:root {
  --bg-primary: #0b0f17;
  --bg-card: #131b2a;
  --bg-card-hover: #1a253a;
  --bg-input: #1a2336;
  --border-color: #24324d;
  --border-focus: #3b82f6;

  --text-main: #f3f4f6;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-primary: #10b981; /* Emerald/Cargo active */
  --accent-primary-hover: #059669;
  --accent-blue: #3b82f6;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 20px rgba(16, 185, 129, 0.3);

  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 12px;
}

.app-container {
  width: 100%;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 1.8rem;
  background: rgba(16, 185, 129, 0.15);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.app-header h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: #fff;
}

.subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.icon-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.15rem;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-blue);
  transform: translateY(-1px);
}

/* Context / Batch Bar */
.context-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.context-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.input-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.input-field label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.input-field input {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  outline: none;
  transition: border 0.2s;
}

.input-field input:focus {
  border-color: var(--accent-blue);
}

/* Scanner Section */
.camera-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.reader-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

#qr-reader video {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  border-radius: var(--radius-md);
}

/* Hide default html5-qrcode UI artifacts if any */
#qr-reader img, #qr-reader span, #qr-reader button:not(.custom-btn) {
  display: none !important;
}

/* Scanner Laser Animation */
.scanner-laser {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, #10b981, #34d399, transparent);
  box-shadow: 0 0 12px #10b981, 0 0 20px #10b981;
  animation: scanning 2.2s infinite ease-in-out;
  pointer-events: none;
  z-index: 10;
  display: none;
}

.scanner-laser.active {
  display: block;
}

@keyframes scanning {
  0% { top: 8%; opacity: 0.3; }
  50% { top: 92%; opacity: 1; }
  100% { top: 8%; opacity: 0.3; }
}

/* Corner Guides */
.scanner-guides {
  position: absolute;
  inset: 15%;
  pointer-events: none;
  z-index: 5;
}

.scanner-guides .corner {
  position: absolute;
  width: 28px;
  height: 28px;
  border-color: #10b981;
  border-style: solid;
}

.top-left { top: 0; left: 0; border-width: 3px 0 0 3px; border-top-left-radius: 6px; }
.top-right { top: 0; right: 0; border-width: 3px 3px 0 0; border-top-right-radius: 6px; }
.bottom-left { bottom: 0; left: 0; border-width: 0 0 3px 3px; border-bottom-left-radius: 6px; }
.bottom-right { bottom: 0; right: 0; border-width: 0 3px 3px 0; border-bottom-right-radius: 6px; }

/* Camera Placeholder */
.camera-placeholder {
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 23, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
  padding: 20px;
  z-index: 8;
}

.placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.8;
}

.camera-placeholder p {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.camera-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
}

/* Buttons */
.btn {
  font-family: var(--font-sans);
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--accent-primary);
  color: #042718;
  padding: 10px 20px;
  font-size: 0.9rem;
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: var(--accent-blue);
  color: #fff;
  padding: 10px 16px;
  font-size: 0.85rem;
}

.btn-outline {
  background: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
}

.btn-danger-outline {
  background: transparent;
  color: var(--accent-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger-outline:hover {
  background: rgba(239, 68, 68, 0.15);
}

.btn-accent {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.btn-accent:hover {
  background: rgba(59, 130, 246, 0.25);
}

.btn-sm {
  padding: 8px 12px;
  font-size: 0.78rem;
}

.btn-xs {
  padding: 5px 8px;
  font-size: 0.72rem;
}

.btn-block {
  width: 100%;
}

/* Manual Entry Form */
.manual-entry-card {
  margin-top: -4px;
}

.manual-form {
  display: flex;
  gap: 8px;
}

.manual-form input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  outline: none;
}

.manual-form input:focus {
  border-color: var(--accent-blue);
}

/* Status Toast */
.status-toast {
  background: #064e3b;
  border: 1px solid #059669;
  color: #ecfdf5;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  animation: slideDown 0.3s ease;
}

.status-toast.error {
  background: #7f1d1d;
  border-color: #dc2626;
  color: #fef2f2;
}

.status-toast.warning {
  background: #78350f;
  border-color: #d97706;
  color: #fffbeb;
}

.status-toast.hidden {
  display: none;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
}

.stat-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 2px;
}

.stat-success .stat-number { color: var(--accent-primary); }
.stat-warning .stat-number { color: var(--accent-warning); }

/* History Section */
.history-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.history-header h2 {
  font-size: 0.95rem;
  font-weight: 700;
}

.history-actions {
  display: flex;
  gap: 6px;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 280px;
  overflow-y: auto;
  padding-right: 2px;
}

/* Scrollbar */
.history-list::-webkit-scrollbar {
  width: 4px;
}
.history-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.history-item {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.item-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.item-desc {
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex;
  gap: 8px;
}

.item-status-badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 20px;
  white-space: nowrap;
}

.status-synced {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-sending {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.status-pending {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.empty-state {
  text-align: center;
  padding: 24px 10px;
  color: var(--text-muted);
}
.empty-state small {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1000;
}

.modal-overlay.hidden {
  display: none;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  padding: 16px 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.alert-box {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.8rem;
  color: #bfdbfe;
  line-height: 1.4;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-group input[type="url"],
.form-group input[type="text"] {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent-blue);
}

.form-group small {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.setup-guide {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.setup-guide h4 {
  font-size: 0.82rem;
  color: var(--accent-primary);
}

.setup-guide ol {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  line-height: 1.4;
}

.checkbox-group {
  gap: 8px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-main);
  cursor: pointer;
}

.modal-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--bg-card);
}