/* Dashboard LAB — mobile-first, thème clair/sombre (palette dataviz validée). */
:root {
  --surface: #fcfcfb;
  --card: #f1f1ee;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --line: #d8d7d2;
  --accent: #2a78d6;
  --ok: #008300;
  --warn: #eda100;
  --crit: #e34948;
}
@media (prefers-color-scheme: dark) {
  :root {
    --surface: #1a1a19;
    --card: #242423;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --line: #3a3a38;
    --accent: #3987e5;
    --ok: #33a02c;
    --warn: #c98500;
    --crit: #e66767;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--surface); color: var(--ink);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.hidden { display: none !important; }
.muted { color: var(--ink-2); }
.small { font-size: 12px; }
h2 { font-size: 14px; text-transform: uppercase; letter-spacing: .04em;
     color: var(--ink-2); margin: 20px 0 8px; }

/* --- auth --- */
.auth-view { display: flex; min-height: 100vh; align-items: center; justify-content: center; padding: 16px; }
.auth-card { width: 100%; max-width: 360px; background: var(--card);
  border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.auth-card h1 { margin: 0 0 4px; font-size: 22px; }
.auth-card p { margin: 0 0 16px; }
.auth-card label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--ink-2); }
.auth-card input {
  display: block; width: 100%; margin-top: 4px; padding: 10px;
  font-size: 16px; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: 8px;
}
.auth-card button {
  width: 100%; padding: 12px; margin-top: 4px; font-size: 15px; font-weight: 600;
  color: #fff; background: var(--accent); border: 0; border-radius: 8px; cursor: pointer;
}
.err { color: var(--crit); font-size: 13px; min-height: 1.2em; margin: 10px 0 0; }

/* --- layout dashboard --- */
main { max-width: 760px; margin: 0 auto; padding: 0 12px 40px; }
.topbar { display: flex; align-items: center; gap: 10px; padding: 12px 0; }
.brand { font-weight: 700; font-size: 17px; margin-right: auto; }
.topbar button {
  background: var(--card); color: var(--ink); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 12px; font-size: 16px; cursor: pointer;
}
.tabs { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 8px;
  border-bottom: 1px solid var(--line); }
.tabs button {
  background: none; border: 0; border-radius: 8px 8px 0 0; padding: 8px 14px;
  font-size: 14px; color: var(--ink-2); cursor: pointer; white-space: nowrap;
}
.tabs button.active { color: var(--ink); font-weight: 600;
  border-bottom: 2px solid var(--accent); }
.badge { background: var(--crit); color: #fff; border-radius: 10px;
  padding: 1px 7px; font-size: 11px; margin-left: 4px; }

/* --- cards / tiles --- */
.cards { display: flex; flex-direction: column; gap: 8px; }
.card { background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 14px; }
.card .title { font-weight: 600; }
.card .sub { font-size: 12.5px; color: var(--ink-2); margin-top: 2px; }
.card.level-ok { border-left: 4px solid var(--ok); }
.card.level-warning, .card.level-warn { border-left: 4px solid var(--warn); }
.card.level-critical, .card.level-crit { border-left: 4px solid var(--crit); }
.card.level-info { border-left: 4px solid var(--accent); }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px; margin-top: 12px; }
.tile { background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 12px; }
.tile .k { font-size: 12px; color: var(--ink-2); }
.tile .v { font-size: 19px; font-weight: 700; margin-top: 2px; }
.tile .v.pos { color: var(--ok); }
.tile .v.neg { color: var(--crit); }

.chartbox { position: relative; height: 240px; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px; padding: 8px; }
.filter-row { display: flex; gap: 12px; margin-top: 12px; font-size: 13px;
  color: var(--ink-2); align-items: center; }
.filter-row select { background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; font-size: 14px; }
footer { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 10px; }