:root {
  --bg-main: #0c0f17;
  --bg-card: #151b26;
  --bg-card-hover: #1c2433;
  --bg-input: #1d2536;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-secondary: #06b6d4;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

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

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 270px;
  background-color: var(--bg-card);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 20px;
  border-bottom: 1px solid var(--border-color);
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.brand-text h2 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-text h2 span {
  color: var(--accent-primary);
}

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

.nav-menu {
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  text-align: left;
}

.nav-item:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-main);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.15), rgba(6, 182, 212, 0.05));
  color: #fff;
  border-left: 3px solid var(--accent-primary);
}

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

.badge-count {
  margin-left: auto;
  background-color: var(--bg-input);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.badge-pulse {
  margin-left: auto;
  background: rgba(99, 102, 241, 0.2);
  color: var(--accent-primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
}

.env-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-success);
  box-shadow: 0 0 8px var(--accent-success);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background-color: var(--bg-main);
}

/* Topbar */
.topbar {
  padding: 24px 32px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-title h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topbar-title p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px 16px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  font-weight: 600;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-secondary);
}

/* Tab Views */
.tab-view {
  display: none;
  padding: 28px 32px;
  flex: 1;
}

.tab-view.active {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Toolbar Card */
.toolbar-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.search-input-wrap {
  flex: 1;
  min-width: 250px;
}

.margin-wrap {
  width: 170px;
}

.form-select, .form-input {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  padding: 8px 14px;
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-select:focus, .form-input:focus {
  border-color: var(--border-focus);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  border: none;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #4338ca);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.95;
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 6px 12px;
  font-size: 0.8rem;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
}

/* Data Table */
.table-container {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.data-table th {
  background-color: rgba(255, 255, 255, 0.02);
  padding: 14px 16px;
  color: var(--text-dim);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  vertical-align: middle;
}

.data-table tr:hover {
  background-color: rgba(255, 255, 255, 0.015);
}

.empty-state {
  text-align: center;
  padding: 48px 20px !important;
  color: var(--text-dim);
  font-style: italic;
}

.product-img-thumb {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background-color: var(--bg-input);
}

.product-title {
  font-weight: 600;
  color: var(--text-main);
  max-width: 380px;
  display: block;
}

.product-sku {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-dim);
  display: block;
  margin-top: 2px;
}

.badge-stock {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-weight: 600;
}

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

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

.price-ars {
  font-weight: 700;
  color: var(--text-main);
}

.price-usd {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Chat Assistant Tab */
.chat-wrapper {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  height: calc(100vh - 170px);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.chat-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.015);
}

.bot-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.bot-info h3 {
  font-size: 1rem;
  font-weight: 600;
}

.bot-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.quick-prompts {
  display: flex;
  gap: 10px;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  background: rgba(0, 0, 0, 0.1);
}

.chip {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.chip:hover {
  background-color: var(--bg-card-hover);
  color: var(--accent-secondary);
  border-color: rgba(6, 182, 212, 0.3);
}

.chat-messages {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.chat-bubble {
  max-width: 82%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bot-msg {
  align-self: flex-start;
}

.user-msg {
  align-self: flex-end;
}

.bubble-content {
  padding: 14px 18px;
  border-radius: var(--radius-lg);
  font-size: 0.92rem;
  line-height: 1.55;
  white-space: normal;
  word-break: break-word;
}

.bot-msg .bubble-content {
  background-color: var(--bg-input);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-color);
}

.user-msg .bubble-content {
  background: linear-gradient(135deg, var(--accent-primary), #4338ca);
  color: #fff;
  border-bottom-right-radius: 4px;
}

/* Chat Product Cards Grid */
.chat-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
  margin-top: 8px;
}

.chat-product-card {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all 0.2s ease;
}

.chat-product-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.chat-product-img {
  width: 100%;
  height: 120px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  background-color: rgba(255, 255, 255, 0.02);
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.chat-product-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 32px;
}

.chat-product-price {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-secondary);
}

.chat-input-area {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 12px;
  background: rgba(255, 255, 255, 0.01);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
}

.toast {
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease;
}

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

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

/* User Profile Row in Sidebar */
.user-profile-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background-color: var(--bg-input);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--border-color);
}

.user-avatar-mini {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.user-info-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.68rem;
  color: var(--text-dim);
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

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

/* Login Gate Overlay */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(12, 15, 23, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.3s ease;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background-color: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(99, 102, 241, 0.15);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.login-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.login-shield-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
  border: 1px solid rgba(99, 102, 241, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.login-header h2 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.login-header p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.btn-block {
  width: 100%;
  justify-content: center;
  padding: 12px;
  font-size: 0.95rem;
  margin-top: 6px;
}

.login-footer {
  text-align: center;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  color: var(--text-dim);
}

.security-badge svg {
  color: var(--accent-success);
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

/* =========================================================================
   AI CONFIGURATION DASHBOARD (TAB 4)
   ========================================================================= */
.config-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto;
  padding-bottom: 40px;
}

.config-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.config-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.config-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
  border: 1px solid rgba(99, 102, 241, 0.35);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.2);
}

.config-card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.config-card-header p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}

.full-width {
  grid-column: 1 / -1;
}

.form-textarea {
  font-family: inherit;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  padding: 10px 14px;
  font-size: 0.88rem;
  line-height: 1.5;
  resize: vertical;
  transition: all 0.2s ease;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-hint {
  font-size: 0.76rem;
  color: var(--text-dim);
  margin-top: 4px;
  line-height: 1.4;
}

/* Range Slider */
.range-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.range-badge {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.4);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
}

.range-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
  margin: 10px 0 6px 0;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.6);
  transition: transform 0.1s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Modern iOS Switch Toggles */
.toggle-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  transition: background 0.2s ease;
}

.toggle-row:hover {
  background: rgba(255, 255, 255, 0.04);
}

.toggle-info strong {
  display: block;
  font-size: 0.92rem;
  color: var(--text-main);
  margin-bottom: 2px;
}

.toggle-info p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.15);
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 26px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

input:checked + .slider {
  background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

input:checked + .slider:before {
  transform: translateX(22px);
}

/* Action Bar */
.config-actions-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  position: sticky;
  bottom: 20px;
  z-index: 10;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}