/**
 * QR/BARCODE SCANNER UX IMPROVEMENTS
 * Version: 1.0.0
 *
 * Full-screen scanner modal with professional UX
 * - Clear visual feedback
 * - Animated scanning frame
 * - Step-by-step instructions
 * - Dark overlay for camera focus
 * - Accessible design
 */

/* =============================================
   HTML5-QRCODE LIBRARY FIXES
   Fix camera permission modal and controls
   ============================================= */

/* Fix camera permission button - FORCE dark text on light background */
#html5-qrcode-button-camera-permission,
#html5-qrcode-button-camera-start,
#html5-qrcode-button-camera-stop,
#html5-qrcode-button-file-selection {
  background-color: #ffffff !important;
  color: #1a1a1a !important;
  border: 2px solid rgba(0, 0, 0, 0.2) !important;
  padding: 12px 24px !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
  font-size: 16px !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
}

#html5-qrcode-button-camera-permission:hover,
#html5-qrcode-button-camera-start:hover,
#html5-qrcode-button-camera-stop:hover,
#html5-qrcode-button-file-selection:hover {
  background-color: #f0f0f0 !important;
  color: #000000 !important;
  border-color: rgba(0, 0, 0, 0.3) !important;
}

/* Fix select dropdown in html5-qrcode */
#html5-qrcode-select-camera,
#html5-qrcode-select-file {
  background-color: #ffffff !important;
  color: #1a1a1a !important;
  border: 2px solid rgba(0, 0, 0, 0.2) !important;
  padding: 8px 12px !important;
  border-radius: 6px !important;
  font-size: 14px !important;
}

/* Fix dashboard section - only text elements */
#qr-reader__dashboard_section_csr > div,
#qr-reader__dashboard_section_csr > span {
  color: #1a1a1a !important;
}

/* Fix scan region - solid background for visibility */
#qr-reader__scan_region {
  background-color: #ffffff !important;
  padding: 24px !important;
  border-radius: 12px !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2) !important;
  margin: 0 auto !important;
  text-align: center !important;
  min-width: 300px !important;
  width: 100% !important;
  min-height: auto !important;
  max-height: none !important;
  height: auto !important;
  box-sizing: border-box !important;
  display: block !important;
  overflow: visible !important;
}

/* Ensure ALL text inside scan region is visible */
#qr-reader__scan_region,
#qr-reader__scan_region div,
#qr-reader__scan_region span,
#qr-reader__scan_region p,
#qr-reader__scan_region a {
  color: #1a1a1a !important;
}

/* Ensure all containers inside scan region allow content to flow */
#qr-reader__scan_region > div,
#qr-reader__dashboard,
#qr-reader__dashboard_section {
  overflow: visible !important;
  height: auto !important;
  max-height: none !important;
}

/* Ensure buttons inside scan region are visible */
#qr-reader__scan_region button {
  background-color: var(--bs-success, var(--sp-color-primary)) !important;
  color: #ffffff !important;
  border: 2px solid var(--bs-success, var(--sp-color-primary)) !important;
  padding: 10px 20px !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
}

#qr-reader__scan_region button:hover {
  background-color: #157347 !important;
  border-color: #157347 !important;
}

/* Select dropdown inside scan region */
#qr-reader__scan_region select {
  background-color: #f8f9fa !important;
  color: #1a1a1a !important;
  border: 2px solid #dee2e6 !important;
  padding: 8px 12px !important;
  border-radius: 6px !important;
  font-size: 14px !important;
}

/* Fix error messages and status text - only text elements, not containers */
#qr-reader__status_span {
  color: #1a1a1a !important;
  background-color: rgba(255, 255, 255, 0.9) !important;
  padding: 8px 12px !important;
  border-radius: 6px !important;
  display: inline-block !important;
}

/* Fix text in camera selection section */
#qr-reader__dashboard_section_csr {
  background-color: transparent !important;
  padding: 0 !important;
  border-radius: 0 !important;
  position: relative !important;
  width: 100% !important;
}

