:root {
  color-scheme: light;
  --surface-1:      #fcfcfb;
  --page:           #f9f9f7;
  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --text-muted:     #898781;
  --grid:           #e1e0d9;
  --baseline:       #c3c2b7;
  --border:         rgba(11,11,11,0.10);
  --good:           #006300;
  --bad:            #d03b3b;

  --series-1: #2a78d6; /* niebieski   - przychod / BMW-rata */
  --series-2: #eb6834; /* pomaranczowy- wydatek / jedzenie */
  --series-3: #1baf7a; /* akwa        - transfery/inwestycje */
  --series-4: #eda100; /* zolty       - mieszkanie */
  --series-5: #e87ba4; /* magenta     - rozrywka */
  --series-6: #008300; /* zielony     - zdrowie */
  --series-7: #4a3aa7; /* fiolet      - inne */
  --series-8: #e34948; /* czerwony    - BMW serwis */
  --series-other: #c3c2b7;

  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --surface-1:      #1a1a19;
    --page:           #0d0d0d;
    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted:     #898781;
    --grid:           #2c2c2a;
    --baseline:       #383835;
    --border:         rgba(255,255,255,0.10);
    --good:           #0ca30c;
    --bad:            #e66767;

    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;
    --series-other: #383835;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-1:      #1a1a19;
  --page:           #0d0d0d;
  --text-primary:   #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted:     #898781;
  --grid:           #2c2c2a;
  --baseline:       #383835;
  --border:         rgba(255,255,255,0.10);
  --good:           #0ca30c;
  --bad:            #e66767;

  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --series-7: #9085e9;
  --series-8: #e66767;
  --series-other: #383835;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
h1, h2, h3 { font-weight: 600; margin: 0 0 4px; }
.muted { color: var(--text-secondary); }
a { color: var(--series-1); }

/* --- login --- */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; }
.login-card {
  width: 100%; max-width: 380px;
  background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px;
}
.login-card form { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.login-card label { font-size: 13px; color: var(--text-secondary); }
.login-card input {
  padding: 12px; font-size: 16px; border-radius: 8px;
  border: 1px solid var(--baseline); background: var(--page); color: var(--text-primary);
}
.login-card button {
  padding: 12px; font-size: 15px; font-weight: 600; border: none; border-radius: 8px;
  background: var(--series-1); color: #fff; cursor: pointer;
}
.login-card button:disabled { opacity: 0.6; cursor: default; }
.status { margin-top: 14px; font-size: 14px; min-height: 20px; }
.status-ok { color: var(--good); }
.status-error { color: var(--bad); }

/* --- dashboard shell --- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--surface-1); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1 { font-size: 18px; }
.logout-btn {
  background: none; border: 1px solid var(--baseline); color: var(--text-secondary);
  border-radius: 6px; padding: 6px 12px; font-size: 13px; cursor: pointer;
}

main.dashboard { max-width: 1100px; margin: 0 auto; padding: 20px 16px 60px; display: flex; flex-direction: column; gap: 28px; }

/* --- month ribbon --- */
.ribbon-wrap { overflow-x: auto; padding-bottom: 4px; }
.ribbon { display: flex; gap: 6px; min-width: max-content; }
.ribbon-chip {
  flex: 0 0 auto; min-width: 64px; padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface-1); cursor: pointer;
  text-align: center; font-size: 12px; color: var(--text-secondary);
}
.ribbon-chip .m { font-weight: 600; color: var(--text-primary); display: block; margin-bottom: 2px; }
.ribbon-chip .v { font-variant-numeric: tabular-nums; }
.ribbon-chip.up .v { color: var(--good); }
.ribbon-chip.down .v { color: var(--bad); }
.ribbon-chip.active { border-color: var(--series-1); border-width: 2px; }

/* --- KPI cards --- */
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.kpi-card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px;
}
.kpi-card .label { font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.kpi-card .value { font-size: 26px; font-weight: 600; font-variant-numeric: tabular-nums; }
.kpi-card .value.up { color: var(--good); }
.kpi-card .value.down { color: var(--bad); }
.kpi-card .hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* --- chart panels --- */
.panel {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px;
}
.panel h2 { font-size: 15px; margin-bottom: 2px; }
.panel .panel-sub { font-size: 12px; color: var(--text-muted); margin-bottom: 14px; }
.panel canvas { max-height: 320px; }
.panel-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 760px) {
  .panel-grid.two-col { grid-template-columns: 1fr 1fr; }
}

.legend-row { display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 10px; font-size: 12px; color: var(--text-secondary); }
.legend-row .item { display: flex; align-items: center; gap: 6px; }
.legend-row .dot { width: 10px; height: 10px; border-radius: 2px; flex: 0 0 auto; }

.table-view { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 10px; }
.table-view th, .table-view td { text-align: right; padding: 6px 8px; border-bottom: 1px solid var(--grid); }
.table-view th:first-child, .table-view td:first-child { text-align: left; }
.table-view th { color: var(--text-muted); font-weight: 500; }

.empty-state { color: var(--text-muted); font-size: 13px; padding: 20px 0; text-align: center; }
.loading { color: var(--text-muted); font-size: 13px; padding: 40px 0; text-align: center; }

/* --- alternatywna metoda logowania --- */
.alt-auth { margin-top: 16px; font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.link-btn {
  background: none; border: none; padding: 0; font-size: 13px; font-family: inherit;
  color: var(--series-1); text-decoration: underline; cursor: pointer;
}
.link-btn:disabled { opacity: 0.5; cursor: default; }
.hint-inline { color: var(--text-muted); font-size: 12px; }