/* ==========================================================================
   CampaignOS — Premium Advertising Campaign Planner & Ethical Ad-Intel
   AVMARKONE Design System • 20+ Years Experience Enterprise Standard
   Color Theme Engine: Default Light Mode with 1-Click Dark Mode Toggle
   Palette: Crisp White • Slate • Electric Blue • Deep Black • Vibrant Orange
   ========================================================================== */

:root,
[data-theme="light"] {
  /* Crisp Light Foundations (Default) */
  --cos-bg-deep: #f8fafc;
  --cos-bg-surface: #ffffff;
  --cos-bg-sidebar: #ffffff;
  --cos-bg-card: #ffffff;
  --cos-bg-card-hover: #f1f5f9;
  --cos-bg-card-light: #f8fafc;
  --cos-input-bg: #ffffff;
  
  /* Crisp Light Borders */
  --cos-border: #e2e8f0;
  --cos-border-light: #cbd5e1;
  --cos-border-hover: rgba(37, 99, 235, 0.45);
  --cos-border-orange: rgba(255, 107, 0, 0.45);
  
  /* Modern High-Contrast Typography */
  --cos-text-primary: #090d16;
  --cos-text-secondary: #475569;
  --cos-text-muted: #64748b;
  
  /* Electric Blue (Primary Cool) */
  --cos-blue: #2563eb;
  --cos-blue-light: #3b82f6;
  --cos-blue-hover: #1d4ed8;
  --cos-blue-glow: rgba(37, 99, 235, 0.18);
  --cos-blue-bg: rgba(37, 99, 235, 0.08);
  
  /* Vibrant Action Orange (High Energy Accents) */
  --cos-orange: #ff6b00;
  --cos-orange-light: #f97316;
  --cos-orange-hover: #ea580c;
  --cos-orange-glow: rgba(255, 107, 0, 0.22);
  --cos-orange-bg: rgba(255, 107, 0, 0.08);
  
  /* Cool Teal & Ice Blue (Signals) */
  --cos-teal: #059669;
  --cos-teal-light: #10b981;
  --cos-teal-bg: rgba(16, 185, 129, 0.1);
  
  --cos-ice: #0284c7;
  --cos-ice-bg: rgba(2, 132, 199, 0.08);
  
  --cos-amber: #d97706;
  --cos-amber-bg: rgba(217, 119, 6, 0.1);
  
  --cos-red: #dc2626;
  --cos-red-bg: rgba(220, 38, 38, 0.1);
  
  --cos-radius-xs: 4px;
  --cos-radius-sm: 6px;
  --cos-radius-md: 10px;
  --cos-radius-lg: 14px;
  --cos-radius-xl: 18px;
  
  --cos-sidebar-width: 260px;
  --cos-topbar-height: 64px;
  --cos-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 4px 14px -2px rgba(0, 0, 0, 0.05);
  --cos-shadow-lg: 0 10px 25px -4px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --cos-transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  /* Deep Black / Dark Obsidian Foundations */
  --cos-bg-deep: #060911;
  --cos-bg-surface: #0a0f1d;
  --cos-bg-sidebar: #050810;
  --cos-bg-card: #0e1526;
  --cos-bg-card-hover: #131d33;
  --cos-bg-card-light: #16223b;
  --cos-input-bg: rgba(15, 23, 42, 0.8);
  
  /* High-Contrast Borders */
  --cos-border: rgba(255, 255, 255, 0.08);
  --cos-border-light: rgba(255, 255, 255, 0.16);
  --cos-border-hover: rgba(59, 130, 246, 0.45);
  --cos-border-orange: rgba(255, 107, 0, 0.45);
  
  /* Modern Text Hierarchy */
  --cos-text-primary: #ffffff;
  --cos-text-secondary: #94a3b8;
  --cos-text-muted: #64748b;
  
  /* Electric Blue */
  --cos-blue: #2563eb;
  --cos-blue-light: #3b82f6;
  --cos-blue-hover: #1d4ed8;
  --cos-blue-glow: rgba(37, 99, 235, 0.35);
  --cos-blue-bg: rgba(37, 99, 235, 0.12);
  
  /* Vibrant Action Orange */
  --cos-orange: #ff6b00;
  --cos-orange-light: #f97316;
  --cos-orange-hover: #ea580c;
  --cos-orange-glow: rgba(255, 107, 0, 0.35);
  --cos-orange-bg: rgba(255, 107, 0, 0.12);
  
  /* Cool Teal & Ice Blue (Signals) */
  --cos-teal: #10b981;
  --cos-teal-light: #34d399;
  --cos-teal-bg: rgba(16, 185, 129, 0.12);
  
  --cos-ice: #38bdf8;
  --cos-ice-bg: rgba(56, 189, 248, 0.12);
  
