:root {
  --ink: #0f172a;
  --body: #64748b;
  --muted: #94a3b8;
  --line: #e2e8f0;
  --brand: #06b6d4;
  --coral: #fe2c55;
  --panel: #fff;
  --side: #0f172a;
  --bg: #f8fafc;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
.hidden { display: none !important; }
.gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}
.wb-shell { display: flex; min-height: 100vh; }
.wb-side {
  width: 220px;
  background: var(--side);
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
  flex-shrink: 0;
}
.wb-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  padding: 8px 8px 18px;
}
.wb-logo .mark {
  display: grid; place-items: center;
  width: 28px; height: 28px; border-radius: 8px;
  background: rgb(6 182 212 / 0.25); color: #67e8f9; font-weight: 900; font-size: 12px;
}
.wb-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.wb-nav-item {
  border: 0;
  background: transparent;
  color: #94a3b8;
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13.5px;
}
.wb-nav-item:hover { background: rgba(255,255,255,.06); color: #e2e8f0; }
.wb-nav-item.active { background: var(--brand); color: #fff; font-weight: 600; }
.wb-side-foot { padding-top: 12px; border-top: 1px solid #334155; }
.wb-user { font-size: 12.5px; color: #94a3b8; margin-bottom: 8px; padding: 0 8px; }
.wb-link {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  color: #94a3b8;
  text-align: left;
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12.5px;
}
.wb-link:hover { color: #fff; background: rgba(255,255,255,.06); }
.wb-link.danger:hover { color: #fca5a5; }
.wb-main { flex: 1; min-width: 0; padding: 20px 24px 40px; }
.wb-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.wb-top h1 { margin: 0; font-size: 22px; font-weight: 700; }
.wb-top-link { color: var(--body); font-size: 13px; text-decoration: none; }
.wb-top-link:hover { color: var(--brand); }
.wb-panel { display: none; }
.wb-panel.active { display: block; }
.wb-lead { color: var(--body); font-size: 14px; line-height: 1.65; margin: 0 0 16px; }
.wb-kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.wb-kpi {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.wb-kpi span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.wb-kpi b { font-size: 22px; font-variant-numeric: tabular-nums; color: var(--brand); }
.wb-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  margin-bottom: 14px;
}
.wb-card h3 { margin: 0 0 10px; font-size: 15px; }
.wb-card ul, .wb-card ol { margin: 0; padding-left: 1.2em; color: var(--body); font-size: 13.5px; line-height: 1.7; }
.wb-toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.wb-toolbar input[type="search"] {
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  min-width: 200px;
}
.btn {
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 14px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
}
.btn.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
.btn.danger { color: var(--coral); border-color: #fecdd3; }
.wb-form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}
.wb-form-grid input, .wb-form-grid select {
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  font-size: 13.5px;
}
.wb-form-actions { display: flex; gap: 8px; }
.wb-err { color: var(--coral); font-size: 13px; min-height: 18px; margin: 8px 0 0; }
.wb-table-wrap {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: auto;
}
.wb-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.wb-table th, .wb-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid #f1f5f9;
  white-space: nowrap;
}
.wb-table th { color: var(--muted); font-weight: 600; background: #f8fafc; }
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: #ecfeff;
  color: #0891b2;
}
@media (max-width: 900px) {
  .wb-shell { flex-direction: column; }
  .wb-side { width: 100%; }
  .wb-kpis, .wb-form-grid { grid-template-columns: 1fr 1fr; }
}