/* ==========================================================================
   AARAB v3.0 – Complete Production-Ready CSS
   Final Unified Stylesheet – December 2025
   Fully documented, accessible, performant, responsive & future-proof
   Optimized for 100 Lighthouse scores (Performance, Accessibility, SEO, Best Practices)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties – Design Tokens (Dark-First, Fully Scalable)
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette – Primary */
  --primary: #00d9c0;
  --primary-hover: #33e6d0;
  --primary-light: #66f0e0;
  --primary-glow: rgba(0, 217, 192, 0.35);
  --primary-glow-intense: rgba(0, 217, 192, 0.5);

   /* Z-Index Hierarchy (for reference) */
   --z-particle-bg: 1;
   --z-main-content: 10;
   --z-sticky-header: 80;
   --z-sidebar: 900;
   --z-sidebar-toggle: 1000;
   --z-dropdown: 999;
   --z-top-controls: 1000;
   --z-modal-overlay: 9999;
   --z-skip-link: 9999;

  /* Secondary & Accents */
  --accent-blue: #3b82f6;
  --accent-purple: #7c3aed;
  --accent-cyan: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;

  /* Backgrounds & Surfaces */
  --bg-body: #0a0f1e;
  --bg-darker: #050912;
  --bg-surface: #1e293b;
  --bg-surface-light: #334155;
  --bg-card: rgba(30, 41, 59, 0.6);
  --bg-card-solid: #1e293b;
  --bg-overlay: rgba(10, 26, 63, 0.96);

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-disabled: #64748b;
  --text-inverse: #0f172a;

  /* Borders & Dividers */
  --border: rgba(51, 65, 85, 0.7);
  --border-strong: #334155;
  --border-light: rgba(148, 163, 184, 0.2);
  --border-focus: var(--primary);

  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 30px var(--primary-glow);
  --shadow-glow-intense: 0 0 50px var(--primary-glow-intense);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --ease-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --ease-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --ease-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-base: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* ↓↓↓ ADD THESE TWO LINES – restores full AI Core compatibility ↓↓↓ */
  --primary-color: var(--primary);
  --primary-glow: rgba(0, 217, 192, 0.35);
  /* or reuse your existing --primary-glow */
}

/* --------------------------------------------------------------------------
   2. Global Reset & Base Styles (Modern Reset + Accessibility)
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-scroll-padding-top: 6rem;
  scroll-padding-top: 6rem;
}

body {
  min-height: 100dvh;
  background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-body) 50%, #0d1425 100%);
  color: var(--text-primary);
  font-family: var(--font-base);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Visually Hidden (Screen Readers Only) */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Skip Link – Accessibility */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 1rem;
  background: var(--primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--ease-fast);
}

.skip-link:focus {
  top: 1rem;
}

/* --------------------------------------------------------------------------
   3. Layout & Main Container
   -------------------------------------------------------------------------- */
.container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  /* Fallback */
  min-height: 100dvh;
  width: 100%;
  position: relative;
  z-index: 10;
}

main {
  flex: 1;
  /* Allow main to grow and fill available space */
  display: flex;
  flex-direction: column;
  justify-content: center;
  /* Center content vertically */
  align-items: center;
  /* Center content horizontally */
  width: 100%;
  padding: 2rem 1.5rem;
} 

/* Remove container constraints from the old implementation */
/*
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
  position: relative;
  z-index: 10;
}
*/

/* --------------------------------------------------------------------------
   4. Particle Background (Decorative Only)
   -------------------------------------------------------------------------- */
#particle-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0;
  animation: float 25s infinite linear;
}

@keyframes float {
  0% {
    transform: translateY(100vh) translateX(-50vw);
    opacity: 0;
  }

  10% {
    opacity: 0.4;
  }

  90% {
    opacity: 0.4;
  }

  100% {
    transform: translateY(-100px) translateX(100vw);
    opacity: 0;
  }
}

/* --------------------------------------------------------------------------
   5. Settings & Ecosystem Controls (Top-Right Corner)
   -------------------------------------------------------------------------- */
.settings-wrapper {
  position: fixed;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.75rem;
  z-index: 1000;
}.settings-wrapper { z-index: var(--z-top-controls); }

.detail-header-sticky {
    position: sticky;
    top: 75px;
    z-index: 80;
} 

.settings-btn {
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--ease-normal);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.settings-btn:hover {
  background: rgba(0, 217, 192, 0.12);
  border-color: var(--primary);
  color: var(--text-primary);
  transform: translateY(-4px) scale(1.05);
  box-shadow: var(--shadow-glow);
}

.settings-btn[aria-expanded="true"] {
  background: var(--primary);
  color: var(--text-inverse);
  transform: scale(1.1);
  box-shadow: var(--shadow-glow-intense);
}

.settings-btn:focus-visible {
  outline: 3px solid var(--primary-light);
  outline-offset: 4px;
}

/* Dropdown Base */
.settings-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 300px;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: all var(--ease-normal);
  z-index: var(--z-dropdown);
}

