:root {
  /* HSL Color Tokens for Premium Sleek Dark Theme */
  --bg-primary: HSL(222, 47%, 7%);       /* Deep rich dark slate-navy (#090d16) */
  --bg-secondary: HSL(222, 47%, 10%);   /* Card and header background (#0e1422) */
  --bg-tertiary: HSL(222, 47%, 14%);    /* Input fields and hover states (#151e30) */
  --bg-glass: rgba(11, 15, 22, 0.85);   /* Glowing dark glassmorphism */
  
  --accent-cyan: HSL(187, 92%, 46%);    /* Vibrant glowing cyan (#06b6d4) */
  --accent-blue: HSL(221, 83%, 53%);    /* Vibrant glowing blue (#3b82f6) */
  --accent-purple: HSL(263, 70%, 50%);  /* Sleek purple accent (#818cf8) */
  
  --accent-glow-cyan: rgba(6, 182, 212, 0.15);
  --accent-glow-purple: rgba(129, 140, 248, 0.15);
  
  --text-primary: HSL(210, 40%, 98%);   /* Bright white/slate text (#f8fafc) */
  --text-secondary: HSL(215, 20%, 75%); /* Soft light gray text (#cbd5e1) */
  --text-muted: HSL(215, 15%, 55%);     /* Muted gray text (#64748b) */
  
  --border-light: rgba(255, 255, 255, 0.08); /* Ultra subtle light border */
  --border-glow: rgba(59, 130, 246, 0.15);
  
  --color-primary: var(--accent-blue);
  --color-primary-light: var(--accent-cyan);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  --border-radius-sm: 4px;
  --border-radius-md: 6px;
  --border-radius-lg: 8px;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

/* Main Grid Layout */
.app-container {
  display: grid;
  grid-template-columns: 360px 1fr;
  min-height: 100vh;
  position: relative;
}

/* Left Sidebar - Options & Control Panel */
.sidebar {
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-light);
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  overflow-y: auto;
  height: 100vh;
  position: sticky;
  top: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  background: var(--text-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  font-weight: 900;
  box-shadow: none; /* No shadow */
}

.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

/* Sidebar Pipeline List */
.pipeline-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pipeline-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 1rem;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  box-shadow: none;
}

.pipeline-item:hover {
  border-color: var(--text-muted);
  transform: none;
  background-color: var(--bg-tertiary);
  box-shadow: none;
}

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

.pipeline-item.active::before {
  display: none; /* Strip linear gradient left border */
}

.pipeline-checkbox {
  margin-top: 0.2rem;
  accent-color: var(--accent-blue);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.pipeline-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pipeline-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pipeline-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.pipeline-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
  padding: 2px 6px;
  border-radius: 4px;
  width: max-content;
  color: white;
  margin-top: 4px;
}

/* Input Fields & Settings */
.inline-settings {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-light);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  cursor: default;
  width: 100%;
}

.setting-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.setting-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.input-select, .input-text, .input-number {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 0.6rem 0.75rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition-fast);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02);
}

.input-select:focus, .input-text:focus, .input-number:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Main Workspace Panel */
.workspace {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  height: 100vh;
  overflow-y: auto;
  background-color: var(--bg-primary);
}

/* Header */
.workspace-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.user-status {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.credit-badge {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

/* Buttons */
.btn-primary {
  background: var(--color-primary);
  border: none;
  border-radius: var(--border-radius-sm);
  color: white;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.65rem 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: none;
}

.btn-secondary {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.65rem 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: none;
}

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

.btn-premium {
  background: var(--accent-purple);
  border: none;
  border-radius: var(--border-radius-sm);
  color: white;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.65rem 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-premium:hover {
  opacity: 0.9;
  box-shadow: none;
  transform: none;
}

/* Drag and Drop Zone */
.dropzone {
  flex: 1;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-light);
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 3rem;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  min-height: 380px;
  box-shadow: none;
}

.dropzone::before {
  display: none; /* Strip radial highlight */
}

.dropzone:hover {
  border-color: var(--text-muted);
  background-color: var(--bg-tertiary);
  box-shadow: none;
}

.dropzone.drag-active {
  border-color: var(--text-primary);
  background-color: var(--bg-tertiary);
  box-shadow: none;
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-normal);
}

.dropzone-text {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dropzone-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

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

/* File list queue */
.file-list-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

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

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.file-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 1rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  position: relative;
  transition: var(--transition-fast);
  box-shadow: none;
}