  --cos-amber: #f59e0b;
  --cos-amber-bg: rgba(245, 158, 11, 0.12);
  
  --cos-red: #ef4444;
  --cos-red-bg: rgba(239, 68, 68, 0.12);
  
  --cos-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.5), 0 2px 6px -1px rgba(0, 0, 0, 0.3);
  --cos-shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.6);
}

/* Prevent horizontal jitter/layout shift between screens with stable scrollbar */
html {
  scrollbar-gutter: stable;
  overflow-y: scroll;
}

.cos-app-root {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--cos-text-primary);
  background-color: var(--cos-bg-deep);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Base resets & layout */
.cos-app-container {
  display: flex;
  width: 100%;
  min-height: calc(100vh - var(--cos-topbar-height));
  position: relative;
  align-items: stretch;
}

/* Sticky Ethics & Disclaimer Banner */
.cos-disclaimer-strip {
  background: var(--cos-bg-card-light);
  border-bottom: 1px solid var(--cos-border);
  padding: 7px 24px;
  font-size: 11.5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--cos-text-secondary);
  z-index: 100;
}
.cos-disclaimer-strip b {
  color: var(--cos-blue);
}
.cos-disclaimer-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--cos-teal-bg);
  color: var(--cos-teal);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 11px;
}

/* Top Navigation Bar */
.cos-topbar {
  height: var(--cos-topbar-height);
  background: var(--cos-bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--cos-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.cos-topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.cos-brand-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--cos-blue), var(--cos-orange));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: #ffffff;
  font-size: 17px;
  box-shadow: 0 0 16px var(--cos-blue-glow);
}
.cos-brand-text {
  display: flex;
  flex-direction: column;
}
.cos-brand-title {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--cos-text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.cos-brand-badge {
  font-size: 10px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--cos-blue), var(--cos-orange));
  color: #ffffff;
  padding: 1px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cos-brand-sub {
  font-size: 11px;
  color: var(--cos-text-muted);
}

/* Theme Switcher Toggle Button */
.cos-theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--cos-text-primary);
  cursor: pointer;
  transition: var(--cos-transition);
}
.cos-theme-toggle-btn:hover {
  border-color: var(--cos-blue);
  background: var(--cos-bg-card-hover);
  color: var(--cos-blue);
}
.cos-theme-icon {
  font-size: 13px;
}

.cos-topbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cos-control-group {
  display: flex;
  align-items: center;
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-sm);
  padding: 4px 10px;
  gap: 8px;
  font-size: 13px;
  color: var(--cos-text-secondary);
}
.cos-control-group select {
  background: transparent;
  border: none;
  color: var(--cos-text-primary);
  font-size: 13px;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}
.cos-control-group select option {
  background: var(--cos-bg-surface);
  color: var(--cos-text-primary);
}

.cos-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--cos-radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--cos-transition);
  text-decoration: none;
}
.cos-btn-primary {
  background: linear-gradient(135deg, var(--cos-blue), var(--cos-blue-hover));
  color: #ffffff;
  box-shadow: 0 2px 10px var(--cos-blue-glow);
}
.cos-btn-primary:hover {
  background: linear-gradient(135deg, var(--cos-blue-light), var(--cos-blue));
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--cos-blue-glow);
}
.cos-btn-orange {
  background: linear-gradient(135deg, var(--cos-orange), var(--cos-orange-hover));
  color: #ffffff;
  box-shadow: 0 2px 10px var(--cos-orange-glow);
}
.cos-btn-orange:hover {
  background: linear-gradient(135deg, var(--cos-orange-light), var(--cos-orange));
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--cos-orange-glow);
}
.cos-btn-white {
  background: #ffffff;
  color: #060911;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(255, 255, 255, 0.15);
}
.cos-btn-white:hover {
  background: #f1f5f9;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255, 255, 255, 0.25);
}
.cos-btn-secondary {
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  color: var(--cos-text-primary);
}
.cos-btn-secondary:hover {
  background: var(--cos-bg-card-hover);
  color: var(--cos-text-primary);
  border-color: var(--cos-border-hover);
}
.cos-btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* User Avatar & Menu */
.cos-user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  transition: var(--cos-transition);
}
.cos-user-menu:hover {
  background: var(--cos-bg-card-hover);
  border-color: var(--cos-border-hover);
}
.cos-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cos-blue), var(--cos-orange));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  font-weight: 700;
}

