:root {
  --bg: #f2f5fb;
  --card: #ffffff;
  --text: #172235;
  --muted: #66778f;
  --line: #d8e1ef;
  --accent: #2454a6;
  --accent-2: #3a74db;
  --good: #0f8b5f;
  --warn: #a66d00;
  --bad: #b42318;
  --shadow: 0 18px 40px rgba(26,45,78,.08);
  --radius: 18px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
  background: linear-gradient(180deg, #edf3ff 0%, #f8fbff 30%, var(--bg) 100%);
  color: var(--text);
}
.hidden { display: none !important; }
.screen { width: min(1500px, calc(100vw - 32px)); margin: 24px auto; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.auth-card { max-width: 680px; padding: 28px; }
.brand-block h1, .topbar h2 { margin: 6px 0 6px; font-size: 34px; }
.eyebrow { color: var(--accent); font-weight: 700; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }
.muted, .mini-note, .message { color: var(--muted); }
.auth-tabs, .nav-tabs { display: flex; gap: 10px; flex-wrap: wrap; }
.topbar, .nav-tabs { padding: 18px 22px; margin-bottom: 14px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.topbar-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
button {
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: .18s ease;
  box-shadow: 0 4px 10px rgba(0,0,0,.04);
}
button:hover { transform: translateY(-1px); }
.primary-btn { background: linear-gradient(180deg, var(--accent-2), var(--accent)); color: #fff; }
.secondary-btn, .tab-btn { background: #fff; color: var(--text); border-color: var(--line); }
.danger-btn { background: #fff0ef; color: var(--bad); border-color: #f6c6c2; }
.tab-btn.active { background: #eef4ff; color: var(--accent); border-color: #bfd1f1; }
.auth-form, .panel { display: none; }
.auth-form.active, .panel.active { display: block; }
.auth-form { margin-top: 16px; }
label { display: grid; gap: 8px; color: var(--muted); font-size: 14px; font-weight: 600; }
input, select {
  width: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 11px 12px;
  color: var(--text);
  font: inherit;
}
.form-grid, .filters-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 14px;
}
.filters-grid { padding: 18px 22px; margin-bottom: 14px; }
.form-card { padding: 20px; margin-bottom: 14px; }
.full { grid-column: 1 / -1; }
.form-actions { display: flex; gap: 10px; margin-top: 6px; }
.form-actions.wrap { flex-wrap: wrap; }
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}
.kpi-card { padding: 18px 20px; }
.kpi-title { color: var(--muted); font-weight: 700; font-size: 13px; }
.kpi-value { font-size: 28px; font-weight: 800; margin: 8px 0 6px; }
.kpi-sub { color: var(--muted); font-size: 13px; }
.split-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 14px;
}
.split-grid > .card { padding: 20px; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 16px; }
.table-wrap.tall { max-height: 520px; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 12px 14px; border-bottom: 1px solid #edf1f7; text-align: left; }
thead th { background: #f7faff; position: sticky; top: 0; z-index: 1; }
tbody tr:nth-child(even) { background: #fbfdff; }
.rich-text { white-space: pre-wrap; line-height: 1.5; }
.mini-stats { display: grid; gap: 8px; color: var(--muted); line-height: 1.5; margin-bottom: 14px; }
.toast {
  position: fixed; right: 20px; bottom: 20px; max-width: 420px;
  background: #15233d; color: #fff; padding: 14px 16px; border-radius: 14px; box-shadow: var(--shadow);
}
canvas { width: 100%; background: linear-gradient(180deg, #fbfdff 0%, #f7faff 100%); border-radius: 16px; border: 1px solid var(--line); }
@media (max-width: 1100px) {
  .kpi-grid, .split-grid, .form-grid, .filters-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .screen { width: calc(100vw - 18px); margin: 9px auto; }
  .topbar { flex-direction: column; align-items: stretch; }
  .kpi-grid, .split-grid, .form-grid, .filters-grid { grid-template-columns: 1fr; }
}