:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #263449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-2: #22c55e;
  --danger: #ef4444;
  --border: #334155;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
}

.card h1 {
  font-size: 20px;
  margin: 0 0 4px;
}

.card p.subtitle {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 13px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin: 14px 0 6px;
}

input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
}

input:focus { outline: 2px solid var(--accent); }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
}

button.primary {
  background: var(--accent);
  color: white;
  width: 100%;
  margin-top: 20px;
}

button.primary:hover { background: #2563eb; }

.error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 12px;
  min-height: 16px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}

.topbar h1 { font-size: 18px; margin: 0; }
.topbar .who { color: var(--muted); font-size: 13px; }

.container { padding: 24px; max-width: 1000px; margin: 0 auto; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.panel h2 { font-size: 15px; margin: 0 0 16px; }

.new-seat-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.new-seat-form .field { flex: 1; min-width: 140px; }
.new-seat-form label { margin-top: 0; }
.new-seat-form button { white-space: nowrap; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

th { color: var(--muted); font-weight: 500; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge.pending { background: rgba(148,163,184,0.15); color: var(--muted); }
.badge.registered { background: rgba(59,130,246,0.15); color: #60a5fa; }
.badge .dot { width: 7px; height: 7px; border-radius: 999px; background: currentColor; }
.badge.online { background: rgba(34,197,94,0.15); color: var(--accent-2); }
.badge.offline { background: rgba(148,163,184,0.15); color: var(--muted); }

button.link {
  background: none;
  color: var(--danger);
  padding: 4px 8px;
}

.credential-banner {
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.4);
  color: #bbf7d0;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

.credential-banner code {
  background: rgba(0,0,0,0.25);
  padding: 2px 6px;
  border-radius: 4px;
}

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