/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&display=swap');

/* Reset & Variables */
:root {
  /* Default: Dark Theme Variables */
  --font-main: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  
  --bg-primary: #0b0f19;
  --bg-secondary: #131a26;
  --bg-tertiary: #1c2533;
  --border-color: #243042;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.15);
  
  --success-color: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --success-text: #34d399;
  
  --danger-color: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --danger-text: #f87171;
  
  --warning-color: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --warning-text: #fbbf24;

  --sidebar-width: 280px;
  --transition-speed: 0.3s;
  --card-radius: 16px;
  --inner-radius: 12px;
  --card-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.3);
}

/* Light Theme Overrides */
body.light-theme {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --border-color: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.1);
  
  --success-color: #059669;
  --success-bg: rgba(5, 150, 105, 0.15);
  --success-text: #047857;
  
  --danger-color: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.15);
  --danger-text: #b91c1c;
  
  --warning-color: #d97706;
  --warning-bg: rgba(217, 119, 6, 0.15);
  --warning-text: #92400e;
  
  --card-shadow: 0 4px 20px -2px rgba(148, 163, 184, 0.12);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

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

/* App Container Layout */
.app-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: all var(--transition-speed) ease;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 0 15px var(--primary-glow);
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-logo-img {
  width: 100%;
  max-width: 220px;
  height: auto;
  max-height: 80px;
  object-fit: contain;
  transition: transform var(--transition-speed);
}

/* Add drop-shadow to make dark text readable on dark sidebar background */
body:not(.light-theme) .brand-logo-img {
  filter: drop-shadow(0px 0px 1px rgba(255, 255, 255, 0.8)) drop-shadow(0px 0px 1px rgba(255, 255, 255, 0.8));
}

.brand-logo-img:hover {
  transform: scale(1.04);
}

/* Client Profile Card in Sidebar */
.client-profile-card {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--inner-radius);
  padding: 16px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.client-profile-card .profile-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.client-profile-card .client-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.client-profile-card .client-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Sidebar Menu Navigation */
.nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--inner-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

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

.nav-item.active {
  background-color: var(--primary-glow);
  color: var(--primary-color);
  border-color: rgba(59, 130, 246, 0.2);
}

.nav-item i {
  font-size: 1.1rem;
}

/* Theme Toggle & Bottom Actions in Sidebar */
.sidebar-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: var(--inner-radius);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

/* Main Content Area */
.main-content {
  flex-grow: 1;
  margin-left: var(--sidebar-width);
  padding: 32px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header Area */
.main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.header-info h1 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.header-info p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--inner-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  outline: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 4px 15px var(--primary-glow);
}

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

.btn-secondary:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-secondary);
}

/* Tab Views Container */
.tab-view {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.tab-view.active {
  display: block;
}

/* Grid Layouts */
.grid-4col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

/* Card Component */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: transform 0.2s ease, border-color var(--transition-speed);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-2px);
}

/* KPI Card Specifics */
.kpi-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.kpi-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.kpi-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-tertiary);
  color: var(--primary-color);
}

.kpi-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.kpi-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
}

.kpi-delta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 20px;
  font-weight: 700;
}

.kpi-delta.up {
  background-color: var(--success-bg);
  color: var(--success-text);
}

.kpi-delta.down {
  background-color: var(--danger-bg);
  color: var(--danger-text);
}

.kpi-delta.neutral {
  background-color: var(--warning-bg);
  color: var(--warning-text);
}

.kpi-label-compare {
  color: var(--text-muted);
}

/* Sparkline containers */
.kpi-sparkline {
  height: 40px;
  margin-top: 4px;
  width: 100%;
}

/* Highlights card on cover page */
.highlights-card {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.highlights-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.highlights-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.highlight-item {
  display: flex;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
  padding: 10px 14px;
  background-color: var(--bg-tertiary);
  border-left: 3px solid var(--primary-color);
  border-radius: 0 var(--inner-radius) var(--inner-radius) 0;
}

.highlight-item i {
  color: var(--primary-color);
  margin-top: 3px;
  flex-shrink: 0;
}

/* Table Controls: Search & Filter */
.table-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex-grow: 1;
  max-width: 320px;
}

.search-input-wrapper i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.search-input {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px 10px 40px;
  border-radius: var(--inner-radius);
  font-size: 0.875rem;
  outline: none;
  transition: all 0.2s ease;
}

.search-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.filter-select {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--inner-radius);
  font-size: 0.85rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-select:focus {
  border-color: var(--primary-color);
}

/* Responsive Table Wrapper */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--inner-radius);
  background-color: var(--bg-secondary);
  margin-bottom: 12px;
}

.table-responsive.kpi-compare-table-wrapper {
  border-radius: var(--card-radius);
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.custom-table th {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  user-select: none;
  cursor: pointer;
  position: relative;
  white-space: nowrap;
}

.custom-table th.no-sort {
  cursor: default;
}

.custom-table th i.sort-icon {
  margin-left: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.custom-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  white-space: nowrap;
}

