:root {
  --bg: #12151c;
  --card: #1c212c;
  --text: #e8ecf1;
  --muted: #9aa6b2;
  --accent: #3d8bfd;
  --ok: #2f9e6b;
  --warn: #c9a227;
  --err: #c44545;
  --on: #2f9e6b;
  --off: #5c6570;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background: #0e1116;
  border-bottom: 1px solid #2a3140;
}

.brand { font-weight: 700; }

.user {
  display: flex;
  gap: 1rem;
  align-items: center;
}

main { padding: 1.25rem; max-width: 1100px; margin: 0 auto; }

h1, h2 { margin-top: 0; }

.muted { color: var(--muted); }

.login-card {
  max-width: 22rem;
  margin: 4rem auto;
  background: var(--card);
  padding: 1.5rem;
  border-radius: 10px;
}

label { display: block; margin: 0.75rem 0; font-size: 0.9rem; }

input[type="email"],
input[type="password"] {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
  border: 1px solid #3a4354;
  background: #0e1116;
  color: var(--text);
}

button {
  cursor: pointer;
  border: 0;
  border-radius: 6px;
  padding: 0.45rem 0.8rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.flash { padding: 0.6rem 0.8rem; border-radius: 6px; }
.flash.ok { background: #163528; }
.flash.err { background: #3a1b1b; }

.status-bar { margin-bottom: 1.25rem; }

.badge {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge.ok { background: #163528; color: #8fe0b4; }
.badge.warn { background: #3a3214; color: #f0d36a; }
.badge.queued { background: #2a3140; color: #c5d4e8; margin-top: 0.35rem; }

.coil-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
}

.coil {
  background: var(--card);
  border-radius: 8px;
  padding: 0.75rem;
  border-left: 4px solid var(--off);
}
.coil.on { border-left-color: var(--on);color: #000;background-color: #e0fbef; }
.coil.unknown { border-left-color: #3a4354; }

.coil-label { font-weight: 700; }
.coil-id { font-size: 0.75rem; color: var(--muted); margin-top: 0.15rem; }
.coil-state { font-size: 1.05rem; font-weight: 700; margin: 0.35rem 0 0.5rem; }

.coil-actions { display: flex; gap: 0.4rem; }
.coil-actions button.on { background: var(--on); }
.coil-actions button.off { background: var(--err); }

.slave { margin-bottom: 2rem; }