:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --ink: #1d2127;
  --muted: #6b7480;
  --line: #e3e6ea;
  --accent: #b85c00;
  --green: #1f7a35;
  --red: #c2362f;
  --download: #4a6cf7;
  --upload: #b85c00;
  --grid-axis: #d4d8dd;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif; font-size: 14px; line-height: 1.5; }
body.centered { display: flex; align-items: center; justify-content: center; min-height: 100vh; }

a { color: inherit; text-decoration: none; border-bottom: 1px dotted var(--muted); }
a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 14px 24px; background: var(--panel); border-bottom: 1px solid var(--line);
}
.topbar .brand { font-weight: 700; letter-spacing: 0.04em; font-size: 16px; border: none; }
.topbar nav { display: flex; gap: 18px; flex: 1; }
.topbar nav a { border: none; color: var(--muted); font-weight: 500; }
.topbar nav a:hover { color: var(--accent); }
.topbar .user { display: flex; gap: 10px; align-items: center; font-size: 12px; }
.topbar .zone {
  background: var(--ink); color: var(--bg); padding: 2px 8px; border-radius: 3px;
  text-transform: uppercase; letter-spacing: 0.04em; font-size: 10px; font-weight: 600;
}

main { padding: 24px; max-width: 1200px; margin: 0 auto; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 18px 20px; margin-bottom: 18px; }
.card h1, .card h2 { margin: 0 0 12px; font-size: 16px; letter-spacing: 0.01em; }
.card h1 { font-size: 18px; }

.muted { color: var(--muted); }
.error { background: #fef2f1; color: var(--red); border: 1px solid #f5c2bf; padding: 8px 12px; border-radius: 4px; margin-bottom: 12px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat .label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.stat .value { font-size: 24px; font-weight: 600; margin-top: 4px; font-variant-numeric: tabular-nums; }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 7px 10px 7px 0; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; }
tr:last-child td { border-bottom: none; }
td.n, th.n { text-align: right; }

.login { max-width: 320px; width: 100%; }
.login h1 { margin: 0 0 4px; font-size: 22px; }
.login p { margin: 0 0 18px; }
.login form { display: grid; gap: 12px; }
.login label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.login input { padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; font-size: 14px; background: var(--bg); font-family: inherit; }
.login input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.login button { padding: 9px 12px; background: var(--ink); color: var(--bg); border: none; border-radius: 4px; cursor: pointer; font-weight: 500; font-family: inherit; font-size: 13px; letter-spacing: 0.02em; }
.login button:hover { background: var(--accent); }
button.link { background: none; border: none; color: var(--muted); cursor: pointer; font-family: inherit; font-size: 12px; padding: 0; border-bottom: 1px dotted var(--muted); }
button.link:hover { color: var(--accent); border-bottom-color: var(--accent); }

.toolbar { display: flex; gap: 8px; margin-bottom: 12px; }
.toolbar input[type=search] { flex: 1; padding: 7px 10px; border: 1px solid var(--line); border-radius: 4px; font-family: inherit; font-size: 13px; }
.toolbar button { padding: 7px 14px; border: 1px solid var(--line); background: var(--panel); border-radius: 4px; cursor: pointer; font-family: inherit; }

.bucket-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; }
.bucket-head h1 { margin-bottom: 4px; }
.bucket-head .actions a { margin-left: 12px; }

.rangepicker { display: flex; gap: 0; margin: 12px 0 18px; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; width: fit-content; }
.rangepicker a { padding: 6px 12px; border: none; color: var(--muted); border-right: 1px solid var(--line); font-size: 12px; }
.rangepicker a:last-child { border-right: none; }
.rangepicker a.active { background: var(--ink); color: var(--bg); }
.rangepicker a:hover:not(.active) { background: var(--bg); color: var(--ink); }

.totals { display: flex; gap: 28px; margin: 8px 0 16px; }
.totals .label { font-size: 11px; text-transform: uppercase; color: var(--muted); letter-spacing: 0.04em; }
.totals .value { font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }
.totals > div { display: flex; flex-direction: column; gap: 2px; }

.chart { margin: 12px 0; }
.chart svg { width: 100%; height: 280px; display: block; }

.series { margin-top: 18px; }
.series tbody tr:hover { background: var(--bg); }