:root {
  --bg: #0d1117;
  --panel: #161b22;
  --card: #1c2230;
  --border: #2a3240;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --yellow: #d29922;
  --red: #f85149;
  --purple: #bc8cff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
}

/* ---------- Login ---------- */
.login-body {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
}
.login-card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 36px 32px; width: 100%; max-width: 340px;
  display: flex; flex-direction: column; gap: 14px; text-align: center;
}
.login-logo { font-size: 44px; }
.login-card h1 { margin: 0; font-size: 22px; }
.login-card input, .login-card button {
  padding: 12px 14px; border-radius: 9px; font-size: 15px; border: 1px solid var(--border);
}
.login-card input { background: #0d1117; color: var(--text); }
.login-card button {
  background: var(--accent); color: #05131f; border: none; font-weight: 700; cursor: pointer;
}
.login-card button:hover { filter: brightness(1.08); }
.login-err { color: var(--red); min-height: 18px; font-size: 13px; }

/* ---------- Topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; background: var(--panel); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10; flex-wrap: wrap; gap: 8px;
}
.brand { font-size: 17px; font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-live { background: var(--green); box-shadow: 0 0 0 0 rgba(63,185,80,.6); animation: pulse 2s infinite; }
.dot-stale { background: var(--yellow); animation: none; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(63,185,80,.5)} 70%{box-shadow:0 0 0 8px rgba(63,185,80,0)} 100%{box-shadow:0 0 0 0 rgba(63,185,80,0)} }
.btn-ghost {
  background: transparent; color: var(--muted); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }

/* ---------- Layout ---------- */
main { max-width: 1200px; margin: 0 auto; padding: 22px; }
.muted { color: var(--muted); font-size: 13px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 22px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.card-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 10px; }
.card-sub { color: var(--muted); font-size: 13px; margin-top: 8px; text-align: center; }
.gauge-card { display: flex; flex-direction: column; align-items: center; }
.gauge { max-width: 150px; }
.stat-card .stat-row { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid var(--border); }
.stat-card .stat-row:last-child { border-bottom: none; }
.stat-card .stat-row b { color: var(--text); }
.stat-card.big { text-align: center; }
.big-num { font-size: 30px; font-weight: 800; color: var(--accent); margin: 6px 0; }

/* ---------- Panels ---------- */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 20px; margin-bottom: 24px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; flex-wrap: wrap; gap: 10px; }
.panel-head h2 { margin: 0; font-size: 16px; }
.range-tabs { display: flex; gap: 4px; background: var(--bg); border: 1px solid var(--border); border-radius: 9px; padding: 3px; }
.range-tabs button { background: transparent; color: var(--muted); border: none; padding: 6px 14px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.range-tabs button.active { background: var(--accent); color: #05131f; font-weight: 700; }
.chart-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.chart-box { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.chart-box.wide { grid-column: 1 / -1; }
.chart-box h3 { margin: 0 0 10px; font-size: 13px; color: var(--muted); font-weight: 600; }
.chart-box canvas { max-height: 240px; }

/* ---------- Barra de meta ---------- */
.bar { height: 7px; background: var(--bg); border-radius: 4px; margin-top: 10px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--green); width: 0%; transition: width .4s; }

footer.muted { text-align: center; padding: 12px; }

@media (max-width: 640px) {
  main { padding: 14px; }
  .big-num { font-size: 24px; }
}