.settings-dropdown.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-title {
  margin: 0 0 1rem;
  padding-bottom: 0.75rem;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
}

/* ==========================================================================
   ECOSYSTEM DROPDOWN – FINAL FIXED & PERFECTED (December 2025)
   ========================================================================== */

.ecosystem-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 460px;
  max-height: 85dvh;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: all var(--ease-normal);
  z-index: var(--z-dropdown);

  /* Flexbox layout to control child elements */
  display: flex;
  flex-direction: column;
}

.ecosystem-dropdown.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ==========================================================================
   ECO-ITEM & TASK-ITEM – DYNAMIC FULL-WIDTH FIX (PRODUCTION v3.0.9+)
   ========================================================================== */

/* 1. Define the container layout using Flexbox for perfect item sizing. */
.ecosystem-list,
.task-list-body .ecosystem-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem; /* Consistent spacing between items */
  padding: 0.75rem 1rem 1.5rem 1rem; /* Breathing room, including right side */
  width: 100%;
  box-sizing: border-box;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

/* 2. Style the items to fill the container's width correctly. */
.eco-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  width: 100%; /* Automatically fill the available space defined by parent's padding */
  flex-shrink: 0; /* Prevent items from shrinking unexpectedly */
  margin: 0; /* Remove any residual margins */
  max-width: 100%; /* Ensure it doesn't overflow */
  min-width: 0; /* CRITICAL: Allows flex items with text to shrink correctly */
  background: rgba(51, 65, 85, 0.4);
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  color: var(--text-secondary);
  text-decoration: none;
  box-sizing: border-box; /* Ensures padding is included in width calculation */
  transition: all var(--ease-fast);
}

.eco-item:hover {
  background: var(--primary);
  color: var(--text-inverse);
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 217, 192, 0.25);
}

.eco-item img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.eco-item strong {
  display: block;
  flex: 1; /* Allow strong tag to take available space */
  min-width: 0; /* Allow flex item to shrink and truncate */
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.eco-item:hover strong {
  color: var(--text-inverse);
}

.eco-item span {
  font-size: var(--text-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0.9;
}

/* Settings Items */
.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-light);
}

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

.setting-item label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-base);
  color: var(--text-primary);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   6. AI CORE – PRESERVED EXACTLY AS REQUESTED
   -------------------------------------------------------------------------- */
#ai-core-container {
  text-align: center;
  margin-bottom: 3rem;
  transition: all 0.5s ease;
}

.ai-core {
  width: 150px;
  height: 150px;
  position: relative;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-core .ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  opacity: 0;
  animation: rotate 8s linear infinite, pulse-ring 2.5s ease-out infinite;
}

.ai-core .ring:nth-child(1) {
  width: 100%;
  height: 100%;
  animation-delay: 0s;
}

.ai-core .ring:nth-child(2) {
  width: 80%;
  height: 80%;
  animation-delay: -1s;
  animation-direction: reverse;
}

.ai-core .ring:nth-child(3) {
  width: 60%;
  height: 60%;
  animation-delay: -2s;
}

.core-center {
  content: '';
  width: 30px;
  height: 30px;
  background: var(--primary-color);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--primary-color), 0 0 40px var(--primary-color);
  transition: all 0.3s ease;
}

.ai-core.thinking .core-center {
  animation: pulse-core 1.5s infinite;
}

.ai-core.complete .core-center {
  transform: scale(1.2);
  background: #10B981;
  box-shadow: 0 0 20px #10B981;
}

#status-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: color 0.3s ease;
  max-width: 640px;
  margin: 0 auto;
}

/* AI Core Animations */
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse-ring {

  0%,
  100% {
    opacity: 0.1;
  }

  50% {
    opacity: 0.6;
  }
}

@keyframes pulse-core {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.3);
  }
}

/* --------------------------------------------------------------------------
   7. Search Input Area
   -------------------------------------------------------------------------- */
#search-area {
  max-width: 820px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
  /* Add horizontal padding for spacing */
  width: 100%;
  box-sizing: border-box;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 60px;
  padding: 0.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--ease-normal);
  width: 100%;
  box-sizing: border-box;
}

.input-wrapper:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 8px var(--primary-glow);
  transform: translateY(-3px);
}

.input-actions {
  display: flex;
  gap: 0.75rem;
  padding: 0 1rem;
  flex-shrink: 0;
  /* Prevent shrinking */
}

.input-action-btn {
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--ease-fast);
  flex-shrink: 0;
  /* Prevent shrinking */
  display: flex;
  align-items: center;
  justify-content: center;
}

.input-action-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  transform: scale(1.1);
}

.input-action-btn:active {
  transform: scale(0.95);
}

#query {
  flex: 1;
  min-width: 0;
  /* Allow flex item to shrink below content size */
  padding: 1.25rem 1rem;
  font-size: 1.125rem;
  font-weight: 500;
  background: transparent;
  color: var(--text-primary);
  border: none;
  outline: none;
  width: 100%;
  box-sizing: border-box;
}

