:root {
    --bg-dark: #121212;
    --bg-panel: #1e1e1e;
    --bg-hover: #2c2c2c;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #ff69b4; /* Jay Pink (HotPink) */
    --accent-hover: #ff1493; /* DeepPink */
    --border-color: #333;
    --sidebar-width: 64px;
    --panel-width: 320px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
}

#app {
    display: flex;
    height: 100%;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-dark);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 0;
    z-index: 2000;
}

.logo {
    color: var(--accent-color);
    font-size: 24px;
    margin-bottom: 32px;
}

.nav-items {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
}

.nav-item {
    width: 100%;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.nav-item:hover, .nav-item.active {
    color: var(--text-primary);
    background-color: var(--bg-hover);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: var(--accent-color);
}

.user-profile {
    margin-top: auto;
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--accent-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    font-size: 14px;
}

/* Panel */
.panel {
    width: var(--panel-width);
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    box-shadow: 4px 0 16px rgba(0,0,0,0.2);
}

.panel-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.subtitle {
    font-size: 12px;
    color: var(--text-secondary);
}

.panel-content {
    flex: 1;
    padding: 24px;
    overflow-y: hidden;
}

.metric-card {
    background-color: var(--bg-hover);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 24px;
}

.metric-title {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.metric-value {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.metric-change {
    font-size: 12px;
    color: #4ade80; /* Green */
    display: flex;
    align-items: center;
    gap: 4px;
}

.layer-control h3, .chart-container h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.layer-item {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    cursor: pointer;
}

.layer-item input {
    margin-right: 12px;
    accent-color: var(--accent-color);
}

.layer-item label {
    display: flex;
    align-items: center;
    font-size: 14px;
    cursor: pointer;
    flex: 1;
}

.color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 8px;
}

.color-dot.hub { background-color: #f59e0b; box-shadow: 0 0 8px rgba(245, 158, 11, 0.4); }
.color-dot.dev { background-color: #1785fb; box-shadow: 0 0 8px rgba(23, 133, 251, 0.4); }

.chart-container {
    margin-top: 32px;
    flex: 1; /* 占据剩余空间 */
    overflow: hidden; /* 隐藏容器滚动 */
    display: flex;
    flex-direction: column;
    min-height: 0; /* 关键：允许 flex 子项收缩 */
}

.bar-chart {
    flex: 1;
    overflow-y: auto; /* 条形图内容可滚动 */
    padding-right: 8px; /* 给滚动条留点空间 */
    max-height: 200px; /* 设置最大高度，确保滚动条能显示 */
    scrollbar-width: thin; /* Firefox 滚动条样式 */
    scrollbar-color: var(--accent-color) var(--bg-dark); /* Firefox 滚动条颜色 */
}

/* 自定义滚动条样式 (Chrome/Safari) */
.bar-chart::-webkit-scrollbar {
    width: 6px; /* 更明显的滚动条 */
}
.bar-chart::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
.bar-chart::-webkit-scrollbar-thumb {
    background-color: var(--accent-color); /* 使用主题色 */
    border-radius: 3px;
}
.bar-chart::-webkit-scrollbar-thumb:hover {
    background-color: var(--accent-hover); /* 悬停时加深 */
}

.bar-row {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    font-size: 12px;
}

.bar-row .label {
    width: 60px;
    color: var(--text-secondary);
    white-space: nowrap; /* 防止换行 */
    overflow: hidden;    /* 超出隐藏 */
    text-overflow: ellipsis; /* 显示省略号 */
}

.bar-bg {
    flex: 1;
    height: 6px;
    background-color: var(--bg-dark);
    border-radius: 3px;
    margin: 0 12px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background-color: var(--accent-color);
    border-radius: 3px;
}

.bar-row .value {
    width: 45px;
    text-align: right;
    font-weight: 500;
}

.panel-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}

.btn-primary {
    width: 100%;
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

/* Map */
#map {
    flex: 1;
    background-color: #111; /* Fallback */
    z-index: 1;
}

/* Toolbar */
.toolbar {
    position: absolute;
    top: 24px;
    right: 24px;
    display: flex;
    gap: 8px;
    z-index: 1000;
}

.toolbar button, .toolbar .btn-icon {
    width: 40px;
    height: 40px;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s;
    text-decoration: none; /* For <a> tags */
}

.toolbar .btn-icon.btn-text {
    width: auto;
    padding: 0 16px;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
}

.toolbar button:hover, .toolbar .btn-icon:hover {
    background-color: var(--bg-hover);
}

/* Map Icons & Animations */
@keyframes pulse-ring {
    0% {
        transform: scale(0.33);
        opacity: 0.8;
    }
    80%, 100% {
        transform: scale(1.5); /* 扩大脉冲范围 */
        opacity: 0;
    }
}

