/* ===================================
   Industrial Barcode Scanner Styles
   Dark Theme - High Contrast
   =================================== */

/* ===== CSS Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors - Industrial Dark Theme */
  --bg-primary: #1a1a1a;
  --bg-secondary: #2a2a2a;
  --bg-tertiary: #333333;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-disabled: #666666;

  /* Accent Colors */
  --color-success: #00ff00;
  --color-success-dark: #00cc00;
  --color-error: #ff3333;
  --color-error-dark: #cc0000;
  --color-warning: #ffaa00;
  --color-info: #2196f3;

  /* UI Elements */
  --border-color: #444444;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Touch Targets */
  --touch-target: 60px;
  --touch-target-sm: 48px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  min-height: 100vh;
  min-height: -webkit-fill-available;
}

/* ===== Layout ===== */
#app-container {
  width: 100vw;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  position: relative;
}

.view {
  width: 100%;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  display: none;
  flex-direction: column;
}

.view.active {
  display: flex;
}

/* ===== Offline Banner ===== */
.offline-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--color-warning);
  color: var(--bg-primary);
  padding: var(--spacing-sm);
  text-align: center;
  font-weight: 600;
  z-index: 9999;
  font-size: 14px;
}

.https-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--color-error);
  color: var(--text-primary);
  padding: var(--spacing-sm);
  text-align: center;
  font-weight: 600;
  z-index: 9999;
  font-size: 14px;
}

/* ===== Camera View ===== */
#camera-view {
  background-color: var(--bg-primary);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100vh;
  height: -webkit-fill-available;
  overflow: hidden;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background-color: rgba(26, 26, 26, 0.8);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.top-spacer {
  flex: 1;
}

.viewport {
  flex: 1;
  position: relative;
  background-color: #000000;
  overflow: hidden;
}

.scanner-container {
  width: 100%;
  height: 100%;
}

.scanner-container video,
.scanner-container canvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Scan Reticle Overlay ===== */
.reticle-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 50;
}

.reticle-box {
  position: relative;
  width: 280px;
  height: 180px;
  border: 2px solid rgba(0, 255, 0, 0.5);
  border-radius: 8px;
}

.reticle-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-success);
}

.reticle-corner.tl {
  top: -3px;
  left: -3px;
  border-right: none;
  border-bottom: none;
  border-top-left-radius: 8px;
}

.reticle-corner.tr {
  top: -3px;
  right: -3px;
  border-left: none;
  border-bottom: none;
  border-top-right-radius: 8px;
}

.reticle-corner.bl {
  bottom: -3px;
  left: -3px;
  border-right: none;
  border-top: none;
  border-bottom-left-radius: 8px;
}

.reticle-corner.br {
  bottom: -3px;
  right: -3px;
  border-left: none;
  border-top: none;
  border-bottom-right-radius: 8px;
}

.scan-line {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-success),
    transparent
  );
  animation: scan-animation 2s ease-in-out infinite;
}

@keyframes scan-animation {
  0%,
  100% {
    transform: translateY(-90px);
    opacity: 0.3;
  }
  50% {
    transform: translateY(90px);
    opacity: 1;
  }
}

/* ===== Camera Info ===== */
.camera-info {
  padding: var(--spacing-lg) var(--spacing-md);
  background-color: rgba(26, 26, 26, 0.8);
  backdrop-filter: blur(10px);
  text-align: center;
}

.instruction-text {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.scan-counter {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.api-usage {
  font-size: 12px;
  color: var(--text-disabled);
}

/* ===== Bottom Controls ===== */
.bottom-controls {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) var(--spacing-md);
  padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
  background-color: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
}

.control-btn {
  flex: 1;
  height: var(--touch-target);
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.control-btn.primary {
  background-color: var(--color-success);
  color: var(--bg-primary);
}

.control-btn.primary:active {
  background-color: var(--color-success-dark);
  transform: scale(0.98);
}

.control-btn.secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.control-btn.secondary:active {
  background-color: var(--bg-secondary);
  transform: scale(0.98);
}

/* ===== Icon Buttons ===== */
.icon-btn {
  width: var(--touch-target-sm);
  height: var(--touch-target-sm);
  border: none;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
}

.icon-btn:active {
  background-color: rgba(255, 255, 255, 0.2);
  transform: scale(0.95);
}

.icon-btn.active {
  background-color: var(--color-success);
  color: var(--bg-primary);
}

/* ===== Scan Flash Feedback ===== */
.scan-flash {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-success);
  opacity: 0;
  pointer-events: none;
  z-index: 200;
}

.scan-flash.success {
  animation: flash-success 300ms ease-out;
}

.scan-flash.error {
  background-color: var(--color-error);
  animation: flash-error 300ms ease-out;
}

@keyframes flash-success {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0.4;
  }
  100% {
    opacity: 0;
  }
}

@keyframes flash-error {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
  }
}

/* ===== History View ===== */
#history-view {
  background-color: var(--bg-primary);
}

