/* 移动端控件样式设计规范 - 示例CSS */

:root {
    /* 主色调 - 深空科技蓝 */
    --primary-color: #6366f1;
    --primary-light: #8b5cf6;
    --primary-dark: #4f46e5;
    
    /* 辅助色 - 科技青色 */
    --secondary-color: #40e0d0;
    --secondary-light: #26d0ce;
    
    /* 强调色 - 橙色 */
    --accent-color: #f59e0b;
    --accent-light: #fbbf24;
    
    /* 危险色 - 红色 */
    --danger-color: #ff4757;
    --danger-light: #ff6b6b;
    
    /* 背景色系 - 深色渐变 */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1d29;
    --bg-tertiary: #252837;
    --bg-elevated: #2d3142;
    
    /* 渐变背景 */
    --gradient-bg: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 30%, #16213e 70%, #0f3460 100%);
    
    /* 边框色系 */
    --border-primary: #3d4159;
    --border-secondary: #4a5073;
    --border-highlight: #6366f1;
    --border-accent: rgba(64, 224, 208, 0.3);
    
    /* 文字色系 */
    --text-primary: #ffffff;
    --text-secondary: #b4b7c9;
    --text-tertiary: #9ca3af;
    --text-disabled: #6b7280;
    
    /* 移动端触摸区域尺寸 */
    --touch-target-min: 44px;
    --safe-area-padding: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    height: 100%;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Microsoft YaHei UI", sans-serif;
    background: var(--gradient-bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    touch-action: manipulation;
}

/* PWA 支持的安全区域适配 */
.safe-area {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

/* 动态星空背景 */
.star-field {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.star {
    position: absolute;
    background: rgba(64, 224, 208, 0.8);
    border-radius: 50%;
    animation: twinkle 3s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* 主容器 - 全屏布局 */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* 状态栏 */
.status-bar {
    background: rgba(26, 29, 41, 0.95);
    backdrop-filter: blur(20px);
    padding: 8px var(--safe-area-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-tertiary);
    position: sticky;
    top: 0;
    z-index: 100;
}

.network-status {
    display: flex;
    align-items: center;
    gap: 6px;
}

.connection-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--secondary-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(1.3); }
}

/* 主内容区域 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--safe-area-padding);
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
}

.page-title {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

/* 页签切换容器 */
.tab-container {
    width: 100%;
    max-width: 400px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
}

.tab-header {
    display: flex;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-primary);
}

.tab-item {
    flex: 1;
    padding: 12px;
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.tab-item.active {
    color: var(--primary-color);
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--primary-color);
}

.tab-content {
    padding: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 按钮控件 */
.btn {
    min-height: var(--touch-target-min);
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    padding: 14px 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    overflow: hidden;
}

/* 按钮触摸反馈效果 */
.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.btn:active::before {
    width: 100%;
    height: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover, .btn-primary:focus {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    color: #1a1a2e;
    box-shadow: 0 4px 16px rgba(64, 224, 208, 0.3);
}

.btn-success:hover, .btn-success:focus {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(64, 224, 208, 0.4);
}

.btn-secondary {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover, .btn-secondary:focus {
    background: rgba(99, 102, 241, 0.25);
    transform: translateY(-1px);
}

/* 按钮组 */
.action-buttons {
    width: 100%;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 20px;
}

/* 卡片控件 */
.card {
    width: 100%;
    max-width: 400px;
    background: rgba(22, 33, 62, 0.8);
    border: 1px solid rgba(64, 224, 208, 0.3);
    border-radius: 16px;
    padding: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-primary);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.card-body {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    text-align: left;
}

.card-footer {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-primary);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* 统计卡片 */
.stats-card {
    background: rgba(22, 33, 62, 0.8);
    border: 1px solid rgba(64, 224, 208, 0.3);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.stats-title {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
}

.stats-value {
    font-size: 20px;
    font-weight: bold;
    color: var(--secondary-color);
    text-shadow: 0 0 10px rgba(64, 224, 208, 0.3);
}

/* 列表控件 */
.list-container {
    width: 100%;
    max-width: 400px;
    background: rgba(22, 33, 62, 0.8);
    border: 1px solid rgba(64, 224, 208, 0.3);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    margin-bottom: 20px;
}

.list-item {
    padding: 16px;
    border-bottom: 1px solid rgba(64, 224, 208, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:active {
    background: rgba(64, 224, 208, 0.1);
    transform: scale(0.98);
}

.list-item-title {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 500;
    text-align: left;
}

.list-item-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
    text-align: left;
}