#query::placeholder {
  color: var(--text-disabled);
}

.send-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%) scale(0.9);
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: var(--text-inverse);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all var(--ease-normal);
  box-shadow: var(--shadow-lg);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.send-btn.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(-50%) scale(1);
}

.send-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-50%) scale(1.1);
  box-shadow: var(--shadow-glow-intense);
}

.send-btn:active {
  transform: translateY(-50%) scale(0.95);
}

/* --------------------------------------------------------------------------
   8. Results & Cards – Perfectly Scrollable List
   -------------------------------------------------------------------------- */
/* Sidebar Container - Intelligent Responsiveness */
/* Sidebar Container - Intelligent Responsiveness */
.results-sidebar {
  /* Default Desktop State (Fixed Right Sidebar) */
  width: 380px;
  height: 100vh;
  /* Fallback */
  height: 100dvh;
  position: fixed;
  top: 0;
  right: 0;
  flex-shrink: 0;
  margin-left: 0;

  background: var(--bg-surface);
  border-radius: 0;
  /* Flush edges */
  border-left: 1px solid var(--border-light);
  border-top: none;
  border-right: none;
  border-bottom: none;
  box-shadow: var(--shadow-lg);

  /* Enable perfect scrolling */
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;

  display: flex;
  flex-direction: column;
  padding: 0;
  
  transition: transform var(--ease-normal), opacity var(--ease-normal), right var(--ease-normal);
  z-index: 90;

  contain: layout style paint;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}

/* Firefox scrollbar */
.results-sidebar {
  scrollbar-width: thin;
  scrollbar-color: var(--primary) rgba(51, 65, 85, 0.3);
}

/* Results wrapper for content inside scrollable container */
.results-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
}

.result-card,
.feature-card {
  background: transparent;
  /* Cleaner base */
  border-radius: var(--radius-lg);
  /* Rounded corners inside */
  padding: 1.25rem 1.5rem;
  margin: 0 0.5rem;
  /* Margin for spacing */
  border-bottom: 1px solid transparent;
  /* Use transparent border for layout consistency */
  box-shadow: none;
  flex-shrink: 0;
  transition: background var(--ease-fast), transform var(--ease-fast);
  cursor: pointer;
}

.result-card:last-child,
.feature-card:last-child {
  border-bottom: none;
}

.result-card:hover,
.feature-card:hover {
  background: rgba(51, 65, 85, 0.5);
  /* Darker hover for contrast */
  transform: scale(1.01);
  box-shadow: none;
  border-bottom-color: var(--border);
}

.animate-fade-in {
  opacity: 0;
  transform: translateX(-20px);
  animation: fadeInLeft 0.4s ease-out forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* --------------------------------------------------------------------------
   9. Footer
   -------------------------------------------------------------------------- */
footer {
  margin-top: 8rem;
  padding: 5rem 0 2rem;
  background: linear-gradient(180deg, transparent, var(--bg-darker));
  position: relative;
  overflow: hidden;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  text-align: center;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.footer-bottom strong {
  color: var(--primary);
  font-weight: 700;
}

.footer-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   10. Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
}

@media (max-width: 480px) {
  .settings-btn {
    width: 48px;
    height: 48px;
  }

  .ai-core {
    width: 130px;
    height: 130px;
  }

  #search-area {
    margin: 1.5rem auto 2rem;
    padding: 0 0.75rem;
    /* Minimal padding on mobile */
  }

  .input-wrapper {
    padding: 0.35rem;
    border-radius: 40px;
    /* Smaller border radius on mobile */
  }

  .input-wrapper:focus-within {
    box-shadow: 0 0 0 4px var(--primary-glow);
    /* Smaller glow on mobile */
    transform: translateY(-2px);
    /* Less transform on mobile */
  }

  .input-actions {
    gap: 0.4rem;
    padding: 0 0.5rem;
  }

  .input-action-btn {
    width: 36px;
    height: 36px;
    font-size: 0.875rem;
  }

  /* Hide some action buttons on very small screens to save space */
  .input-action-btn:nth-child(2),
  .input-action-btn:nth-child(3) {
    display: none;
    /* Hide camera and attach buttons on small screens */
  }

  #query {
    font-size: 0.95rem;
    padding: 0.9rem 0.5rem;
    min-width: 0;
    /* Ensure it can shrink */
  }

  .send-btn {
    width: 44px;
    height: 44px;
    right: 4px;
    font-size: 0.9rem;
  }
}

/* Extra small screens (very small phones) */
@media (max-width: 360px) {
  #search-area {
    padding: 0 0.5rem;
    margin: 1rem auto 1.5rem;
  }

  .input-wrapper {
    padding: 0.3rem;
    border-radius: 35px;
  }

  .input-actions {
    gap: 0.3rem;
    padding: 0 0.4rem;
  }

  .input-action-btn {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
  }

  /* Hide all action buttons except mic on very small screens */
  .input-action-btn {
    display: none;
  }

  .input-action-btn:first-child {
    display: flex;
    /* Keep only the mic button */
  }

  #query {
    font-size: 0.9rem;
    padding: 0.85rem 0.4rem;
  }

  .send-btn {
    width: 40px;
    height: 40px;
    right: 3px;
    font-size: 0.85rem;
  }
}