/* Sidebar Navigation — Pinned, Stable, Standard Enterprise Spacing */
.cos-sidebar {
  width: var(--cos-sidebar-width);
  min-width: var(--cos-sidebar-width);
  max-width: var(--cos-sidebar-width);
  background: var(--cos-bg-sidebar);
  border-right: 1px solid var(--cos-border);
  display: flex !important;
  flex-direction: column !important;
  justify-content: flex-start !important;
  align-items: stretch !important;
  flex-shrink: 0;
  position: sticky;
  top: var(--cos-topbar-height);
  height: calc(100vh - var(--cos-topbar-height));
  max-height: calc(100vh - var(--cos-topbar-height));
  overflow: hidden;
  z-index: 80;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  transition: width 0.22s cubic-bezier(0.16, 1, 0.3, 1), min-width 0.22s cubic-bezier(0.16, 1, 0.3, 1), max-width 0.22s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

/* Sidebar Collapsed State (via Toggle Arrow) */
.cos-sidebar.collapsed {
  width: 0px !important;
  min-width: 0px !important;
  max-width: 0px !important;
  border-right: none !important;
  padding: 0 !important;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

/* Resizable Splitter (Antigravity Standard Dragging & Toggle Arrow) */
.cos-splitter {
  width: 16px;
  margin-left: -8px;
  position: sticky;
  top: var(--cos-topbar-height);
  height: calc(100vh - var(--cos-topbar-height));
  cursor: col-resize;
  z-index: 85;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
  flex-shrink: 0;
}
.cos-splitter-line {
  width: 2px;
  height: 100%;
  background: transparent;
  transition: background 0.18s ease;
}
.cos-splitter:hover .cos-splitter-line,
body.cos-resizing-sidebar .cos-splitter-line {
  background: var(--cos-blue);
  box-shadow: 0 0 10px var(--cos-blue-glow);
}
.cos-splitter-toggle {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--cos-bg-surface);
  border: 1px solid var(--cos-border-light);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--cos-text-secondary);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 0;
  z-index: 2;
  outline: none;
}
.cos-splitter-toggle:hover {
  background: var(--cos-blue);
  color: #ffffff;
  border-color: var(--cos-blue);
  transform: translateY(-50%) scale(1.15);
  box-shadow: 0 0 12px var(--cos-blue-glow);
}
.cos-splitter-icon {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.cos-sidebar.collapsed + .cos-sidebar-backdrop + .cos-splitter .cos-splitter-icon,
.cos-sidebar.collapsed ~ .cos-splitter .cos-splitter-icon {
  transform: rotate(180deg);
}

/* While user is actively dragging the splitter */
body.cos-resizing-sidebar {
  cursor: col-resize !important;
  user-select: none !important;
  -webkit-user-select: none !important;
}
body.cos-resizing-sidebar .cos-sidebar,
body.cos-resizing-sidebar .cos-main-viewport,
body.cos-resizing-sidebar .cos-splitter {
  transition: none !important;
}

/* Mobile Drawer Hamburger Button */
.cos-mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 36px;
  height: 36px;
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-sm);
  padding: 8px;
  cursor: pointer;
  transition: var(--cos-transition);
  flex-shrink: 0;
}
.cos-mobile-menu-btn:hover {
  background: var(--cos-bg-card-hover);
  border-color: var(--cos-border-hover);
}
.cos-mobile-menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--cos-text-primary);
  border-radius: 2px;
  transition: var(--cos-transition);
}

/* Mobile Sidebar Backdrop Overlay */
.cos-sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.cos-sidebar-backdrop.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

nav.cos-sidebar-nav,
.cos-sidebar-nav {
  padding: 10px 8px !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: flex-start !important;
  align-items: stretch !important;
  min-height: 0 !important;
  height: auto !important;
  gap: 2px !important;
  flex: 1 1 auto !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  box-sizing: border-box !important;
  scrollbar-width: thin;
  scrollbar-color: var(--cos-border) transparent;
}
nav.cos-sidebar-nav::-webkit-scrollbar,
.cos-sidebar-nav::-webkit-scrollbar {
  width: 4px;
}
nav.cos-sidebar-nav::-webkit-scrollbar-thumb,
.cos-sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--cos-border);
  border-radius: 4px;
}

.cos-nav-category {
  font-size: 10px !important;
  font-weight: 700 !important;
  color: var(--cos-text-muted) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  padding: 12px 10px 4px 10px !important;
  margin: 0 !important;
  line-height: 1.2 !important;
  display: block !important;
  user-select: none !important;
  -webkit-user-select: none !important;
}
.cos-nav-category:not(:first-child) {
  margin-top: 8px !important;
  padding-top: 12px !important;
  border-top: 1px solid var(--cos-border) !important;
}