#qr-reader__dashboard_section_csr select,
#qr-reader__dashboard_section_csr button,
#qr-reader__dashboard_section_csr span {
  color: #1a1a1a !important;
}

/* Override dark mode for html5-qrcode elements */
@media (prefers-color-scheme: dark) {
  #html5-qrcode-button-camera-permission,
  #html5-qrcode-button-camera-start,
  #html5-qrcode-button-camera-stop,
  #html5-qrcode-button-file-selection {
    background-color: #ffffff !important;
    color: #1a1a1a !important;
  }

  #html5-qrcode-select-camera,
  #html5-qrcode-select-file {
    background-color: #ffffff !important;
    color: #1a1a1a !important;
  }

  #qr-reader__dashboard_section_csr {
    background-color: transparent !important;
  }

  #qr-reader__dashboard_section_csr select,
  #qr-reader__dashboard_section_csr button,
  #qr-reader__dashboard_section_csr span,
  #qr-reader__status_span {
    color: #1a1a1a !important;
  }
}

/* =============================================
   SCANNER MODAL OVERLAY
   Full-screen dark backdrop for focus
   ============================================= */

#qr-scanner-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999; /* Lower z-index to allow browser permission dialogs to appear above */
  display: none; /* Hidden by default */
  background-color: rgba(0, 0, 0, 0.95);
  animation: sp-fade-in 0.3s ease;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

#qr-scanner-modal.sp-scanner-active {
  display: flex;
  flex-direction: column;
}

/* =============================================
   SCANNER HEADER
   Title and close button
   ============================================= */

.sp-scanner-header {
  position: sticky;
  top: 0;
  z-index: 1000; /* Keep below browser permission dialogs */
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(0, 0, 0, 0.7) 100%
  );
  padding: var(--sp-space-lg);
  padding-top: max(var(--sp-space-lg), var(--safe-area-inset-top));
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sp-scanner-header__title {
  color: white;
  font-size: var(--sp-font-size-xl);
  font-weight: var(--sp-font-weight-bold);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--sp-space-sm);
}

.sp-scanner-header__icon {
  font-size: 1.5rem;
  color: var(--sp-color-primary-light);
}

.sp-scanner-close {
  min-width: 48px;
  min-height: 48px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--sp-transition-fast);
}

.sp-scanner-close:hover,
.sp-scanner-close:focus {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: white;
  transform: rotate(90deg);
}

.sp-scanner-close:active {
  transform: rotate(90deg) scale(0.9);
}

/* =============================================
   SCANNER CONTENT AREA
   Container for camera and instructions
   ============================================= */

.sp-scanner-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--sp-space-xl) var(--sp-space-md);
  padding-bottom: max(var(--sp-space-xl), var(--safe-area-inset-bottom));
}

/* =============================================
   INSTRUCTIONS SECTION
   Clear step-by-step guidance
   ============================================= */

.sp-scanner-instructions {
  width: 100%;
  max-width: 500px;
  margin-bottom: var(--sp-space-xl);
  background: linear-gradient(
    135deg,
    rgba(25, 135, 84, 0.15) 0%,
    rgba(25, 135, 84, 0.05) 100%
  );
  border: 2px solid rgba(25, 135, 84, 0.3);
  border-radius: var(--sp-radius-xl);
  padding: var(--sp-space-lg);
  animation: sp-pulse-border 2s infinite;
}

@keyframes sp-pulse-border {
  0%, 100% {
    border-color: rgba(25, 135, 84, 0.3);
    box-shadow: 0 0 0 0 rgba(25, 135, 84, 0.4);
  }
  50% {
    border-color: rgba(25, 135, 84, 0.6);
    box-shadow: 0 0 20px 0 rgba(25, 135, 84, 0.2);
  }
}

