/* ==========================================================================
   SIEG Intelligence — Design System & Custom CSS Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  --font-family: 'Outfit', sans-serif;
  
  /* Color Palette - HSL Tailored Dark Theme */
  --bg-primary: #0b0c15;
  --bg-secondary: #121424;
  --bg-card: rgba(18, 20, 36, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  
  --primary: #6366f1; /* Indigo */
  --primary-hover: #4f46e5;
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  
  --success: #10b981; /* Emerald */
  --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
  
  --warning: #f59e0b; /* Amber */
  --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  
  --danger: #ef4444; /* Rose */
  --danger-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
}

/* App Layout */
.app-container {
  display: flex;
  width: 100%;
  max-width: 100vw;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Sidebar Navigation */
.sidebar {
  width: 260px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 2rem 1.25rem;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
  transition: all var(--transition-normal);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.brand-logo {
  width: 40px;
  height: 40px;
  background: var(--primary-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.4);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #fff 40%, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.15rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav-item:hover, .nav-item.active {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.04);
}

.nav-item.active {
  background: var(--primary-gradient);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.nav-item i {
  font-size: 1.2rem;
  width: 24px;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

/* Main Content Wrapper */
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 2rem 2.5rem;
  min-height: 100vh;
  width: calc(100% - 260px);
  max-width: calc(100% - 260px);
  display: flex;
  flex-direction: column;
  gap: 2rem;
  overflow-x: hidden;
  transition: all var(--transition-normal);
}

/* Top Header */
.top-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.header-title h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 0.25rem;
}

.header-title p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
  outline: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: var(--text-primary);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Grid & Layout Metrics Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: var(--shadow-md);
}

.card-header-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.icon-blue { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.icon-green { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.icon-amber { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.icon-danger { background: rgba(239, 68, 110, 0.15); color: #f43f5e; }

.card-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 0.25rem;
}

.card-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Tab Content Visibility */
.tab-content {
  display: none;
  animation: fadeIn var(--transition-normal) forwards;
}

.tab-content.active {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

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

/* Section Header styling */
.section-title {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.3px;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Tables & Lists */
.table-container {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

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

.data-table th {
  background-color: rgba(255, 255, 255, 0.02);
  padding: 1rem 1.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 1.25rem 1.5rem;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

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

.data-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-success { background-color: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-warning { background-color: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.badge-danger { background-color: rgba(239, 68, 68, 0.15); color: #f87171; }
.badge-info { background-color: rgba(99, 102, 241, 0.15); color: #818cf8; }

/* Dashboard Two-Column Layout */
.dashboard-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

/* Alertas Panel */
.alerts-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.alert-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.15);
}

.alert-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}

.alert-indicator.critical { background-color: var(--danger); box-shadow: 0 0 8px var(--danger); }
.alert-indicator.warning { background-color: var(--warning); box-shadow: 0 0 8px var(--warning); }
.alert-indicator.info { background-color: var(--primary); box-shadow: 0 0 8px var(--primary); }

.alert-body {
  flex: 1;
}

.alert-desc {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.alert-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
}

/* Modal Styling */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 600px;
  max-width: 90%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalScale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalScale {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.close-btn {
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  background: none;
  border: none;
  outline: none;
}

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

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

/* Forms & Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.form-control {
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Sync status screen styling */
.sync-run-item {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.sync-run-item:last-child {
  border-bottom: none;
}

.sync-run-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.sync-run-date {
  font-weight: 500;
}

.sync-run-stats {
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.sync-run-stats span strong {
  color: var(--text-primary);
}

/* Empty State */
.empty-state {
  padding: 3rem;
  text-align: center;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.empty-state i {
  font-size: 3rem;
  color: var(--text-muted);
}

/* ============================================
   XML Upload Modal & Dropzone Styles
   ============================================ */
.upload-dropzone {
  border: 2px dashed rgba(99, 102, 241, 0.4);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background-color: rgba(99, 102, 241, 0.03);
  transition: all 0.2s ease-in-out;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
  border-color: var(--primary);
  background-color: rgba(99, 102, 241, 0.08);
  transform: translateY(-2px);
}

