/* ============================================
   气球射手 - 英文打字练习游戏 样式表
   ============================================ */

/* ========== 全局重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========== 页面主体：天空渐变背景 ========== */
body {
    font-family: 'Microsoft YaHei', sans-serif;
    background: linear-gradient(to bottom, #87CEEB, #E0F7FA);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 5px;
}

/* ========== 游戏主容器 ========== */
.game-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 1600px;
    height: 100vh;
}

/* ========== 顶部标题栏 ========== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 5px;
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 游戏标题样式 */
.game-title {
    color: #FF6B6B;
    font-size: 1.8em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

/* 用户信息显示区域 */
.user-info {
    font-size: 1.2em;
    color: #333;
}

/* ========== 主内容区域（游戏区+侧边栏） ========== */
.main-content {
    display: flex;
    gap: 10px;
    width: 100%;
    flex: 1;
    min-height: 0;
}

/* 游戏区域：包含Canvas、控制按钮、漏接指示器 */
.game-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    min-width: 0;
}

/* ========== 游戏左上角：当前用户本次得分显示 ========== */
.current-score-display {
    position: absolute;
    top: 15px;
    left: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 16px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

.current-score-display .score-label {
    font-size: 14px;
    color: #666;
    font-weight: bold;
}

.current-score-display .score-value {
    font-size: 28px;
    color: #FF6B6B;
    font-weight: bold;
}

/* ========== 漏接气球红叉指示器（右上角） ========== */
.missed-indicators {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

/* 单个红叉样式：默认隐藏，漏接时显示 */
.missed-x {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    color: #f44336;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(244, 67, 54, 0.3);
    opacity: 0;
    transform: scale(0);
    transition: all 0.3s ease;
}

/* 红叉显示动画 */
.missed-x.show {
    opacity: 1;
    transform: scale(1);
}

/* ========== 游戏画布 ========== */
#gameCanvas {
    background: linear-gradient(to bottom, #87CEEB, #E0F7FA);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: block;
    max-width: 100%;
    height: auto;
    flex: 1;
    width: 100%;
}

/* ========== 游戏控制区域 ========== */
.controls {
    display: flex;
    gap: 15px;
    padding: 10px 0;
    align-items: center;
    justify-content: center;
}

/* 隐藏输入框（仅用于捕获键盘输入） */
#wordInput {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

/* 当前输入显示（在Canvas上方显示用户正在输入的单词） */
.typing-display {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    padding: 10px 30px;
    border-radius: 25px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
    z-index: 10;
    font-size: 28px;
    font-weight: bold;
    color: #333;
    min-width: 200px;
    text-align: center;
    letter-spacing: 2px;
    transition: all 0.2s;
}

.typing-display.error {
    background: rgba(244, 67, 54, 0.9);
    color: #fff;
    animation: shake 0.3s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(-50%); }
    25% { transform: translateX(calc(-50% - 5px)); }
    75% { transform: translateX(calc(-50% + 5px)); }
}

/* 通用按钮样式 */
button {
    padding: 12px 20px;
    font-size: 1em;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: bold;
}

/* 射击按钮：绿色 */
#shootBtn {
    background: #4CAF50;
    color: white;
}

#shootBtn:hover {
    background: #45a049;
    transform: translateY(-2px);
}

/* 新游戏按钮：蓝色 */
#newGameBtn {
    background: #2196F3;
    color: white;
}

#newGameBtn:hover {
    background: #1976D2;
    transform: translateY(-2px);
}

/* 暂停按钮：橙色 */
#pauseBtn {
    background: #FF9800;
    color: white;
}

#pauseBtn:hover {
    background: #F57C00;
    transform: translateY(-2px);
}

/* 结束游戏按钮：红色 */
#endGameBtn {
    background: #f44336;
    color: white;
}

#endGameBtn:hover {
    background: #d32f2f;
    transform: translateY(-2px);
}

/* 操作提示文字 */
.hint {
    color: #666;
    font-style: italic;
    font-size: 0.9em;
    text-align: center;
}

/* ========== 底部控制区 ========== */
.bottom-controls {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 10px 0;
    gap: 8px;
}

