/* --- SHELF ASSISTANT DESIGN SYSTEM --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  --panel-bg: rgba(30, 41, 59, 0.7);
  --panel-border: rgba(99, 102, 241, 0.15);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --color-emerald: #10b981;
  --color-indigo: #6366f1;
  --color-sky: #0ea5e9;
  --color-rose: #f43f5e;
  --color-amber: #f59e0b;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  padding: 20px;
  overflow-x: hidden;
}

/* Header Container */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding: 16px 24px;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

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

.brand h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(to right, #10b981, #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.status-pills {
  display: flex;
  gap: 12px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
}

.pill-online {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-emerald);
  border-color: rgba(16, 185, 129, 0.3);
}

.pill-offline {
  background: rgba(244, 63, 94, 0.1);
  color: var(--color-rose);
  border-color: rgba(244, 63, 94, 0.3);
}

.pill-sync {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-indigo);
  border-color: rgba(99, 102, 241, 0.3);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
  animation: pulse 1.5s infinite alternate;
}

/* Grid Layout */
.app-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

@media (max-width: 968px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
}

/* Glassmorphic Panel Card */
.card {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card h2 {
  font-size: 20px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 12px;
}

/* Scanner Frame styling */
#qr-reader-container {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  border: 2px dashed rgba(99, 102, 241, 0.4);
  background: rgba(15, 23, 42, 0.8);
  min-height: 250px;
}

#qr-reader {
  border: none !important;
}

/* Custom interactive simulator dashboard */
.simulator-panel {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 16px;
}

.simulator-title {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

select, input {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  transition: all 0.3s;
}

select:focus, input:focus {
  border-color: var(--color-indigo);
  outline: none;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

.btn {
  font-family: inherit;
  background: var(--color-indigo);
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.3s;
}

.btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-success {
  background: var(--color-emerald);
}

.btn-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* History Log List styling */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 4px;
}

/* Webkit scrollbars */
.history-list::-webkit-scrollbar {
  width: 6px;
}
.history-list::-webkit-scrollbar-track {
  background: transparent;
}
.history-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.history-item {
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  animation: slideIn 0.3s ease-out;
  transition: transform 0.2s;
}

.history-item:hover {
  transform: scale(1.01);
  background: rgba(15, 23, 42, 0.6);
}

.item-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.item-barcode {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.5px;
}

.item-details {
  display: flex;
  gap: 8px;
  align-items: center;
}

.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.badge-std {
  background: rgba(14, 165, 233, 0.15);
  color: var(--color-sky);
}

.badge-var {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-emerald);
}

.badge-synced {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-emerald);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-amber);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.item-time {
  font-size: 12px;
  color: var(--text-secondary);
}

.item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.item-weight {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-emerald);
}

/* Empty log state */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
  font-size: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

/* Settings tab and popup wrapper */
.settings-section {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 16px;
}

/* PWA Install Promo bar */
.install-banner {
  background: linear-gradient(90deg, #6366f1 0%, #10b981 100%);
  border-radius: 12px;
  padding: 16px;
  display: none; /* Controlled by JS */
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.install-text h3 {
  font-size: 16px;
  font-weight: 600;
}
.install-text p {
  font-size: 13px;
  opacity: 0.9;
}

/* Animations */
@keyframes pulse {
  0% { opacity: 0.3; transform: scale(0.9); }
  100% { opacity: 1; transform: scale(1.1); }
}

@keyframes slideIn {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}