.sp-scanner-instructions__title {
  color: var(--sp-color-primary-light);
  font-size: var(--sp-font-size-lg);
  font-weight: var(--sp-font-weight-bold);
  margin: 0 0 var(--sp-space-md) 0;
  display: flex;
  align-items: center;
  gap: var(--sp-space-sm);
}

.sp-scanner-instructions__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sp-scanner-instructions__item {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--sp-font-size-base);
  line-height: var(--sp-line-height-relaxed);
  padding: var(--sp-space-sm) 0;
  display: flex;
  align-items: flex-start;
  gap: var(--sp-space-md);
}

.sp-scanner-instructions__step {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background-color: var(--sp-color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--sp-font-weight-bold);
  font-size: var(--sp-font-size-sm);
}

/* =============================================
   CAMERA CONTAINER
   Wrapper for the QR reader with visual frame
   ============================================= */

.sp-scanner-camera {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.sp-scanner-frame {
  position: relative;
  width: 100%;
  border-radius: var(--sp-radius-xl);
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.05);
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.1),
    0 20px 60px rgba(0, 0, 0, 0.5);
}

/* QR Reader element styling */
#qr-reader {
  display: block !important;
  width: 100%;
  min-height: 300px; /* Ensure enough height for permission button */
  background-color: transparent !important;
  border: none !important;
  padding: 0 !important;
}

/* Override html5-qrcode default styles */
#qr-reader video {
  border-radius: var(--sp-radius-lg) !important;
  display: block;
  width: 100% !important;
  height: auto !important;
}

/* Hide dashboard visually but allow buttons to render (for auto-click) */
#qr-reader__dashboard {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

#qr-reader__dashboard_section {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

#qr-reader__dashboard_section_csr {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* Also hide any error messages from html5-qrcode */
#qr-reader__header_message {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  opacity: 0 !important;
}

/* =============================================
   CAMERA FLIP BUTTON
   Toggle between front and back camera
   ============================================= */

.sp-scanner-flip-btn {
  position: absolute;
  top: var(--sp-space-lg);
  right: var(--sp-space-lg);
  z-index: 10;
  min-width: 48px;
  min-height: 48px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--sp-transition-fast);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.sp-scanner-flip-btn:hover,
.sp-scanner-flip-btn:focus {
  background-color: rgba(25, 135, 84, 0.9);
  border-color: var(--sp-color-primary-light);
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(25, 135, 84, 0.4);
}

.sp-scanner-flip-btn:active {
  transform: scale(0.95) rotate(180deg);
  transition: transform 0.3s ease;
}

.sp-scanner-flip-btn i {
  transition: transform var(--sp-transition-fast);
}

.sp-scanner-flip-btn:hover i {
  transform: rotate(180deg);
}

/* Ensure button is visible on light backgrounds */
.sp-scanner-flip-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.5) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
}

/* Mobile touch target optimization */
@media (max-width: 576px) {
  .sp-scanner-flip-btn {
    min-width: 56px;
    min-height: 56px;
    width: 56px;
    height: 56px;
    top: var(--sp-space-md);
    right: var(--sp-space-md);
  }
}

/* Focus state for accessibility */
.sp-scanner-flip-btn:focus-visible {
  outline: 3px solid white;
  outline-offset: 4px;
}

/* =============================================
   ANIMATED SCANNING FRAME
   Visual indicator of scan area
   ============================================= */

.sp-scanner-target {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  max-width: 300px;
  aspect-ratio: 1 / 1;
  border: 3px solid var(--sp-color-primary-light);
  border-radius: var(--sp-radius-lg);
  pointer-events: none;
  box-shadow:
    0 0 0 4px rgba(0, 0, 0, 0.5),
    inset 0 0 0 2px rgba(255, 255, 255, 0.2),
    0 0 30px rgba(25, 135, 84, 0.5);
  animation: sp-scanner-pulse 2s infinite;
}

@keyframes sp-scanner-pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.05);
    opacity: 0.8;
  }
}

