* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.game-wrapper {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    padding: 30px;
    max-width: 1000px;
    width: 100%;
}

.game-header {
    text-align: center;
    margin-bottom: 25px;
}

.game-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 10px;
}

.game-subtitle {
    color: #718096;
    font-size: 1.1rem;
}

.game-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding: 20px;
    background: #f7fafc;
    border-radius: 15px;
    border: 2px solid #e2e8f0;
}

.score-section {
    text-align: center;
}

.player-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.score {
    font-size: 2.5rem;
    font-weight: 800;
    color: #2d3748;
}

.timer-section {
    text-align: center;
    padding: 15px 20px;
    background: #667eea;
    color: white;
    border-radius: 10px;
    min-width: 120px;
}

.timer-label {
    font-size: 0.8rem;
    opacity: 0.9;
    margin-bottom: 5px;
}

.timer {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Courier New', monospace;
}

.game-area {
    position: relative;
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas#pong {
    background: #1a202c;
    border: 3px solid #e2e8f0;
    border-radius: 15px;
    display: block;
    width: 100%;
    max-width: 800px;
    height: auto;
    cursor: none;
    margin: 0 auto;
}

.ai-chat {
    background: #f0f4f8;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 4px solid #667eea;
    min-height: 80px;
    display: flex;
    align-items: center;
}

.ai-avatar {
    width: 50px;
    height: 50px;
    background: #667eea;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.ai-message {
    flex: 1;
}

.ai-name {
    font-weight: 600;
    color: #667eea;
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.ai-text {
    color: #4a5568;
    line-height: 1.4;
    font-size: 0.95rem;
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: #f7fafc;
    border-radius: 15px;
    margin-bottom: 15px;
}

.control-info {
    color: #718096;
    font-size: 0.9rem;
}

.game-controls {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background: #cbd5e0;
}

.game-over {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.game-over-content {
    background: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.game-over h2 {
    color: #2d3748;
    margin-bottom: 20px;
    font-size: 2rem;
}

.final-score {
    font-size: 1.2rem;
    color: #718096;
    margin-bottom: 30px;
}

.winner-badge {
    display: inline-block;
    padding: 8px 16px;
    background: #48bb78;
    color: white;
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

.game-paused {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    display: none;
}

.footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
    color: #718096;
    font-size: 0.9rem;
}

.footer .creator {
    font-weight: 600;
    color: #667eea;
}

.footer .tagline {
    margin-top: 5px;
    font-style: italic;
}

@media (max-width: 768px) {
    .game-wrapper {
        padding: 20px;
    }
    
    .game-title {
        font-size: 2rem;
    }
    
    .game-status {
        flex-direction: column;
        gap: 15px;
    }
    
    .controls {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}