/* 打砖块游戏样式 */
.game-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    color: white;
}

.game-header {
    text-align: center;
    margin-bottom: 30px;
}

.header-content h1 {
    font-size: 2.5em;
    margin: 0 0 10px 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    background: linear-gradient(45deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-subtitle {
    font-size: 1.1em;
    opacity: 0.9;
    margin: 0 0 20px 0;
}

.score-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin: 20px 0;
}

.score-box {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 15px 20px;
    text-align: center;
    min-width: 120px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.score-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

.score-value {
    font-size: 1.8em;
    font-weight: bold;
    color: #FFD700;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.game-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.button {
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.button:active {
    transform: translateY(-1px);
}

.button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.button.secondary {
    background: linear-gradient(45deg, #A8A8A8, #6C6C6C);
}

.button.third {
    background: linear-gradient(45deg, #FFA726, #FF7043);
}

.button.large {
    padding: 15px 40px;
    font-size: 1.2em;
}

.game-board-container {
    position: relative;
    display: flex;
    justify-content: center;
    margin: 30px 0;
}

#game-canvas {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 100%;
    height: auto;
}

.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    z-index: 10;
}

.overlay-content {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    max-width: 400px;
    width: 90%;
}

.overlay-content h2 {
    font-size: 2em;
    margin: 0 0 20px 0;
    background: linear-gradient(45deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.overlay-instructions {
    margin: 20px 0;
    font-size: 0.9em;
    opacity: 0.9;
}

.overlay-instructions p {
    margin: 8px 0;
}

.overlay-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.final-score, .final-level {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 15px 0;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.final-score span:last-child, .final-level span:last-child {
    font-size: 1.5em;
    font-weight: bold;
    color: #FFD700;
}

.new-record {
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    margin: 15px 0;
    font-weight: bold;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.level-complete-info {
    margin: 20px 0;
}

.bonus-display {
    background: rgba(255, 215, 0, 0.2);
    border: 1px solid rgba(255, 215, 0, 0.5);
    border-radius: 10px;
    padding: 10px;
    margin: 10px 0;
    color: #FFD700;
    font-weight: bold;
}

.game-instructions {
    margin-top: 40px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.game-instructions h3 {
    text-align: center;
    font-size: 1.8em;
    margin: 0 0 25px 0;
    color: #FFD700;
}

.instructions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-bottom: 30px;
}

.instruction-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.instruction-item:hover {
    transform: translateY(-5px);
}

.instruction-icon {
    font-size: 2.5em;
    margin-bottom: 15px;
}

.instruction-text {
    font-size: 0.95em;
    line-height: 1.5;
}

.instruction-text strong {
    color: #FFD700;
    display: block;
    margin-bottom: 8px;
}

.game-tips {
    margin-top: 25px;
}

.game-tips h4 {
    font-size: 1.3em;
    margin: 0 0 15px 0;
    color: #FFD700;
    text-align: center;
}

.game-tips ul {
    list-style: none;
    padding: 0;
}

.game-tips li {
    background: rgba(255, 255, 255, 0.1);
    margin: 10px 0;
    padding: 12px 15px;
    border-radius: 8px;
    border-left: 4px solid #FFD700;
    transition: background 0.3s ease;
}

.game-tips li:hover {
    background: rgba(255, 255, 255, 0.15);
}

.game-tips li::before {
    content: "💡 ";
    margin-right: 8px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .game-container {
        padding: 15px;
        margin: 10px;
    }
    
    .header-content h1 {
        font-size: 2em;
    }
    
    .score-container {
        gap: 10px;
    }
    
    .score-box {
        min-width: 100px;
        padding: 10px 15px;
    }
    
    .score-value {
        font-size: 1.5em;
    }
    
    .game-controls {
        gap: 10px;
    }
    
    .button {
        padding: 10px 20px;
        font-size: 0.9em;
    }
    
    #game-canvas {
        width: 100%;
        height: auto;
    }
    
    .overlay-content {
        padding: 30px 20px;
    }
    
    .instructions-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .overlay-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .game-container {
        padding: 10px;
        margin: 5px;
    }
    
    .header-content h1 {
        font-size: 1.8em;
    }
    
    .score-container {
        flex-direction: column;
        align-items: center;
    }
    
    .overlay-content {
        padding: 20px 15px;
    }
    
    .overlay-content h2 {
        font-size: 1.5em;
    }
}