/* ============================================================
   基金跟投策略追踪系统 — 样式表
   ============================================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --bg: #f0f2f5;
  --card-bg: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --primary: #2563eb;
  --primary-light: #dbeafe;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --success-light: #dcfce7;
  --success-bg: #f0fdf4;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --danger-bg: #fef2f2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --warning-bg: #fffbeb;
  --table-stripe: #f9fafb;
  --table-hover: #f3f4f6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --radius: 8px;
  --radius-sm: 4px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Consolas", monospace;
}

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

html { font-size: 14px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ---------- 顶部导航栏 ---------- */
.top-bar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.app-title { font-size: 1.15rem; font-weight: 700; white-space: nowrap; color: var(--text); }
.main-tabs { display: flex; gap: 4px; flex: 1; }
.tab-btn {
  padding: 8px 20px;
  border: none;
  background: transparent;
  font-size: 0.95rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.15s;
}
.tab-btn:hover { background: var(--border-light); color: var(--text); }
.tab-btn.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }

.header-actions { display: flex; gap: 8px; }

/* ---------- 按钮 ---------- */
.btn {
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s;
  white-space: nowrap;
  font-family: var(--font);
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.btn-outline:hover { background: var(--border-light); border-color: var(--text-muted); }
.btn-sm { padding: 5px 10px; font-size: 0.82rem; }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { opacity: 0.9; }
.btn-manage { color: var(--primary); border-color: var(--primary); }

/* ---------- 主内容区 ---------- */
.main-content { max-width: 1400px; margin: 0 auto; padding: 20px 24px; }

/* ---------- 标签页内容 ---------- */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  border: 1px solid var(--border);
}
.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: default;
}
.card-header h2 { font-size: 1.05rem; font-weight: 600; }
.collapsible .card-header { cursor: pointer; user-select: none; }
.collapsible .card-header:hover { background: var(--border-light); }
.toggle-icon { font-size: 0.8rem; color: var(--text-muted); transition: transform 0.2s; }
.collapsible:not(.collapsed) .toggle-icon { transform: rotate(180deg); }
.card-body { padding: 16px 20px; }
.collapsible.collapsed .card-body { display: none; }

.header-info { display: flex; gap: 16px; font-size: 0.85rem; color: var(--text-secondary); }

/* ---------- 表单 ---------- */
.form-row { display: grid; gap: 12px; margin-bottom: 12px; }
.form-row-2 { grid-template-columns: 1fr 1fr; }
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }

.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 0.82rem; font-weight: 500; color: var(--text-secondary); }
.form-group input, .form-group select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font);
  transition: border-color 0.15s;
  background: var(--card-bg);
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}
.form-group input[type="number"] { font-family: var(--font-mono); }
.required { color: var(--danger); }

.form-divider {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin: 8px 0 12px;
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  margin-top: 8px;
}
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  margin-left: auto;
}
.form-feedback {
  font-size: 0.85rem;
  font-weight: 600;
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 28px;
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.form-feedback.show { opacity: 1; }
.form-feedback.success { background: #16a34a; color: #fff; }
.form-feedback.error { background: #dc2626; color: #fff; }

/* ---------- 筛选栏 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px;
  margin-bottom: 16px;
  padding: 12px;
  background: var(--border-light);
  border-radius: var(--radius-sm);
}
.filter-group { display: flex; flex-direction: column; gap: 3px; }
.filter-group label { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; }
.filter-group select, .filter-group input {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font);
  background: var(--card-bg);
}
.filter-group input[type="date"] { width: 140px; }
.filter-count { margin-left: auto; font-size: 0.85rem; color: var(--text-secondary); white-space: nowrap; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.data-table thead { position: sticky; top: 0; z-index: 1; }
.data-table th {
  background: var(--border-light);
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
  border-bottom: 2px solid var(--border);
}
.data-table th.sortable { cursor: pointer; user-select: none; }
.data-table th.sortable:hover { background: var(--border); color: var(--text); }
.data-table th.sorted-asc::after { content: " ▲"; }
.data-table th.sorted-desc::after { content: " ▼"; }
.data-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}
.data-table tbody tr:nth-child(even) { background: var(--table-stripe); }
.data-table tbody tr:hover { background: var(--table-hover); }
.data-table tbody tr.clickable { cursor: pointer; }
.empty-row td { text-align: center; color: var(--text-muted); padding: 32px 12px; }