.cos-nav-item {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  padding: 7px 10px !important;
  border-radius: 7px !important;
  color: var(--cos-text-secondary) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  letter-spacing: -0.01em !important;
  line-height: 1.25 !important;
  cursor: pointer !important;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1) !important;
  text-decoration: none !important;
  border: 1px solid transparent !important;
  gap: 8px !important;
  min-height: 36px !important;
  height: 36px !important;
  width: 100% !important;
  box-sizing: border-box !important;
  position: relative !important;
  user-select: none !important;
  -webkit-user-select: none !important;
}
.cos-nav-item:hover {
  background: var(--cos-bg-card-hover) !important;
  color: var(--cos-text-primary) !important;
  border-color: var(--cos-border) !important;
}
.cos-nav-item.active {
  background: var(--cos-blue-bg) !important;
  color: var(--cos-blue) !important;
  border-color: rgba(37, 99, 235, 0.35) !important;
  font-weight: 600 !important;
  box-shadow: inset 3px 0 0 var(--cos-blue) !important;
}
.cos-nav-item-left {
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  min-width: 0 !important;
  flex: 1 1 auto !important;
}
.cos-nav-icon-wrap {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cos-nav-svg {
  width: 16px;
  height: 16px;
  color: var(--cos-text-muted);
  stroke-width: 2;
  transition: color 0.15s ease, transform 0.15s ease;
  flex-shrink: 0;
  display: block;
}
.cos-nav-item:hover .cos-nav-svg {
  color: var(--cos-text-primary);
}
.cos-nav-item.active .cos-nav-svg {
  color: var(--cos-blue);
  stroke-width: 2.2;
}
.cos-nav-text {
  font-size: 13px !important;
  font-weight: 500 !important;
  letter-spacing: -0.01em !important;
  line-height: 1.25 !important;
  color: inherit !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
}
.cos-nav-item.active .cos-nav-text {
  font-weight: 600 !important;
  color: var(--cos-blue) !important;
}

.cos-nav-pill {
  font-size: 10px !important;
  font-weight: 600 !important;
  padding: 1.5px 6.5px !important;
  border-radius: 999px !important;
  line-height: 1.2 !important;
  letter-spacing: 0.02em !important;
  background: var(--cos-bg-card-light) !important;
  border: 1px solid var(--cos-border) !important;
  color: var(--cos-text-muted) !important;
  flex-shrink: 0 !important;
  white-space: nowrap !important;
}
.cos-nav-pill.green {
  background: var(--cos-teal-bg) !important;
  color: var(--cos-teal) !important;
  border-color: rgba(16, 185, 129, 0.28) !important;
}
.cos-nav-pill.orange {
  background: var(--cos-orange-bg) !important;
  color: var(--cos-orange) !important;
  border-color: var(--cos-border-orange) !important;
}

/* Sidebar Footer */
.cos-sidebar-footer {
  padding: 10px 12px;
  border-top: 1px solid var(--cos-border);
  background: var(--cos-bg-sidebar);
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
  flex-shrink: 0;
  box-sizing: border-box;
}
.cos-quota-box {
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-sm);
  padding: 7px 9px;
}
.cos-quota-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--cos-text-secondary);
  margin-bottom: 5px;
}
.cos-quota-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  color: var(--cos-text-muted);
}
.cos-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cos-teal);
  box-shadow: 0 0 6px var(--cos-teal);
  display: inline-block;
  animation: cosPulse 2s infinite ease-in-out;
}
@keyframes cosPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}
.cos-quota-val {
  font-size: 11px;
  font-weight: 600;
  color: var(--cos-teal);
}
.cos-quota-bar {
  height: 3px;
  background: var(--cos-border);
  border-radius: 3px;
  overflow: hidden;
}
.cos-quota-fill {
  background: linear-gradient(90deg, var(--cos-teal), var(--cos-blue));
  border-radius: 3px;
  height: 100%;
}
.cos-sidebar-footer-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--cos-text-muted);
  padding: 0 2px;
}
.cos-footer-badge {
  font-size: 9.5px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--cos-blue-bg);
  color: var(--cos-blue);
  border: 1px solid rgba(37, 99, 235, 0.25);
  letter-spacing: 0.04em;
}

/* Main Content Viewport — No Jitter / Shift */
.cos-main-viewport {
  flex: 1;
  min-width: 0;
  background: var(--cos-bg-deep);
  padding: 24px 32px 60px 32px;
  margin: 0;
  box-sizing: border-box;
}

