:root {
  --bn-bg: #0b0e11;
  --bn-card: #1e2329;
  --bn-border: #2b3139;
  --bn-yellow: #f0b90b;
  --bn-text: #eaecef;
  --bn-muted: #848e9c;
  --eu-blue: #003399;
  --eu-gold: #ffcc00;
  --eu-navy: #081225;
}

* {
  box-sizing: border-box;
}

body.qr-hub {
  margin: 0;
  min-height: 100vh;
  font-family: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  background: #06080a;
  color: var(--bn-text);
}

.qr-hub-head {
  text-align: center;
  padding: 1.5rem 1rem 1rem;
  border-bottom: 1px solid var(--bn-border);
  background: linear-gradient(180deg, #181a20 0%, #0b0e11 100%);
}

.qr-hub-domain {
  display: inline-block;
  margin: 0 0 0.5rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--bn-yellow);
  background: rgba(240, 185, 11, 0.12);
  border: 1px solid rgba(240, 185, 11, 0.45);
  border-radius: 999px;
}

.qr-hub-head h1 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 700;
}

.qr-hub-lead {
  margin: 0;
  font-size: 0.85rem;
  color: var(--bn-muted);
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  max-width: 820px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* —— Binance card —— */
.qr-card--binance {
  background: linear-gradient(165deg, #1e2329 0%, #0b0e11 100%);
  border: 1px solid var(--bn-border);
  border-top: 3px solid var(--bn-yellow);
  border-radius: 12px;
  padding: 1.25rem 1rem 1rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}

.qr-card--binance .qr-card-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.qr-binance-word {
  display: block;
  height: 18px;
  width: auto;
}

.qr-card--binance .qr-scan-hint {
  color: var(--bn-yellow);
}

.qr-frame--binance {
  background: #fff;
  border: 2px solid var(--bn-yellow);
  border-radius: 10px;
  padding: 0.75rem;
  box-shadow: 0 0 24px rgba(240, 185, 11, 0.15);
}

/* —— Europe / EC3 card —— */
.qr-card--europe {
  background: linear-gradient(165deg, #0f2142 0%, #081225 100%);
  border: 1px solid #1d3557;
  border-top: 3px solid var(--eu-gold);
  border-radius: 12px;
  padding: 1.25rem 1rem 1rem;
  box-shadow: 0 16px 48px rgba(0, 51, 153, 0.25);
}

.qr-card--europe .qr-card-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.qr-eu-title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.qr-card--europe .qr-scan-hint {
  color: var(--eu-gold);
}

.qr-frame--europe {
  background: #fff;
  border: 2px solid var(--eu-blue);
  border-radius: 10px;
  padding: 0.75rem;
  box-shadow: 0 0 0 1px var(--eu-gold), 0 8px 28px rgba(0, 51, 153, 0.35);
}

.qr-card-sub {
  margin: 0.15rem 0 0;
  font-size: 0.72rem;
  color: var(--bn-muted);
}

.qr-card--europe .qr-card-sub {
  color: #8fa3bf;
}

.qr-scan-hint {
  margin: 0 0 0.65rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
}

.qr-canvas {
  display: flex;
  justify-content: center;
  align-items: center;
}

.qr-canvas img,
.qr-canvas canvas {
  display: block;
  border-radius: 4px;
}

.qr-url {
  margin: 0.65rem 0 0.75rem;
  font-size: 0.68rem;
  word-break: break-all;
  text-align: center;
  font-family: ui-monospace, monospace;
  line-height: 1.4;
  color: var(--bn-muted);
}

.qr-card--europe .qr-url {
  color: #8fa3bf;
}

.qr-card-actions {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.btn-bn,
.btn-eu {
  width: 100%;
  padding: 0.55rem;
  border: none;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
}

.btn-bn {
  background: var(--bn-yellow);
  color: #0b0e11;
}

.btn-bn:hover {
  background: #fcd535;
}

.btn-eu {
  background: var(--eu-blue);
  color: #fff;
  border: 1px solid var(--eu-gold);
}

.btn-eu:hover {
  background: #002776;
}

.btn-bn-outline,
.btn-eu-outline {
  display: block;
  text-align: center;
  padding: 0.5rem;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  font-family: inherit;
}

.btn-bn-outline {
  border: 1px solid var(--bn-border);
  color: var(--bn-yellow);
}

.btn-eu-outline {
  border: 1px solid #1d3557;
  color: var(--eu-gold);
}

.qr-hub-foot {
  text-align: center;
  padding: 0 1rem 2rem;
}

.btn-print-all {
  background: transparent;
  border: 1px solid var(--bn-muted);
  color: var(--bn-text);
  padding: 0.5rem 1.25rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 0.75rem;
  font-family: inherit;
}

.qr-home-link {
  color: var(--bn-muted);
  font-size: 0.85rem;
}

@media print {
  body.qr-hub {
    background: #fff;
    color: #000;
  }
  .qr-hub-foot,
  .qr-card-actions {
    display: none;
  }
  .qr-grid {
    grid-template-columns: 1fr 1fr;
  }
}