/* ==============================================
   FOOD TRACEABILITY DEMO - DESIGN SYSTEM
   Modern, Premium Interface with Glassmorphism
   ============================================== */

/* ========== CSS VARIABLES ========== */
:root {
  /* Dark Theme Colors */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2234;
  --bg-card: rgba(26, 34, 52, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.05);
  
  /* Accent Colors */
  --accent-primary: #14b8a6;    /* Teal */
  --accent-secondary: #06b6d4;  /* Cyan */
  --accent-warning: #f59e0b;    /* Amber */
  --accent-danger: #ef4444;     /* Red */
  --accent-success: #22c55e;    /* Green */
  --accent-info: #8b5cf6;       /* Purple */
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #14b8a6 0%, #06b6d4 100%);
  --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #fb923c 100%);
  --gradient-danger: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
  --gradient-success: linear-gradient(135deg, #22c55e 0%, #10b981 100%);
  --gradient-dark: linear-gradient(180deg, #0a0e17 0%, #111827 100%);
  
  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  /* Borders & Shadows */
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(20, 184, 166, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* ========== RESET & BASE ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gradient-dark);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(20, 184, 166, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

p { color: var(--text-secondary); }

/* ========== LAYOUT ========== */
.app-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.main-content {
  flex: 1;
  margin-left: 260px;
  padding: var(--spacing-xl);
  min-height: 100vh;
}

/* ========== SIDEBAR COMPONENTS ========== */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-xl);
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-glow);
}

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  list-style: none;
  flex: 1;
}

.nav-item {
  margin-bottom: var(--spacing-sm);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.nav-link:hover, .nav-link.active {
  background: var(--bg-glass);
  color: var(--text-primary);
}

.nav-link.active::before {
  transform: scaleY(1);
}

.nav-link.active {
  color: var(--accent-primary);
}

.nav-icon {
  font-size: 1.25rem;
  width: 24px;
  text-align: center;
}

.nav-badge {
  margin-left: auto;
  background: var(--accent-danger);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ========== HEADER ========== */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.page-title {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.page-title h1 {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.page-title p {
  font-size: 0.875rem;
}

.header-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

/* ========== CARDS ========== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: rgba(20, 184, 166, 0.3);
  box-shadow: var(--shadow-md);
}

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

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ========== STAT CARDS ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--gradient-primary));
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-card.warning { --card-accent: var(--gradient-warning); }
.stat-card.danger { --card-accent: var(--gradient-danger); }
.stat-card.success { --card-accent: var(--gradient-success); }

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.stat-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-glass);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-trend {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  font-weight: 500;
}

.stat-trend.up { color: var(--accent-success); }
.stat-trend.down { color: var(--accent-danger); }

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(20, 184, 166, 0.4);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-danger {
  background: var(--gradient-danger);
  color: white;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ========== SUPPLY CHAIN VISUALIZATION ========== */
.supply-chain-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl) 0;
  position: relative;
}

.supply-chain-flow::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 80px;
  right: 80px;
  height: 4px;
  background: linear-gradient(90deg, 
    var(--accent-primary) 0%, 
    var(--accent-secondary) 25%,
    var(--accent-info) 50%,
    var(--accent-warning) 75%,
    var(--accent-success) 100%
  );
  border-radius: var(--radius-full);
  z-index: 0;
}

.chain-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  z-index: 1;
  cursor: pointer;
  transition: all var(--transition-base);
}

.chain-node:hover {
  transform: scale(1.05);
}

.node-icon {
  width: 72px;
  height: 72px;
  background: var(--bg-secondary);
  border: 3px solid var(--node-color, var(--accent-primary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 0 20px rgba(var(--node-glow, 20, 184, 166), 0.3);
  transition: all var(--transition-base);
}

.chain-node:hover .node-icon {
  box-shadow: 0 0 30px rgba(var(--node-glow, 20, 184, 166), 0.5);
}

.chain-node.active .node-icon {
  animation: nodeGlow 2s infinite;
}

@keyframes nodeGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(20, 184, 166, 0.3); }
  50% { box-shadow: 0 0 40px rgba(20, 184, 166, 0.6); }
}

.node-label {
  font-weight: 600;
  font-size: 0.875rem;
  text-align: center;
}

.node-sublabel {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Node color variations */
.chain-node.supplier .node-icon { --node-color: var(--accent-primary); }
.chain-node.warehouse .node-icon { --node-color: var(--accent-secondary); }
.chain-node.kitchen .node-icon { --node-color: var(--accent-info); }
.chain-node.restaurant .node-icon { --node-color: var(--accent-warning); }
.chain-node.consumer .node-icon { --node-color: var(--accent-success); }

