styles.css

@tailwind base;
@tailwind components;
@tailwind utilities;

/* ==========================================================================
   TABLE OF CONTENTS
   ==========================================================================
   1.  CSS Variables (Dark + Light themes)
   2.  Base / Reset
   3.  Layout & Containers
   4.  Header & Navigation
   5.  Logo
   6.  Theme Toggle
   7.  Hero Section & Background
   8.  Buttons
   9.  Cards & Upload
   10. Feature Cards
   11. Analysis Results & Status
   12. Comparison Section
   13. Pros & Cons / Recommendation
   14. Footer
   15. Loading Animations
   16. Mobile Navigation
   17. Utility Classes
   18. Enhanced Navigation
   19. Hero Animations & Floating Elements
   20. Ad Styles
   21. Documentation / About Layout
   22. Donate Page
   23. Keyframe Animations
   24. Light Mode Overrides
   25. Analysis Progress Component
   26. Responsive / Media Queries
   ========================================================================== */

/* ==========================================================================
   1. CSS Variables
   ========================================================================== */
/* Dark theme (default) */
:root,
.dark {
  --brand-primary: #3b82f6;
  --brand-secondary: #1e40af;
  --brand-accent: #60a5fa;
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-hover: #222222;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-tertiary: #666666;
  --border-primary: #2a2a2a;
  --border-secondary: #333333;
  --status-success: #10b981;
  --status-success-bg: rgba(16, 185, 129, 0.15);
  --status-warning: #f59e0b;
  --status-error: #ef4444;
  --status-error-bg: rgba(239, 68, 68, 0.15);
  --status-info: #3b82f6;
  --shadow-color: rgba(0, 0, 0, 0.5);
  --glass-bg: rgba(26, 26, 26, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --upload-bg: rgba(26, 26, 26, 0.3);
  --upload-hover-bg: rgba(26, 26, 26, 0.5);
  --gradient-start: var(--text-primary);
  --gradient-end: var(--brand-accent);
}

/* Light theme */
.light {
  --brand-primary: #2563eb;
  --brand-secondary: #1d4ed8;
  --brand-accent: #3b82f6;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f1f3f5;
  --bg-hover: #e9ecef;
  --text-primary: #1a1a1a;
  --text-secondary: #495057;
  --text-tertiary: #868e96;
  --border-primary: #dee2e6;
  --border-secondary: #ced4da;
  --status-success: #059669;
  --status-success-bg: #d1fae5;
  --status-warning: #d97706;
  --status-error: #dc2626;
  --status-error-bg: #fee2e2;
  --status-info: #2563eb;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.08);
  --upload-bg: rgba(255, 255, 255, 0.6);
  --upload-hover-bg: rgba(248, 249, 250, 0.9);
  --gradient-start: var(--brand-primary);
  --gradient-end: var(--brand-accent);
}

/* Base styles using standard CSS */
* {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Global link styles */
a {
  color: var(--brand-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--brand-primary);
  text-decoration: underline;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

h3 {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--brand-accent);
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Component styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: 0.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  z-index: -1;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--brand-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary::before {
  background: rgba(255, 255, 255, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--brand-secondary);
  color: white;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
  text-decoration: none;
}

.btn-primary:hover:not(:disabled)::before {
  width: 300px;
  height: 300px;
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Card components */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 0.75rem;
  box-shadow: 0 8px 32px 0 var(--shadow-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px 0 rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.3);
}

/* Form elements */

/* Header styles */
.header {
  background-color: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-primary);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

/* Navigation */
.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  transition: color 0.2s ease;
  position: relative;
  overflow: hidden;
}

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

.nav-link.active {
  color: var(--brand-primary);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

/* Theme Toggle Styles */
.theme-toggle {
  position: relative;
  background: transparent;
  border: 1px solid var(--border-primary);
  border-radius: 2rem;
  padding: 0;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-left: auto;
  margin-right: 1rem;
}

.theme-toggle:hover {
  border-color: var(--brand-primary);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}