/* Corner indicators */
.sp-scanner-target::before,
.sp-scanner-target::after,
.sp-scanner-corner-tl,
.sp-scanner-corner-tr,
.sp-scanner-corner-bl,
.sp-scanner-corner-br {
  content: '';
  position: absolute;
  width: 40px;
  height: 40px;
  border-color: white;
  border-style: solid;
}

/* Top-left corner */
.sp-scanner-target::before {
  top: -6px;
  left: -6px;
  border-width: 6px 0 0 6px;
  border-radius: var(--sp-radius-md) 0 0 0;
}

/* Top-right corner */
.sp-scanner-target::after {
  top: -6px;
  right: -6px;
  border-width: 6px 6px 0 0;
  border-radius: 0 var(--sp-radius-md) 0 0;
}

/* Bottom-left corner */
.sp-scanner-corner-bl {
  bottom: -6px;
  left: -6px;
  border-width: 0 0 6px 6px;
  border-radius: 0 0 0 var(--sp-radius-md);
}

/* Bottom-right corner */
.sp-scanner-corner-br {
  bottom: -6px;
  right: -6px;
  border-width: 0 6px 6px 0;
  border-radius: 0 0 var(--sp-radius-md) 0;
}

/* Scanning line animation */
.sp-scanner-line {
  position: absolute;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(
    to right,
    transparent 0%,
    var(--sp-color-primary-light) 50%,
    transparent 100%
  );
  box-shadow: 0 0 10px rgba(25, 135, 84, 0.8);
  animation: sp-scanner-line 2s linear infinite;
}

@keyframes sp-scanner-line {
  0% {
    top: 10%;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    top: 90%;
    opacity: 0;
  }
}

/* =============================================
   HELPER TEXT
   Additional guidance below camera
   ============================================= */

.sp-scanner-help {
  margin-top: var(--sp-space-xl);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--sp-font-size-sm);
  line-height: var(--sp-line-height-relaxed);
  max-width: 400px;
}

.sp-scanner-help__icon {
  font-size: 2rem;
  color: var(--sp-color-primary-light);
  margin-bottom: var(--sp-space-sm);
  display: block;
}

/* =============================================
   STATUS MESSAGES
   Success, error, and loading states
   ============================================= */

.sp-scanner-status {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--sp-space-lg);
  padding-bottom: max(var(--sp-space-lg), var(--safe-area-inset-bottom));
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(0, 0, 0, 0.7) 100%
  );
  transform: translateY(100%);
  transition: transform var(--sp-transition-base);
  z-index: 1001; /* Keep below browser permission dialogs */
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-space-md);
}

.sp-scanner-status.sp-scanner-status--visible {
  transform: translateY(0);
}

.sp-scanner-status__message {
  display: flex;
  align-items: center;
  gap: var(--sp-space-md);
  padding: var(--sp-space-md) var(--sp-space-lg);
  border-radius: var(--sp-radius-lg);
  font-weight: var(--sp-font-weight-semibold);
  width: 100%;
  max-width: 600px;
}

.sp-scanner-status--success .sp-scanner-status__message {
  background-color: rgba(25, 135, 84, 0.2);
  border: 2px solid var(--sp-color-success);
  color: var(--sp-color-primary-light);
}

.sp-scanner-status--error .sp-scanner-status__message {
  background-color: rgba(220, 53, 69, 0.2);
  border: 2px solid var(--sp-color-danger);
  color: #ff6b6b;
}

.sp-scanner-status--loading .sp-scanner-status__message {
  background-color: rgba(13, 202, 240, 0.2);
  border: 2px solid var(--sp-color-info);
  color: var(--sp-color-info);
}

.sp-scanner-status__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* Retry button */
.sp-scanner-retry-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-space-sm);
  margin-top: var(--sp-space-md);
  padding: var(--sp-space-sm) var(--sp-space-lg);
  background-color: var(--sp-color-primary);
  color: white;
  border: 2px solid var(--sp-color-primary-light);
  border-radius: var(--sp-radius-lg);
  font-weight: var(--sp-font-weight-semibold);
  font-size: var(--sp-font-size-base);
  cursor: pointer;
  transition: all var(--sp-transition-fast);
}