.dropzone-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.dropzone-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

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

.upload-file-list {
  margin-top: 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
}

.upload-file-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.btn-link {
  background: none;
  border: none;
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}

.text-danger {
  color: var(--danger) !important;
}

.upload-files-scroll {
  max-height: 140px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.upload-file-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.6rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.upload-file-chip span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 380px;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 50px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), #818cf8);
  border-radius: 50px;
  transition: width 0.3s ease;
}

.upload-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.upload-summary-card {
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.85rem;
}

.upload-summary-card.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.upload-summary-card.warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}

.upload-summary-card.danger {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.upload-summary-number {
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 0.2rem;
}

/* ============================================
   Modal Dialog & Overlay Styles
   ============================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

.modal-overlay.active {
  display: flex !important;
  opacity: 1;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.2s ease-out forwards;
}

@keyframes modalSlideIn {
  from {
    transform: translateY(-20px) scale(0.95);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s;
  line-height: 1;
}

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

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
}

/* ============================================
   Product Table Badges & Cell Styles
   ============================================ */
.badge-price-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  white-space: nowrap;
}

.code-badge {
  background: rgba(99, 102, 241, 0.1);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: monospace;
  white-space: nowrap;
}

.product-cell-name {
  max-width: 320px;
  font-size: 0.88rem;
  line-height: 1.35;
  word-break: break-word;
}

.product-cell-brand {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.badge-category {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.78rem;
  white-space: nowrap;
}

/* ============================================
   Product Detail Intelligence Cards
   ============================================ */
.intel-cards-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.75rem;
}

@media (max-width: 1200px) {
  .intel-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .intel-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.intel-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
  min-height: 115px;
  justify-content: flex-start;
  transition: all 0.2s ease;
}

.intel-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(99, 102, 241, 0.3);
}

.intel-card-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.4px;
}

.intel-card-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0.15rem 0;
}

.intel-card-value.text-success {
  color: #34d399;
}

.intel-card-value.text-danger {
  color: #f87171;
}

.intel-card-value.text-warning {
  color: #fbbf24;
}

.intel-card-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: auto;
}

.intel-card-supplier {
  font-size: 0.72rem;
  font-weight: 500;
  color: #818cf8;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================
   Comprehensive Responsive Media Queries
   ============================================ */
@media (max-width: 1200px) {
  .main-content {
    padding: 1.5rem 1.75rem;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  .dashboard-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 992px) {
  .sidebar {
    width: 72px;
    padding: 1.5rem 0.5rem;
  }
  .brand-section {
    justify-content: center;
    margin-bottom: 2rem;
  }
  .brand-name, .nav-item span, .sidebar-footer {
    display: none;
  }
  .nav-item {
    justify-content: center;
    padding: 0.85rem 0.5rem;
  }
  .nav-item i {
    margin: 0;
    font-size: 1.3rem;
  }
  .main-content {
    margin-left: 72px;
    width: calc(100% - 72px);
    max-width: calc(100% - 72px);
    padding: 1.25rem;
    gap: 1.5rem;
  }
  .top-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .header-actions {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    height: auto;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
  }
  .brand-section {
    margin-bottom: 0.75rem;
    justify-content: flex-start;
  }
  .brand-name {
    display: block;
    font-size: 1.1rem;
  }
  .nav-links {
    flex-direction: row;
    overflow-x: auto;
    gap: 0.5rem;
    padding-bottom: 0.25rem;
  }
  .nav-item {
    padding: 0.5rem 0.75rem;
    white-space: nowrap;
  }
  .nav-item span {
    display: inline;
    font-size: 0.85rem;
  }
  .main-content {
    margin-left: 0;
    width: 100%;
    max-width: 100%;
    padding: 1rem;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .section-title {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .section-title .form-group {
    width: 100% !important;
  }
}