.cos-main-viewport > .cos-view-screen {
  max-width: 1400px;
  margin: 0;
}

/* Screens Visibility Controller */
.cos-view-screen {
  display: none;
  animation: cosFadeIn 0.25s ease-out forwards;
}
.cos-view-screen.active {
  display: block;
}
@keyframes cosFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Hero Command Section (Rare Tagline & Strategic SEO Highlights)
   ========================================================================== */
.cos-hero-banner {
  background: var(--cos-bg-card);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-lg);
  padding: 28px 30px 24px 30px;
  margin-bottom: 28px;
  box-shadow: var(--cos-shadow);
  position: relative;
  overflow: hidden;
}
.cos-hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cos-blue), var(--cos-orange), var(--cos-teal));
}
.cos-hero-badge-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.cos-hero-pill-hot {
  font-size: 11px;
  font-weight: 800;
  background: var(--cos-orange-bg);
  color: var(--cos-orange);
  border: 1px solid var(--cos-border-orange);
  padding: 2px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.cos-hero-pill {
  font-size: 11px;
  font-weight: 600;
  background: var(--cos-blue-bg);
  color: var(--cos-blue);
  border: 1px solid rgba(37, 99, 235, 0.25);
  padding: 2px 10px;
  border-radius: 999px;
}
.cos-hero-pill.green {
  background: var(--cos-teal-bg);
  color: var(--cos-teal);
  border-color: rgba(16, 185, 129, 0.25);
}
.cos-hero-h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.25;
  color: var(--cos-text-primary);
  margin: 0 0 10px 0;
}
.cos-hero-gradient {
  background: linear-gradient(135deg, var(--cos-blue), var(--cos-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cos-hero-tagline {
  font-size: 14px;
  color: var(--cos-text-secondary);
  line-height: 1.6;
  max-width: 900px;
  margin: 0 0 20px 0;
}
.cos-hero-tagline b {
  color: var(--cos-text-primary);
}
.cos-hero-actions-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.cos-hero-features-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--cos-border);
}
.cos-hero-feat-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.cos-feat-icon {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}
.cos-hero-feat-item div {
  display: flex;
  flex-direction: column;
}
.cos-hero-feat-item b {
  font-size: 12px;
  font-weight: 700;
  color: var(--cos-text-primary);
  margin-bottom: 2px;
}
.cos-hero-feat-item span {
  font-size: 11.5px;
  color: var(--cos-text-muted);
  line-height: 1.35;
}

/* Cards & Surfaces */
.cos-card {
  background: var(--cos-bg-card);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-lg);
  padding: 24px;
  box-shadow: var(--cos-shadow);
  transition: var(--cos-transition);
  position: relative;
}
.cos-card:hover {
  border-color: var(--cos-border-hover);
}
.cos-card-glow {
  position: relative;
  overflow: hidden;
}
.cos-card-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cos-blue), var(--cos-orange));
}

/* Headers & Kickers */
.cos-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.cos-kicker {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #38bdf8;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cos-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--cos-text-primary);
  margin: 0 0 6px 0;
}
.cos-subtitle {
  font-size: 14px;
  color: var(--cos-text-secondary);
  max-width: 650px;
  line-height: 1.5;
  margin: 0;
}

/* Badges & Labels (Ethics Strict Standards) */
.cos-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid transparent;
}
.cos-badge-observed {
  background: var(--cos-teal-bg);
  color: var(--cos-teal);
  border-color: rgba(16, 185, 129, 0.25);
}
.cos-badge-licensed {
  background: var(--cos-blue-bg);
  color: var(--cos-blue);
  border-color: rgba(37, 99, 235, 0.25);
}
.cos-badge-estimated {
  background: var(--cos-orange-bg);
  color: var(--cos-orange);
  border-color: var(--cos-border-orange);
}
.cos-badge-ai {
  background: var(--cos-ice-bg);
  color: var(--cos-ice);
  border-color: rgba(2, 132, 199, 0.25);
}
.cos-badge-unavailable {
  background: rgba(148, 163, 184, 0.12);
  color: var(--cos-text-muted);
  border-color: var(--cos-border);
}

/* Tooltip Component */
.cos-info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cos-bg-card-light);
  color: var(--cos-text-muted);
  border: 1px solid var(--cos-border);
  font-size: 10px;
  font-weight: 700;
  cursor: help;
  position: relative;
  margin-left: 4px;
}
.cos-info-icon:hover {
  background: var(--cos-blue-bg);
  color: var(--cos-blue);
  border-color: var(--cos-blue);
}
.cos-info-icon:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--cos-bg-surface);
  border: 1px solid var(--cos-border);
  color: var(--cos-text-primary);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 400;
  line-height: 1.4;
  white-space: normal;
  width: 240px;
  box-shadow: var(--cos-shadow-lg);
  z-index: 1000;
  pointer-events: none;
}

/* Quick Start Cards Grid */
.cos-quickstart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.cos-quickstart-card {
  background: var(--cos-bg-card);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-md);
  padding: 20px;
  cursor: pointer;
  transition: var(--cos-transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--cos-shadow);
}
.cos-quickstart-card:hover {
  transform: translateY(-2px);
  border-color: var(--cos-border-hover);
  background: var(--cos-bg-card-hover);
  box-shadow: var(--cos-shadow-lg);
}
.cos-quickstart-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}
.icon-blue { background: var(--cos-blue-bg); color: var(--cos-blue); }
.icon-orange { background: var(--cos-orange-bg); color: var(--cos-orange); }
.icon-teal { background: var(--cos-teal-bg); color: var(--cos-teal); }
.icon-white { background: var(--cos-bg-card-light); color: var(--cos-text-primary); }

