:root {
  color-scheme: light;
  --surface-1: #fcfcfb;
  --page: #f9f9f7;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-blue: #2a78d6;
  --series-orange: #eb6834;
  --series-green: #008300;
  --series-red: #e34948;
  --good: #0ca30c;
  --critical: #d03b3b;
  --card-shadow: 0 1px 2px rgba(11, 11, 11, 0.06), 0 1px 1px rgba(11, 11, 11, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --surface-1: #1a1a19;
    --page: #0d0d0d;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-blue: #3987e5;
    --series-orange: #d95926;
    --series-green: #008300;
    --series-red: #e66767;
    --good: #0ca30c;
    --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--series-blue); }

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.topbar h1 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0;
}

.topbar .sub {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 2px;
}

.session {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.session a { color: var(--text-secondary); text-decoration: underline; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { border-color: var(--series-blue); }

.btn-primary {
  background: var(--series-blue);
  border-color: var(--series-blue);
  color: #fff;
}

.btn-danger {
  background: transparent;
  border-color: var(--critical);
  color: var(--critical);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  padding: 12px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.filters .preset {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid transparent;
}

.filters .preset:hover { background: var(--page); }

.filters .preset.active {
  background: var(--series-blue);
  color: #fff;
}

.filters form.custom-range {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.filters input[type="date"] {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
  background: var(--surface-1);
  color: var(--text-primary);
  font-size: 0.8125rem;
}

.filters .origin-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.origin-filters form {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.origin-check {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.origin-check:hover { border-color: var(--series-blue); }

.origin-check input[type="checkbox"] {
  accent-color: var(--series-blue);
  margin: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}

@media (max-width: 860px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--card-shadow);
}

.card .label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 8px;
}

.card .value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: proportional-nums;
}

.card .sub {
  margin-top: 6px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.panel {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
}

.panel h2 {
  font-size: 1rem;
  margin: 0 0 4px;
}

.panel .panel-sub {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0 0 16px;
}

.funnel-row {
  display: grid;
  grid-template-columns: 140px 1fr 70px;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 0.875rem;
}

.funnel-row .fname { color: var(--text-secondary); font-weight: 600; }

.funnel-row .ftrack {
  background: var(--gridline);
  border-radius: 4px;
  height: 22px;
  position: relative;
  overflow: hidden;
}

.funnel-row .fbar {
  height: 100%;
  border-radius: 4px 0 0 4px;
}

.funnel-row .fval {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.legend {
  display: flex;
  gap: 18px;
  margin-bottom: 12px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.legend .dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 6px;
}

.chart-wrap { overflow-x: auto; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

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

table.data th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

table.data td.num { font-variant-numeric: tabular-nums; text-align: right; }
table.data .row-actions { display: flex; gap: 8px; justify-content: flex-end; }

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  box-shadow: var(--card-shadow);
}

.auth-card h1 {
  font-size: 1.15rem;
  margin: 0 0 4px;
}

.auth-card .sub {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0 0 24px;
}

.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--page);
  color: var(--text-primary);
  font-size: 0.9375rem;
}

.field input:focus {
  outline: none;
  border-color: var(--series-blue);
}

.error {
  background: rgba(208, 59, 59, 0.10);
  color: var(--critical);
  border: 1px solid rgba(208, 59, 59, 0.3);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.8125rem;
  margin-bottom: 16px;
}

.success {
  background: rgba(12, 163, 12, 0.10);
  color: var(--good);
  border: 1px solid rgba(12, 163, 12, 0.3);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.8125rem;
  margin-bottom: 16px;
}

.form-inline {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 20px;
}

.form-inline .field { margin-bottom: 0; min-width: 200px; }

.hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

footer.note {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 8px;
}