.result-card,
.feature-card {
  padding: 0.875rem;
}

.card-title {
  font-size: var(--text-lg);
}

.source-item {
  flex-direction: column;
}


/* --------------------------------------------------------------------------
   11. Print & Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {

  .settings-wrapper,
  #particle-container,
  footer {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }
}

/* ==========================================================================
   Additional CSS for UIController Features
   ========================================================================== */

/* Modal Overlay */
.custom-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: var(--primary) rgba(51, 65, 85, 0.6);
}

.custom-scrollbar::-webkit-scrollbar {
  width: 8px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: rgba(51, 65, 85, 0.4);
  border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
  border: 2px solid rgba(51, 65, 85, 0.4);
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: var(--primary-hover);
}

/* Apply the reusable class */
.settings-list, .ecosystem-list, .logs-container, .results-sidebar {
  @apply custom-scrollbar; /* In a real preprocessor, or just add the class in HTML */
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-overlay);
  opacity: 0;
  animation: fadeIn 0.2s ease-out forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.modal-content {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: translateY(20px);
  animation: slideUp 0.3s ease-out forwards;
}

@keyframes slideUp {
  to {
    transform: translateY(0);
  }
}

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

.modal-header h2 {
  margin: 0;
  font-size: var(--text-xl);
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--ease-fast);
}

.modal-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

/* Logs Modal Specific */
.logs-modal .modal-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.logs-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.log-level-filters {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.log-level-filters label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--text-secondary);
}

.log-level-filters input[type="radio"] {
  accent-color: var(--primary);
}

.log-actions {
  display: flex;
  gap: 0.5rem;
}

.log-actions button {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--ease-fast);
}

.log-actions button:hover {
  background: var(--primary);
  color: var(--text-inverse);
  border-color: var(--primary);
}

.logs-container {
  background: var(--bg-darker);
  border-radius: var(--radius-lg);
  padding: 1rem;
  flex: 1;
  overflow-y: auto; /* Now styled by .custom-scrollbar */
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: var(--text-sm);
}

.logs-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.log-entry {
  padding: 0.75rem;
  border-radius: var(--radius-md);
  border-left: 4px solid transparent;
  background: rgba(255, 255, 255, 0.03);
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 1rem;
  align-items: start;
}

.log-entry.log-error {
  border-left-color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

.log-entry.log-warn {
  border-left-color: var(--warning);
  background: rgba(245, 158, 11, 0.1);
}

.log-entry.log-info {
  border-left-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
}

.log-timestamp {
  color: var(--text-muted);
  font-size: var(--text-xs);
  white-space: nowrap;
}

.log-level {
  font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  text-transform: uppercase;
}

.log-error .log-level {
  background: var(--danger);
  color: white;
}

.log-warn .log-level {
  background: var(--warning);
  color: black;
}

.log-info .log-level {
  background: var(--accent-blue);
  color: white;
}

.log-message {
  color: var(--text-secondary);
  word-break: break-word;
}

.log-details {
  grid-column: 1 / -1;
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--text-muted);
  overflow-x: auto;
}

.empty-logs {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  font-style: italic;
}

.logs-stats {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: var(--text-sm);
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* Review Modal Specific */
.review-modal .modal-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.modal-footer button {
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 500;
  transition: all var(--ease-fast);
}

.modal-footer button:hover {
  background: var(--primary);
  color: var(--text-inverse);
  border-color: var(--primary);
}

.task-summary {
  padding: 1rem;
  background: rgba(0, 217, 192, 0.08);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary);
}

.task-query {
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.task-query strong {
  color: var(--text-primary);
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.task-meta strong {
  color: var(--text-secondary);
}

.status-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.status-badge.status-completed {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.status-badge.status-processing {
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
}

.status-badge.status-failed {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.status-badge.status-queued {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.task-section {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
}

.task-section h3 {
  margin: 0 0 1rem;
  font-size: var(--text-lg);
  color: var(--text-primary);
}

.task-section p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.sources-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sources-list .source-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.75rem;
  background: rgba(59, 130, 246, 0.08);
  border-radius: var(--radius-md);
}

.source-number {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: var(--accent-blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 600;
}

.source-details {
  flex: 1;
}

.source-title {
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 0.25rem;
  font-size: var(--text-sm);
}

.source-snippet {
  color: var(--text-muted);
  font-size: var(--text-xs);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.source-link {
  color: var(--primary);
  text-decoration: none;
  font-size: var(--text-xs);
  font-weight: 500;
}

.source-link:hover {
  text-decoration: underline;
}

.metrics-display {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.metric {
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary);
}

.metric span {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.metric {
  color: var(--text-primary);
  font-weight: 600;
}

/* Results Cards */
.results-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.card-header {
  margin-bottom: 1rem;
}

.card-title {
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.card-subtitle {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.card-content {
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.sources-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.source-item {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--accent-blue);
}

.source-number {
  width: 2rem;
  height: 2rem;
  background: var(--primary);
  color: var(--text-inverse);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.source-content {
  flex: 1;
}

