/* ========== 全局样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #000;
    font-family: 'Press Start 2P', 'Courier New', monospace;
}

/* ========== 游戏容器 ========== */
#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

#gameCanvas {
    background: #000;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    max-width: 100%;
    max-height: 100%;
}

#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#ui-layer > * {
    pointer-events: auto;
}

/* ========== 像素字体效果 ========== */
.pixel-text {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    text-shadow:
        2px 2px 0 #000,
        -2px -2px 0 #000,
        2px -2px 0 #000,
        -2px 2px 0 #000;
    letter-spacing: 1px;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    #gameCanvas {
        width: 100%;
        height: 100%;
    }
}

@media (min-width: 769px) {
    #game-container {
        background: linear-gradient(135deg, #0f0f23 0%, #1a1a3e 50%, #2a1a4e 100%);
    }

    #game-container::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background:
            radial-gradient(circle at 20% 80%, rgba(120, 0, 255, 0.1) 0%, transparent 50%),
            radial-gradient(circle at 80% 20%, rgba(255, 0, 120, 0.1) 0%, transparent 50%);
        pointer-events: none;
    }
}

/* ========== 加载动画 ========== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

.blink {
    animation: blink 1s step-end infinite;
}

.shake {
    animation: shake 0.3s ease-in-out;
}

/* ========== 隐藏滚动条 ========== */
::-webkit-scrollbar {
    display: none;
}

* {
    -ms-overflow-style: none;
    scrollbar-width: none;
}