/* ========================================
   StockStats - 美股分析工具样式
   ======================================== */

/* CSS 变量 */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-blue: #58a6ff;
    --accent-green: #3fb950;
    --accent-red: #f85149;
    --accent-yellow: #d29922;
    --chart-up: #26a69a;
    --chart-down: #ef5350;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    --radius: 8px;
    --radius-small: 4px;
}

/* 基础重置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* 应用容器 */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ========================================
   顶部导航
   ======================================== */
.header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 12px 24px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.logo-icon {
    font-size: 24px;
}

.logo-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.search-box {
    display: flex;
    flex: 1;
    max-width: 500px;
    gap: 8px;
}

.search-box input {
    flex: 1;
    padding: 8px 16px;
    font-size: 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}

.search-box input:focus {
    border-color: var(--accent-blue);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.status {
    margin-left: auto;
}

.status-badge {
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 12px;
    font-weight: 500;
}

.status-badge.loading {
    background-color: var(--accent-yellow);
    color: #000;
}

.status-badge.ready {
    background-color: var(--accent-green);
    color: #000;
}

.status-badge.error {
    background-color: var(--accent-red);
    color: #fff;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.btn-primary {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
}

.btn-primary:hover {
    background-color: #4c8ed9;
}

.btn-small {
    padding: 4px 12px;
    font-size: 12px;
}

.btn-small.active {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
}

/* ========================================
   主内容区
   ======================================== */
.main-content {
    display: flex;
    flex: 1;
    gap: 1px;
    background-color: var(--border-color);
}

/* 图表区域 */
.chart-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
    padding: 20px;
    gap: 16px;
}

/* 股票信息 */
.stock-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stock-header {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.stock-name {
    font-size: 24px;
    font-weight: 600;
}

.stock-symbol {
    font-size: 16px;
    color: var(--text-secondary);
}

.stock-price-container {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.stock-price {
    font-size: 32px;
    font-weight: 700;
}

.stock-change {
    font-size: 18px;
    font-weight: 500;
}

.stock-change.up {
    color: var(--chart-up);
}

.stock-change.down {
    color: var(--chart-down);
}

/* 图表容器 */
.chart-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    overflow: hidden;
}

.chart-toolbar {
    display: flex;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.time-range,
.chart-type {
    display: flex;
    gap: 4px;
}

.chart {
    flex: 1;
    min-height: 400px;
}

.volume-chart {
    height: 100px;
    border-top: 1px solid var(--border-color);
}

/* ========================================
   右侧指标面板
   ======================================== */
.indicator-panel {
    width: 300px;
    background-color: var(--bg-secondary);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
}

.panel-title {
    font-size: 18px;
    font-weight: 600;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* 指标选择器 */
.indicator-selector {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
}

.checkbox-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-blue);
}

/* 指标数值网格 */
.indicator-grid,
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.indicator-item,
.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-small);
}

.indicator-label,
.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.indicator-value,
.stat-value {
    font-size: 16px;
    font-weight: 600;
}

/* ========================================
   底部状态栏
   ======================================== */
.footer {
    display: flex;
    justify-content: space-between;
    padding: 8px 24px;
    font-size: 12px;
    color: var(--text-muted);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

/* ========================================
   加载覆盖层
   ======================================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(13, 17, 23, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    z-index: 1000;
    transition: opacity 0.3s;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .main-content {
        flex-direction: column;
    }

    .indicator-panel {
        width: 100%;
    }

    .indicator-grid,
    .stat-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        flex-wrap: wrap;
        gap: 12px;
    }

    .search-box {
        order: 3;
        max-width: none;
        width: 100%;
    }

    .chart {
        min-height: 300px;
    }

    .indicator-grid,
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .header {
        padding: 12px 16px;
    }

    .chart-section {
        padding: 12px;
    }

    .indicator-panel {
        padding: 16px;
    }

    .stock-name {
        font-size: 20px;
    }

    .stock-price {
        font-size: 24px;
    }
}