:root {
  --bg: #f5f7fb;
  --card-border: #e8ebf3;
  --title: #111827;
  --text: #1f2937;
}

body {
  background: radial-gradient(circle at 15% 10%, #e7f0ff 0%, transparent 32%),
    radial-gradient(circle at 85% 90%, #e8fff2 0%, transparent 28%),
    var(--bg);
  color: var(--text);
}

.navbar-brand {
  letter-spacing: 0.4px;
}

.card {
  border-color: var(--card-border);
  box-shadow: 0 8px 22px rgb(16 24 40 / 4%);
}

.card-stat .display-6 {
  color: var(--title);
  font-weight: 700;
}

.auth-screen {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1.2rem;
}

.auth-card {
  width: min(500px, 95vw);
}

.qr-wrapper {
  min-height: 180px;
  display: grid;
  place-items: center;
}

.qr-placeholder {
  width: 100%;
  border: 1px dashed #cbd5e1;
  border-radius: 0.5rem;
  min-height: 150px;
  display: grid;
  place-items: center;
  color: #64748b;
  font-size: 0.9rem;
}

table th {
  white-space: nowrap;
}