.file-card:hover {
  border-color: var(--text-secondary);
  transform: none;
  box-shadow: none;
}

.file-preview {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-tertiary);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.file-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.file-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size-path {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Status Dot Indicators (Replaces background badge shapes) */
.file-status {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0;
  background: none !important;
}

.file-status::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-pending::before {
  background-color: #f59e0b;
}

.status-processing::before {
  background-color: #3b82f6;
  animation: statusPulse 1.5s infinite ease-in-out;
}

.status-completed::before {
  background-color: #10b981;
}

.status-error::before {
  background-color: #ef4444;
}

@keyframes statusPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.file-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.file-remove:hover {
  color: #ef4444;
  background-color: rgba(239, 68, 68, 0.06);
}

/* Process Indicator Bar */
.process-bar-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.process-stats {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.process-progress-bg {
  height: 8px;
  background-color: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.process-progress-fill {
  height: 100%;
  background: linear-gradient(to right, var(--accent-cyan), var(--accent-blue));
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* Modal Pricing */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  max-width: 800px;
  width: 100%;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.5rem;
  transition: var(--transition-fast);
}

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

.modal-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.modal-title {
  font-size: 1.75rem;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.pricing-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: var(--transition-normal);
  box-shadow: none;
}

.pricing-card:hover {
  border-color: var(--text-primary);
  transform: none;
  box-shadow: none;
}

.pricing-card.premium-pick {
  border-color: var(--text-primary);
  border-width: 2px;
  background-color: var(--bg-secondary);
  position: relative;
  box-shadow: none;
}

.pricing-card.premium-pick::before {
  content: 'Best Value';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--border-radius-sm);
  color: var(--bg-primary);
}

.pricing-tier {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
}

.pricing-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-features li::before {
  content: '✓';
  color: var(--accent-blue);
  font-weight: 800;
}

/* Animations */
@keyframes softPulse {
  0% { box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2); }
  50% { box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35); }
  100% { box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2); }
}

.pulse-glow {
  animation: softPulse 2.5s infinite ease-in-out;
}

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

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

::-webkit-scrollbar-thumb {
  background: HSL(214, 32%, 85%);
  border-radius: 4px;
}

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

@media (max-width: 900px) {
  .app-container {
    grid-template-columns: 1fr;
  }
  .sidebar {
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }
  .workspace {
    height: auto;
    padding: 1.5rem;
  }
}

/* 3. Navigation Menu Styles */
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 1rem;
}

.nav-item {
  background: none;
  border: none;
  text-align: left;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

/* 7. SEO Content Cards */
.seo-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.seo-h1 {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
}

.seo-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.seo-badge {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-tertiary);
  width: fit-content;
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius-sm);
}

/* 8. Comparison Tables Layout */
.seo-comparison {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 2rem;
  margin-top: 3rem;
}

.seo-comparison h3 {
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  text-align: left;
}

.comparison-table th, 
.comparison-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  background-color: var(--bg-tertiary);
  font-weight: 600;
  color: var(--text-primary);
}

.comparison-table td.highlight-local {
  color: var(--text-primary);
  font-weight: 600;
}

.comparison-table td.competitor-cell {
  color: var(--text-muted);
}

/* 9. FAQ Accordion Section */
.faq-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 2.5rem;
  margin-top: 1rem;
}

.faq-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1rem;
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  outline: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.5rem 0;
  cursor: pointer;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-icon {
  font-size: 1.2rem;
  color: var(--text-muted);
  font-weight: 400;
  transition: transform 0.2s ease;
}

.faq-answer {
  padding: 0.75rem 0 0.5rem 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 10. Programmatic SEO Footer */
.programmatic-footer {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-light);
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-column h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-column ul li a {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-column ul li a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.75rem;
}

/* 11. Dedicated Comparison Layout */
.dedicated-comparison-view {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.comparison-pitch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.pitch-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 1.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.pitch-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary-light);
}

.pitch-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.pitch-card p {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Premium Toast Notification */
.app-notification {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 320px;
  max-width: 450px;
  padding: 16px 20px;
  border-radius: 12px;
  background: rgba(26, 26, 36, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: all 0.3s ease;
}

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

.app-notification.error {
  border-left: 4px solid #ef4444;
}

.app-notification.success {
  border-left: 4px solid #10b981;
}

.app-notification.info {
  border-left: 4px solid #3b82f6;
}

.notification-content {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #f3f4f6;
  font-size: 0.925rem;
  line-height: 1.4;
  font-weight: 500;
}

