:root {
  --bg: #0d1117; --panel: #161b22; --border: #30363d;
  --fg: #e6edf3; --muted: #8b949e;
  --good: #3fb950; --bad: #f85149; --accent: #58a6ff;
}
* { box-sizing: border-box; }
/* `hidden` must win over any display rule below (e.g. .login-wrap { flex }). */
[hidden] { display: none !important; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.45 system-ui, 'Segoe UI', sans-serif;
}
.topbar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--panel);
}
.brand { font-weight: 700; font-size: 16px; }
.muted { color: var(--muted); }
.small { font-size: 12px; font-weight: 400; }
.pill {
  background: #21262d; border: 1px solid var(--border); border-radius: 999px;
  padding: 2px 10px; font-size: 12px; color: var(--muted);
}
.tiles {
  display: flex; gap: 8px; padding: 12px 16px; flex-wrap: nowrap; overflow-x: auto;
}
.tile {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 14px; min-width: 90px; flex: 1;
}
.tile-label { font-size: 11px; color: var(--muted); white-space: nowrap; }
.tile-val { font-size: 18px; font-weight: 700; }
.good { color: var(--good); }
.bad { color: var(--bad); }
.app-body { display: flex; gap: 14px; padding: 0 16px 24px; align-items: flex-start; }
.sidebar {
  width: 360px; flex-shrink: 0; background: var(--panel);
  border: 1px solid var(--border); border-radius: 8px; padding: 12px;
}
.sidebar h3 { margin: 0 0 8px; font-size: 14px; }
#settings-form { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 10px; }
.set-row { display: block; margin-bottom: 2px; }
.set-label { display: block; font-size: 10px; color: var(--muted); margin-bottom: 1px; line-height: 1.25; min-height: 24px; }
.set-row input {
  width: 100%; background: #0d1117; border: 1px solid var(--border); border-radius: 6px;
  color: var(--fg); padding: 4px 7px; font-size: 12px;
}
.set-row input:focus { outline: none; border-color: var(--accent); }
#save-btn {
  width: 100%; margin-top: 10px; background: #238636; color: #fff; border: 0;
  border-radius: 6px; padding: 8px; font-weight: 600; cursor: pointer;
}
#save-btn:hover { background: #2ea043; }
#save-note { margin-top: 6px; min-height: 16px; }
.main-col { flex: 1; min-width: 0; }
.tabs { display: flex; gap: 6px; margin-bottom: 10px; }
.tab {
  background: var(--panel); border: 1px solid var(--border); color: var(--muted);
  border-radius: 6px; padding: 6px 12px; cursor: pointer; font-size: 13px;
}
.tab.active { color: var(--fg); border-color: var(--accent); }
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
th, td { text-align: left; padding: 7px 10px; font-size: 13px; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; border-bottom: 1px solid var(--border); }
tr:nth-child(even) td { background: rgba(255, 255, 255, 0.02); }
.pad { padding: 20px; }
.mono { font-family: ui-monospace, 'Cascadia Code', monospace; font-size: 12px; color: var(--muted); }
.copy {
  background: none; border: 0; color: var(--accent); cursor: pointer; font-size: 12px;
  padding: 0 2px; opacity: .6; vertical-align: middle;
}
.copy:hover { opacity: 1; }
.dot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--good);
  display: inline-block; animation: pulse 1.4s ease-in-out infinite;
}
.dot.stale { background: var(--bad); animation: none; }
@keyframes pulse { 0%,100% { opacity: 1; box-shadow: 0 0 0 0 rgba(63,185,80,.5); } 50% { opacity: .5; box-shadow: 0 0 0 5px rgba(63,185,80,0); } }
#block-pill.bump { color: var(--good); border-color: var(--good); transition: none; }
#block-pill { transition: color .6s, border-color .6s; }
@media (max-width: 900px) {
  .app-body { flex-direction: column; }
  .sidebar { width: 100%; }
}

/* login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.login-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 32px 28px; width: 100%; max-width: 320px; text-align: center;
}
.login-logo { font-size: 40px; margin-bottom: 4px; }
.login-card h2 { margin: 0 0 2px; font-size: 20px; }
.login-card p { margin: 0 0 16px; font-size: 13px; }
#pin-input {
  width: 100%; background: #0d1117; border: 1px solid var(--border); border-radius: 8px;
  color: var(--fg); padding: 12px; font-size: 22px; text-align: center; letter-spacing: 6px;
}
#pin-input:focus { outline: none; border-color: var(--accent); }
#login-btn {
  width: 100%; margin-top: 14px; background: #238636; color: #fff; border: 0;
  border-radius: 8px; padding: 11px; font-weight: 600; font-size: 15px; cursor: pointer;
}
#login-btn:hover { background: #2ea043; }
#login-btn:disabled { opacity: .6; cursor: default; }
.error { color: var(--bad); margin-top: 12px; font-size: 13px; }