:root {
  --bg: #0f1216;
  --surface: #161b22;
  --surface-2: #1c232d;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --muted: #8b93a7;
  --accent: #4ea1ff;
  --pos: #3fb950;
  --neg: #f4574e;
  --warn: #d29922;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); border: 0;
}

/* ---------- topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1 { font-size: 18px; margin: 0; }

.btn-ghost {
  color: var(--muted); text-decoration: none;
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 12px; font-size: 14px;
}
.btn-ghost:hover { color: var(--text); border-color: var(--accent); }

.wrap { max-width: 1000px; margin: 0 auto; padding: 16px; }

/* ---------- banners ---------- */
.banner {
  border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px;
  border: 1px solid var(--border);
}
.banner.warn { background: rgba(210, 153, 34, 0.12); border-color: var(--warn); }
.banner.err  { background: rgba(244, 87, 78, 0.12);  border-color: var(--neg); }
.banner code { background: var(--surface-2); padding: 1px 6px; border-radius: 4px; }

/* ---------- KPI ---------- */
.kpi-grid {
  display: grid; gap: 12px; margin-bottom: 16px;
  grid-template-columns: repeat(2, 1fr);
}
.kpi {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px; display: flex; flex-direction: column;
}
.kpi-l { color: var(--muted); font-size: 13px; }
.kpi-v { font-size: 22px; font-weight: 700; margin-top: 4px; }
.kpi-n { color: var(--muted); font-size: 12px; margin-top: 2px; }

.pos { color: var(--pos); }
.neg { color: var(--neg); }
.zero { color: var(--text); }

/* ---------- cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 16px;
}
.card h2 { font-size: 15px; margin: 0 0 12px; color: var(--muted); font-weight: 600; }

/* ---------- conti ---------- */
.conti { display: grid; gap: 10px; grid-template-columns: repeat(2, 1fr); }
.conto {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px; display: flex; flex-direction: column; gap: 4px;
}
.conto.off { opacity: 0.5; }
.conto-n { font-size: 13px; color: var(--muted); }
.conto-s { font-size: 18px; font-weight: 700; }

/* ---------- chart ---------- */
canvas { width: 100% !important; }

/* ---------- filters ---------- */
.filters {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin-bottom: 14px;
}
.filters label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.filters select, .filters button, input[type=password] {
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 12px; font-size: 14px;
}
.filters select:focus, .filters button:focus, input:focus {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
button {
  background: var(--accent); color: #04101f; border: none; border-radius: 8px;
  padding: 10px 18px; font-size: 14px; font-weight: 600; cursor: pointer;
}
button:hover { filter: brightness(1.08); }

/* ---------- table ---------- */
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
td.r, th.r { text-align: right; }
td.nowrap { white-space: nowrap; }
td small { display: block; color: var(--muted); font-size: 12px; }
td.evt { max-width: 280px; }
.muted { color: var(--muted); }

.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; white-space: nowrap; }
.b-open { background: rgba(78, 161, 255, 0.16); color: var(--accent); }
.b-win  { background: rgba(63, 185, 80, 0.16);  color: var(--pos); }
.b-bad  { background: rgba(244, 87, 78, 0.16);  color: var(--neg); }
.b-mut  { background: var(--surface-2); color: var(--muted); }

/* ---------- login ---------- */
.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px; width: min(360px, 90vw); text-align: center;
}
.login-logo { font-size: 28px; margin: 0; }
.login-sub { color: var(--muted); margin: 4px 0 24px; }
.login-card form { display: flex; flex-direction: column; gap: 12px; }
.login-card input { width: 100%; text-align: center; }
.login-err { color: var(--neg); font-size: 14px; margin: 4px 0 0; }

/* ---------- desktop ---------- */
@media (min-width: 720px) {
  .kpi-grid { grid-template-columns: repeat(5, 1fr); }
  .conti { grid-template-columns: repeat(4, 1fr); }
}