@keyframes pulse-dot {
    0% {
        transform: scale(0.8);
    }
    50% {
        transform: scale(1);
    }
    100% {
        transform: scale(0.8);
    }
}

.hub-marker {
    /* position: relative;  <-- 移除此行，Leaflet 的 Marker 必须是 absolute 定位，否则会失去地理位置跟随 */
    background: transparent; /* 确保背景透明 */
    width: 20px;
    height: 20px;
}

/* 扩散的波纹 */
.hub-marker::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 40px; /* 增加初始大小 */
    height: 40px;
    margin-left: -20px;
    margin-top: -20px;
    border-radius: 50%;
    background-color: rgba(245, 158, 11, 0.5);
    animation: pulse-ring 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

/* 额外的外发光层 */
.hub-marker::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 50px;
    height: 50px;
    margin-left: -25px;
    margin-top: -25px;
    border-radius: 50%;
    border: 1px solid rgba(245, 158, 11, 0.3);
    animation: pulse-ring 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
    animation-delay: 0.5s; /* 错开时间，形成多重波纹 */
}

/* 中心实心点 */
.hub-dot {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 14px;
    height: 14px;
    margin-left: -7px;
    margin-top: -7px;
    background-color: #f59e0b;
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.8);
    animation: pulse-dot 2s ease-in-out infinite;
    z-index: 2;
}

/* Leaflet Customization for Dark Theme */
.dark-filter {
    filter: invert(100%) hue-rotate(180deg) brightness(85%) contrast(90%) grayscale(30%);
    /* 
       invert(100%): 反转颜色，白变黑，黑变白
       hue-rotate(180deg): 修正色相，让水体从反转后的橙色变回蓝色
       brightness(85%): 稍微调暗一点，避免太刺眼
       contrast(90%): 降低对比度，更柔和
       grayscale(30%): 降低饱和度，更像科技风
    */
}

.leaflet-container {
    background: #111 !important;
    font-family: 'Inter', sans-serif !important;
}

.leaflet-control-zoom {
    border: none !important;
    box-shadow: none !important;
}

.leaflet-control-zoom a {
    background-color: var(--bg-panel) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 4px !important;
    margin-bottom: 4px !important;
}

.leaflet-control-zoom a:hover {
    background-color: var(--bg-hover) !important;
}

.leaflet-popup-content-wrapper, .leaflet-popup-tip {
    background: var(--bg-panel) !important;
    color: var(--text-primary) !important;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5) !important;
}

.leaflet-popup-content h3 {
    margin: 0 0 8px;
    font-size: 14px;
}

/* Media Queries for Responsiveness */
@media (max-width: 768px) {
    #app {
        flex-direction: column-reverse; /* 手机端面板在下，地图在上 */
    }

    /* 手机端面板需要滚动 */
    .panel-content {
        overflow-y: auto !important; 
        display: block !important;
    }

    .chart-container {
        overflow-y: visible !important; /* 手机端不需要内部滚动，随面板一起滚 */
        flex: none !important;
        min-height: auto !important;
    }

    .sidebar {
        flex-direction: row;
        width: 100%;
        height: 50px;
        padding: 0 16px;
        border-right: none;
        border-top: 1px solid var(--border-color);
        order: 3; /* 放在最底部 */
    }

    .logo {
        margin-bottom: 0;
        margin-right: auto;
        font-size: 20px;
    }

    .nav-items {
        flex-direction: row;
        width: auto;
        gap: 16px;
    }

    .nav-item {
        width: auto;
        height: 100%;
        padding: 0 12px;
    }
    
    .nav-item.active::before {
        left: 0;
        right: 0;
        top: 0;
        bottom: auto;
        width: 100%;
        height: 3px;
    }

    .user-profile {
        margin-top: 0;
        margin-left: 16px;
    }

    .panel {
        width: 100%;
        height: 40%; /* 默认占据 40% 高度 */
        border-right: none;
        border-top: 1px solid var(--border-color);
        order: 2; /* 放在中间 */
        transition: height 0.3s ease;
    }
    
    /* 可以在手机端添加一个折叠面板的交互 (可选) */
    .panel-header {
        padding: 16px;
    }
    
    .panel-content {
        padding: 16px;
        /* 手机端恢复默认滚动行为 */
        display: block;
        overflow-y: auto;
    }

    .chart-container {
        /* 手机端取消内部滚动，改为随面板滚动 */
        flex: none;
        overflow-y: visible;
        padding-right: 0;
        min-height: auto;
    }

    #map {
        height: 60%; /* 地图占据剩余空间 */
        order: 1; /* 地图在最上 */
    }

    .toolbar {
        top: 16px;
        right: 16px;
    }
}

/* Tablet / Small Laptop */
@media (min-width: 769px) and (max-width: 1024px) {
    :root {
        --panel-width: 280px; /* 平板端面板稍窄 */
    }
}