/* 盈亏颜色 */
.pl-positive { color: var(--success); font-weight: 600; }
.pl-negative { color: var(--danger); font-weight: 600; }
.pl-zero { color: var(--text-muted); }

/* 信号强度标签 */
.tag { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 0.78rem; font-weight: 600; }
.tag-strong { background: var(--danger-bg); color: var(--danger); }
.tag-medium { background: var(--warning-bg); color: var(--warning); }
.tag-weak { background: var(--border-light); color: var(--text-muted); }

/* 分数颜色 */
.score-high { background: var(--success-bg); color: var(--success); font-weight: 600; padding: 2px 6px; border-radius: 3px; }
.score-mid { background: var(--warning-bg); color: var(--warning); font-weight: 600; padding: 2px 6px; border-radius: 3px; }
.score-low { background: var(--danger-bg); color: var(--danger); font-weight: 600; padding: 2px 6px; border-radius: 3px; }

/* ---------- 表格汇总行 ---------- */
.table-summary {
  display: flex;
  gap: 24px;
  padding: 12px 0 4px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-top: 2px solid var(--border);
  margin-top: 8px;
}
.table-summary strong { color: var(--text); }

/* ---------- 子标签页 ---------- */
.sub-tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 2px solid var(--border-light); }
.sub-tab-btn {
  padding: 8px 18px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
  font-family: var(--font);
}
.sub-tab-btn:hover { color: var(--text); }
.sub-tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.sub-tab-content { display: none; }
.sub-tab-content.active { display: block; }

/* ---------- 图表面板 ---------- */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}
.chart-container {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  padding: 12px;
  border: 1px solid var(--border-light);
}
.chart-container h3 { font-size: 0.9rem; margin-bottom: 8px; color: var(--text-secondary); text-align: center; }
.chart-container canvas { max-height: 280px; }
.chart-radar canvas { max-height: 350px; }

/* ---------- 详情面板 ---------- */
.detail-manual-entry {
  background: var(--warning-bg);
  border: 1px solid var(--warning-light);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin-bottom: 16px;
}
.detail-manual-entry h3 {
  font-size: 0.95rem;
  margin-bottom: 10px;
}
.manual-entry-form {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}
.manual-entry-form .form-group { margin-bottom: 0; }
.manual-entry-form .form-group label {
  font-size: 0.78rem;
  margin-bottom: 2px;
}
.manual-entry-form .form-group input,
.manual-entry-form .form-group select {
  padding: 6px 10px;
  font-size: 0.88rem;
}
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 20px;
  margin-bottom: 16px;
}

/* ---------- 筛选器操作 ---------- */
.screener-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.screener-info { font-size: 0.85rem; color: var(--text-muted); margin-left: 8px; }

/* ---------- 配置面板 ---------- */
.config-section { margin-bottom: 20px; }
.config-section h3 { font-size: 0.95rem; margin-bottom: 12px; color: var(--text); }
.slider-list { display: flex; flex-direction: column; gap: 12px; }
.slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.slider-row label {
  width: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
}
.slider-row input[type="range"] { flex: 1; }
.slider-row .slider-val {
  width: 48px;
  text-align: right;
  font-weight: 600;
  font-size: 0.9rem;
}
.slider-row .slider-btns { display: flex; gap: 2px; }
.slider-row .slider-btns button {
  width: 24px; height: 24px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
}
.config-total { text-align: right; font-size: 1.1rem; margin-top: 8px; color: var(--text); }
.config-total .valid { color: var(--success); }
.config-total .invalid { color: var(--danger); }

.threshold-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 12px;
}

.config-actions { display: flex; gap: 10px; margin-bottom: 16px; }

/* ---------- 进度条 ---------- */
.progress-container {
  margin: 10px 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.progress-bar {
  flex: 1;
  height: 10px;
  background: var(--border-light);
  border-radius: 5px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 5px;
  width: 0%;
  transition: width 0.15s ease;
}
.progress-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 80px;
}

/* ---------- 弹窗 ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.modal {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  overflow-y: auto;
}
.modal-lg { max-width: 1000px; }
.modal-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky; top: 0; background: var(--card-bg); z-index: 1;
}
.modal-header h2 { font-size: 1.1rem; }
.modal-body { padding: 20px; }