.cos-quickstart-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--cos-text-primary);
  margin: 0 0 6px 0;
}
.cos-quickstart-desc {
  font-size: 12.5px;
  color: var(--cos-text-secondary);
  line-height: 1.4;
  margin: 0 0 14px 0;
}
.cos-quickstart-action {
  font-size: 12px;
  font-weight: 600;
  color: var(--cos-blue);
  display: flex;
  align-items: center;
  gap: 4px;
}
.cos-quickstart-card:hover .cos-quickstart-action {
  color: var(--cos-orange);
}

/* KPI Cards Grid */
.cos-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.cos-kpi-card {
  background: var(--cos-bg-card);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-md);
  padding: 18px 20px;
  transition: var(--cos-transition);
  box-shadow: var(--cos-shadow);
}
.cos-kpi-card:hover {
  border-color: var(--cos-border-hover);
}
.cos-kpi-kicker {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--cos-text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.cos-kpi-value {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--cos-text-primary);
  margin-bottom: 4px;
}
.cos-kpi-sub {
  font-size: 11.5px;
  color: var(--cos-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.cos-val-up { color: var(--cos-teal); font-weight: 600; }
.cos-val-down { color: var(--cos-red); font-weight: 600; }
.cos-val-orange { color: var(--cos-orange); font-weight: 600; }

/* Bento Visuals Grid */
.cos-bento-2col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

/* Multi-Step Wizard Styling */
.cos-wizard-wrap {
  max-width: 960px;
  margin: 0 auto;
}
.cos-wizard-progress-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  margin-bottom: 32px;
  padding: 0 10px;
}
.cos-wizard-progress-bar::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 40px;
  right: 40px;
  height: 2px;
  background: var(--cos-border);
  z-index: 1;
}
.cos-wizard-progress-line {
  position: absolute;
  top: 18px;
  left: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--cos-blue), var(--cos-orange));
  z-index: 2;
  transition: width 0.3s ease;
}
.cos-step-node {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.cos-step-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--cos-bg-card);
  border: 2px solid var(--cos-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--cos-text-muted);
  transition: var(--cos-transition);
}
.cos-step-node.active .cos-step-circle {
  border-color: var(--cos-orange);
  background: var(--cos-orange-bg);
  color: var(--cos-orange);
  box-shadow: 0 0 14px var(--cos-orange-glow);
}
.cos-step-node.completed .cos-step-circle {
  border-color: var(--cos-teal);
  background: var(--cos-teal-bg);
  color: var(--cos-teal);
}
.cos-step-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--cos-text-muted);
  transition: var(--cos-transition);
}
.cos-step-node.active .cos-step-label {
  color: var(--cos-text-primary);
  font-weight: 700;
}

/* Channel Choices Grid in Step 4 */
.cos-channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.cos-channel-choice {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  padding: 10px 14px;
  border-radius: var(--cos-radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--cos-text-primary);
  cursor: pointer;
  transition: var(--cos-transition);
  user-select: none;
  -webkit-user-select: none;
}
.cos-channel-choice:hover {
  background: var(--cos-bg-card-hover);
  border-color: var(--cos-border-hover);
}
.cos-channel-choice input[type="checkbox"] {
  accent-color: var(--cos-blue);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Form Controls */
.cos-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 20px;
}
.cos-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.cos-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--cos-text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cos-input, .cos-select, .cos-textarea {
  background: var(--cos-input-bg);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-sm);
  padding: 10px 14px;
  color: var(--cos-text-primary);
  font-size: 14px;
  outline: none;
  transition: var(--cos-transition);
}
.cos-input:focus, .cos-select:focus, .cos-textarea:focus {
  border-color: var(--cos-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.cos-textarea {
  min-height: 80px;
  resize: vertical;
}

/* Competitor Ad Creative Card */
.cos-ad-card {
  background: var(--cos-bg-card);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--cos-transition);
  box-shadow: var(--cos-shadow);
}
.cos-ad-card:hover {
  border-color: var(--cos-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--cos-shadow-lg);
}
.cos-ad-media {
  position: relative;
  background: var(--cos-bg-card-light);
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.cos-ad-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.cos-ad-card:hover .cos-ad-img {
  transform: scale(1.03);
}
.cos-ad-platform-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--cos-bg-surface);
  backdrop-filter: blur(8px);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--cos-text-primary);
  border: 1px solid var(--cos-border);
}
.cos-ad-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.cos-ad-headline {
  font-size: 14px;
  font-weight: 700;
  color: var(--cos-text-primary);
  line-height: 1.35;
}
.cos-ad-copy {
  font-size: 12.5px;
  color: var(--cos-text-secondary);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cos-ad-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px solid var(--cos-border);
  font-size: 11.5px;
  color: var(--cos-text-muted);
}

