/**
 * Modern Barcode & QR Code Scanner Stylesheet
 * 100% Responsive, High-Contrast & Premium UI
 */

:root {
  --bcode-primary: #0284c7;
  --bcode-primary-dark: #0369a1;
  --bcode-primary-light: #e0f2fe;
  --bcode-accent: #10b981;
  --bcode-accent-light: #d1fae5;
  --bcode-danger: #ef4444;
  --bcode-surface: #ffffff;
  --bcode-bg: #f8fafc;
  --bcode-border: #e2e8f0;
  --bcode-text-dark: #0f172a;
  --bcode-text-body: #334155;
  --bcode-text-muted: #64748b;
  --bcode-radius-lg: 16px;
  --bcode-radius-md: 10px;
  --bcode-radius-sm: 6px;
  --bcode-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
}

/* Container */
.barcode-container {
  width: 100%;
  margin-bottom: 30px;
}

/* Hero Section */
.barcode-hero {
  text-align: center;
  padding: 30px 20px 25px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 1.5px solid var(--bcode-border);
  border-radius: var(--bcode-radius-lg);
  box-shadow: var(--bcode-shadow);
  margin-bottom: 24px;
}

.barcode-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--bcode-primary-light);
  color: var(--bcode-primary-dark);
  font-size: 13px;
  font-weight: 700;
  border-radius: 50px;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.barcode-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--bcode-text-dark);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.barcode-title-gradient {
  background: linear-gradient(135deg, #0284c7 0%, #0d9488 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.barcode-subtitle {
  font-size: 15px;
  color: var(--bcode-text-body);
  max-width: 680px;
  margin: 0 auto 18px;
  line-height: 1.6;
}

.barcode-tags-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.barcode-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: #ffffff;
  border: 1px solid var(--bcode-border);
  border-radius: 50px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--bcode-text-body);
}

/* Scanner Studio Card */
.barcode-card {
  background: #ffffff;
  border: 1.5px solid var(--bcode-border);
  border-radius: var(--bcode-radius-lg);
  box-shadow: var(--bcode-shadow);
  padding: 24px;
  margin-bottom: 30px;
}

/* Tabs / Switcher */
.barcode-tabs-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 22px;
}

.barcode-nav-tabs {
  display: inline-flex;
  background: #f1f5f9;
  padding: 4px;
  border-radius: var(--bcode-radius-md);
  border: 1px solid var(--bcode-border);
}

.barcode-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--bcode-text-body);
  background: transparent;
  border: none;
  border-radius: var(--bcode-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.barcode-tab-btn:hover {
  color: var(--bcode-primary);
}

.barcode-tab-btn.active {
  background: #ffffff;
  color: var(--bcode-primary);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.08);
}

/* Mode Panels */
.barcode-panel {
  display: none;
}

.barcode-panel.active {
  display: block;
  animation: panelFadeIn 0.25s ease-out;
}

@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Camera Scanner Viewport */
.camera-viewport-card {
  max-width: 520px;
  margin: 0 auto;
  position: relative;
  background: #0f172a;
  border-radius: var(--bcode-radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.25);
}

.camera-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: #1e293b;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-size: 13.5px;
  font-weight: 600;
}

.camera-select-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 240px;
}

.camera-select-input {
  background: #0f172a;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--bcode-radius-sm);
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 500;
  outline: none;
  width: 100%;
}

.camera-viewfinder {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #090d16;
}

#reader {
  width: 100% !important;
  border: none !important;
}

#reader video {
  width: 100% !important;
  max-height: 420px;
  object-fit: cover;
  border-radius: 0;
}

/* Animated Laser Scanner Overlay */
.laser-guide-box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 250px;
  height: 250px;
  pointer-events: none;
  border: 2px dashed rgba(2, 132, 199, 0.5);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 0 1000px rgba(0, 0, 0, 0.35);
}

.laser-guide-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: #0284c7;
  border-style: solid;
}

.corner-tl { top: 0; left: 0; border-width: 4px 0 0 4px; }
.corner-tr { top: 0; right: 0; border-width: 4px 4px 0 0; }
.corner-bl { bottom: 0; left: 0; border-width: 0 0 4px 4px; }
.corner-br { bottom: 0; right: 0; border-width: 0 4px 4px 0; }

.laser-sweep-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, #38bdf8 50%, transparent 100%);
  box-shadow: 0 0 12px #38bdf8;
  animation: laserSweep 2s ease-in-out infinite alternate;
}

@keyframes laserSweep {
  0% { top: 4px; opacity: 0.9; }
  100% { top: calc(100% - 7px); opacity: 0.9; }
}

.camera-action-footer {
  padding: 16px;
  background: #1e293b;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

/* Upload Viewport */
.upload-viewport-card {
  max-width: 560px;
  margin: 0 auto;
}

.barcode-dropzone {
  border: 2.5px dashed var(--bcode-border);
  border-radius: var(--bcode-radius-lg);
  padding: 40px 20px;
  text-align: center;
  background: #f8fafc;
  cursor: pointer;
  transition: all 0.2s ease;
}

.barcode-dropzone:hover,
.barcode-dropzone.dragover {
  border-color: var(--bcode-primary);
  background: var(--bcode-primary-light);
}

.dropzone-icon {
  font-size: 48px;
  color: var(--bcode-primary);
  margin-bottom: 12px;
  display: block;
}

.dropzone-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--bcode-text-dark);
  margin-bottom: 6px;
}

.dropzone-sub {
  font-size: 13.5px;
  color: var(--bcode-text-muted);
  margin-bottom: 14px;
}

.btn-file-select {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bcode-primary);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  padding: 9px 20px;
  border-radius: var(--bcode-radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-file-select:hover {
  background: var(--bcode-primary-dark);
  transform: translateY(-1px);
}

