/* ==================== 游戏页面样式 ==================== */

#gameWrapper {
    position: relative;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 70px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#gameCanvas {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 0 40px rgba(0,0,0,0.5);
}

/* ==================== 覆盖层通用 ==================== */

#menuOverlay, #gameoverOverlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    background: rgba(0, 0, 0, 0.55);
    transition: opacity 0.3s;
}

#menuOverlay {
    background-image: url('/games/easysurvivor/img/menu.png');
    background-size: cover;
    background-position: center;
}

#gameoverOverlay {
    background: rgba(0, 0, 0, 0.65);
}

.hidden {
    display: none !important;
}

/* ==================== 菜单内容 ==================== */

.menu-content {
    text-align: center;
    background: rgba(15, 15, 35, 0.85);
    padding: 60px 80px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
}

.game-title {
    font-size: 48px;
    font-weight: bold;
    color: #FFD700;
    margin-bottom: 12px;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
    letter-spacing: 6px;
}

.game-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
    letter-spacing: 2px;
}

/* ==================== 游戏结束面板 ==================== */

.gameover-panel {
    text-align: center;
    background: rgba(15, 15, 30, 0.92);
    padding: 50px 80px;
    border-radius: 16px;
    border: 1px solid rgba(100, 100, 130, 0.4);
    backdrop-filter: blur(8px);
}

.gameover-title {
    font-size: 48px;
    font-weight: bold;
    color: #FF3232;
    margin-bottom: 20px;
    letter-spacing: 6px;
}

.gameover-info {
    font-size: 24px;
    color: #FFD700;
    margin-bottom: 40px;
}

.gameover-info span {
    font-weight: bold;
    color: #FFF;
}

/* ==================== 按钮 ==================== */

.game-btn {
    display: inline-block;
    padding: 14px 48px;
    margin: 10px 16px;
    font-size: 20px;
    font-weight: bold;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    letter-spacing: 4px;
    transition: transform 0.15s, box-shadow 0.15s;
}

.game-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.game-btn:active {
    transform: scale(0.97);
}

.btn-start {
    background: linear-gradient(135deg, #4CAF50, #2E7D32);
    color: #FFF;
}

.btn-quit {
    background: linear-gradient(135deg, #8D6E63, #5D4037);
    color: #FFF;
}

/* ==================== 响应式 ==================== */

@media (max-width: 900px) {
    .menu-content, .gameover-panel {
        padding: 30px 40px;
    }
    .game-title, .gameover-title {
        font-size: 32px;
        letter-spacing: 3px;
    }
    .game-subtitle {
        font-size: 14px;
    }
    .gameover-info {
        font-size: 18px;
    }
    .game-btn {
        padding: 10px 32px;
        font-size: 16px;
        letter-spacing: 2px;
    }
}