/* Swipe File Button */
.cos-swipe-btn {
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  color: var(--cos-text-secondary);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--cos-transition);
}
.cos-swipe-btn:hover, .cos-swipe-btn.saved {
  background: var(--cos-orange-bg);
  color: var(--cos-orange);
  border-color: var(--cos-border-orange);
}

/* Modern Data Table */
.cos-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-md);
  background: var(--cos-bg-card);
}
.cos-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}
.cos-table th {
  background: var(--cos-bg-card-light);
  padding: 12px 16px;
  font-weight: 700;
  color: var(--cos-text-secondary);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--cos-border);
}
.cos-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--cos-border);
  color: var(--cos-text-primary);
}
.cos-table tr:hover td {
  background: var(--cos-bg-card-hover);
}

/* Print Styles for PDF Export */
@media print {
  .cos-sidebar, .cos-topbar, .cos-disclaimer-strip, .no-print {
    display: none !important;
  }
  .cos-main-viewport {
    width: 100% !important;
    padding: 0 !important;
    background: #fff !important;
    color: #000 !important;
  }
  .cos-card {
    background: #fff !important;
    border: 1px solid #ccc !important;
    color: #000 !important;
    box-shadow: none !important;
    page-break-inside: avoid;
  }
  .cos-title, .cos-kpi-value {
    color: #000 !important;
  }
}

/* ==========================================================================
   Responsive Mobile & Tablet Optimization
   ========================================================================== */
@media (max-width: 1024px) {
  .cos-mobile-menu-btn {
    display: flex;
  }
  .cos-splitter {
    display: none !important;
  }
  .cos-sidebar {
    position: fixed !important;
    top: 0 !important;
    bottom: 0 !important;
    left: -290px !important;
    width: 280px !important;
    min-width: 280px !important;
    max-width: 280px !important;
    height: 100vh !important;
    max-height: 100vh !important;
    z-index: 999;
    box-shadow: 10px 0 35px rgba(0, 0, 0, 0.4);
    transition: left 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .cos-sidebar.mobile-open {
    left: 0 !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    visibility: visible !important;
  }
  .cos-main-viewport {
    padding: 20px 18px 60px 18px;
    width: 100%;
  }
  .cos-topbar-controls {
    gap: 8px;
    overflow-x: auto;
    max-width: calc(100vw - 190px);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .cos-topbar-controls::-webkit-scrollbar {
    display: none;
  }
}

@media (max-width: 768px) {
  .cos-topbar {
    height: auto;
    padding: 10px 14px;
    flex-wrap: wrap;
    gap: 10px;
  }
  .cos-topbar-controls {
    width: 100%;
    max-width: 100%;
    justify-content: flex-start;
  }
  .cos-disclaimer-strip {
    font-size: 10.5px;
    padding: 6px 14px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .cos-main-viewport {
    padding: 16px 12px 50px 12px;
  }
  .cos-hero-banner {
    padding: 20px 16px;
  }
  .cos-hero-h1 {
    font-size: 22px;
    line-height: 1.3;
  }
  .cos-hero-tagline {
    font-size: 13px;
  }
  .cos-hero-actions-row {
    flex-direction: column;
    align-items: stretch;
  }
  .cos-hero-actions-row .cos-btn {
    width: 100%;
  }
  .cos-quickstart-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .cos-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .cos-bento-2col {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .cos-wizard-progress-bar {
    padding: 0 4px;
  }
  .cos-step-circle {
    width: 30px;
    height: 30px;
    font-size: 11px;
  }
  .cos-step-label {
    display: none;
  }
  .cos-form-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* ==========================================================================
   Competitor Ad Creative Ecosystem & Platform Mockup Styling
   ========================================================================== */

/* Filter Pills Row */
.cos-filter-pills-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.cos-filter-pill {
  background: var(--cos-bg-card-light);
  border: 1px solid var(--cos-border);
  color: var(--cos-text-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.cos-filter-pill:hover {
  background: var(--cos-bg-surface);
  border-color: var(--cos-border-hover);
  color: var(--cos-text-primary);
  transform: translateY(-1px);
}
.cos-filter-pill.active {
  background: var(--cos-blue);
  border-color: var(--cos-blue);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.35);
}