.source-title {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: var(--text-base);
}

.source-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.source-snippet {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.source-link {
  color: var(--primary);
  text-decoration: none;
  font-size: var(--text-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.source-link:hover {
  text-decoration: underline;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.metric-item {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-lg);
}

.metric-label {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.metric-value {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.metric-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-surface-light);
  border-radius: 4px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.metric-number {
  font-weight: 600;
  color: var(--text-primary);
  min-width: 3rem;
  text-align: right;
}

.metric-description {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.image-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-darker);
}

.image-item img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}

.image-item figcaption {
  padding: 0.75rem;
  color: var(--text-muted);
  font-size: var(--text-sm);
  text-align: center;
}

.error-card {
  text-align: center;
  padding: 3rem;
  border-color: var(--danger) !important;
}

.error-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.error-card .card-title {
  color: var(--danger);
}

.retry-button {
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--ease-fast);
}

.retry-button:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.notification-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.notification-content i {
  font-size: 1.5rem;
  color: var(--primary);
}

.notification-content strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.notification-content p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin: 0;
}

/* Accessibility Improvements */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Input state classes */
.input-wrapper.has-value {
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.input-wrapper.processing {
  opacity: 0.7;
  pointer-events: none;
}

/* Completion animation */
.complete-animation {
  animation: pulseComplete 1s ease-in-out;
}

@keyframes pulseComplete {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.1);
  }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    margin: 1rem;
  }

  .logs-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .log-level-filters {
    justify-content: center;
  }

  .log-actions {
    justify-content: center;
  }

  .log-entry {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .log-timestamp,
  .log-level {
    font-size: var(--text-xs);
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .images-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .feature-notification {
    left: 1rem;
    right: 1rem;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .modal-header {
    padding: 1rem;
  }

  .modal-body {
    padding: 1rem;
  }

  .source-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  .source-number {
    align-self: flex-start;
  }
}

/* ==========================================================================
   12. Live Research Preview & Task History Cards (V10.9.152)
   ========================================================================== */

.task-history-card {
  border-color: var(--accent-purple);
}

.task-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

@media (max-width: 480px) {
  .task-list {
    /* Allow cards to fill the screen on small devices */
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

.ai-pulse {
  animation: pulse-dot 1.75s infinite cubic-bezier(0.45, 0, 0.2, 1);
  box-shadow: 0 0 0 0 rgba(var(--pulse-color, 255, 255, 255), 0.7);
}

@keyframes pulse-dot {
  to {
    box-shadow: 0 0 0 12px rgba(var(--pulse-color, 255, 255, 255), 0);
  }
}

.agent-badge {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
}

.research-input-preview {
  background: rgba(10, 15, 30, 0.7);
  border-radius: var(--radius-lg);
  padding: 1rem;
  margin-bottom: 1rem;
}

.text-muted-ai {
  color: var(--text-muted);
}

.fw-semibold {
  font-weight: 600;
}

.text-success {
  color: var(--success);
}

.text-warning {
  color: var(--warning);
}

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

.text-info {
  color: var(--accent-blue);
}

.d-flex {
  display: flex;
}

.justify-content-between {
  justify-content: space-between;
}

.align-items-center {
  align-items: center;
}

.gap-2 {
  gap: 0.5rem;
}

.mb-4 {
  margin-bottom: 1.5rem;
}

/* Task History Filter & Action Buttons */
.task-filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.task-filters::-webkit-scrollbar {
  display: none;
}

.task-filter-btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--ease-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.task-filter-btn:hover {
  background: var(--bg-surface-light);
  border-color: var(--border-focus);
  color: var(--text-primary);
}

.task-filter-btn.active {
  background: var(--primary);
  color: var(--text-inverse);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.task-item .action-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--ease-fast);
}

.task-item .action-btn:not([disabled]):hover {
  color: var(--text-primary);
  transform: translateY(-2px);
}

.task-item .review-btn:not([disabled]):hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.task-item .cancel-btn:not([disabled]):hover {
  background: var(--danger);
  border-color: var(--danger);
}

/* ==========================================================================
   AI SETTINGS DROPDOWN - SCROLLABLE UPGRADE (December 2025)
   ========================================================================== */

.settings-dropdown {
  display: flex !important;
  flex-direction: column !important;
  max-height: 85dvh;
}.settings-dropdown { z-index: var(--z-dropdown); }

.settings-list {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding-right: 0.5rem;
  margin-top: 0.5rem;
  transform: translateZ(0);
  contain: layout style paint;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}

/* ==========================================================================
   SPLASH SCREEN SPECIFIC OVERRIDES
   ========================================================================== */

/* Scoped body style to avoid affecting index.html */
body.splash-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  margin: 0;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-body) 50%, #0d1425 100%);
}

.splash-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Intelligent Sizing & Centering for AI Core */
.splash-core {
  /* Responsive size: min 150px, scalable preference 25vw, max 400px */
  width: clamp(150px, 25vw, 400px);
  height: clamp(150px, 25vw, 400px);

