body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f0f0f0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
}

.game-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.timer-controls, .elo-controls, .color-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.color-options {
    display: flex;
    align-items: center;
    gap: 5px;
}

input[type="number"] {
    width: 60px;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

button:hover {
    background-color: #45a049;
}

.game-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
}

.player-stats, .computer-stats {
    text-align: center;
    padding: 10px;
    background-color: #f8f8f8;
    border-radius: 4px;
    min-width: 150px;
}

.chess-board {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.timer-display {
    text-align: center;
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    color: #333;
}

/* Chess board customization */
.board {
    width: 100% !important;
    max-width: 600px !important;
    margin: 0 auto !important;
}

.square-55d63 {
    background-color: #b58863 !important;
}

.square-55d63.white-1e1d7 {
    background-color: #f0d9b5 !important;
}

.game-end-banner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 20px 40px;
    border-radius: 10px;
    font-size: 24px;
    font-weight: bold;
    z-index: 1000;
    display: none;
}