.notification-icon {
  font-size: 1.2rem;
}

.notification-close {
  background: transparent;
  border: none;
  color: #9ca3af;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0;
  margin-left: 16px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.notification-close:hover {
  color: #f3f4f6;
}

/* ==========================================
   12. Premium Landing Page Styles
   ========================================== */

.app-container.landing-mode {
  grid-template-columns: 1fr;
}

.landing-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-primary);
}

/* Header Navbar */
.landing-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 4rem;
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
}

.landing-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  text-decoration: none;
}

.landing-logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--text-primary);
  color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
}

.landing-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.landing-nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.landing-nav-link:hover {
  color: var(--text-primary);
}

.landing-header-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Hero Section */
.landing-hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 6rem 4rem;
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  min-height: 75vh;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.hero-tag {
  align-self: flex-start;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  color: var(--text-secondary);
}

.hero-title {
  font-size: 3.75rem;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.hero-title span {
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

/* Integrated Hero Uploader Card */
.hero-uploader-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.01);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  overflow: hidden;
}

.hero-uploader-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(to right, #4f46e5, #06b6d4);
}

.hero-uploader-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

/* Feature Grid Section */
.landing-section {
  padding: 6rem 4rem;
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  border-top: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 4rem auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.section-subtitle {
  font-size: 0.875rem;
  font-weight: 700;
  color: #4f46e5;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-main-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  text-decoration: none;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.03);
  border-color: rgba(79, 70, 229, 0.3);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background-color: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--text-primary);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.feature-card:hover .feature-icon-wrapper {
  background-color: #4f46e5;
  color: #fff;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-card-cta {
  font-size: 0.8rem;
  font-weight: 700;
  color: #4f46e5;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: auto;
}

/* Stats Section */
.stats-banner {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 3rem;
  text-align: center;
  gap: 2rem;
  margin-bottom: 4rem;
}

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

.stat-number {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-heading);
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* FAQ Section styling */
.landing-faq-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 800px;
  margin: 0 auto;
}

.landing-faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 1.5rem 1.75rem;
}

.landing-faq-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.landing-faq-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Footer Section */
.landing-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
  padding: 4rem 4rem 2rem 4rem;
  margin-top: auto;
}

.footer-content {
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 320px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .landing-hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 4rem 2rem;
    text-align: center;
  }
  .hero-tag {
    align-self: center;
  }
  .hero-description {
    margin: 0 auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .landing-header {
    padding: 1.25rem 2rem;
  }
  .landing-section {
    padding: 4rem 2rem;
  }
  .stats-banner {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 2rem;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

/* Header Dropdown Menu */
.landing-nav-dropdown-wrapper {
  position: relative;
  display: inline-block;
}

.dropdown-chevron {
  width: 10px;
  height: 10px;
  margin-left: 4px;
  transition: transform 0.2s ease;
  display: inline-block;
  vertical-align: middle;
}

.dropdown-chevron.rotate {
  transform: rotate(180deg);
}

.landing-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 0.5rem;
  width: 250px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 0 1px rgba(255, 255, 255, 0.1);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 200;
}

.landing-dropdown-menu a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  text-align: left;
}

.landing-dropdown-menu a:hover {
  background-color: var(--bg-tertiary);
  color: var(--accent-cyan);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-light);
  margin: 0.35rem 0;
}

.dropdown-section-title {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  margin-top: 0.25rem;
}

/* Container for centered landing content */
.landing-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

/* Header Content Centered */
.landing-header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Footer Content Centered */
.landing-footer-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* Pipeline Visualizer */
.pipeline-visualizer {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}
.pipeline-flow-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}
.pipeline-flow-steps {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.pipeline-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.pipeline-step.active {
  border-color: rgba(6, 182, 212, 0.4);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(59, 130, 246, 0.03));
  color: var(--text-primary);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.05);
}
.pipeline-step-arrow {
  color: var(--text-muted);
  font-weight: 700;
}
.step-num {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-cyan);
  color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
}
.step-icon {
  font-size: 0.9rem;
}

/* SVG sizing helpers because we are not using Tailwind */
.w-4 { width: 1rem !important; }
.h-4 { height: 1rem !important; }
.w-8 { width: 2rem !important; }
.h-8 { height: 2rem !important; }
.mr-2 { margin-right: 0.5rem !important; }
.mr-1 { margin-right: 0.25rem !important; }
.text-amber-500 { color: #f59e0b !important; }
.text-white { color: #ffffff !important; }