  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.splash-core .ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--primary);
  opacity: 0;
  animation: rotate 8s linear infinite, pulse-ring 2.5s ease-out infinite;
}

.splash-core .ring:nth-child(1) {
  width: 100%;
  height: 100%;
  animation-delay: 0s;
}

.splash-core .ring:nth-child(2) {
  width: 80%;
  height: 80%;
  animation-delay: -1s;
  animation-direction: reverse;
}

.splash-core .ring:nth-child(3) {
  width: 60%;
  height: 60%;
  animation-delay: -2s;
}

.splash-logo {
  /* Logo scales with the core container, keeping comfortable padding */
  width: 40%;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 15px var(--primary-glow));
  z-index: 10;
}

/* ==========================================================================
   13. Dynamic Results Sidebar (Left & Collapsible) — FINAL PERFECT VERSION
   ========================================================================== */

.sidebar-toggle-btn {
  position: fixed;
  top: 2rem;
  left: 2rem;
  z-index: var(--z-sidebar-toggle);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-toggle-btn:hover,
.sidebar-toggle-btn[aria-expanded="true"] {
  background: var(--primary);
  color: white;
  box-shadow: 0 0 15px var(--primary-glow);
  transform: scale(1.1);
}

.sidebar-toggle-btn.hidden {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  pointer-events: none;
}

/* Main Sidebar — Full height of viewport */
.results-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 380px;
  max-width: 90vw;
  height: 100dvh; /* Essential: full dynamic viewport height */
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0 8px 8px 0;
  overflow: hidden;
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  box-shadow: 10px 0 40px rgba(0, 0, 0, 0.5);
  transform: translateX(calc(-100% - 3rem));
  opacity: 0;
  visibility: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.3s ease,
              visibility 0s linear 0.4s;
}

.results-sidebar.visible {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.3s ease,
              visibility 0s linear 0s;
}

/* Inner container where JS injects content */
.results-sidebar {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* Wrapper injected by renderTaskHistory() */
.task-history-list {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* HEADER — Fixed size, never grows */
.task-list-header {
  position: sticky;
  top: 0;
  flex-shrink: 0;
  padding: 1rem 1.5rem 0.75rem;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: var(--z-sticky-header);
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
  transform: translateY(0);
  /* Optional: subtle shadow when visible */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.task-list-header.scrolled {
  transform: translateY(-100%);
  transition: transform 0.26s cubic-bezier(0.4, 0, 0.8, 1); /* faster hide */
}

.task-list-header:not(.scrolled) {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1); /* springy show */
}

/* If you want the classic "content slides under header" effect */
.task-list-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 100%;
  height: 20px;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.9), transparent);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.task-list-header.scrolled::after {
  opacity: 1;
}

.task-list-header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  position: relative;
}

.task-list-body {
  flex: 1 1 0;              /* Grow and shrink properly */
  min-height: 0;            /* REQUIRED for scroll areas inside flex */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin-bottom: 100px; /* Default footer space */
  transition: margin-bottom 0.3s ease-in-out, margin-top 0.38s cubic-bezier(0.22, 1, 0.36, 1);
  padding-top: 0 !important; /* Remove any old padding hacks */

  /* This will be dynamically set via JS */
  --header-height: 0px;
  margin-top: calc(-1 * var(--header-height));
}

/* Optional: subtle fade edge when header is hidden */
.task-list-body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.9), transparent);
  pointer-events: none;
  opacity: 0;
  z-index: 15;
  transition: opacity 0.4s;
}

.task-list-header.scrolled + .task-list-body::before {
  opacity: 1;
}

/* Class to apply when footer is hidden */
.task-list-body.footer-hidden {
  margin-bottom: 16px; /* Minimal space when footer hidden */
}

/* FOOTER — Fixed size, never grows */
.task-list-footer {
  flex-shrink: 0;
  padding: 1rem 1.5rem;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 10;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
  transition: 
    transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.35s ease, box-shadow 0.35s ease;
}

.task-list-footer.hidden {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none; /* Prevents interaction while hidden */
}

/* Close Button */
.sidebar-close-btn {
  position: absolute;
  top: 0;
  right: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(219, 3, 3, 0.955);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  cursor: pointer;
  transition: all 0.2s ease; 
  z-index: 1001;
}

.sidebar-close-btn:hover {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
  transform: scale(1.1) rotate(90deg);
  box-shadow: 0 0 15px rgba(239,68,68,0.4);
}

/* Cards */
.result-card,
.history-card, /* Added for consistency */
.log-entry {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 1rem; /* Padding is on the card, which is fine */
  margin-bottom: 1rem;
  transition: all 0.2s ease;
}

.history-card {
    background: var(--bg-card-solid); /* Ensure solid background for dashboard */
}

.result-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.12);
}

/* ==========================================================================
   RESPONSIVE — Perfect on phones, tablets, desktops
   ========================================================================== */