.theme-toggle-track {
  display: flex;
  align-items: center;
  position: relative;
  width: 60px;
  height: 32px;
  padding: 4px;
  border-radius: 2rem;
  background: var(--bg-tertiary);
  transition: background-color 0.3s ease;
}

.theme-toggle-icon {
  position: absolute;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.theme-toggle-sun {
  left: 8px;
  opacity: 0;
  transform: scale(0.8);
}

.theme-toggle-moon {
  right: 8px;
  opacity: 1;
  transform: scale(1);
}

.light .theme-toggle-sun {
  opacity: 1;
  transform: scale(1);
  color: #f59e0b;
}

.light .theme-toggle-moon {
  opacity: 0;
  transform: scale(0.8);
}

.theme-toggle-thumb {
  position: absolute;
  width: 24px;
  height: 24px;
  background: var(--brand-primary);
  border-radius: 50%;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease;
  transform: translateX(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.theme-toggle-thumb-light {
  transform: translateX(28px);
  background: #f59e0b;
}

/* Layout utilities */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Hero section */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(ellipse at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.light .hero {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero-title {
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--brand-primary) 50%, var(--brand-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: clamp(2.5rem, 6vw, 4rem);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 3rem;
  line-height: 1.625;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Upload area */
.upload-area {
  padding: 3rem 2rem;
  text-align: center;
  border: 2px dashed rgba(59, 130, 246, 0.3);
  background: var(--upload-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.upload-area::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: all 0.5s ease;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.upload-area > * {
  position: relative;
  z-index: 1;
}

.upload-area:hover {
  border-color: var(--brand-primary);
  background: var(--upload-hover-bg);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.2);
}

.upload-area:hover::before {
  width: 100%;
  height: 100%;
}

.upload-area.drag-over {
  border-color: var(--brand-primary);
  background: rgba(59, 130, 246, 0.1);
  transform: scale(1.02);
  box-shadow: 0 15px 40px rgba(59, 130, 246, 0.3);
}

.upload-area.drag-over .upload-icon {
  transform: translateY(-5px);
  color: var(--brand-primary);
}

/* File Preview Component */
.file-preview {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 0.75rem;
  margin-bottom: 0.75rem;
  transition: all 0.3s ease;
}

.file-preview:hover {
  background: var(--bg-hover);
  border-color: var(--border-secondary);
  opacity: 0.95;
}

.file-preview-icon {
  position: relative;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.file-preview-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.progress-ring {
  transform: rotate(-90deg);
}

.progress-ring-circle {
  transition: stroke-dashoffset 0.3s ease;
}

.file-preview-info {
  flex: 1;
  min-width: 0;
}

.file-preview-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 0.25rem 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-preview-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.file-preview-status {
  font-weight: 500;
}

.file-preview-remove {
  padding: 0.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

.file-preview-remove:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.1);
  color: var(--status-error);
}

.file-preview-remove:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Analysis results */

/* Status indicators */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

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

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

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

.status-info {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--status-info);
}

/* Comparison Table */
.comparison-table {
    overflow-x: auto;
    margin: 2rem 0;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 0.5rem;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-primary);
}

.comparison-table th {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--brand-primary);
    font-weight: 600;
}

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

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

/* Pros and Cons */
.pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 1.5rem 0;
}

.pros, .cons {
    background-color: var(--bg-secondary);
    border-radius: 0.5rem;
    padding: 1.5rem;
    border: 1px solid var(--border-primary);
}

.pros {
    border-left: 3px solid var(--status-success);
}

.cons {
    border-left: 3px solid var(--status-error);
}

.pros h4 {
    color: var(--status-success);
    margin-bottom: 1rem;
}

.cons h4 {
    color: var(--status-error);
    margin-bottom: 1rem;
}

.pros ul, .cons ul {
    list-style: none;
    padding: 0;
}

.pros li, .cons li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.pros li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--status-success);
}

.cons li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--status-error);
}

/* Recommendation Box */
.recommendation-box {
    background-color: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--brand-primary);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin: 2rem 0;
}

.recommendation-box h4 {
    color: var(--brand-primary);
    margin-bottom: 1rem;
}