/* ========== TIMELINE ========== */
.timeline {
  position: relative;
  padding-left: var(--spacing-2xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--spacing-xl);
  padding-left: var(--spacing-lg);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--spacing-2xl) + 4px);
  width: 16px;
  height: 16px;
  background: var(--accent-primary);
  border-radius: 50%;
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 12px rgba(20, 184, 166, 0.4);
}

.timeline-dot.warning { background: var(--accent-warning); }
.timeline-dot.danger { background: var(--accent-danger); }
.timeline-dot.success { background: var(--accent-success); }

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
}

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

.timeline-title {
  font-weight: 600;
}

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

.timeline-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ========== NOTIFICATION TOAST ========== */
.toast-container {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  min-width: 320px;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  display: flex;
  gap: var(--spacing-md);
  animation: slideIn 0.4s ease;
  backdrop-filter: blur(20px);
}

.toast.warning {
  border-left: 4px solid var(--accent-warning);
}

.toast.danger {
  border-left: 4px solid var(--accent-danger);
}

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

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOut {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

.toast.removing {
  animation: slideOut 0.3s ease forwards;
}

.toast-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.toast-message {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.toast-close:hover {
  color: var(--text-primary);
}

/* ========== TABLES ========== */
.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.data-table tr:hover td {
  background: var(--bg-glass);
}

.data-table td {
  font-size: 0.875rem;
}

/* ========== STATUS BADGES ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--accent-success);
}

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

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
}

.badge-info {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-info);
}

.badge-neutral {
  background: var(--bg-glass);
  color: var(--text-secondary);
}

/* ========== GRID LAYOUTS ========== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

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

.grid-2-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-lg);
}

/* ========== SEARCH & FILTERS ========== */
.search-box {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  flex: 1;
  max-width: 400px;
  transition: all var(--transition-base);
}

.search-box:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.search-box input {
  background: none;
  border: none;
  color: var(--text-primary);
  flex: 1;
  outline: none;
  font-size: 0.875rem;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

/* ========== MODAL ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

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

.modal-body {
  padding: var(--spacing-xl);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  padding: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
}

/* ========== PROGRESS BAR ========== */
.progress-bar {
  height: 8px;
  background: var(--bg-glass);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* ========== BATCH CARD ========== */
.batch-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  cursor: pointer;
  transition: all var(--transition-base);
}

.batch-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.batch-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.batch-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  color: var(--accent-primary);
}

.batch-product {
  font-weight: 600;
  margin-top: var(--spacing-xs);
}

.batch-meta {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.batch-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* ========== QUALITY ALERT ========== */
.quality-alert {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(249, 115, 22, 0.1) 100%);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.quality-alert-icon {
  font-size: 2rem;
  color: var(--accent-danger);
}

.quality-alert-content h3 {
  color: var(--accent-danger);
  margin-bottom: var(--spacing-sm);
}

/* ========== ANIMATIONS ========== */
.fade-in {
  animation: fadeIn 0.5s ease;
}

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

.slide-up {
  animation: slideUp 0.4s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== PAGE SECTIONS ========== */
.page-section {
  display: none;
}

.page-section.active {
  display: block;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
    padding: var(--spacing-lg);
  }
  
  .grid-2-1 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .supply-chain-flow {
    flex-direction: column;
    gap: var(--spacing-xl);
  }
  
  .supply-chain-flow::before {
    top: 80px;
    bottom: 80px;
    left: 50%;
    width: 4px;
    height: auto;
    transform: translateX(-50%);
  }
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ========== PROCUREMENT SPECIFIC ========== */
.order-form {
  display: grid;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input, .form-select {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all var(--transition-base);
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

/* ========== BACK TRACE FLOW ========== */
.backtrace-flow {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  position: relative;
}

.backtrace-step {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  position: relative;
  transition: all var(--transition-base);
}

.backtrace-step.highlighted {
  border-color: var(--accent-danger);
  background: rgba(239, 68, 68, 0.1);
}

.backtrace-arrow {
  position: absolute;
  left: 50%;
  bottom: -20px;
  transform: translateX(-50%);
  color: var(--accent-danger);
  font-size: 1.5rem;
  animation: bounceDown 1s infinite;
}

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(5px); }
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-info {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-sm);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ========== AFFECTED LOCATIONS ========== */
.affected-locations {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.affected-location {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.affected-icon {
  font-size: 1.25rem;
}

.affected-name {
  font-weight: 500;
  font-size: 0.875rem;
}

.affected-count {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--accent-danger);
}