/* ===== 思念食品 隧道产能视觉监控系统 ===== */

:root {
    --primary: #1a3a6b;
    --primary-light: #2F5496;
    --accent: #e67e22;
    --success: #27ae60;
    --danger: #e74c3c;
    --warning: #f39c12;
    --bg-dark: #0a1628;
    --bg-card: #152238;
    --bg-card-hover: #1c2d4a;
    --text-primary: #ecf0f1;
    --text-secondary: #95a5a6;
    --text-muted: #6c7a89;
    --border: #1e3350;
    --font-mono: 'Courier New', monospace;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== 顶部导航 ===== */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    padding: 0 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-bottom: 2px solid var(--accent);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-left { display: flex; align-items: center; gap: 16px; }
.logo {
    font-size: 20px;
    font-weight: 900;
    color: #fff;
    letter-spacing: 2px;
}
.project-title {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    border-left: 1px solid rgba(255,255,255,0.3);
    padding-left: 12px;
}
.top-center .base-info {
    font-size: 15px;
    color: #fff;
    font-weight: 500;
}
.top-right {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
}
.mqtt-status {
    padding: 3px 10px;
    border-radius: 12px;
    background: rgba(255,255,255,0.15);
    color: var(--text-secondary);
}
.mqtt-status.connected {
    background: rgba(39, 174, 96, 0.25);
    color: var(--success);
}
.clock { font-family: var(--font-mono); color: #fff; font-size: 15px; }
.version { color: var(--text-muted); font-size: 12px; }

/* ===== 主内容 ===== */
.main-content {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 1920px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
.section-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    border-left: 3px solid var(--accent);
    padding-left: 10px;
}
.section-header .alert-count {
    font-size: 12px;
    color: var(--accent);
    background: rgba(230,126,34,0.15);
    padding: 2px 8px;
    border-radius: 10px;
}

/* ===== 产线监控区 ===== */
.line-monitor-section {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 12px 16px;
}

.tab-filters {
    display: flex;
    gap: 4px;
}
.tab-btn {
    padding: 4px 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}
.tab-btn.active, .tab-btn:hover {
    background: var(--primary-light);
    color: #fff;
    border-color: var(--primary-light);
}

.line-cards {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 6px;
}
.line-cards::-webkit-scrollbar { height: 4px; }
.line-cards::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.line-card {
    min-width: 220px;
    max-width: 260px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}
.line-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.line-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.line-name { font-weight: 700; font-size: 15px; }
.line-product {
    font-size: 11px;
    color: var(--text-muted);
    background: rgba(255,255,255,0.05);
    padding: 2px 8px;
    border-radius: 8px;
}

.line-metrics {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}
.metric {
    flex: 1;
    text-align: center;
}
.metric-label { display: block; font-size: 11px; color: var(--text-muted); }
.metric-value { display: block; font-size: 22px; font-weight: 700; color: #fff; font-family: var(--font-mono); }
.metric-value small { font-size: 12px; font-weight: 400; color: var(--text-secondary); }
.metric-value.highlight { color: var(--success); }
.metric-value.good { color: var(--success); }

.line-info {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
}
.line-info span {
    background: rgba(255,255,255,0.03);
    padding: 2px 6px;
    border-radius: 4px;
}

/* ===== 预警信息 ===== */
.alert-section {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 10px 16px;
}
.alert-scroll {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
}
.alert-scroll::-webkit-scrollbar { height: 3px; }
.alert-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.alert-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(231,76,60,0.1);
    border: 1px solid rgba(231,76,60,0.2);
    border-radius: 6px;
    white-space: nowrap;
    font-size: 12px;
    flex-shrink: 0;
}
.alert-item.info {
    background: rgba(243,156,18,0.1);
    border-color: rgba(243,156,18,0.2);
}
.alert-type-tag {
    padding: 1px 6px;
    border-radius: 4px;
    background: rgba(231,76,60,0.2);
    color: var(--danger);
    font-size: 11px;
}
.alert-item.info .alert-type-tag {
    background: rgba(243,156,18,0.2);
    color: var(--warning);
}
.alert-time { color: var(--text-muted); font-size: 11px; }
.alert-content { color: var(--text-primary); }
.alert-empty { color: var(--text-muted); font-size: 13px; padding: 6px; }

/* ===== 图表区 ===== */
.charts-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    grid-template-areas:
        "chart1 chart2"
        "chart3 chart4";
    gap: 12px;
}

.chart-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 12px;
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.chart-header h3 {
    font-size: 14px;
    font-weight: 600;
}
.chart-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}
.chart-controls button {
    padding: 3px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 11px;
    transition: all 0.2s;
}
.chart-controls button.active,
.chart-controls button:hover {
    background: var(--primary-light);
    color: #fff;
    border-color: var(--primary-light);
}
.chart-date {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}
.chart-controls select {
    padding: 3px 6px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-card-hover);
    color: var(--text-primary);
    font-size: 11px;
}

.chart-body {
    flex: 1;
    min-height: 0;
}
.chart-container {
    width: 100%;
    height: 100%;
    min-height: 260px;
}

/* ===== 弹窗 ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    overflow-y: auto;
}
.modal-lg { max-width: 900px; }
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 18px; }
.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
}
.close-btn:hover { color: var(--danger); }
.modal-body { padding: 20px; }

/* 详情弹窗 */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}
.detail-card {
    background: var(--bg-card-hover);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
}
.detail-card h4 {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.big-num { font-size: 28px; font-weight: 700; font-family: var(--font-mono); margin-bottom: 4px; }
.big-num small { font-size: 14px; color: var(--text-secondary); }
.detail-card .good { color: var(--success); }

.machine-mini {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 2px 0;
}
.machine-mini .online { color: var(--success); }
.machine-mini .offline { color: var(--danger); }

.mini-charts {
    display: flex;
    gap: 12px;
}

/* 隧道时间利用率弹窗 */
.tunnel-times {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-top: 12px;
}
.time-item {
    display: flex;
    justify-content: space-between;
    padding: 4px 8px;
    background: var(--bg-card-hover);
    border-radius: 4px;
    font-size: 12px;
}
.time-label { color: var(--text-muted); }
.time-val { color: var(--text-primary); font-family: var(--font-mono); }
.time-pct { color: var(--accent); font-family: var(--font-mono); width: 56px; text-align: right; }

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .charts-section {
        grid-template-columns: 1fr;
        grid-template-areas:
            "chart1"
            "chart2"
            "chart3"
            "chart4";
    }
    .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .top-center { display: none; }
    .line-card { min-width: 180px; }
    .metric-value { font-size: 18px; }
}