.recommendation-box p {
    margin-bottom: 0.75rem;
}

.recommendation-box p:last-child {
    margin-bottom: 0;
}

/* Responsive Design for Tables */
@media (max-width: 768px) {
    .comparison-table {
        font-size: 0.875rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .pros-cons {
        grid-template-columns: 1fr;
    }
}

/* Footer */
/* Footer styles with CLS prevention */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
  margin-top: 6rem;
  display: flex;
  flex-direction: column;
}

.footer-content {
  padding: 3rem 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  flex: 1;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-section {
}

.footer-section h4,
.footer-heading {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

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

.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-tagline a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-tagline a:hover {
  color: var(--brand-primary);
}

.footer-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  color: var(--text-secondary);
  transition: color 0.2s ease;
  display: block;
  text-decoration: none;
  font-size: 0.875rem;
}

.footer-link:hover {
  color: var(--brand-primary);
}

.footer-bottom {
  padding: 2rem 0 1rem;
  border-top: 1px solid var(--border-primary);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* Loading animations */

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Mobile navigation */

/* Utility classes for common patterns */
.w-5 { width: 1.25rem; }
.h-5 { height: 1.25rem; }
.w-6 { width: 1.5rem; }
.h-6 { height: 1.5rem; }

/* ==========================================================================
   8. Buttons (Enhanced)
   ========================================================================== */
body.mobile-menu-open {
  overflow: hidden;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Enhanced Button System with Ripple Effects */

.btn-primary::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-primary:active::after {
  width: 300px;
  height: 300px;
}

.btn-secondary {
  background-color: transparent;
  color: var(--brand-primary);
  border: 2px solid var(--brand-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--brand-primary);
  color: white;
}

/* Action Button System */
.action-btn {
  width: 36px;
  height: 36px;
  background-color: transparent;
  border: 1px solid var(--border-secondary);
  color: var(--text-secondary);
  padding: 0;
}

.action-btn:hover:not(:disabled) {
  background-color: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.action-btn.copied {
  border-color: var(--status-success);
  color: var(--status-success);
  animation: copy-pop 0.5s ease-out;
}

/* Donate Button System */
.btn-donate {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-primary);
}

.btn-donate:hover, .btn-donate.active {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
  color: white;
}

/* Special Effect Buttons */
.glow-button {
  position: relative;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
  animation: buttonGlow 2s ease-in-out infinite;
}

.btn-sparkle {
  position: absolute;
  top: -10px;
  right: -10px;
  font-size: 1.5rem;
  animation: sparkle 3s ease-in-out infinite;
}

/* Enhanced Logo System */
.logo-icon {
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-primary);
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon img {
  transform: rotate(360deg);
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 600;
  background: linear-gradient(to right, var(--gradient-start), var(--brand-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-subtitle {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 400;
}

/* Navigation System */
.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: navSlideIn 0.8s ease-out;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1.5rem;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--brand-primary);
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--brand-primary);
  transition: width 0.3s ease;
}

.nav-link:hover::before {
  width: 100%;
}

.donate-link {
  background-color: var(--brand-primary);
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

.donate-link:hover {
  background-color: var(--brand-secondary);
  transform: translateY(-1px);
}

/* Cloudflare Turnstile Styles */
.turnstile-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.cf-turnstile {
  margin: 0 auto;
}

.turnstile-loading {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-align: center;
}

/* Mobile Navigation System */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 4px;
  z-index: 1001;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.hamburger-line.open:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.hamburger-line.open:nth-child(2) {
  opacity: 0;
}

.hamburger-line.open:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--bg-primary);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  overflow-y: auto;
}

.mobile-nav.open {
  display: block;
  opacity: 1;
  visibility: visible;
}

.mobile-nav-content {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 6rem 1rem 2rem;
  height: 100vh;
  gap: 0;
  overflow-y: auto;
}

.mobile-nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  padding: 1rem;
  border-bottom: 1px solid var(--border-primary);
  transition: all 0.2s ease;
  text-align: left;
  display: block;
  width: 100%;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--brand-primary);
  background-color: var(--bg-secondary);
}

