:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;
  --series-1-soft: #9ec5f4;
  --good: #006300;
  --critical: #d03b3b;
  /* paleta statusów — stała, nie podlega motywom */
  --status-good: #0ca30c;
  --status-warning: #fab219;
  --status-serious: #ec835a;
  --status-critical: #d03b3b;
  --status-neutral: #898781;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-1-soft: #256abf;
    --good: #0ca30c;
    --critical: #d03b3b;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--page);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

/* ---------- logowanie ---------- */
.login-wrap {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 16px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  width: 100%;
  max-width: 360px;
}
.login-card h1 { font-size: 20px; margin: 0 0 4px; }
.login-card p.sub { color: var(--ink-2); margin: 0 0 20px; font-size: 13px; }
.login-card label { display: block; font-size: 13px; color: var(--ink-2); margin: 12px 0 4px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--baseline);
  border-radius: 8px;
  background: var(--page);
  color: var(--ink);
  font-size: 15px;
}
.login-card button {
  width: 100%;
  margin-top: 20px;
  padding: 11px;
  border: 0;
  border-radius: 8px;
  background: var(--series-1);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.login-error { color: var(--critical); font-size: 13px; margin-top: 12px; display: none; }

/* ---------- panel ---------- */
header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}
header.topbar h1 { font-size: 17px; margin: 0; }
header.topbar .meta { color: var(--muted); font-size: 12.5px; }
header.topbar button {
  border: 1px solid var(--baseline);
  background: transparent;
  color: var(--ink-2);
  border-radius: 8px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
}

main { max-width: 1400px; margin: 0 auto; padding: 16px 12px 60px; }
@media (min-width: 700px) {
  main { padding: 20px 16px 60px; }
}

/* ---------- hero: najważniejsze liczby ---------- */
.hero {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 6px;
}
@media (min-width: 700px) {
  .hero { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
}
.hero-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  min-width: 0;
}
.hero-tile.big { grid-column: span 2; }
@media (min-width: 700px) { .hero-tile.big { grid-column: span 1; } }
.hero-label { font-size: 12.5px; color: var(--ink-2); margin-bottom: 4px; }
.hero-value {
  font-size: clamp(19px, 6vw, 30px);
  font-weight: 650;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.hero-tile.big .hero-value { font-size: clamp(26px, 9vw, 40px); }
@media (min-width: 700px) {
  .hero-value { font-size: 26px; }
  .hero-tile.big .hero-value { font-size: 30px; }
}
@media (min-width: 1000px) {
  .hero-value { font-size: 30px; }
  .hero-tile.big .hero-value { font-size: 34px; }
}
.hero-value.na { color: var(--muted); font-size: 16px; font-weight: 400; }
.hero-sub { font-size: 12.5px; color: var(--muted); margin-top: 4px; }

/* ---------- kondycja firmy: chipy statusów ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px 7px 10px;
  font-size: 13px;
}
.chip-dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.chip.good .chip-dot { background: var(--status-good); }
.chip.warning .chip-dot { background: var(--status-warning); }
.chip.serious .chip-dot { background: var(--status-serious); }
.chip.critical .chip-dot { background: var(--status-critical); }
.chip.neutral .chip-dot { background: var(--status-neutral); }
.chip-name { font-weight: 600; }
.chip-state { color: var(--ink-2); }

/* ---------- wymaga uwagi: alerty ---------- */
.alerts { display: grid; gap: 8px; }
.alert {
  display: flex;
  gap: 10px;
  align-items: baseline;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13.5px;
}
.alert.warning { border-left-color: var(--status-warning); }
.alert.serious { border-left-color: var(--status-serious); }
.alert.critical { border-left-color: var(--status-critical); }
.alert-icon { font-weight: 700; flex: 0 0 auto; }
.alert.warning .alert-icon { color: var(--status-warning); }
.alert.serious .alert-icon { color: var(--status-serious); }
.alert.critical .alert-icon { color: var(--status-critical); }

/* ---------- sekcja techniczna (zwijana) ---------- */
details.tech { margin-top: 36px; }
details.tech summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 4px;
  user-select: none;
}
details.tech .grid { margin-top: 10px; }

.group-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 28px 4px 10px;
}
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 700px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card.wide, .card.full { grid-column: span 2; }
}
@media (min-width: 1100px) {
  .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .card.wide { grid-column: span 2; }
  .card.full { grid-column: span 4; }
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  min-width: 0;
}
.card h3 { margin: 0 0 6px; font-size: 13.5px; font-weight: 500; color: var(--ink-2); }
.tile-value { font-size: 30px; font-weight: 650; letter-spacing: -0.01em; }
.tile-value.na { color: var(--muted); font-size: 16px; font-weight: 400; }
.card .err { color: var(--critical); font-size: 12.5px; }

.chart-box { position: relative; }
.chart-box svg { display: block; width: 100%; height: auto; }
.tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12.5px;
  display: none;
  white-space: nowrap;
  z-index: 5;
}
.tooltip .t-label { color: var(--ink-2); }
.tooltip .t-value { font-weight: 600; }

.table-scroll { overflow-x: auto; }
table.data {
  border-collapse: collapse;
  width: 100%;
  font-size: 13.5px;
}
table.data th {
  text-align: left;
  color: var(--muted);
  font-weight: 500;
  border-bottom: 1px solid var(--grid);
  padding: 6px 10px;
  white-space: nowrap;
}
table.data td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--grid);
  white-space: nowrap;
}
table.data td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data td.neg { color: var(--critical); }

.empty-state {
  text-align: center;
  color: var(--ink-2);
  padding: 80px 20px;
}