:root {
  --bg: #f5f7fb;
  --panel: #fff;
  --ink: #162033;
  --muted: #687286;
  --line: #d8e0ea;
  --brand: #155a8a;
  --accent: #0b7a75;
  --bad: #b42318;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--bg); color: var(--ink); }
a { color: var(--brand); text-decoration: none; }
.topbar { background: var(--panel); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 1180px; margin: 0 auto; padding: 16px 28px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.brand { font-size: 20px; font-weight: 700; }
.nav { display: flex; gap: 14px; flex-wrap: wrap; }
.page { max-width: 1180px; margin: 0 auto; padding: 28px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 20px; margin-bottom: 18px; }
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.kpi { background: #eef6f8; border: 1px solid #c8e3e8; border-radius: 8px; padding: 16px; }
.kpi .label { color: var(--muted); font-size: 13px; }
.kpi .value { margin-top: 8px; font-size: 24px; font-weight: 700; }
label { display: block; margin: 12px 0 6px; font-weight: 700; }
input, select, button { font: inherit; border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; }
input, select { width: 100%; background: #fff; }
button, .button { display: inline-block; border: 0; background: var(--brand); color: #fff; font-weight: 700; cursor: pointer; }
.button.secondary { background: var(--accent); }
.row { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; }
.row > * { flex: 1 1 180px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border-bottom: 1px solid var(--line); padding: 10px; text-align: left; vertical-align: top; }
th { background: #eff4f8; font-size: 13px; }
.notice { padding: 12px 14px; border: 1px solid #abefc6; background: #ecfdf3; border-radius: 6px; margin-bottom: 14px; }
.error { color: var(--bad); background: #fef3f2; border: 1px solid #fecdca; padding: 12px 14px; border-radius: 6px; }
.muted { color: var(--muted); }
.auth-box { max-width: 420px; margin: 60px auto; }
.scroll { overflow-x: auto; }
@media (max-width: 760px) {
  .grid { grid-template-columns: 1fr; }
  .topbar-inner { align-items: flex-start; flex-direction: column; }
}