.mobile-nav-link.donate-link {
  background-color: var(--brand-primary);
  color: white !important;
  border-bottom: none;
  margin-top: 1rem;
  border-radius: 0.5rem;
}

.mobile-nav-link.donate-link:hover {
  background-color: var(--brand-secondary);
}

/* Enhanced Hero Section - OVERRIDE styles in lower section */
.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  justify-content: center;
}

/* Additional CSS classes for enhanced functionality */
.fade-in {
  animation: fadeIn 0.5s ease-out backwards;
}


.feature-icon .icon-pulse {
  animation: icon-pulse 2.5s infinite ease-in-out 1s;
}

.hero-nav {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 4rem;
  flex-wrap: wrap;
}

.hero-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  padding: 1rem;
  border-radius: 0.5rem;
}

.hero-nav-item:hover {
  color: var(--brand-primary);
  transform: translateY(-5px);
}

.hero-nav-icon {
  width: 3rem;
  height: 3rem;
  transition: transform 0.3s ease;
}

.hero-nav-item:hover .hero-nav-icon {
  transform: scale(1.1);
}

/* Hero Background Animation */
.hero-background {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-animation-canvas {
  z-index: 2;
  opacity: 0.8;
  mix-blend-mode: screen;
}

.hero-grid {
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background-image:
    linear-gradient(to right, rgba(59, 130, 246, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(59, 130, 246, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: move-grid 20s linear infinite;
}

/* Advanced Hero Effects */
.animated-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
  z-index: 0;
}

.animated-bg-layer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}

/* Consolidated Floating Elements Animation */
.floating-elements {
  position: relative;
  width: 100%;
  height: 100%;
}

.floating-element {
  position: absolute;
  font-family: ui-monospace, 'SF Mono', Monaco, 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 0.875rem;
  white-space: nowrap;
  animation: floatDrift 20s ease-in-out infinite;
  pointer-events: none;
  user-select: none;
}

/* Different styles for element types */
.floating-element.hex {
  color: var(--brand-primary);
  opacity: 0.2;
  font-size: 0.875rem;
  font-weight: 600;
  text-shadow: 0 0 10px currentColor;
}

.floating-element.binary {
  color: rgba(96, 165, 250, 0.8);
  opacity: 0.15;
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-shadow: 0 0 8px currentColor;
  filter: blur(0.5px);
}

.floating-element.text {
  color: var(--brand-accent);
  opacity: 0.18;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Animation variations for depth */
.floating-element:nth-child(odd) {
  animation-direction: alternate-reverse;
}

.floating-element:nth-child(3n) {
  animation-name: floatDriftDeep;
  opacity: 0.1;
  filter: blur(1px);
}

.floating-element:nth-child(5n) {
  animation-duration: 30s;
}

/* Hover interaction */
.hero:hover .floating-element {
  animation-duration: 15s;
}

@keyframes floatDrift {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 0.15;
  }
  25% {
    transform: translate(-20px, -30px) scale(1.05);
  }
  50% {
    transform: translate(30px, -20px) scale(0.95);
    opacity: 0.2;
  }
  75% {
    transform: translate(-10px, 20px) scale(1.02);
  }
  90% {
    opacity: 0.1;
  }
}

@keyframes floatDriftDeep {
  0%, 100% {
    transform: translate(0, 0) scale(0.9);
    opacity: 0;
  }
  10% {
    opacity: 0.08;
  }
  50% {
    transform: translate(-40px, 30px) scale(0.85);
    opacity: 0.12;
  }
  90% {
    opacity: 0.05;
  }
}

.circuit-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0.3;
}

.glitch-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0;
  animation: glitch 10s ease-in-out infinite;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(59, 130, 246, 0.1) 30%,
    rgba(59, 130, 246, 0.1) 70%,
    transparent 70%
  );
  background-size: 10px 10px;
}

/* ==========================================================================
   10. Feature Cards
   ========================================================================== */
.feature-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: featureSlideUp 0.8s ease-out backwards;
  background: rgba(26, 26, 26, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at top left, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.feature-card:hover {
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 15px 40px rgba(59, 130, 246, 0.25);
  transform: translateY(-8px) scale(1.02);
  background: rgba(26, 26, 26, 0.6);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }

