body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}
#game-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    width: 90%;
    max-width: 1200px;
}
#game-info {
    width: 20%;
}
#minesweeper-container {
    width: 75%;
}
#minesweeper {
    display: inline-grid;
    gap: 1px;
    background-color: #bdbdbd;
    border: 3px solid #7b7b7b;
}
.cell {
    width: 30px;
    height: 30px;
    background-color: #c0c0c0;
    border: 1px solid #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}
.revealed {
    background-color: #e0e0e0;
}
.mine {
    background-color: #ff0000;
}
.flagged {
    background-color: #ffd700;
}
button, select {
    margin-top: 10px;
    padding: 5px 10px;
    font-size: 16px;
}
/* 主題樣式 */
.night-mode {
    background-color: #222;
    color: #fff;
}
.night-mode .cell {
    background-color: #444;
    border-color: #666;
}
.night-mode .revealed {
    background-color: #333;
}
.colorful .cell {
    background-color: #ff9999;
    border-color: #ff6666;
}
.colorful .revealed {
    background-color: #99ff99;
}
@keyframes reveal {
    from { transform: scale(0.1); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}
@keyframes flag {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@keyframes explode {
    0% { transform: scale(1); }
    50% { transform: scale(1.5); }
    100% { transform: scale(1); }
}
.reveal-animation {
    animation: reveal 0.3s ease-out;
}
.flag-animation {
    animation: flag 0.5s ease-out;
}
.explode-animation {
    animation: explode 0.5s ease-out;
}