:root {
  --bg: #0d1117;
  --card: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --danger: #f85149;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
}

.wrap {
  width: min(420px, 92vw);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

header h1 { margin: 0 0 4px; font-size: 1.35rem; }
.sub { margin: 0 0 20px; color: var(--muted); font-size: 0.9rem; }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
}
.tab.active { color: var(--text); border-color: var(--accent); }

.panel { display: none; }
.panel.active { display: block; }

label { display: block; margin-bottom: 12px; font-size: 0.85rem; color: var(--muted); }
input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.primary {
  width: 100%;
  margin-top: 8px;
  padding: 11px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #0d1117;
  font-weight: 600;
  cursor: pointer;
}
.primary:disabled { opacity: 0.5; cursor: not-allowed; }

.message { min-height: 1.2em; font-size: 0.85rem; margin-top: 12px; }
.message.error { color: var(--danger); }
.message.ok { color: #3fb950; }

.hidden { display: none; }

.operator-banner {
  margin: 0 0 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(88, 166, 255, 0.12);
  border: 1px solid rgba(88, 166, 255, 0.35);
  color: #58a6ff;
  font-size: 0.8rem;
  font-weight: 600;
}

dialog {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  color: var(--text);
  padding: 20px;
  max-width: 480px;
  width: 92vw;
}
dialog::backdrop { background: rgba(0,0,0,0.65); }
#recovery-codes {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  line-height: 1.6;
  user-select: all;
  margin-bottom: 0;
}

.recovery-ack {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0 12px;
  padding: 0;
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
}

.recovery-ack span {
  white-space: nowrap;
  line-height: 1.2;
}

.recovery-ack input[type="checkbox"] {
  display: inline-block;
  width: 16px;
  height: 16px;
  min-width: 16px;
  margin: 0;
  flex-shrink: 0;
  accent-color: var(--accent);
}