.feature-icon {
  width: 5rem;
  height: 5rem;
  margin-bottom: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.feature-card:hover .feature-icon .icon-bg-glow {
  transform: scale(1.1);
  filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.7));
}

.feature-icon .icon-bg-glow {
  transition: all 0.3s ease;
}

.feature-title {
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Enhanced Upload Area */
.upload-area.drag-over {
  border-color: var(--brand-accent);
  background-color: rgba(59, 130, 246, 0.1);
  transform: scale(1.02);
}

.upload-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1rem;
  color: var(--text-tertiary);
}

.upload-text {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.upload-hint {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* Analysis Results System */
.analysis-result {
  padding: 0;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.result-filename {
  font-weight: 500;
  font-family: ui-monospace, 'SF Mono', Monaco, 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
  color: var(--text-primary);
}

/* Status System */
.result-status {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-pending {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--status-warning);
}

.status-analyzing {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--status-info);
}

.status-completed {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--status-success);
}

.status-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--status-error);
}

/* Expandable Content */
.expandable-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease-in-out;
}

.expandable-content.expanded {
  grid-template-rows: 1fr;
}

.expandable-content > .content-inner {
  overflow: hidden;
}

/* Code Block */
.code-block {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: 0.5rem;
  padding: 1rem;
  font-family: ui-monospace, 'SF Mono', Monaco, 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 0.875rem;
  overflow-x: auto;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* Report Actions */
.report-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-primary);
}

/* Comparison Section */
.comparison-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.comparison-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  animation: pulse 20s ease-in-out infinite;
}

.comparison-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.section-subtitle {
  text-align: center;
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.comparison-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.comparison-image-container {
  position: relative;
  width: 100%;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-primary);
  aspect-ratio: 1656 / 428;
}

.comparison-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0.5rem 0.5rem 0 0;
}

.comparison-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 2rem;
}

.comparison-column {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 0.5rem;
  border: 1px solid var(--border-primary);
}

.comparison-column h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.comparison-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.comparison-column li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-secondary);
  line-height: 1.6;
}

.comparison-column li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--brand-primary);
}

.comparison-column:first-child li::before {
  content: '✓';
  color: var(--status-success);
}

.comparison-column:last-child li::before {
  content: '×';
  color: var(--status-error);
}

.comparison-caption {
  padding: 2rem;
  background: rgba(59, 130, 246, 0.05);
  border-top: 1px solid var(--border-primary);
  text-align: center;
}

.comparison-caption p {
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

.comparison-caption strong {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .comparison-features {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .comparison-section h2 {
    font-size: 2rem;
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
}

/* Loading System */
.loader {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-secondary);
  border-top-color: var(--brand-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.status-analyzing .loader {
  animation: spin 0.8s linear infinite, pulse-loader 1.5s infinite ease-in-out;
}

/* Enhanced Grid Layouts */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.info-section {
  padding: 4rem 0;
}

.info-card {
  padding: 2rem;
  background: var(--bg-secondary);
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
}

.cta-section {
  padding: 4rem 0;
  text-align: center;
}

.cta-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.donate-cards, .error-codes, .command-list {
  display: grid;
  gap: 1.5rem;
}

.donate-cards {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
  width: 100%;
  padding-top: 1rem;
}

/* Donate Page Components */
.donate-card {
  padding: 2rem;
  text-align: center;
  position: relative;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  transition: all 0.2s ease;
  overflow: visible;
  width: 100%;
  box-sizing: border-box;
  max-width: 100%;
}

.donate-card.featured {
  border-color: var(--brand-primary);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}

.featured-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--brand-primary);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  z-index: 10;
}

.donate-amounts {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin: 1rem 0;
  flex-wrap: wrap;
}

/* Donate page specific styling */
.donate-page {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

.donate-options {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

/* PayPal button container */
.donate-card form {
  width: 100%;
  margin-top: 1rem;
}

