/* ==========================================================================
   MBTracker — Modern Dark Theme Design System
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-primary: #0a0d14;
  --bg-secondary: #101522;
  --bg-tertiary: #161c2d;
  --bg-card: #121826;
  --bg-card-hover: #192132;
  --bg-elevated: #1a2236;
  --bg-overlay: rgba(10, 13, 20, 0.85);

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-muted: rgba(255, 255, 255, 0.14);
  --border-highlight: rgba(79, 140, 255, 0.4);

  /* Typography */
  --text-primary: #f0f4fc;
  --text-secondary: #9cb0d1;
  --text-muted: #627699;
  --text-inverse: #0a0d14;

  /* Accent Colors */
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-emerald: #059669;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #8b5cf6;

  /* Status Badges */
  --badge-active-bg: rgba(6, 182, 212, 0.15);
  --badge-active-text: #22d3ee;
  --badge-sold-bg: rgba(16, 185, 129, 0.15);
  --badge-sold-text: #34d399;
  --badge-expired-bg: rgba(156, 163, 175, 0.15);
  --badge-expired-text: #9ca3af;
  --badge-resolving-bg: rgba(245, 158, 11, 0.15);
  --badge-resolving-text: #fbbf24;
  --badge-unresolved-bg: rgba(244, 63, 94, 0.15);
  --badge-unresolved-text: #fb7185;

  /* Typography Scale */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --font-xs: 0.75rem;
  --font-sm: 0.84375rem;
  --font-md: 0.9375rem;
  --font-lg: 1.125rem;
  --font-xl: 1.375rem;
  --font-2xl: 1.75rem;
  --font-3xl: 2.25rem;

  /* Layout & Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 0.875rem;
  --spacing-lg: 1.25rem;
  --spacing-xl: 1.75rem;
  --spacing-2xl: 2.5rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Elevation & Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.3);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-md);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #60a5fa;
  text-decoration: underline;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: var(--font-sm);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.85rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

/* App Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(16, 21, 34, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  letter-spacing: -0.5px;
  box-shadow: var(--shadow-glow);
}

.brand-title {
  font-size: var(--font-lg);
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-badge {
  font-size: var(--font-xs);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-full);
  background-color: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  font-weight: 600;
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
  text-decoration: none;
}

.nav-link.active {
  color: #fff;
  background-color: var(--accent-blue);
}

/* Header Utilities */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--font-xs);
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-muted);
}

.status-dot.online {
  background-color: var(--accent-green);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.status-dot.warning {
  background-color: var(--accent-amber);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.6);
}

.status-dot.offline {
  background-color: var(--accent-rose);
  box-shadow: 0 0 8px rgba(244, 63, 94, 0.6);
}

/* Main Container */
.main-content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
}

/* View Sections */
.view-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.view-title-group h1 {
  font-size: var(--font-2xl);
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.view-subtitle {
  font-size: var(--font-sm);
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  font-weight: 600;
  font-size: var(--font-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #fff;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  background-color: var(--accent-blue-hover);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-highlight);
  text-decoration: none;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: var(--font-xs);
}

/* Metric Cards Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.metric-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.metric-card:hover {
  border-color: var(--border-muted);
  transform: translateY(-2px);
}

.metric-label {
  font-size: var(--font-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.metric-value {
  font-size: var(--font-2xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.metric-subtext {
  font-size: var(--font-xs);
  color: var(--text-secondary);
  margin-top: 0.4rem;
}

.metric-subtext.highlight {
  color: var(--accent-green);
  font-weight: 600;
}

/* Cards & Panels */
.panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1.75rem;
}

.panel-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.panel-title {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--text-primary);
}

.panel-body {
  padding: 1.25rem;
}

/* Filter Bar */
.filter-bar {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-input-search {
  min-width: 240px;
  flex: 1;
}

.toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--font-sm);
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

/* Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: var(--font-sm);
}

.data-table th {
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  font-weight: 600;
  font-size: var(--font-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background-color: var(--bg-card-hover);
}

.table-cell-title {
  color: var(--text-primary);
  font-weight: 600;
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.table-thumbnail {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  display: block;
}

.table-thumbnail-placeholder {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.7rem;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: var(--font-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.badge-active {
  background-color: var(--badge-active-bg);
  color: var(--badge-active-text);
}

.badge-sold {
  background-color: var(--badge-sold-bg);
  color: var(--badge-sold-text);
}

.badge-expired_removed {
  background-color: var(--badge-expired-bg);
  color: var(--badge-expired-text);
}

.badge-resolving {
  background-color: var(--badge-resolving-bg);
  color: var(--badge-resolving-text);
}

.badge-unresolved {
  background-color: var(--badge-unresolved-bg);
  color: var(--badge-unresolved-text);
}

/* Pagination Bar */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.pagination-info {
  font-size: var(--font-sm);
  color: var(--text-muted);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Lot Detail Layout */
.lot-detail-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1.75rem;
}

@media (max-width: 960px) {
  .lot-detail-layout {
    grid-template-columns: 1fr;
  }
}

.lot-detail-image-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lot-detail-main-img {
  width: 100%;
  max-height: 380px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.detail-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.detail-section-title {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.5rem;
}

.key-value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.85rem;
}

.key-value-item {
  display: flex;
  flex-direction: column;
}

.kv-key {
  font-size: var(--font-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.kv-val {
  font-size: var(--font-sm);
  color: var(--text-primary);
  font-weight: 500;
  margin-top: 0.15rem;
  word-break: break-word;
}

/* Collapsible Raw JSON Box */
.collapsible-raw {
  margin-top: 1.25rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.collapsible-header {
  padding: 0.75rem 1rem;
  background-color: var(--bg-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-sm);
  font-weight: 600;
  user-select: none;
}

.collapsible-content {
  padding: 1rem;
  background-color: #05070a;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: #38bdf8;
  max-height: 400px;
  overflow-y: auto;
}

/* Modal / Dialog */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--bg-overlay);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  animation: modalFadeIn 200ms ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.modal-logo {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.modal-title {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.modal-subtitle {
  font-size: var(--font-sm);
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-muted);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  animation: toastSlideIn 200ms ease-out;
}

.toast-success { border-color: var(--accent-green); }
.toast-error { border-color: var(--accent-rose); }
.toast-info { border-color: var(--accent-blue); }

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-card-hover) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .app-header {
    flex-wrap: wrap;
    padding: 0.65rem 1rem;
  }
  .nav-links {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-top: 0.5rem;
  }
  .main-content {
    padding: 1rem;
  }
  .metrics-grid {
    grid-template-columns: 1fr 1fr;
  }
}