.app-header {
  display: flex;
  align-items: center;
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  box-shadow: var(--shadow);
  min-height: var(--touch-target);
}

.app-title {
  flex: 1;
  text-align: center;
  font-size: 20px;
  font-weight: 600;
}

/* ===== Stats Summary ===== */
.stats-summary {
  display: flex;
  padding: var(--spacing-lg) var(--spacing-md);
  background-color: var(--bg-secondary);
  gap: var(--spacing-md);
}

.stat-item {
  flex: 1;
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-success);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== Action Buttons ===== */
.action-buttons {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--bg-primary);
}

.action-btn {
  flex: 1;
  height: var(--touch-target-sm);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-fast);
}

.action-btn:active {
  background-color: var(--bg-secondary);
  transform: scale(0.98);
}

.action-btn.danger {
  border-color: var(--color-error);
  color: var(--color-error);
}

.action-btn.danger:active {
  background-color: rgba(255, 51, 51, 0.1);
}

/* ===== History List ===== */
.history-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--spacing-md);
  padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
  background-color: var(--bg-primary);
}

.history-item {
  background-color: var(--bg-secondary);
  border-radius: 8px;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid var(--color-success);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.history-item.failed {
  border-left-color: var(--color-error);
  opacity: 0.7;
}

.history-item:active {
  background-color: var(--bg-tertiary);
  transform: scale(0.99);
}

.history-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.history-upc {
  font-size: 18px;
  font-weight: 600;
  font-family: "Courier New", monospace;
  color: var(--text-primary);
}

.history-status {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.history-status.success {
  background-color: rgba(0, 255, 0, 0.2);
  color: var(--color-success);
}

.history-status.failed {
  background-color: rgba(255, 51, 51, 0.2);
  color: var(--color-error);
}

.history-product-name {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.history-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-disabled);
}

.empty-state {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  color: var(--text-disabled);
}

.empty-state svg {
  opacity: 0.3;
  margin-bottom: var(--spacing-md);
}

.empty-state p {
  margin-bottom: var(--spacing-xs);
}

.empty-subtitle {
  font-size: 14px;
}

/* ===== Start Scan CTA ===== */
.start-scan-cta {
  padding: var(--spacing-lg) var(--spacing-md);
  padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
  background-color: var(--bg-primary);
}

.cta-button {
  width: 100%;
  height: 70px;
  border: none;
  border-radius: 12px;
  background-color: var(--color-success);
  color: var(--bg-primary);
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
}

.cta-button:active {
  background-color: var(--color-success-dark);
  transform: scale(0.98);
}

/* ===== Modal ===== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.modal-content.small {
  max-width: 400px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 600;
}

.modal-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--spacing-lg) var(--spacing-md);
  padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
}

/* ===== Product Details ===== */
.product-image {
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 0 auto var(--spacing-lg);
  display: block;
  border-radius: 8px;
}

.product-field {
  margin-bottom: var(--spacing-md);
}

.product-label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

.product-value {
  font-size: 16px;
  color: var(--text-primary);
}

.product-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  margin-right: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

/* ===== Manual Entry ===== */
.modal-instruction {
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

.manual-input {
  width: 100%;
  height: var(--touch-target);
  background-color: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  padding: 0 var(--spacing-md);
  font-size: 20px;
  font-family: "Courier New", monospace;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.manual-input:focus {
  outline: none;
  border-color: var(--color-success);
}

.manual-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.key-btn {
  height: var(--touch-target);
  border: none;
  border-radius: 8px;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.key-btn:active {
  background-color: var(--bg-primary);
  transform: scale(0.95);
}

.key-btn.secondary {
  font-size: 16px;
  background-color: var(--bg-primary);
}

.submit-btn {
  width: 100%;
  height: var(--touch-target);
  border: none;
  border-radius: 8px;
  background-color: var(--color-success);
  color: var(--bg-primary);
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.submit-btn:active {
  background-color: var(--color-success-dark);
  transform: scale(0.98);
}

/* ===== Loading Overlay ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(26, 26, 26, 0.9);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--bg-tertiary);
  border-top-color: var(--color-success);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Toast Notification ===== */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  opacity: 0;
  transition: all var(--transition-normal);
  max-width: 90%;
  text-align: center;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  border-left: 4px solid var(--color-success);
}

.toast.error {
  border-left: 4px solid var(--color-error);
}

.toast.info {
  border-left: 4px solid var(--color-info);
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-color);
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
  .stats-summary {
    padding: var(--spacing-md);
  }

  .stat-value {
    font-size: 24px;
  }

  .reticle-box {
    width: 240px;
    height: 150px;
  }
}

@media (min-width: 769px) {
  #app-container {
    max-width: 480px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
  }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== Print Styles ===== */
@media print {
  body {
    background: white;
    color: black;
  }

  .top-bar,
  .bottom-controls,
  .action-buttons,
  .start-scan-cta {
    display: none;
  }
}