.sp-scanner-retry-btn:hover,
.sp-scanner-retry-btn:focus {
  background-color: var(--sp-color-primary-dark);
  border-color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(25, 135, 84, 0.4);
}

.sp-scanner-retry-btn:active {
  transform: translateY(0);
}

.sp-scanner-retry-btn i {
  font-size: 1.2rem;
}

/* Loading spinner */
.sp-scanner-status__spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: sp-spin 0.8s linear infinite;
}

@keyframes sp-spin {
  to { transform: rotate(360deg); }
}

/* =============================================
   RESPONSIVE ADJUSTMENTS
   ============================================= */

@media (min-width: 576px) {
  .sp-scanner-header {
    padding: var(--sp-space-xl);
  }

  .sp-scanner-header__title {
    font-size: var(--sp-font-size-2xl);
  }

  .sp-scanner-content {
    padding: var(--sp-space-2xl) var(--sp-space-lg);
  }

  .sp-scanner-instructions {
    padding: var(--sp-space-xl);
  }
}

@media (min-width: 768px) {
  /* Desktop layout: side-by-side */
  #qr-scanner-modal {
    z-index: 1050; /* Above navbar but below browser dialogs */
  }

  .sp-scanner-content {
    flex-direction: row;
    align-items: flex-start;
    justify-content: center;
    gap: var(--sp-space-2xl);
    max-width: 1200px;
    margin: 0 auto;
  }

  .sp-scanner-instructions {
    flex: 0 0 auto;
    width: 400px;
    margin-bottom: 0;
  }

  .sp-scanner-camera {
    flex: 0 0 auto;
    width: 500px;
    max-width: 500px;
  }

  .sp-scanner-target {
    max-width: 400px;
  }
}

/* =============================================
   LANDSCAPE ORIENTATION
   Optimize for landscape viewing
   ============================================= */

@media (max-height: 500px) and (orientation: landscape) {
  .sp-scanner-header {
    padding: var(--sp-space-sm) var(--sp-space-lg);
  }

  .sp-scanner-header__title {
    font-size: var(--sp-font-size-lg);
  }

  .sp-scanner-close {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
  }

  .sp-scanner-content {
    flex-direction: row;
    gap: var(--sp-space-lg);
    padding: var(--sp-space-md);
  }

  .sp-scanner-instructions {
    max-width: 300px;
    margin-bottom: 0;
  }

  .sp-scanner-camera {
    flex: 1;
    max-width: 400px;
  }
}

/* =============================================
   ACCESSIBILITY
   ============================================= */

.sp-scanner-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus states */
.sp-scanner-close:focus-visible {
  outline: 3px solid white;
  outline-offset: 4px;
}

/* =============================================
   REDUCED MOTION
   ============================================= */

@media (prefers-reduced-motion: reduce) {
  #qr-scanner-modal,
  .sp-scanner-instructions,
  .sp-scanner-target,
  .sp-scanner-line,
  .sp-scanner-status,
  .sp-scanner-close,
  .sp-scanner-flip-btn {
    animation: none !important;
    transition: none !important;
  }

  .sp-scanner-close:hover,
  .sp-scanner-flip-btn:hover {
    transform: none !important;
  }

  .sp-scanner-flip-btn:hover i {
    transform: none !important;
  }
}

/* =============================================
   HIGH CONTRAST MODE
   ============================================= */

@media (prefers-contrast: high) {
  .sp-scanner-header,
  .sp-scanner-instructions {
    border-width: 3px;
  }

  .sp-scanner-target {
    border-width: 4px;
  }

  .sp-scanner-close {
    border-width: 3px;
  }
}

/* =============================================
   PRINT STYLES
   ============================================= */

@media print {
  #qr-scanner-modal {
    display: none !important;
  }
}