.donate-card .btn-primary,
.donate-card .btn-large {
  width: 100%;
  max-width: 100%;
  word-wrap: break-word;
  white-space: normal;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  line-height: 1.4;
  box-sizing: border-box;
}

/* Crypto addresses */
.crypto-address {
  word-break: break-all;
  font-size: 0.8rem;
  display: block;
  margin-top: 0.25rem;
  padding: 0.5rem;
  background-color: var(--bg-primary);
  border-radius: 0.25rem;
  font-family: ui-monospace, 'SF Mono', Monaco, 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
}

/* Documentation Error Codes */
.error-code {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: all 0.2s ease;
}

.error-code:hover {
  border-color: var(--brand-primary);
  box-shadow: 0 2px 10px rgba(59, 130, 246, 0.1);
}

.error-code h4 {
  color: var(--brand-primary);
  font-family: ui-monospace, 'SF Mono', Monaco, 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.error-code p {
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.error-code p:last-child {
  margin-bottom: 0;
}

.error-code strong {
  color: var(--text-primary);
}

/* Documentation Commands */
.command {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.command code {
  display: block;
  font-size: 1rem;
  color: var(--brand-primary);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.command p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   23. Keyframe Animations
   ========================================================================== */
@keyframes move-grid {
  0% { transform: translate(0, 0); }
  100% { transform: translate(40px, 40px); }
}

@keyframes copy-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

@keyframes navSlideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes featureSlideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes buttonGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.5); }
  50% { box-shadow: 0 0 40px rgba(59, 130, 246, 0.8); }
}

@keyframes sparkle {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.8; }
  50% { transform: scale(1.2) rotate(180deg); opacity: 1; }
}

@keyframes pulse-loader {
  0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(59, 130, 246, 0); }
  100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}

@keyframes glitch {
  0%, 90%, 100% { opacity: 0; }
  92% { opacity: 0.8; transform: translateX(-2px); }
  94% { opacity: 0.5; transform: translateX(2px); }
  96% { opacity: 0.8; transform: translateX(-1px); }
}

@keyframes icon-pulse {
  0%, 100% { opacity: 0.5; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1.05); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}


/* ==========================================================================
   20. Ad Styles
   ========================================================================== */
.ad-container {
  margin: 2rem 0;
  min-height: 100px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--bg-secondary);
  border-radius: 0.5rem;
  overflow: hidden;
  width: 100%;
}

/* Ensure AdSense ins element takes full space */
.ad-container ins.adsbygoogle {
  width: 100%;
  min-height: inherit;
}

.ad-container.ad-header {
  margin: 1rem 0 2rem 0;
  max-width: 728px;
  margin-left: auto;
  margin-right: auto;
}

.ad-container.ad-sidebar {
  margin: 1rem 0;
  max-width: 300px;
}

.ad-container.ad-inline {
  margin: 1.5rem 0;
}

.ad-container.ad-square {
  margin: 2rem auto;
  text-align: center;
}

.ad-container.ad-multiplex {
  margin: 2rem 0;
  min-height: 300px;
}

.ad-container.ad-footer {
  margin: 3rem auto 2rem;
  text-align: center;
}

/* Desktop-only vertical ad sidebar */
.desktop-only {
  display: none;
}

@media (min-width: 1600px) {
  .desktop-only {
    display: block;
  }
}

.sticky-ad {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--bg-primary);
  padding: 0.5rem;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
}

.sticky-ad .adsbygoogle {
  max-height: 100px;
}

/* Hide ads on very small screens for better UX */
@media (max-width: 320px) {
  .ad-container {
    display: none;
  }
}

/* Mobile only helper */
.mobile-only {
  display: none;
}

/* Responsive ad sizing and mobile utilities */
@media (max-width: 768px) {
  .ad-container.ad-header {
    max-width: 100%;
  }
  
  .sticky-ad {
    max-height: 90px;
  }
  
  .mobile-only {
    display: block;
  }
}

/* Page Content Wrapper */
.page-content {
  width: 100%;
  overflow-x: clip;
}

/* Documentation Layout - OPTIMIZATION: Extract to docs.css for better code splitting */
.docs-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  align-items: flex-start;
  margin-top: 2rem;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  position: relative;
}

