:root {
  --bg: #10140f;
  --card: #1b241c;
  --line: #314036;
  --text: #edf3ea;
  --muted: #9aab9d;
  --ok: #37d38a;
  --bad: #ef5b4c;
  --warn: #e2b15a;
  --accent: #d7a441;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Tahoma, "Segoe UI", sans-serif;
  background: radial-gradient(1200px 500px at 100% -10%, #243528 0%, var(--bg) 55%);
  color: var(--text);
}
main { max-width: 980px; margin: 0 auto; padding: 24px 18px 40px; }
header { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
h1 { margin: 0; font-size: 30px; }
.sub { margin: 6px 0 0; color: var(--muted); }
button, .linkish {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(27, 36, 28, 0.9);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 13px;
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--bad); }
.dot.on { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card {
  background: rgba(27, 36, 28, 0.92);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
}
.label { color: var(--muted); font-size: 13px; }
.value { font-size: 34px; font-weight: 700; margin-top: 8px; }
.unit { font-size: 14px; color: var(--muted); margin-right: 4px; }
.stale .value { opacity: 0.4; }
.meta { margin-top: 14px; color: var(--muted); font-size: 13px; line-height: 1.7; }
select {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
}
.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}
.login form { width: min(420px, 100%); }
input {
  width: 100%;
  margin: 8px 0;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #121812;
  color: var(--text);
  font-size: 16px;
}
.login button {
  width: 100%;
  margin-top: 8px;
  background: var(--accent);
  color: #1d1608;
  border: 0;
  font-weight: 700;
  font-size: 16px;
  border-radius: 10px;
  padding: 12px;
}
.err { color: var(--bad); min-height: 1.2em; font-size: 14px; }
@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
  .value { font-size: 30px; }
}