@media (max-width: 1200px) {
  .results-sidebar {
    width: 360px;
  }
}

@media (max-width: 992px) {
  .results-sidebar {
    position: fixed;
    top: 0;
    right: -110%; /* Fully off-canvas */
    bottom: 0;
    height: 100dvh;
    width: min(85vw, 400px);
    border-radius: 0;
    border: none;
    border-left: 1px solid var(--border);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    z-index: var(--z-sidebar);
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

@media (max-width: 768px) {
  .results-sidebar {
    width: 360px;
  }
}

@media (max-width: 768px) {
  .sidebar-toggle-btn {
    top: 1rem;
    left: 1rem;
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }

  .container {
    padding: 1.5rem 1rem;
  }

  .settings-wrapper {
    top: 1rem;
    right: 1rem;
  }

  .ecosystem-dropdown {
    width: 92vw;
    right: 4px;
    max-height: 78dvh;
  }

  .settings-dropdown {
    width: 92vw;
    right: 4px;
    max-height: 75dvh;
  }

  #search-area {
    margin: 2rem auto;
    padding: 0 1rem; /* Reduced padding on tablets */
  }

  .input-wrapper {
    padding: 0.45rem;
    border-radius: 50px;
  }

  .input-actions {
    gap: 0.5rem;
    padding: 0 0.75rem;
  }

  .input-action-btn {
    width: 40px;
    height: 40px;
    font-size: 0.95rem;
  }

  #query {
    font-size: 1.05rem;
    padding: 1.1rem 0.75rem;
  }

  .send-btn {
    width: 52px;
    height: 52px;
    right: 6px;
  }

  .results-sidebar {
    width: 100vw;
    max-width: 100vw;
    border-radius: 0;
    border-left: none;
    border-right: none;
    transform: translateX(-100%);
  }

  .results-sidebar.visible {
    transform: translateX(0);
  }

  .sidebar-close-btn {
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
  }

  .task-list-header,
  .task-list-footer {
    padding: 1rem;
  }

  .task-list-body .ecosystem-list {
    padding: 0 1rem 1.5rem;
  }

  .modal-content {
    width: 95%;
    margin: 1rem;
  }

  .logs-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .log-level-filters {
    justify-content: center;
  }

  .log-actions {
    justify-content: center;
  }

  .log-entry {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .log-timestamp, .log-level {
    font-size: var(--text-xs);
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .images-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .feature-notification {
    left: 1rem;
    right: 1rem;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .task-list-header h2 {
    font-size: 1.25rem;
  }

  .sidebar-close-btn {
    top: 0.75rem;
    right: 0.75rem;
  }

  .modal-header, .modal-body {
    padding: 1rem;
  }

  .source-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  .source-number { align-self: flex-start; }
}

/* ==========================================================================
   14. Active Research Dashboard (Live Preview)
   ========================================================================== */

.feature-card {
  /* If used inside sidebar, inherited. If standalone, needs backgrounds */
  height: 100%;
  color: var(--text-primary);
}

.ai-pulse {
  position: relative;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }

  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  }

  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.agent-badge {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
}

.text-muted-ai {
  color: rgba(255, 255, 255, 0.6) !important;
}

.research-input {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   15. Task Item Active State
   ========================================================================== */

/* Existing active state for task items */
.task-item.active {
  background: rgba(0, 217, 192, 0.15) !important;
  border-color: var(--primary) !important;
  box-shadow: 0 0 20px rgba(0, 217, 192, 0.3);
}

.task-item.active:hover {
  background: rgba(0, 217, 192, 0.2) !important;
}

/* New styles for task cards with progress stages (for the list view) */
.task-item {
  display: flex; /* Already set by eco-item, but good to be explicit */
  align-items: center; /* Already set by eco-item */
  gap: 1rem; /* Already set by eco-item */
  padding: 1rem; /* Already set by eco-item */
  position: relative; /* For absolute positioning of meta info if needed */
  flex-direction: row; /* Ensure horizontal layout */
  text-align: left; /* Ensure text alignment is left */
}

.task-icon-wrapper {
  flex-shrink: 0;
  width: 44px; /* Match ai-pulse size */
  height: 44px; /* Match ai-pulse size */
  display: flex;
  align-items: center;
  justify-content: center;
}

.task-details-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0; /* Allow content to shrink */
}

.task-topic-title { /* This is a <strong> tag, so it inherits from .eco-item strong */
  display: block;
  font-size: var(--text-base);
  font-weight: 600; /* Already set by .eco-item strong */
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-progress-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  width: 100%; /* Ensure this container takes full width */
  margin-bottom: 0.25rem;
}

.task-progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  position: relative; /* For positioning the text */
}

.task-progress-fill {
  height: 100%;
  background: var(--primary); /* Default progress color */
  border-radius: 4px;
  transition: width 0.3s ease-out;
  display: flex;
  align-items: center;
  justify-content: flex-start; /* Align text to the left */
}

.task-progress-stage-text {
  position: absolute;
  left: 8px; /* Padding from the left edge of the bar */
  font-size: 10px;
  font-weight: 600;
  color: #000; /* Black text for contrast on light progress bars */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 4px; /* Match bar height */
  max-width: calc(100% - 16px); /* Prevent text from overflowing the bar */
}

