 20px;
}

/* バトル画面 */
.battle-header {
  text-align: center;
  margin-bottom: 10px;
}

.battle-area {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  background: var(--panel-bg);
  border: 3px solid var(--accent-color);
  border-radius: 15px;
  padding: 15px;
  margin-bottom: 20px;
  flex: 1;
  position: relative;
}

.vs-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  font-weight: 900;
  color: #ff5722;
  text-shadow: 2px 2px 0 #fff;
}

.ally-side, .enemy-side {
  width: 45%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.team-emojis {
  font-size: 3.5rem;
  height: 100px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.ally-side .team-emojis { font-size: 2.5rem; flex-wrap: wrap; }

.stats-box {
  background: var(--bg-color);
  border: 2px solid var(--btn-bg);
  border-radius: 10px;
  padding: 10px;
  width: 100%;
  font-size: 0.9rem;
  font-weight: bold;
}

.enemy-stats {
  border-color: var(--danger-color);
}

.box-title {
  text-align: center;
  margin: 0 0 5px 0;
  border-bottom: 1px solid #ccc;
  padding-bottom: 5px;
}

.stats-box p {
  margin: 3px 0;
}

.message-box {
  background: #333;
  color: #fff;
  padding: 15px;
  border-radius: 10px;
  min-height: 80px;
  font-size: 1.1rem;
  font-weight: bold;
  margin-bottom: 20px;
  border: 3px solid #fff;
}

.command-box {
  display: flex;
  gap: 10px;
}
.command-box .btn { flex: 1; }

/* 編成・図鑑画面 */
.character-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  background: var(--panel-bg);
  padding: 15px;
  border-radius: 10px;
  border: 2px solid var(--accent-color);
  min-height: 100px;
  margin-bottom: 20px;
  overflow-y: auto;
}

.char-card {
  background: var(--bg-color);
  border: 2px solid #ccc;
  border-radius: 10px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  width: calc(33.3% - 7px);
}

.char-card.selected {
  border-color: var(--danger-color);
  background: #ffcdd2;
}

.char-emoji { font-size: 2rem; margin-bottom: 5px; }
.char-name { font-size: 0.8rem; font-weight: bold; margin-bottom: 5px; }
.char-stats { font-size: 0.75rem; color: #555; }

/* エフェクト */
.anim-shake {
  animation: shake 0.5s;
}

@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  50% { transform: translateX(10px); }
  75% { transform: translateX(-10px); }
  100% { transform: translateX(0); }
}

.anim-damage {
  color: red !important;
  font-weight: bold;
}

/* ガチャ画面 */
.gacha-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  flex: 1;
}

.gacha-btn-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel-bg);
  border: 2px solid var(--accent-color);
  border-radius: 10px;
  padding: 10px 15px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.gacha-info h3 {
  margin: 0 0 5px 0;
  text-align: left;
  font-size: 1.1rem;
}

.gacha-info p {
  margin: 0;
  font-size: 0.8rem;
  color: #666;
}

.gacha-pull-btn {
  background: var(--btn-bg);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 20px;
  font-weight: bold;
  cursor: pointer;
}

.gacha-pull-btn:disabled {
  background: #aaa;
  cursor: not-allowed;
}

.gacha-modal {
  display: none;
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
  z-index: 100;
  border-radius: 15px;
}

.gacha-modal-content {
  background: var(--bg-color);
  padding: 20px;
  border-radius: 15px;
  text-align: center;
  border: 4px solid var(--accent-color);
  width: 80%;
  box-shadow: 0 0 20px rgba(255,255,255,0.2);
}

.gacha-result-emoji {
  font-size: 5rem;
  margin: 20px 0;
}

.anim-bounce {
  animation: bounceGacha 1s infinite;
}

@keyframes bounceGacha {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}