:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --muted: #8b93a1;
  --green: #2ecc71;
  --green-dim: #1f7a47;
  --gray: #4b5261;
  --accent: #4c8dff;
  --danger: #ff5c5c;
  --radius: 12px;
}

* { box-sizing: border-box; }
/* The hidden attribute must always win over the display rules below
   (.login-view/.dash-view set an explicit display). */
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.muted { color: var(--muted); }
.error { color: var(--danger); margin: 8px 0 0; font-size: 14px; }
.ok { color: var(--green); margin: 8px 0 0; font-size: 14px; }

/* ---- Login ---- */
.login-view {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: 100%;
  max-width: 340px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-card h1 { margin: 0; font-size: 20px; }
.login-card .sub { margin: -8px 0 6px; color: var(--muted); font-size: 13px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 15px;
}
.login-card input:focus { outline: 2px solid var(--accent); outline-offset: 0; }
.login-card button {
  margin-top: 6px;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 11px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.login-card button:disabled { opacity: .6; cursor: default; }

/* ---- Dashboard ---- */
.dash-view { max-width: 900px; margin: 0 auto; padding: 20px 16px 48px; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 16px;
}
.brand { display: flex; align-items: center; gap: 8px; font-size: 16px; }
.brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }
.top-right { display: flex; align-items: center; gap: 12px; }
.badge {
  background: var(--panel-2); border: 1px solid var(--border);
  padding: 5px 10px; border-radius: 999px; font-size: 13px; font-variant-numeric: tabular-nums;
}
.badge.full { border-color: var(--green-dim); color: var(--green); }
button.ghost {
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 12px; cursor: pointer; font-size: 13px;
}
button.ghost:hover { color: var(--text); }

/* ---- Droplet ---- */
.droplet {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 18px;
}
.droplet h2 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px 16px; }
.metric { display: flex; flex-direction: column; gap: 2px; }
.metric .label { font-size: 12px; color: var(--muted); }
.metric .value { font-size: 15px; font-variant-numeric: tabular-nums; }

/* ---- Grid of demos ---- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  display: flex; flex-direction: column; gap: 14px;
}
.card-head { display: flex; align-items: center; gap: 10px; }
.card-name { margin: 0; font-size: 16px; }
.pill {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--gray); flex: none;
}
.card.up .pill { background: var(--green); box-shadow: 0 0 8px var(--green); }
.card-actions { display: flex; gap: 8px; align-items: center; }
.toggle {
  flex: 1; border: 0; border-radius: 8px; padding: 9px;
  font-size: 14px; font-weight: 600; cursor: pointer; color: #fff;
}
.card.up .toggle { background: var(--danger); }
.card.down .toggle { background: var(--green-dim); }
.toggle:disabled { opacity: .45; cursor: not-allowed; }
.open {
  border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 12px; color: var(--muted); text-decoration: none; font-size: 14px;
}
.open:hover { color: var(--text); }
.card.busy { opacity: .7; pointer-events: none; }

@media (max-width: 480px) {
  .grid { grid-template-columns: 1fr; }
}