.docs-nav {
  position: -webkit-sticky;
  position: sticky;
  top: 5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 1rem;
  padding: 1.5rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  z-index: 10;
  align-self: start;
  height: fit-content;
}

/* Custom scrollbar for docs navigation */
.docs-nav::-webkit-scrollbar {
  width: 6px;
}

.docs-nav::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

.docs-nav::-webkit-scrollbar-thumb {
  background: var(--border-primary);
  border-radius: 3px;
}

.docs-nav::-webkit-scrollbar-thumb:hover {
  background: var(--border-secondary);
}

.docs-nav h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--brand-primary);
}

.docs-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.docs-nav li {
  margin-bottom: 0.5rem;
}

.docs-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s ease, background-color 0.2s ease;
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  position: relative;
  cursor: pointer;
}

.docs-nav a:hover {
  color: var(--brand-primary);
  background-color: var(--bg-hover);
}

.docs-nav a.active {
  color: var(--brand-primary);
  background-color: rgba(59, 130, 246, 0.1);
}

.docs-nav a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 70%;
  background-color: var(--brand-primary);
  border-radius: 0 3px 3px 0;
}

.docs-content {
  max-width: 800px;
  width: 100%;
  overflow-x: hidden;
}

.docs-section,
.about-section {
  margin-bottom: 3rem;
  scroll-margin-top: 6rem;
}

.docs-section h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--brand-primary);
  border-bottom: 2px solid var(--border-primary);
  padding-bottom: 0.5rem;
}

.docs-section h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 2rem 0 1rem;
  color: var(--text-primary);
}

.docs-section h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-primary);
}

.docs-section p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.docs-section ul, .docs-section ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.docs-section li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.docs-section strong {
  color: var(--text-primary);
  font-weight: 600;
}

.docs-section code {
  background-color: var(--bg-secondary);
  color: var(--brand-accent);
  padding: 0.2rem 0.4rem;
  border-radius: 0.25rem;
  font-family: ui-monospace, 'SF Mono', Monaco, 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 0.875rem;
}

.step-list {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
}

.step-list li {
  counter-increment: step-counter;
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.5rem;
}

.step-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background-color: var(--brand-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.875rem;
}

.alert {
  padding: 1rem;
  border-radius: 0.5rem;
  margin: 1rem 0;
  border-left: 4px solid;
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  border-left-color: var(--brand-primary);
  color: var(--text-primary);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border-left-color: var(--status-warning);
  color: var(--text-primary);
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border-left-color: var(--status-success);
  color: var(--text-primary);
}

.faq-item {
  margin-bottom: 2rem;
}

.faq-item h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

@media (max-width: 1024px) {
  .docs-layout {
    grid-template-columns: 200px 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .docs-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 0;
  }
  
  .docs-nav {
    position: static;
    margin-bottom: 2rem;
    margin-left: 0;
    margin-right: 0;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  
  .docs-content {
    padding: 0 1rem;
  }
}

/* ==========================================================================
   26. Responsive / Media Queries
   ========================================================================== */
@media (max-width: 480px) {
  .container { 
    padding: 0 0.75rem;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .header-content { height: 4rem; gap: 0.5rem; padding: 0 0.5rem; }
  .logo { gap: 0.5rem; flex-shrink: 1; min-width: 0; }
  .logo-icon { width: 1.75rem; height: 1.75rem; flex-shrink: 0; }
  .logo-text { font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .logo-subtitle { display: none; }
  .desktop-nav { display: none; }
  .mobile-menu-toggle { display: flex; }
  .mobile-nav { display: block; }
  .hero { padding: 2rem 0; min-height: 70vh; }
  .hero-title { font-size: clamp(1.75rem, 8vw, 2.5rem); line-height: 1.1; }
  .hero-subtitle { font-size: 0.9rem; margin-bottom: 2rem; }
  .hero-actions { flex-direction: column; gap: 0.75rem; }
  .btn-large { padding: 0.875rem 1.5rem; font-size: 0.9rem; width: 100%; }
  .upload-area { padding: 1.5rem 1rem; margin: 1rem 0; }
  .upload-icon { width: 3rem; height: 3rem; }
  .upload-text { font-size: 1rem; }
  .upload-hint { font-size: 0.8rem; }
  .features-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .feature-card { padding: 1.5rem; }
  .feature-icon { width: 4rem; height: 4rem; }
  .info-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-content { grid-template-columns: 1fr; text-align: center; gap: 1.5rem; }
  .footer-links { justify-content: center; gap: 1.5rem; }
  .donate-cards { 
    grid-template-columns: 1fr; 
    gap: 1.5rem;
    width: 100%;
    max-width: 100%;
  }
  .donate-amounts { flex-wrap: wrap; gap: 0.375rem; }
  .btn-donate { padding: 0.375rem 0.75rem; font-size: 0.8rem; }
  
