* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Segoe UI", sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  background: #f0f4f8;
  gap: 1.5rem;
  padding: 2rem;
}
h1 {
  font-size: 1.8rem;
  color: #1a202c;
}
p {
  color: #4a5568;
  text-align: center;
  max-width: 400px;
}
#qr-box {
  background: white;
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
#qr-img {
  width: 260px;
  height: 260px;
  border-radius: 8px;
}
.badge {
  background: #ebf8ff;
  color: #2b6cb0;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.status-panel {
  width: 100%;
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  border: 2px solid transparent;
}

.status-panel strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.status-panel p {
  max-width: none;
}

.status-waiting {
  background: #ebf8ff;
  color: #2b6cb0;
  border-color: #90cdf4;
}

.status-ok {
  background: #f0fff4;
  color: #276749;
  border-color: #9ae6b4;
}

.status-limit {
  background: #fffaf0;
  color: #9c4221;
  border-color: #fbd38d;
}

.status-error {
  background: #fff5f5;
  color: #c53030;
  border-color: #feb2b2;
}

.manual-row {
  width: 100%;
  display: flex;
  gap: 0.5rem;
}

.manual-row input {
  flex: 1;
  padding: 0.65rem 0.75rem;
  border: 1px solid #cbd5e0;
  border-radius: 8px;
  font-size: 1rem;
  text-transform: uppercase;
}

.manual-row button {
  padding: 0.65rem 0.85rem;
  border: none;
  border-radius: 8px;
  background: #2b6cb0;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.visitor-code {
  background: #ebf8ff;
  color: #1a365d;
  border: 1px solid #90cdf4;
  border-radius: 10px;
  padding: 0.75rem 1rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
}