/* ---------- 股票回测 ---------- */
.backtest-return-positive { color: var(--success); font-weight: 600; }
.backtest-return-negative { color: var(--danger); font-weight: 600; }
#stockPricesTable .data-table tbody { font-size: 0.85rem; }
#backtestTable td { font-size: 0.83rem; }
#backtestTable td .pl-positive,
#backtestTable td .pl-negative,
#backtestTable td .pl-zero { font-size: 0.83rem; }

/* ---------- 响应式 ---------- */

/* 平板 (768-1100px) */
@media (max-width: 1100px) {
  .charts-grid { grid-template-columns: 1fr 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .form-row-4 { grid-template-columns: 1fr 1fr; }
  .form-row-3 { grid-template-columns: 1fr 1fr; }
}

/* 手机横屏 / 小平板 (600-768px) */
@media (max-width: 768px) {
  .top-bar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 12px;
    gap: 6px;
  }
  .app-title { font-size: 0.95rem; }
  .main-tabs { order: 2; width: 100%; }
  .header-actions {
    flex-wrap: wrap;
    gap: 4px;
  }
  .header-actions .btn {
    padding: 6px 10px;
    font-size: 0.78rem;
  }
  .main-content { padding: 10px 8px; }
  .card-header { padding: 10px 14px; }
  .card-header h2 { font-size: 0.95rem; }
  .card-body { padding: 10px 12px; }

  .form-row-4, .form-row-3, .form-row-2 { grid-template-columns: 1fr; }

  .filter-bar { flex-direction: column; align-items: stretch; gap: 8px; }
  .filter-group input[type="date"] { width: 100%; }
  .filter-count { margin-left: 0; text-align: right; }

  .charts-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .threshold-grid { grid-template-columns: 1fr 1fr; }

  .table-summary {
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.82rem;
  }

  .screener-actions { flex-wrap: wrap; gap: 6px; }
  .screener-info { width: 100%; margin-left: 0; margin-top: 4px; }

  .config-actions { flex-wrap: wrap; }

  .sub-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: 2px;
  }
  .sub-tab-btn {
    white-space: nowrap;
    padding: 8px 14px;
    font-size: 0.82rem;
  }

  .data-table th, .data-table td {
    padding: 7px 8px;
    font-size: 0.8rem;
  }

  .slider-row {
    flex-wrap: wrap;
    gap: 6px;
  }
  .slider-row label { width: 100%; }
  .slider-row .slider-btns { order: 3; }

  .modal { width: 95%; max-height: 90vh; }

  .tag { padding: 1px 8px; font-size: 0.72rem; }
}

/* 手机小屏 (< 480px) */
@media (max-width: 480px) {
  html { font-size: 13px; }

  .top-bar {
    position: relative;
    padding: 6px 8px;
  }
  .app-title { font-size: 0.85rem; }
  .tab-btn { padding: 6px 12px; font-size: 0.82rem; }

  .btn { padding: 6px 12px; font-size: 0.82rem; }
  .btn-sm { padding: 4px 8px; font-size: 0.75rem; }

  .form-group input, .form-group select {
    padding: 10px 10px;  /* 更大触摸区域 */
    font-size: 16px;      /* 防止 iOS 缩放 */
  }

  .data-table {
    font-size: 0.75rem;
  }
  .data-table th, .data-table td {
    padding: 6px 5px;
  }

  .threshold-grid { grid-template-columns: 1fr; }

  .modal { width: 98%; max-height: 95vh; border-radius: 4px; }
  .modal-header { padding: 10px 12px; }
  .modal-body { padding: 10px; }

  .table-summary {
    flex-direction: column;
    gap: 4px;
  }

  .form-actions {
    flex-wrap: wrap;
    gap: 6px;
  }
  .form-actions .checkbox-label {
    margin-left: 0;
    width: 100%;
  }
}

/* ---------- 股票行情显示 ---------- */
.stock-quote {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 0.85rem;
  white-space: nowrap;
}
.quote-price {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}
.quote-change {
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 3px;
}
.quote-change.up {
  color: var(--danger);
  background: #fef2f2;
}
.quote-change.down {
  color: var(--success);
  background: var(--success-light);
}
.quote-range {
  color: var(--text-secondary);
  font-size: 0.78rem;
}
.quote-loading {
  color: var(--text-muted);
  font-size: 0.78rem;
}