:root {
  --bg: #0b1220;
  --panel: #131c2e;
  --panel-2: #182338;
  --line: #253248;
  --text: #e6edf7;
  --muted: #8fa3bf;
  --accent: #37d0c0;
  --accent-2: #4c8dff;
  --danger: #ff6b6b;
  --warn: #ffb454;
  --ok: #45d483;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #12314a 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--accent); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-weight: 700; color: #05121a;
}
.brand h1 { font-size: 17px; margin: 0; letter-spacing: 1px; white-space: nowrap; }
.brand small { color: var(--muted); font-size: 11px; letter-spacing: 1px; display: block; margin-top: 2px; }

.top-actions { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }

.layout { display: flex; min-height: calc(100vh - 68px); }

.sidebar {
  width: 208px;
  padding: 16px 10px;
  border-right: 1px solid var(--line);
  background: rgba(19, 28, 46, 0.55);
}

.nav-item {
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
  transition: all .15s;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: linear-gradient(90deg, rgba(55, 208, 192, .18), transparent); color: var(--accent); border-left: 3px solid var(--accent); }
.nav-item em { font-style: normal; font-size: 11px; opacity: .55; }

main { flex: 1; padding: 20px 24px 60px; overflow: auto; }

.grid { display: grid; gap: 16px; }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  background: linear-gradient(180deg, var(--panel), rgba(19, 28, 46, .65));
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}

.card h3 { margin: 0 0 12px; font-size: 14px; font-weight: 600; color: var(--muted); letter-spacing: 1px; }

.kpi { font-size: 30px; font-weight: 700; letter-spacing: 1px; }
.kpi small { font-size: 12px; color: var(--muted); font-weight: 400; margin-left: 6px; }
.kpi.accent { color: var(--accent); }
.kpi.blue { color: var(--accent-2); }
.kpi.warn { color: var(--warn); }
.kpi.danger { color: var(--danger); }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }

button, .btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
}
button:hover { border-color: var(--accent); color: var(--accent); }
button.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #04121a; border: none; font-weight: 600; }
button.danger { border-color: rgba(255, 107, 107, .5); color: var(--danger); }
button:disabled { opacity: .45; cursor: not-allowed; }

input, select, textarea {
  background: #0e1728;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  min-width: 0;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
label { font-size: 12px; color: var(--muted); display: block; margin-bottom: 4px; }
.field { margin-bottom: 10px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; font-size: 12px; letter-spacing: .5px; }
tbody tr:hover { background: rgba(55, 208, 192, .05); }
td.num { font-variant-numeric: tabular-nums; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--line); color: var(--muted); }
.tag.ok { color: var(--ok); border-color: rgba(69, 212, 131, .4); background: rgba(69, 212, 131, .08); }
.tag.warn { color: var(--warn); border-color: rgba(255, 180, 84, .4); background: rgba(255, 180, 84, .08); }
.tag.danger { color: var(--danger); border-color: rgba(255, 107, 107, .4); background: rgba(255, 107, 107, .08); }
.tag.info { color: var(--accent-2); border-color: rgba(76, 141, 255, .4); background: rgba(76, 141, 255, .08); }

.empty { color: var(--muted); font-size: 13px; padding: 26px 4px; text-align: center; }

.bars { display: flex; align-items: flex-end; gap: 10px; height: 170px; padding-top: 10px; }
.bar-wrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.bar-group { display: flex; gap: 3px; align-items: flex-end; width: 100%; justify-content: center; height: 100%; }
.bar { width: 42%; border-radius: 4px 4px 0 0; min-height: 2px; background: linear-gradient(180deg, var(--accent), rgba(55, 208, 192, .25)); }
.bar.out { background: linear-gradient(180deg, var(--accent-2), rgba(76, 141, 255, .22)); }
.bar-label { font-size: 11px; color: var(--muted); }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: 380px;
  background: linear-gradient(180deg, var(--panel), #0e1728);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 30px 28px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
}
.login-card h2 { margin: 12px 0 4px; font-size: 19px; }
.login-card p { color: var(--muted); font-size: 12px; margin: 0 0 22px; line-height: 1.7; }
.login-card input { width: 100%; }
.hint { color: var(--muted); font-size: 11px; margin-top: 14px; line-height: 1.7; }

.icp-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  padding: 8px 12px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--muted);
  background: rgba(11, 18, 32, .72);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.toast {
  position: fixed;
  right: 24px; bottom: 56px;
  background: #16233a;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 13px;
  max-width: 420px;
  opacity: 0;
  transform: translateY(10px);
  transition: all .2s;
  z-index: 50;
  white-space: pre-wrap;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.error { border-left-color: var(--danger); }

.modal-mask {
  position: fixed; inset: 0; background: rgba(4, 9, 18, .72);
  display: none; place-items: center; z-index: 40; padding: 24px;
}
.modal-mask.show { display: grid; }
.modal {
  width: 520px; max-height: 84vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 22px;
}
.modal h3 { color: var(--text); font-size: 16px; margin: 0 0 16px; letter-spacing: 0; }

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }
.mono { font-family: Consolas, "Courier New", monospace; font-size: 12px; }
.muted { color: var(--muted); }
.right { text-align: right; }
.scroll-x { overflow-x: auto; }

.canvas-box { display: grid; place-items: center; background: #fff; border-radius: 10px; padding: 10px; margin-top: 10px; }
canvas { image-rendering: pixelated; max-width: 100%; }

@media (max-width: 1100px) {
  .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .sidebar { width: 160px; }
}