:root {
  --ink: #111111;
  --paper: #f7f5f2;
  --panel: #ffffff;
  --line: #ddd8d0;
  --positive: #46603c;
  --negative: #8a3324;
  --muted: #6b6b66;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

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

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 40px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.brand {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-links a {
  margin-left: 28px;
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid transparent;
}

.nav-links a:hover { border-bottom-color: var(--ink); }

.nav-links { display: flex; align-items: center; }

.logout-form { display: inline; margin: 0 0 0 28px; }

.logout-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid transparent;
}

.logout-btn:hover { border-bottom-color: var(--ink); }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px;
}

h1, h2, h3 {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  margin: 0 0 20px;
}

h1 { font-size: 20px; }
h2 { font-size: 15px; color: var(--muted); }

.label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: var(--muted);
}

.tabular { font-variant-numeric: tabular-nums; }

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 32px;
}

.kpi-tile {
  background: var(--panel);
  padding: 24px;
}

.kpi-value {
  font-size: 32px;
  font-weight: 700;
}

.kpi-delta { font-size: 13px; margin-top: 6px; }
.delta-positive { color: var(--positive); }
.delta-negative { color: var(--negative); }
.delta-new { color: var(--muted); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 24px;
  margin-bottom: 32px;
}

table { width: 100%; border-collapse: collapse; }

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
}

th {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
}

td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-end;
}

.filters label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 4px;
}

.filters select, .filters input {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 8px;
  font-size: 13px;
  min-width: 160px;
}

.select-all {
  display: inline-block;
  margin-top: 6px;
  margin-right: 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-decoration: underline;
}

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: 10px 20px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  cursor: pointer;
  text-decoration: none;
}

.btn.secondary { background: transparent; color: var(--ink); }

.bar-chart-day {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 140px;
  border-bottom: 1px solid var(--line);
}

.bar-chart-day .bar {
  flex: 1;
  background: var(--ink);
  min-height: 1px;
}

.wow-row { margin-bottom: 12px; }
.wow-row .wow-label { font-size: 12px; margin-bottom: 4px; display: flex; justify-content: space-between; }
.wow-bar-track { display: flex; flex-direction: column; gap: 3px; }
.wow-bar { height: 8px; background: var(--line); }
.wow-bar.current { background: var(--ink); }

.messages { list-style: none; padding: 0; margin: 0 0 20px; }
.messages li { padding: 10px 14px; border: 1px solid var(--line); margin-bottom: 8px; font-size: 13px; }
.messages .error { border-color: var(--negative); color: var(--negative); }
.messages .success { border-color: var(--positive); color: var(--positive); }

.error-table td { font-size: 12px; }

.login-box {
  max-width: 360px;
  margin: 80px auto;
  padding: 32px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.login-box input {
  width: 100%;
  padding: 10px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
}