:root {
  --bg0: #0d1117; --bg1: #161b22; --bg2: #21262d; --bg3: #30363d; --bg4: #484f58;
  --fg0: #e6edf3; --fg1: #c9d1d9; --fg2: #8b949e; --fg3: #6e7681;
  --green: #3fb950; --green-dim: #238636; --red: #f85149; --red-dim: #da3633;
  --yellow: #d2991d; --blue: #58a6ff; --blue-dim: #1f6feb;
  --border: 1px solid var(--bg3); --radius: 8px; --shadow: 0 2px 8px rgba(0,0,0,0.4);
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Cascadia Code", "Fira Code", "SF Mono", Consolas, monospace;
  --sidebar-w: 220px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); background: var(--bg0); color: var(--fg0); display: flex; min-height: 100vh; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg1); }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 3px; }

/* Sidebar */
#sidebar {
  width: var(--sidebar-w); min-width: var(--sidebar-w); background: var(--bg1);
  border-right: var(--border); display: flex; flex-direction: column; height: 100vh;
  position: sticky; top: 0; overflow-y: auto;
}
.sidebar-brand {
  padding: 16px 18px 12px; border-bottom: var(--border);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-brand .logo-text { font-size: 1.1rem; font-weight: 700; white-space: nowrap; }
.sidebar-brand .version-tag {
  font-size: .65rem; color: #bc8cff; background: rgba(188,140,255,0.12);
  padding: 1px 6px; border-radius: 4px;
}
.sidebar-nav { flex: 1; padding: 8px; list-style: none; }
.sidebar-nav li { margin: 2px 0; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: 6px; color: var(--fg1); font-size: .9rem; text-decoration: none;
  cursor: pointer; transition: background .2s;
}
.sidebar-nav a:hover { background: var(--bg2); color: var(--fg0); }
.sidebar-nav a.active { background: var(--blue-dim); color: #fff; }
.sidebar-nav a .nav-icon { width: 20px; text-align: center; font-size: 1rem; flex-shrink: 0; }

/* Content */
#content { flex: 1; padding: 20px 24px; overflow-y: auto; min-height: 100vh; }
.page-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 16px; }

/* Card */
.card { background: var(--bg1); border: var(--border); border-radius: var(--radius); padding: 16px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; padding-bottom: 8px; border-bottom: var(--border); }
.card-title { font-size: .95rem; font-weight: 600; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.section { margin-bottom: 24px; }

/* KPI */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.kpi { background: var(--bg2); border-radius: var(--radius); padding: 12px 14px; border-left: 3px solid var(--bg4); }
.kpi .kpi-label { font-size: .75rem; color: var(--fg2); text-transform: uppercase; }
.kpi .kpi-value { font-size: 1.25rem; font-weight: 700; margin-top: 2px; font-family: var(--font-mono); }
.kpi.border-green { border-left-color: var(--green); }
.kpi.border-red { border-left-color: var(--red); }
.kpi.border-yellow { border-left-color: var(--yellow); }
.kpi.border-blue { border-left-color: var(--blue); }

/* Table */
.data-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.data-table th { text-align: left; padding: 8px 12px; color: var(--fg2); font-weight: 600; border-bottom: 2px solid var(--bg3); white-space: nowrap; }
.data-table td { padding: 6px 12px; border-bottom: 1px solid var(--bg2); white-space: nowrap; }
.data-table tbody tr:hover { background: var(--bg2); cursor: pointer; }

/* Badge */
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: .75rem; font-weight: 600; }
.badge-buy { background: rgba(63,185,80,0.15); color: var(--green); }
.badge-sell { background: rgba(248,81,73,0.15); color: var(--red); }
.badge-hold { background: rgba(210,153,29,0.15); color: var(--yellow); }
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.text-yellow { color: var(--yellow); }
.text-fg2 { color: var(--fg2); }
.text-sm { font-size: .85rem; }
.text-xs { font-size: .75rem; }
.text-mono { font-family: var(--font-mono); }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mb-2 { margin-bottom: 8px; }

/* Signal Banner */
.signal-banner {
  display: flex; align-items: center; gap: 14px; padding: 16px 20px;
  border-radius: var(--radius); margin-bottom: 16px;
}
.signal-banner.buy { background: rgba(63,185,80,0.1); border: 1px solid var(--green-dim); }
.signal-banner.sell { background: rgba(248,81,73,0.1); border: 1px solid var(--red-dim); }
.signal-banner.hold { background: rgba(210,153,29,0.1); border: 1px solid var(--yellow-dim); }
.signal-icon {
  font-size: 2rem; width: 48px; height: 48px; display: flex; align-items: center;
  justify-content: center; border-radius: 50%; flex-shrink: 0;
}
.signal-banner.buy .signal-icon { background: rgba(63,185,80,0.2); color: var(--green); }
.signal-banner.sell .signal-icon { background: rgba(248,81,73,0.2); color: var(--red); }
.signal-banner.hold .signal-icon { background: rgba(210,153,29,0.2); color: var(--yellow); }

/* Chart */
#klineChart { width: 100%; height: 420px; }

/* Info rows */
.info-table { display: flex; flex-direction: column; }
.info-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--bg2); font-size: .85rem; }
.info-row:last-child { border-bottom: none; }
.info-key { color: var(--fg2); }
.info-val { font-family: var(--font-mono); }

/* Maidian items */
.maidian-list { display: flex; flex-direction: column; gap: 4px; }
.maidian-item { padding: 8px 12px; border-radius: 6px; font-size: .85rem; }
.maidian-item.buy { background: rgba(63,185,80,0.1); border-left: 3px solid var(--green); color: var(--green); }
.maidian-item.sell { background: rgba(248,81,73,0.1); border-left: 3px solid var(--red); color: var(--red); }
.maidian-item .note { font-size: .75rem; color: var(--fg2); margin-top: 2px; }

/* Bi list */
.bi-list { max-height: 200px; overflow-y: auto; }
.bi-item { padding: 4px 8px; font-size: .8rem; border-bottom: 1px solid var(--bg2); display: flex; gap: 8px; }

/* Stock pick list */
.stock-pick-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-bottom: 1px solid var(--bg2); cursor: pointer; transition: background .15s;
}
.stock-pick-item:hover { background: var(--bg2); }
.stock-pick-item:last-child { border-bottom: none; }
.stock-pick-left { min-width: 0; }
.stock-pick-code { font-family: var(--font-mono); font-weight: 600; font-size: .9rem; }
.stock-pick-name { font-size: .8rem; color: var(--fg2); }
.stock-pick-right { text-align: right; flex-shrink: 0; }
.stock-pick-score { font-family: var(--font-mono); font-weight: 700; font-size: 1.1rem; }
.stock-pick-signal { font-size: .75rem; margin-top: 2px; }

/* Loading */
.loading { text-align: center; padding: 60px; color: var(--fg2); }

/* Pipeline */
.pipeline { display: flex; gap: 4px; justify-content: center; flex-wrap: wrap; padding: 8px 0; }
.pipe-step { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 16px; background: var(--bg2); border: 1px solid var(--bg3); font-size: 13px; color: var(--fg1); }
.pipe-step .num { font-weight: 700; }
.pipe-arrow { color: var(--fg3); font-size: 14px; }

/* Responsive */
@media (max-width: 900px) {
  #sidebar { position: fixed; left: 0; top: 0; bottom: 0; z-index: 100; transform: translateX(-100%); transition: transform .25s; }
  #sidebar.open { transform: translateX(0); }
  .grid-2 { grid-template-columns: 1fr; }
  #content { padding: 12px; }
}