.list-item-value {
    font-size: 16px;
    color: var(--secondary-color);
    font-weight: 600;
}

/* 历史记录列表 */
.history-list {
    max-height: 200px;
    overflow-y: auto;
    background: rgba(15, 52, 96, 0.4);
    border-radius: 12px;
    padding: 12px;
    width: 100%;
    max-width: 400px;
}

.history-item {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 8px;
    padding: 8px;
    background: rgba(64, 224, 208, 0.1);
    border-radius: 8px;
    border-left: 3px solid var(--secondary-color);
    transition: all 0.3s ease;
    text-align: left;
}

.history-item:last-child {
    margin-bottom: 0;
}

.history-item.hit {
    border-left-color: var(--danger-color);
    background: rgba(255, 71, 87, 0.1);
}

.history-item.miss {
    border-left-color: var(--text-tertiary);
    background: rgba(108, 117, 125, 0.1);
}

.history-item.destroy {
    border-left-color: var(--accent-color);
    background: rgba(245, 158, 11, 0.2);
    font-weight: 600;
}

/* 网格控件 */
.game-grid {
    width: 100%;
    aspect-ratio: 1;
    background: rgba(15, 52, 96, 0.6);
    border: 2px solid rgba(64, 224, 208, 0.5);
    border-radius: 12px;
    padding: 6px;
    backdrop-filter: blur(8px);
    position: relative;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    max-width: 400px;
}

.grid-container {
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    grid-template-rows: repeat(10, 1fr);
    gap: 1px;
    background: rgba(64, 224, 208, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.grid-cell {
    background: rgba(15, 52, 96, 0.8);
    border: 1px solid rgba(64, 224, 208, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.4);
    transition: all 0.2s ease;
    position: relative;
    min-height: 30px;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.grid-cell:active {
    background: rgba(64, 224, 208, 0.4);
    transform: scale(0.95);
    border-color: var(--secondary-color);
}

.grid-cell.hit {
    background: linear-gradient(135deg, var(--danger-color) 0%, var(--danger-light) 100%);
    color: white;
    animation: hitFlash 0.6s ease-out;
    box-shadow: 0 0 15px var(--danger-color);
}

.grid-cell.miss {
    background: rgba(108, 117, 125, 0.6);
    color: var(--text-tertiary);
}

@keyframes hitFlash {
    0% { 
        transform: scale(1);
        box-shadow: 0 0 10px var(--danger-color);
    }
    50% { 
        transform: scale(1.1);
        box-shadow: 0 0 20px var(--danger-color);
    }
    100% { 
        transform: scale(1);
        box-shadow: 0 0 5px var(--danger-color);
    }
}

/* 状态指示器 */
.network-status-indicator {
    position: fixed;
    top: calc(15px + env(safe-area-inset-top));
    right: 15px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--secondary-color);
    z-index: 101;
    opacity: 0.8;
}

.network-status-indicator.offline {
    background: var(--danger-color);
    animation: networkPulse 2s infinite;
}

@keyframes networkPulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 0.3; }
}

.turn-indicator {
    position: fixed;
    top: calc(70px + env(safe-area-inset-top));
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    z-index: 99;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.turn-indicator.my-turn {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
    color: #1a1a2e;
    box-shadow: 0 4px 20px rgba(64, 224, 208, 0.4);
}

.turn-indicator.opponent-turn {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.9) 0%, rgba(255, 56, 56, 0.9) 100%);
    color: white;
    border: 1px solid rgba(255, 71, 87, 0.6);
    box-shadow: 0 4px 20px rgba(255, 71, 87, 0.3);
}

/* 触摸反馈 */
.haptic-feedback {
    animation: hapticVibrate 0.1s ease-out;
}

@keyframes hapticVibrate {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

/* 响应式设计增强 */
@media (max-width: 375px) {
    .btn {
        font-size: 15px;
        min-height: 42px;
        padding: 12px 20px;
    }
    
    .grid-cell {
        font-size: 8px;
        min-height: 28px;
    }
    
    .stats-value {
        font-size: 16px;
    }
}

@media (max-height: 640px) {
    .main-content {
        justify-content: flex-start;
        padding-top: 20px;
    }
    
    .page-title {
        margin-bottom: 10px;
    }
    
    .card {
        margin: 10px 0;
        padding: 16px;
    }
}

/* 高对比度支持 */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #e5e5e5;
        --border-primary: #ffffff;
        --bg-secondary: #000000;
    }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 暗色模式强制支持 */
@media (prefers-color-scheme: dark) {
    body {
        background: var(--bg-primary);
        color: var(--text-primary);
    }
}