/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 2.5rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

/* 游戏控制区域 */
.game-controls {
    margin-bottom: 20px;
}

.difficulty-selector {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.difficulty-btn {
    padding: 8px 16px;
    background-color: #e0e0e0;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.difficulty-btn:hover {
    background-color: #d0d0d0;
}

.difficulty-btn.active {
    background-color: #3498db;
    color: white;
}

.custom-settings {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
    padding: 15px;
    background-color: #f0f0f0;
    border-radius: 8px;
}

.custom-settings.hidden {
    display: none;
}

.setting {
    display: flex;
    align-items: center;
    gap: 8px;
}

.setting label {
    font-weight: bold;
}

.setting input {
    width: 60px;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
    text-align: center;
}

.apply-btn {
    padding: 6px 12px;
    background-color: #2ecc71;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.apply-btn:hover {
    background-color: #27ae60;
}

/* 游戏信息区域 */
.game-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 10px 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-label {
    font-weight: bold;
    color: #555;
}

.info-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: #e74c3c;
    min-width: 40px;
    text-align: center;
}

.new-game-btn {
    padding: 8px 16px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.new-game-btn:hover {
    background-color: #2980b9;
}

/* 插旗按钮样式 */
#flag-mode {
    padding: 8px 16px;
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 0.3s ease;
}

#flag-mode:hover {
    background-color: #c0392b;
    transform: scale(1.05);
}

#flag-mode.active {
    background-color: #27ae60;
    box-shadow: 0 0 10px rgba(39, 174, 96, 0.5);
}

/* 游戏板区域 */
.game-board {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 2px;
    margin: 0 auto 30px;
    max-width: 500px;
    background-color: #bdc3c7;
    padding: 5px;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.cell {
    aspect-ratio: 1/1;
    background-color: #95a5a6;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
    border-radius: 2px;
}

.cell:hover {
    background-color: #7f8c8d;
}

.cell.revealed {
    background-color: #ecf0f1;
}

.cell.flagged {
    background-color: #95a5a6;
    position: relative;
}

.cell.flagged::after {
    content: '🚩';
    font-size: 1.2rem;
}

.cell.mine {
    background-color: #e74c3c;
}

.cell.mine::after {
    content: '💣';
    font-size: 1rem;
}

/* 数字颜色 */
.cell[data-number="1"] { color: #3498db; }
.cell[data-number="2"] { color: #2ecc71; }
.cell[data-number="3"] { color: #e74c3c; }
.cell[data-number="4"] { color: #9b59b6; }
.cell[data-number="5"] { color: #f39c12; }
.cell[data-number="6"] { color: #1abc9c; }
.cell[data-number="7"] { color: #34495e; }
.cell[data-number="8"] { color: #7f8c8d; }

/* 游戏消息 */
.game-message {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.game-message.hidden {
    display: none;
}

.message-content {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.message-content h2 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.message-content p {
    margin-bottom: 20px;
    color: #555;
}

.username-input-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

#username-input {
    padding: 10px;
    border: 2px solid #3498db;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
    outline: none;
    transition: border-color 0.3s ease;
}

#username-input:focus {
    border-color: #2980b9;
}

#random-username {
    background-color: #2ecc71;
    margin-bottom: 10px;
}

#random-username:hover {
    background-color: #27ae60;
}

.message-btn {
    padding: 10px 20px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.message-btn:hover {
    background-color: #2980b9;
}

/* 排行榜 */
.leaderboard-container {
    margin-top: 30px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.leaderboard-container h2 {
    text-align: center;
    margin-bottom: 15px;
    color: #2c3e50;
}

.leaderboard-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
    gap: 10px;
}

.tab-btn {
    padding: 8px 16px;
    background-color: #e0e0e0;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background-color: #d0d0d0;
}

.tab-btn.active {
    background-color: #3498db;
    color: white;
}

.leaderboard-content {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

table th, table td {
    padding: 10px;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

table th {
    background-color: #f2f2f2;
    font-weight: bold;
    color: #555;
}

table tr:nth-child(even) {
    background-color: #f9f9f9;
}

table tr:hover {
    background-color: #f1f1f1;
}

/* 响应式设计 */
@media (max-width: 600px) {
    .container {
        padding: 15px;
        margin: 10px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .game-info {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .new-game-btn {
        align-self: center;
        margin-top: 10px;
    }
    
    .game-board {
        gap: 1px;
    }
    
    .cell {
        font-size: 0.9rem;
    }
    
    table th, table td {
        padding: 8px 5px;
        font-size: 0.9rem;
    }
}