/* Live Competitor Telemetry Ecosystem Card */
.cos-ecosystem-hero-card {
  background: linear-gradient(135deg, var(--cos-bg-card) 0%, var(--cos-bg-card-light) 100%);
  border: 1px solid var(--cos-border);
  border-radius: var(--cos-radius-md);
  padding: 18px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: var(--cos-shadow);
}
.cos-ecosystem-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 280px;
}
.cos-ecosystem-thumb {
  width: 100px;
  height: 64px;
  border-radius: 8px;
  border: 1px solid var(--cos-border);
  object-fit: cover;
  background: var(--cos-bg-card-light);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.cos-ecosystem-info h4 {
  font-size: 15px;
  font-weight: 800;
  color: var(--cos-text-primary);
  margin: 0 0 4px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cos-ecosystem-info p {
  font-size: 12px;
  color: var(--cos-text-secondary);
  margin: 0;
  line-height: 1.4;
}

/* Instagram Post Header Overlay */
.cos-ig-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--cos-bg-surface);
  border-bottom: 1px solid var(--cos-border);
  font-size: 11.5px;
}
.cos-ig-profile {
  display: flex;
  align-items: center;
  gap: 8px;
}
.cos-ig-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--cos-border);
  background: #ffffff;
}
.cos-ig-user {
  font-weight: 700;
  color: var(--cos-text-primary);
  line-height: 1.1;
}
.cos-ig-sub {
  font-size: 9.5px;
  color: var(--cos-text-muted);
}
.cos-ig-cta-bar {
  background: #3b82f6;
  color: #ffffff;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Google SERP Card Mockup */
.cos-serp-preview-box {
  padding: 16px;
  background: var(--cos-bg-card-light);
  border-radius: 8px;
  border: 1px solid var(--cos-border);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
.cos-serp-url-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--cos-text-secondary);
  margin-bottom: 6px;
}
.cos-serp-favicon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
}
.cos-serp-badge {
  font-weight: 700;
  font-size: 11px;
  color: var(--cos-text-primary);
}
.cos-serp-title {
  font-size: 16px;
  font-weight: 600;
  color: #1a0dab;
  line-height: 1.3;
  margin-bottom: 6px;
  cursor: pointer;
}
body[data-theme="dark"] .cos-serp-title {
  color: #8ab4f8;
}
.cos-serp-snippet {
  font-size: 12.5px;
  color: var(--cos-text-secondary);
  line-height: 1.45;
  margin-bottom: 12px;
}
.cos-serp-sitelinks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--cos-border);
}
.cos-serp-sitelink-item {
  font-size: 11.5px;
  color: #1a0dab;
  font-weight: 600;
  padding: 4px 6px;
  background: var(--cos-bg-surface);
  border-radius: 4px;
  border: 1px solid var(--cos-border);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
body[data-theme="dark"] .cos-serp-sitelink-item {
  color: #8ab4f8;
}

/* TikTok Mobile Video Overlay */
.cos-tiktok-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 12px;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, transparent 40%, rgba(0,0,0,0.85) 100%);
  color: #ffffff;
}
.cos-tiktok-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 700;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}
.cos-tiktok-actions {
  position: absolute;
  right: 10px;
  bottom: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.cos-tiktok-action-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 10px;
  font-weight: 700;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}
.cos-tiktok-bottom {
  padding-right: 48px;
}
.cos-tiktok-handle {
  font-size: 12.5px;
  font-weight: 800;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.cos-tiktok-caption {
  font-size: 11.5px;
  line-height: 1.35;
  margin-bottom: 6px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}
.cos-tiktok-sound {
  font-size: 10.5px;
  display: flex;
  align-items: center;
  gap: 5px;
  opacity: 0.9;
}

/* YouTube Video Player Overlay */
.cos-yt-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 10px;
  background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, transparent 50%, rgba(0,0,0,0.85) 100%);
  color: #ffffff;
}
.cos-yt-top-badge {
  background: rgba(0,0,0,0.7);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  align-self: flex-start;
}
.cos-yt-skip-btn {
  align-self: flex-end;
  background: rgba(0,0,0,0.8);
  border: 1px solid rgba(255,255,255,0.3);
  color: #ffffff;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
}
.cos-yt-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 4px;
}
.cos-yt-channel {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
}
.cos-yt-channel img {
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

/* Ad Inspector Modal */
.cos-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.cos-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}
.cos-modal-box {
  background: var(--cos-bg-card);
  border: 1px solid var(--cos-border);
  border-radius: 16px;
  max-width: 760px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
  transform: translateY(20px) scale(0.98);
  transition: all 0.25s ease;
}
.cos-modal-backdrop.open .cos-modal-box {
  transform: translateY(0) scale(1);
}
.cos-modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--cos-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cos-modal-body {
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 680px) {
  .cos-modal-body {
    grid-template-columns: 1fr;
  }
}
.cos-modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--cos-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}