/* ========== 右侧边栏 ========== */
.sidebar {
    width: 220px;
    min-width: 220px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ========== 底部控制区 ========== */
.bottom-controls {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 10px 0;
    gap: 8px;
    flex-shrink: 0;
}

/* ========== 排行榜面板 ========== */
.leaderboard {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    height: 100%;
}

.leaderboard h3 {
    color: #FF6B6B;
    margin-bottom: 15px;
    text-align: center;
    font-size: 1.5em;
}

.leaderboard-list {
    list-style: none;
}

/* 排行榜每一项 */
.leaderboard-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 10px;
    margin: 5px 0;
    background: #f5f5f5;
    border-radius: 5px;
    transition: background 0.3s;
}

.leaderboard-item:hover {
    background: #e0e0e0;
}

/* 当前登录用户高亮 */
.leaderboard-item.current-user {
    background: #FFE0B2;
    font-weight: bold;
}

.leaderboard-rank {
    color: #FF9800;
    font-weight: bold;
    min-width: 30px;
}

.leaderboard-name {
    flex: 1;
    margin: 0 10px;
    color: #333;
}

.leaderboard-score {
    color: #4CAF50;
    font-weight: bold;
}

/* ========== 游戏统计面板 ========== */
.stats {
    margin-top: 20px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.stats-item {
    display: flex;
    justify-content: space-between;
    margin: 8px 0;
    font-size: 1.1em;
}

.stats-label {
    color: #666;
}

.stats-value {
    color: #FF6B6B;
    font-weight: bold;
}

/* ========== 模态框（登录/注册/年级选择） ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 400px;
    text-align: center;
}

.modal-title {
    color: #FF6B6B;
    margin-bottom: 20px;
    font-size: 1.8em;
}

.form-group {
    margin-bottom: 15px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #333;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: #4CAF50;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.modal-btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.modal-btn-primary {
    background: #4CAF50;
    color: white;
}

.modal-btn-primary:hover {
    background: #45a049;
}

.modal-btn-secondary {
    background: #f5f5f5;
    color: #333;
}

.modal-btn-secondary:hover {
    background: #e0e0e0;
}

/* 错误提示文字 */
.error-message {
    color: #f44336;
    font-size: 0.9em;
    margin-top: 5px;
    display: none;
}

/* 切换用户按钮 */
.switch-user-btn {
    background: #9C27B0;
    color: white;
    margin-left: 10px;
}

.switch-user-btn:hover {
    background: #7B1FA2;
    transform: translateY(-2px);
}

/* ========== 年级选择按钮网格 ========== */
.grade-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin: 20px 0;
}

.grade-btn {
    padding: 15px 10px;
    border: 2px solid #ddd;
    border-radius: 8px;
    background: white;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: bold;
    color: #333;
}

.grade-btn:hover {
    border-color: #4CAF50;
    background: #E8F5E9;
    transform: translateY(-2px);
}

/* 已选年级高亮 */
.grade-btn.selected {
    border-color: #4CAF50;
    background: #4CAF50;
    color: white;
}

/* ========== 游戏结束覆盖层 ========== */
.game-over {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999;
    justify-content: center;
    align-items: center;
}

.game-over-content {
    background: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    max-width: 400px;
}

.game-over-title {
    color: #f44336;
    font-size: 2em;
    margin-bottom: 20px;
}

.game-over-stats {
    margin: 20px 0;
}

.game-over-stat {
    display: flex;
    justify-content: space-between;
    margin: 10px 0;
    font-size: 1.2em;
}

.game-over-buttons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.game-over-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1em;
}

.retry-btn {
    background: #4CAF50;
    color: white;
}

.quit-btn {
    background: #f44336;
    color: white;
}

/* ========== 响应式适配 ========== */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    
    .sidebar {
        min-width: 100%;
    }
    
    .header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .game-title {
        font-size: 2em;
    }
    
    .controls {
        flex-direction: column;
    }
    
    .input-group {
        width: 100%;
    }
    
    .grade-selector {
        grid-template-columns: repeat(2, 1fr);
    }
}