/* ===== Nexus dashboard styles ===== */
:root {
  --bg: #07090f;
  --bg-1: #0c1119;
  --bg-2: #11182452;
  --panel: #0f1623;
  --panel-2: #131c2c;
  --line: #1d2942;
  --text: #d8e1f4;
  --text-dim: #7d8aa6;
  --text-mute: #4a5673;
  --primary: #25d4f2;
  --primary-2: #5b8cff;
  --accent: #b07bff;
  --up: #ff4d6d;       /* A 股惯例：红涨 */
  --down: #19d27a;     /* 绿跌 */
  --warn: #ffb547;
  --shadow-glow: 0 0 24px rgba(37, 212, 242, 0.2);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(91, 140, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(176, 123, 255, 0.15), transparent 60%),
    var(--bg);
  overflow: hidden;
}

#app {
  display: grid;
  grid-template-columns: 240px 1fr;
  height: 100vh;
}

/* ---------- Sidebar ---------- */
#sidebar {
  background: linear-gradient(180deg, #0a0f1a 0%, #0c1220 100%);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 18px 12px 12px;
  position: relative;
}
#sidebar::after {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(37, 212, 242, 0.45), transparent);
  opacity: 0.5;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 16px;
  border-bottom: 1px dashed var(--line);
  margin-bottom: 12px;
}
.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 1px;
  color: #061018;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: var(--shadow-glow);
}
.brand-title {
  font-weight: 800;
  letter-spacing: 4px;
  font-size: 14px;
  color: #eaf2ff;
}
.brand-sub {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 1px;
}

#nav { flex: 1; overflow: auto; padding: 4px 4px 12px; }
.nav-group { margin-bottom: 14px; }
.nav-group-title {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-mute);
  text-transform: uppercase;
  padding: 6px 10px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  position: relative;
  transition: background 0.15s, color 0.15s;
}
.nav-item:hover { background: rgba(37, 212, 242, 0.06); color: var(--text); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(37, 212, 242, 0.18), rgba(37, 212, 242, 0));
  color: var(--text);
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--primary), var(--primary-2));
  box-shadow: 0 0 10px var(--primary);
}
.nav-item .ic {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--primary-2), var(--accent));
  opacity: 0.7;
  flex: 0 0 14px;
}
.nav-item.active .ic { opacity: 1; box-shadow: 0 0 8px var(--primary); }

.sidebar-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  border-top: 1px dashed var(--line);
  font-size: 11px;
  color: var(--text-mute);
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- Main ---------- */
#main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(20, 28, 46, 0.6), rgba(15, 22, 35, 0));
  backdrop-filter: blur(8px);
}
.crumb { font-size: 13px; color: var(--text-dim); }
.crumb #crumb-page { color: var(--text); font-weight: 600; margin-left: 4px; }
.crumb .sep { margin: 0 6px; color: var(--text-mute); }

.meta { display: flex; align-items: center; gap: 14px; font-size: 12px; color: var(--text-dim); }
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item.live {
  padding: 4px 10px;
  border: 1px solid rgba(37, 212, 242, 0.4);
  border-radius: 999px;
  color: var(--primary);
  letter-spacing: 1px;
  font-size: 11px;
}
.live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 8px var(--primary);
}

#view {
  flex: 1;
  overflow: auto;
  padding: 22px 24px 28px;
}

/* ---------- Component shell ---------- */
.panel {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}
.panel::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 212, 242, 0.7), transparent);
  opacity: 0.6;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.panel-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
}
.panel-title small {
  margin-left: 10px;
  font-size: 11px;
  color: var(--text-mute);
  font-weight: 400;
  letter-spacing: 0;
}

/* KPI cards */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.kpi {
  background: linear-gradient(160deg, rgba(37, 212, 242, 0.08), rgba(91, 140, 255, 0.04));
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  position: relative;
  overflow: hidden;
}
.kpi .label { font-size: 12px; color: var(--text-dim); letter-spacing: 1px; }
.kpi .value { font-size: 22px; font-weight: 700; margin-top: 6px; font-variant-numeric: tabular-nums; }
.kpi .sub { font-size: 11px; color: var(--text-mute); margin-top: 4px; }
.kpi.up .value { color: var(--up); }
.kpi.down .value { color: var(--down); }

/* Chart */
.chart {
  width: 100%;
  height: 420px;
}

/* Table */
.tbl-wrap {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: auto;
  max-height: 520px;
}
table.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
table.tbl thead th {
  position: sticky;
  top: 0;
  background: #0d1422;
  color: var(--text-dim);
  font-weight: 500;
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  letter-spacing: 1px;
  font-size: 11px;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
table.tbl thead th .sort-ind { color: var(--text-mute); margin-left: 4px; font-size: 10px; }
table.tbl thead th.sorted-asc .sort-ind,
table.tbl thead th.sorted-desc .sort-ind { color: var(--primary); }
table.tbl tbody td {
  padding: 9px 12px;
  border-bottom: 1px solid rgba(29, 41, 66, 0.6);
  white-space: nowrap;
}
table.tbl tbody tr:hover { background: rgba(37, 212, 242, 0.04); }
table.tbl tbody td.up { color: var(--up); font-weight: 600; }
table.tbl tbody td.down { color: var(--down); font-weight: 600; }
table.tbl tbody td.flat { color: var(--text-dim); }

/* States */
.state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
  font-size: 14px;
}
.state.error { color: var(--up); }
.state code {
  display: inline-block;
  background: rgba(255, 77, 109, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(255, 77, 109, 0.3);
  font-size: 12px;
}

/* Scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #1d2942; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #2a3a5a; }
::-webkit-scrollbar-track { background: transparent; }

/* Responsive */
@media (max-width: 800px) {
  #app { grid-template-columns: 64px 1fr; }
  .brand-text, .nav-group-title, .nav-item span:not(.ic), .sidebar-foot span:not(.dot) { display: none; }
  .nav-item { justify-content: center; padding: 10px 0; }
}