code-craft-studio/src/components/QRScanner/QRScanner.css

A comprehensive QR code and barcode scanning/generation library for React. Works with or without Capacitor. Supports 22+ QR data types and 14+ barcode formats (EAN, UPC, Code 128, etc.), with customizable designs, analytics, and React components. Provider

.qr-scanner-container {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 400px;
  background-color: #000;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-scanner-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.qr-scanner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.scan-region {
  position: relative;
  width: 250px;
  height: 250px;
  border: 2px solid transparent;
}

.corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border: 3px solid #00ff00;
}

.corner.top-left {
  top: 0;
  left: 0;
  border-right: none;
  border-bottom: none;
}

.corner.top-right {
  top: 0;
  right: 0;
  border-left: none;
  border-bottom: none;
}

.corner.bottom-left {
  bottom: 0;
  left: 0;
  border-right: none;
  border-top: none;
}

.corner.bottom-right {
  bottom: 0;
  right: 0;
  border-left: none;
  border-top: none;
}

.scan-line {
  position: absolute;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #00ff00, transparent);
  animation: scan 2s linear infinite;
}

@keyframes scan {
  0% {
    transform: translateY(-125px);
  }
  100% {
    transform: translateY(125px);
  }
}

.scan-hint {
  margin-top: 20px;
  color: #fff;
  font-size: 14px;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.5);
  padding: 8px 16px;
  border-radius: 20px;
}

.qr-scanner-permission,
.qr-scanner-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  text-align: center;
  color: #fff;
}

.permission-icon,
.error-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.qr-scanner-permission h3,
.qr-scanner-error h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.qr-scanner-permission p,
.qr-scanner-error p {
  font-size: 16px;
  margin-bottom: 20px;
  opacity: 0.8;
}

.permission-button,
.retry-button,
.start-scan-button,
.stop-scan-button {
  background-color: #007AFF;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.permission-button:hover,
.retry-button:hover,
.start-scan-button:hover {
  background-color: #0062CC;
}

.stop-scan-button {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #FF3B30;
  pointer-events: all;
}

.stop-scan-button:hover {
  background-color: #D70015;
}

.qr-scanner-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

/* Dark mode support */
@media (prefers-color-scheme: light) {
  .qr-scanner-container {
    background-color: #f5f5f5;
  }
  
  .qr-scanner-permission,
  .qr-scanner-error {
    color: #333;
  }
}