/* トレーニング共通スタイル */
.training-modal {
    position: fixed;
    top: 0; 
    left: 0;
    width: 100vw; 
    height: 100vh;
    background: rgba(0,0,0,0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.training-close {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 10001;
    font-size: 2.5em;
    background: rgba(0,0,0,0.7);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s, background 0.2s;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.training-close:hover {
    opacity: 1;
    background: rgba(255,0,0,0.6);
    border-color: rgba(255,255,255,0.6);
}

.training-content {
    background: #000;
    color: #fff;
    border-radius: 12px;
    width: 90vw; 
    height: 90vh;
    overflow: hidden;
    position: relative;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

#training-container {
    width: 100%;
    height: 100vh;
    background: #000;
    position: relative;
    overflow: hidden;
}

.screen {
    display: none;
    width: 100%; 
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.screen.active {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* 8bitゲーム風デザイン */
.game-title {
    font-family: 'Courier New', monospace;
    font-size: 4em;
    color: #00ff00;
    text-shadow: 
        2px 2px 0px #008800,
        0 0 10px #00ff00,
        0 0 20px #00ff00;
    animation: pulse 2s infinite;
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.high-score {
    font-family: 'Courier New', monospace;
    font-size: 1.2em;
    color: #ffff00;
    margin-bottom: 20px;
    text-shadow: 1px 1px 0px #888800;
}

#score-graph {
    border: 2px solid #333;
    margin-bottom: 30px;
    background: #111;
    display: none; /* デフォルトは非表示、履歴がある場合のみ表示 */
}

.start-message {
    font-family: 'Courier New', monospace;
    font-size: 1.1em;
    color: #ffffff;
    animation: blink 1.5s infinite;
    text-shadow: 1px 1px 0px #666;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

/* ゲーム画面UI */
.ui-panel {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    z-index: 100;
}

.time-display, .score-display {
    font-family: 'Courier New', monospace;
    font-size: 1.5em;
    color: #00ffff;
    text-shadow: 
        1px 1px 0px #006666,
        0 0 5px #00ffff;
    padding: 10px 20px;
    background: rgba(0,20,20,0.8);
    border: 2px solid #006666;
    border-radius: 8px;
}

#game-keyboard-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 50;
}

/* ゲームオーバー画面 */
.final-score {
    font-family: 'Courier New', monospace;
    font-size: 2.5em;
    color: #ff6666;
    text-shadow: 
        2px 2px 0px #660000,
        0 0 10px #ff6666;
    margin-bottom: 40px;
}

.gameover-actions {
    display: flex;
    gap: 30px;
}

.gameover-actions button {
    font-family: 'Courier New', monospace;
    font-size: 1.2em;
    padding: 15px 30px;
    background: #333;
    color: #fff;
    border: 2px solid #666;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-shadow: 1px 1px 0px #000;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.gameover-actions button:hover {
    background: #555;
    border-color: #888;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.4);
}

.gameover-actions button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* レスポンシブ対応 */
@media (max-width: 1280px) {
    .game-title {
        font-size: 3em;
    }
    
    .ui-panel {
        font-size: 0.9em;
    }
    
    .final-score {
        font-size: 2em;
    }
}