:root {
  --bg: #0f141b;
  --panel: #151c26;
  --text: #e6edf3;
  --muted: #94a3b8;
  --accent: #22c55e;
  --danger: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #101826, #0c1117 60%);
  color: var(--text);
}

.app {
  max-width: 1100px;
  margin: 24px auto 48px;
  padding: 0 16px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

h1 {
  font-size: 24px;
  margin: 0;
}

h2 {
  margin-top: 0;
}

.card {
  background: var(--panel);
  border: 1px solid #1f2a3a;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.row.compact {
  align-items: flex-start;
  padding: 8px 0;
  border-bottom: 1px dashed #233044;
}

.row.compact:last-child {
  border-bottom: none;
}

.grow { flex: 1; }

input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid #2a3a50;
  border-radius: 8px;
  background: #0f141b;
  color: var(--text);
}

button {
  padding: 10px 12px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #05110a;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.05);
}

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

.hint {
  color: var(--muted);
  margin-top: 8px;
}

.hint.ok {
  color: var(--accent);
}

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

.mono {
  font-family: "Fira Code", monospace;
  font-size: 12px;
  word-break: break-all;
}

.qr img {
  max-width: 240px;
  margin-top: 8px;
  border-radius: 8px;
  background: #fff;
  padding: 8px;
}

.list {
  max-height: 360px;
  overflow: auto;
}

.hidden {
  display: none !important;
}

@media (max-width: 640px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}