/* Image Preview Container */
.upload-preview-wrap {
  display: none;
  margin-top: 20px;
  border: 1.5px solid var(--bcode-border);
  border-radius: var(--bcode-radius-md);
  padding: 14px;
  background: #f8fafc;
  text-align: center;
}

.upload-preview-img {
  max-width: 100%;
  max-height: 280px;
  border-radius: var(--bcode-radius-sm);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

/* Sample Barcodes Bar */
.sample-barcodes-bar {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--bcode-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--bcode-text-muted);
}

.sample-chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--bcode-primary);
  background: var(--bcode-primary-light);
  border: 1px solid rgba(2, 132, 199, 0.2);
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sample-chip-btn:hover {
  background: var(--bcode-primary);
  color: #ffffff;
}

/* Result Box */
.barcode-result-card {
  display: none;
  max-width: 600px;
  margin: 24px auto 0;
  border: 2px solid var(--bcode-accent);
  border-radius: var(--bcode-radius-lg);
  background: #ffffff;
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.12);
  overflow: hidden;
  animation: resultSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes resultSlideUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-card-header {
  background: var(--bcode-accent-light);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.result-status-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 800;
  color: #065f46;
}

.result-format-badge {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #ffffff;
  color: #047857;
  padding: 3px 10px;
  border-radius: 50px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.result-card-body {
  padding: 20px;
}

.result-content-box {
  background: #f8fafc;
  border: 1.5px solid var(--bcode-border);
  border-radius: var(--bcode-radius-md);
  padding: 16px;
  font-size: 15.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-weight: 600;
  color: var(--bcode-text-dark);
  word-break: break-all;
  max-height: 180px;
  overflow-y: auto;
  line-height: 1.5;
  margin-bottom: 18px;
}

.result-actions-flex {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.btn-result-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  font-size: 13.5px;
  font-weight: 700;
  border-radius: var(--bcode-radius-md);
  text-decoration: none !important;
  cursor: pointer;
  transition: all 0.18s ease;
  border: none;
}

.btn-result-copy {
  background: var(--bcode-primary);
  color: #ffffff !important;
}

.btn-result-copy:hover {
  background: var(--bcode-primary-dark);
}

.btn-result-link {
  background: var(--bcode-accent);
  color: #ffffff !important;
}

.btn-result-link:hover {
  background: #059669;
}

.btn-result-search {
  background: #f1f5f9;
  color: var(--bcode-text-body) !important;
  border: 1px solid var(--bcode-border);
}

.btn-result-search:hover {
  background: #e2e8f0;
}

.btn-result-reset {
  background: #fee2e2;
  color: #b91c1c !important;
}

.btn-result-reset:hover {
  background: #fecaca;
}

/* Alert Notification */
.barcode-alert {
  display: none;
  padding: 12px 18px;
  border-radius: var(--bcode-radius-md);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
  align-items: center;
  gap: 10px;
}

.barcode-alert.error {
  display: flex;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
}

.barcode-alert.info {
  display: flex;
  background: var(--bcode-primary-light);
  border: 1px solid #bae6fd;
  color: var(--bcode-primary-dark);
}

/* Educational Content Section */
.barcode-article {
  background: #ffffff;
  border: 1.5px solid var(--bcode-border);
  border-radius: var(--bcode-radius-lg);
  padding: 36px 32px;
  box-shadow: var(--bcode-shadow);
  color: var(--bcode-text-body);
  line-height: 1.7;
}

.barcode-article h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--bcode-text-dark);
  margin: 32px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid #f1f5f9;
}

.barcode-article h2:first-of-type {
  margin-top: 0;
}

.barcode-article h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--bcode-text-dark);
  margin: 20px 0 10px;
}

.barcode-article p {
  font-size: 15px;
  margin-bottom: 16px;
  color: var(--bcode-text-body);
}

.barcode-article ul {
  padding-left: 24px;
  margin-bottom: 20px;
}

.barcode-article ul li {
  margin-bottom: 8px;
  font-size: 14.5px;
}

/* Comparison Cards Grid */
.barcode-types-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0;
}

.barcode-type-card {
  background: #f8fafc;
  border: 1.5px solid var(--bcode-border);
  border-radius: var(--bcode-radius-md);
  padding: 20px;
}

.barcode-type-card h3 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--bcode-primary);
}

/* Step Guides */
.guide-step-card {
  background: #f8fafc;
  border-left: 4px solid var(--bcode-primary);
  border-radius: 0 var(--bcode-radius-md) var(--bcode-radius-md) 0;
  padding: 16px 20px;
  margin-bottom: 18px;
}

/* FAQ Accordion Cards */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 20px;
}

.faq-card {
  background: #f8fafc;
  border: 1.5px solid var(--bcode-border);
  border-radius: var(--bcode-radius-md);
  padding: 18px 20px;
  transition: all 0.2s ease;
}

.faq-card:hover {
  border-color: var(--bcode-primary);
  background: #ffffff;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}

.faq-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--bcode-text-dark);
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.faq-card h3 i {
  color: var(--bcode-primary);
}

.faq-card p {
  margin: 0;
  font-size: 14px;
  color: var(--bcode-text-body);
}

/* Responsive */
@media (max-width: 768px) {
  .barcode-title {
    font-size: 1.7rem;
  }
  .barcode-types-grid {
    grid-template-columns: 1fr;
  }
  .barcode-article {
    padding: 24px 18px;
  }
  .camera-viewport-card {
    border-radius: var(--bcode-radius-md);
  }
  .laser-guide-box {
    width: 200px;
    height: 200px;
  }
}