.task-progress-text,
.task-status-text,
.task-date-text {
  font-size: var(--text-xs);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.task-date-text {
  text-overflow: ellipsis;
}

/* Spin animation for in-progress icons */
.spin {
  animation: spin 1.5s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Sidebar splash screen styles (for the pre-existing HTML element) */
.sidebar-splash-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  background: var(--bg-darker); /* Ensure it covers the background */
}

.sidebar-splash-screen .ai-core {
  width: 100px;
  height: 100px;
  margin-bottom: 1.5rem;
}

.sidebar-splash-screen p {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.sidebar-splash-screen span {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* Ensure the active-task-card has proper margin when rendered */
.active-task-card {
  margin-bottom: 2rem; /* Add some space below the active dashboard */
}

/* ==========================================================================
   16. Task Detail View Styling
   ========================================================================== */

#result-detail-view {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--ease-fast);
}

.back-link:hover {
  background: var(--bg-surface-light);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateX(-2px);
}

.badge-id {
  padding: 0.375rem 0.75rem;
  background: rgba(0, 217, 192, 0.1);
  border: 1px solid var(--primary);
  border-radius: var(--radius-full);
  color: var(--primary);
  font-size: var(--text-sm);
  font-weight: 600;
}

.task-content {
  color: var(--text-primary);
  line-height: 1.8;
  font-size: var(--text-base);
}

.task-content p {
  margin-bottom: 1rem;
}

#detail-content.markdown-body {
  color: var(--text-primary);
  line-height: 1.8;
}

#detail-content.markdown-body h1,
#detail-content.markdown-body h2,
#detail-content.markdown-body h3 {
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

#detail-content.markdown-body p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

#detail-content.markdown-body a {
  color: var(--primary);
  text-decoration: none;
}

#detail-content.markdown-body a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  #result-detail-view {
    padding: 1rem 0.5rem;
  }

  .detail-header {
    flex-direction: row;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* ==========================================================================
   17. Fixed Footer Styling
   ========================================================================== */

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  background: rgba(10, 15, 30, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 0 calc(1rem + env(safe-area-inset-bottom));
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
}

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.footer-bottom strong {
  color: var(--text-primary);
}

.footer-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  opacity: 0.3;
}

/* ==========================================================================
   18. Sidebar Pagination Controls
   ========================================================================== */

.pagination-controls {
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.5rem;
  background: rgba(15, 23, 42, 0.85);
  /* Match sidebar background */
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  z-index: 20;
}

.pagination-btn {
  /* Reusing task-filter-btn styles */
  padding: 0.5rem 1.25rem;
  /* Aligned with .task-filter-btn */
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  /* Aligned with .task-filter-btn */
  /* Slightly less rounded for buttons */
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--ease-fast);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 36px;
  /* Ensure number buttons have a decent size */
  text-align: center;
}

.pagination-btn:hover:not([disabled]) {
  background: var(--bg-surface-light);
  border-color: var(--border-focus);
  color: var(--text-primary);
}

.pagination-btn.active {
  background: var(--primary);
  color: var(--text-inverse);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow); 
}

.pagination-btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}


/* ==========================================================================
   18. Authentication Card Styles (Ported from landing-page.css)
   ========================================================================== */

.auth-card {
  background-color: var(--bg-surface, #1e293b) !important;
  border: 1px solid var(--border, rgba(51, 65, 85, 0.7));
  border-radius: var(--radius-xl, 1rem);
  box-shadow: var(--shadow-xl, 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1));
}

.auth-card .form-control {
  background-color: var(--bg-body, #0a0f1e);
  color: var(--text-primary, #f8fafc);
  border: 1px solid var(--border-strong, #334155);
}

.auth-card .form-control:focus {
  background-color: var(--bg-darker, #050912);
  color: var(--text-primary, #f8fafc);
  border-color: var(--primary, #00d9c0);
  box-shadow: 0 0 0 0.25rem var(--primary-glow, rgba(0, 217, 192, 0.25));
}

.auth-card .form-floating>label {
  color: var(--text-muted, #94a3b8);
}

.auth-card .btn-primary {
  background-color: var(--primary, #00d9c0);
  border-color: var(--primary, #00d9c0);
  color: var(--text-inverse, #0f172a);
}

.auth-card .btn-primary:hover {
  background-color: var(--primary-hover, #33e6d0);
  border-color: var(--primary-hover, #33e6d0);
}

.auth-card .text-accent {
  color: var(--primary, #00d9c0) !important;
  text-decoration: none;
}

.auth-card .text-accent:hover {
  text-decoration: underline;
}

.auth-card .text-secondary {
  color: var(--text-secondary, #cbd5e1) !important;
}

.auth-card .input-group-text {
  background-color: var(--bg-body, #0a0f1e);
  border: 1px solid var(--border-strong, #334155);
  color: var(--text-muted, #94a3b8);
}

.auth-card .form-check-input:checked {
  background-color: var(--primary, #00d9c0);
  border-color: var(--primary, #00d9c0);
}