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

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

/* Totals Row */
.custom-table tr.row-total td {
  background-color: var(--bg-tertiary);
  font-weight: 700;
  border-top: 2px solid var(--border-color);
  border-bottom: none;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

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

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

.badge-neutral {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

/* Custom Progress Bar for Table ROAS */
.progress-bar-container {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 120px;
}

.progress-bar-bg {
  flex-grow: 1;
  height: 6px;
  background-color: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary-color), #8b5cf6);
  width: 0;
  transition: width 0.6s ease;
}

/* Chart Container Cards */
.chart-container-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chart-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.chart-body {
  width: 100%;
  min-height: 350px;
}

/* Comments & Insights UI styling */
.insight-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.insights-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.insight-card {
  border-top-width: 4px;
  border-top-style: solid;
}

.insight-card.strength-card {
  border-top-color: var(--success-color);
}

.insight-card.weakness-card {
  border-top-color: var(--danger-color);
}

.insight-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.insight-card.strength-card .insight-card-title {
  color: var(--success-text);
}

.insight-card.weakness-card .insight-card-title {
  color: var(--danger-text);
}

.insight-item-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.insight-bullet {
  display: flex;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.insight-bullet i {
  margin-top: 3px;
  flex-shrink: 0;
}

.insight-bullet.strength-bullet i {
  color: var(--success-color);
}

.insight-bullet.weakness-bullet i {
  color: var(--danger-color);
}

.recommendations-card {
  grid-column: span 2;
  border-top: 4px solid var(--warning-color);
}

.recommendations-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--warning-text);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.action-checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.checklist-item {
  display: flex;
  gap: 12px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 14px;
  border-radius: var(--inner-radius);
  align-items: flex-start;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
}

.checklist-item:hover {
  border-color: var(--text-muted);
}

.checklist-item.checked {
  border-color: var(--success-color);
  background-color: rgba(16, 185, 129, 0.03);
}

.checklist-checkbox {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: all 0.2s ease;
}

.checklist-item.checked .checklist-checkbox {
  background-color: var(--success-color);
  border-color: var(--success-color);
  color: #fff;
}

.checklist-checkbox i {
  font-size: 0.7rem;
  display: none;
}

.checklist-item.checked .checklist-checkbox i {
  display: block;
}

.checklist-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
  transition: all 0.2s ease;
}

.checklist-item.checked .checklist-text {
  color: var(--text-muted);
  text-decoration: line-through;
}

.conclusion-card {
  grid-column: span 2;
  background-color: var(--bg-tertiary);
  border-left: 4px solid var(--primary-color);
}

.conclusion-text {
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.signatures-section {
  display: flex;
  justify-content: space-around;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.signature-block {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.signature-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.signature-line {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-top: 1px dashed var(--text-muted);
  padding-top: 8px;
  min-width: 200px;
}

/* Drag and Drop Uploader */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--card-radius);
  padding: 60px 40px;
  background-color: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--primary-color);
  background-color: var(--primary-glow);
}

.upload-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: var(--card-shadow);
  transition: all 0.2s ease;
}

.upload-zone:hover .upload-icon {
  transform: scale(1.05);
}

.upload-text h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

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

.file-input {
  display: none;
}

.template-guidelines {
  margin-top: 32px;
}

.template-guidelines h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.guideline-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.guideline-step {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--inner-radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--primary-glow);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
}

.step-title {
  font-size: 0.9rem;
  font-weight: 700;
}

.step-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

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

/* Client Header Meta display */
.client-header-meta {
  display: flex;
  gap: 24px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 16px 24px;
  flex-wrap: wrap;
  box-shadow: var(--card-shadow);
}

.meta-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-field .meta-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.meta-field .meta-value {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Print/Clean styles for Report Export */
@media print {
  body {
    background-color: #fff !important;
    color: #000 !important;
  }
  .sidebar, .header-actions, .table-controls, .upload-zone, .theme-toggle-btn {
    display: none !important;
  }
  .main-content {
    margin-left: 0 !important;
    padding: 0 !important;
  }
  .tab-view {
    display: block !important;
    page-break-after: always;
  }
  .card {
    border: 1px solid #ccc !important;
    box-shadow: none !important;
    background-color: #fff !important;
  }
  .custom-table th {
    background-color: #f1f5f9 !important;
    color: #000 !important;
    border-bottom: 2px solid #ccc !important;
  }
  .custom-table td {
    border-bottom: 1px solid #eee !important;
  }
  .badge-active {
    background-color: #e6f4ea !important;
    color: #137333 !important;
    border: 1px solid #137333 !important;
  }
  .badge-paused {
    background-color: #fce8e6 !important;
    color: #c5221f !important;
    border: 1px solid #c5221f !important;
  }
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .insights-grid {
    grid-template-columns: 1fr;
  }
  .recommendations-card, .conclusion-card {
    grid-column: span 1;
  }
  .action-checklist {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  body {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  .main-content {
    margin-left: 0;
    padding: 16px;
  }
  .main-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .header-actions {
    width: 100%;
    justify-content: flex-start;
  }
  .client-header-meta {
    gap: 12px;
    padding: 12px 16px;
  }
}