:root {
  --bg-dark: #EDF0F4;
  --panel-bg: #ffffff;
  --border-color: #E2E8F0;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --primary-accent: #2F69FF; /* Vibrant Blue from user image */
  --secondary-accent: #3B82F6; /* Secondary Blue */
  --success: #10B981; /* Emerald Green */
  --warning: #F59E0B; /* Amber */
  --danger: #EF4444; /* Rose */
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(47, 105, 255, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 45%);
}

.app-container {
  width: 100%;
  max-width: 1200px;
  min-height: 90vh;
  margin: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
.main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 25px;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
}

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

.logo-badge {
  background: linear-gradient(135deg, var(--primary-accent), var(--secondary-accent));
  color: white;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.main-header h1 {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main-header .subtitle {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-secondary);
}

.system-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.03);
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-indicator.online {
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s infinite;
}

/* Workspace Grid */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 20px;
  flex: 1;
}

@media (max-width: 768px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

/* Glass Card */
.glass-card {
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03), 0 1px 3px rgba(0, 0, 0, 0.02);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.card-header .icon {
  font-size: 1.4rem;
}

.card-header h2 {
  font-size: 1.15rem;
  font-weight: 600;
}

.description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Inputs and Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
}

select, input[type="text"] {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  padding: 12px;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

select:focus, input[type="text"]:focus {
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 3px rgba(47, 105, 255, 0.15);
}

.scanner-input-group {
  display: flex;
  gap: 10px;
}

.scanner-input-group input {
  flex: 1;
}

/* Buttons */
.btn {
  border: none;
  border-radius: 10px;
  padding: 12px 20px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-accent), var(--secondary-accent));
  color: white;
  box-shadow: 0 4px 12px rgba(47, 105, 255, 0.2);
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background: #f1f5f9;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: #e2e8f0;
}

/* Result Box */
.scan-result-box {
  padding: 16px;
  border-radius: 12px;
  animation: slideIn 0.3s ease-out;
  border: 1px solid transparent;
}

.scan-result-box.success {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
  color: #065f46;
}

.scan-result-box.error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.2);
  color: #991b1b;
}

.scan-result-box h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.scan-result-box p {
  font-size: 0.85rem;
}

/* Right Panel: Live Feed */
.feed-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 15px;
}

.title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-group h2 {
  font-size: 1.15rem;
}

.feed-badge {
  background: #e2e8f0;
  color: var(--text-primary);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: bold;
}

.filter-group {
  display: flex;
  gap: 6px;
  background: #f1f5f9;
  padding: 4px;
  border-radius: 8px;
}

.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 6px 12px;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active {
  background: var(--primary-accent);
  color: white;
}

/* Transaction List */
.transaction-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  max-height: 55vh;
  min-height: 350px;
  padding-right: 4px;
}

/* Custom Scrollbar */
.transaction-list::-webkit-scrollbar {
  width: 6px;
}

.transaction-list::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.05);
}

.transaction-list::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
  color: var(--text-secondary);
  gap: 10px;
  padding: 40px 0;
}

.empty-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

/* Transaction Card */
.tx-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform 0.2s, background-color 0.2s, border-color 0.2s;
  animation: slideIn 0.3s ease-out;
  box-shadow: 0 4px 10px rgba(0,0,0,0.01);
}

.tx-card:hover {
  background: #f8fafc;
}

.tx-card.verified {
  border-left: 4px solid var(--success);
}

.tx-card.unverified {
  border-left: 4px solid var(--warning);
}

.tx-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tx-amount {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
}

.tx-sender {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.tx-ref {
  font-size: 0.75rem;
  font-family: monospace;
  color: var(--text-secondary);
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  width: fit-content;
}

.tx-status-area {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.badge {
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: bold;
}

.badge.unverified {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

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

.tx-time {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.hidden {
  display: none !important;
}

/* Animations */
@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

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