/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 50%, #0a0a1a 100%);
    color: #ffffff;
    overflow: hidden;
    height: 100vh;
}

/* 游戏容器 */
#game-container {
    width: 100vw;
    height: 100vh;
    position: relative;
}

/* 屏幕样式 */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 50%, #0a0a1a 100%);
}

.hidden {
    display: none !important;
}

/* 加载界面 */
#loading-screen {
    background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 50%, #0a0a1a 100%);
}

.loading-content {
    text-align: center;
    padding: 2rem;
}

.loading-content h1 {
    font-size: 3rem;
    margin-bottom: 2rem;
    background: linear-gradient(45deg, #4a8ac8, #8a4ac8, #c84a8a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 10px #4a8ac8, 0 0 20px #4a8ac8, 0 0 30px #4a8ac8;
    }
    to {
        text-shadow: 0 0 20px #8a4ac8, 0 0 30px #8a4ac8, 0 0 40px #8a4ac8;
    }
}

.loading-bar {
    width: 300px;
    height: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin: 2rem auto;
    overflow: hidden;
    border: 2px solid #4a8ac8;
}

.loading-progress {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #4a8ac8, #8a4ac8);
    border-radius: 8px;
    animation: loading 3s ease-in-out infinite;
}

@keyframes loading {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* 主菜单 */
#main-menu {
    background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 50%, #0a0a1a 100%);
}

.menu-content {
    text-align: center;
    padding: 2rem;
}

.menu-content h1 {
    font-size: 4rem;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, #4a8ac8, #8a4ac8, #c84a8a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(74, 138, 200, 0.5);
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.menu-btn {
    padding: 1rem 2rem;
    font-size: 1.2rem;
    background: linear-gradient(45deg, #4a8ac8, #8a4ac8);
    border: none;
    border-radius: 10px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 200px;
    box-shadow: 0 4px 15px rgba(74, 138, 200, 0.3);
}

.menu-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 138, 200, 0.5);
    background: linear-gradient(45deg, #5a9ad8, #9a5ad8);
}

.menu-btn:active {
    transform: translateY(0);
}

/* 游戏主界面 */
#game-screen {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* 状态栏 */
#status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(0, 0, 0, 0.8);
    border-bottom: 2px solid #4a8ac8;
    backdrop-filter: blur(10px);
}

.player-info, .resources {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
}

.player-info span, .resources span {
    padding: 0.5rem 1rem;
    background: rgba(74, 138, 200, 0.2);
    border-radius: 5px;
    border: 1px solid #4a8ac8;
}

/* 主要内容区域 */
#main-content {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 1rem;
}

/* 底部导航栏 */
#navigation {
    display: flex;
    justify-content: space-around;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.8);
    border-top: 2px solid #4a8ac8;
    backdrop-filter: blur(10px);
}

.nav-btn {
    padding: 0.8rem 1.5rem;
    background: rgba(74, 138, 200, 0.2);
    border: 1px solid #4a8ac8;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.nav-btn:hover {
    background: rgba(74, 138, 200, 0.4);
    transform: translateY(-2px);
}

.nav-btn.active {
    background: linear-gradient(45deg, #4a8ac8, #8a4ac8);
    box-shadow: 0 4px 15px rgba(74, 138, 200, 0.3);
}

/* 通用按钮样式 */
.btn {
    padding: 0.8rem 1.5rem;
    background: linear-gradient(45deg, #4a8ac8, #8a4ac8);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    box-shadow: 0 2px 10px rgba(74, 138, 200, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(74, 138, 200, 0.5);
}

.btn:active {
    transform: translateY(0);
}

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

/* 卡片样式 */
.card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(74, 138, 200, 0.3);
    border-radius: 10px;
    padding: 1rem;
    margin: 0.5rem 0;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.card:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #4a8ac8;
    transform: translateY(-2px);
}

/* 进度条样式 */
.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4a8ac8, #8a4ac8);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, #4a8ac8, #8a4ac8);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #5a9ad8, #9a5ad8);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .menu-content h1 {
        font-size: 2.5rem;
    }
    
    .menu-btn {
        min-width: 150px;
        font-size: 1rem;
    }
    
    #status-bar {
        padding: 0.5rem 1rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .player-info, .resources {
        font-size: 0.8rem;
    }
    
    #navigation {
        padding: 0.5rem;
    }
    
    .nav-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

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

/* 特殊效果 */
.cyber-glow {
    box-shadow: 0 0 20px rgba(74, 138, 200, 0.5);
}

.cyber-border {
    border: 2px solid #4a8ac8;
    box-shadow: inset 0 0 10px rgba(74, 138, 200, 0.3);
}

/* 文本样式 */
.cyber-text {
    text-shadow: 0 0 10px rgba(74, 138, 200, 0.8);
}

.error-text {
    color: #ff6b6b;
    text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
}

.success-text {
    color: #4ecdc4;
    text-shadow: 0 0 10px rgba(78, 205, 196, 0.5);
}

.warning-text {
    color: #ffd93d;
    text-shadow: 0 0 10px rgba(255, 217, 61, 0.5);
}