:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #262b35;
  --text: #e6e8ec;
  --muted: #8b92a3;
  --accent: #22c55e;
  --accent-dim: #14532d;
  --warn: #f59e0b;
  --danger: #ef4444;
  --danger-dim: #7f1d1d;
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.topbar h1 {
  font-size: 20px;
  margin: 0;
  font-weight: 600;
}

.badge {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.badge-disconnected { background: var(--danger-dim); color: #fca5a5; }
.badge-connecting { background: #78350f; color: #fcd34d; }
.badge-connected { background: var(--accent-dim); color: #86efac; }

.grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 16px;
}

.log-card { grid-column: 1 / -1; }

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}

.card h2 {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.qr-box {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  background: #0b0d11;
  border: 1px dashed var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  padding: 12px;
}

.qr-box img {
  width: 220px;
  height: 220px;
  border-radius: 8px;
  background: #fff;
  padding: 8px;
}

.hint {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.muted { color: var(--muted); font-size: 13px; }

.btn-row {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.btn {
  flex: 1;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #1f2430;
  color: var(--text);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.btn:hover { background: #262c3a; }

.btn-danger {
  background: var(--danger-dim);
  border-color: #991b1b;
  color: #fecaca;
}

.btn-danger:hover { background: #8b1f1f; }

.stats {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.stat {
  flex: 1;
  background: #0b0d11;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 10px;
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 22px;
  font-weight: 700;
}

.stat-label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.log-list {
  max-height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.log-item {
  display: flex;
  gap: 10px;
  padding: 10px 12px;
  background: #0b0d11;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
}

.log-type {
  flex-shrink: 0;
  width: 60px;
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  align-self: flex-start;
  margin-top: 2px;
}

.log-type-in { color: #60a5fa; }
.log-type-out { color: var(--accent); }
.log-type-system { color: var(--muted); }
.log-type-error { color: var(--danger); }

.log-content { flex: 1; word-break: break-word; }
.log-time { flex-shrink: 0; font-size: 11px; color: var(--muted); }

.footer {
  margin-top: 24px;
  text-align: center;
}

.footer p {
  font-size: 12px;
  color: var(--muted);
}