  /* Mobile donate card adjustments */
  .donate-card {
    padding: 1.5rem 1rem;
    width: 100%;
    max-width: 100%;
    margin: 0;
  }
  
  /* Mobile performance optimizations - disable heavy animations */
  .hero-grid,
  .hero-background,
  .glitch-overlay,
  .floating-elements,
  .animated-bg-layer {
    display: none !important;
  }

  .floating-element {
    display: none;
  }
  
  /* Disable backdrop filters on mobile for performance */
  .header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background-color: rgba(10, 10, 10, 0.95);
  }
  
  /* Reduce only heavy animation complexity - preserve essential UI animations */
  .btn,
  .nav-link,
  .feature-card,
  .upload-area {
    transition-duration: 0.2s;
  }
  
  /* Mobile featured badge adjustments */
  .featured-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.75rem;
    top: -0.6rem;
  }
  
  .donate-card .btn-primary,
  .donate-card .btn-large {
    font-size: 0.8rem;
    padding: 0.625rem 0.75rem;
    min-height: 44px;
  }
  
  /* Crypto addresses on mobile */
  .crypto-address {
    word-break: break-all;
    font-size: 0.7rem;
    padding: 0.375rem;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .container { 
    padding: 0 1rem;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .desktop-nav { display: none; }
  .mobile-menu-toggle { display: flex; }
  .mobile-nav { display: block; }
  .hero { padding: 2.5rem 0; min-height: 75vh; }
  .hero-actions { flex-direction: column; gap: 1rem; }
  .btn-large { width: auto; min-width: 200px; }
  .upload-area { padding: 2rem 1.5rem; }
  .features-grid { grid-template-columns: 1fr; gap: 2rem; }
  .info-grid { grid-template-columns: 1fr; gap: 2rem; }
  
  /* Reduce animation complexity on tablets */
  .floating-element {
    opacity: 0.1 !important;
    animation-duration: 30s !important;
  }
  
  .floating-element.binary {
    display: none;
  }
  
  .floating-element:nth-child(n+7) {
    display: none;
  }
  .donate-cards { 
    grid-template-columns: 1fr; 
    gap: 2rem;
    width: 100%;
    max-width: 100%;
  }
  .footer-content { grid-template-columns: 1fr 1fr; text-align: left; gap: 2rem; }
}

@media (min-width: 769px) {
  .desktop-nav { display: flex; gap: 1.5rem; }
  .mobile-menu-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* Spacing utilities */
.mt-2 { margin-top: 2rem; }
.text-center { text-align: center; }

/* ==========================================================================
   24. Light Mode Overrides
   ========================================================================== */
.light .btn-primary {
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.light .btn-primary:hover:not(:disabled) {
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.25);
}

.light .card {
  box-shadow: 0 4px 20px 0 rgba(0, 0, 0, 0.05);
}

.light .card:hover {
  box-shadow: 0 8px 30px 0 rgba(37, 99, 235, 0.1);
}

.light .upload-area {
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.light .upload-area:hover {
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.light .upload-area.drag-over {
  background: rgba(37, 99, 235, 0.05);
  box-shadow: 0 15px 40px rgba(37, 99, 235, 0.2);
}

.light .file-preview {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.light .file-preview:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Feature cards in light mode - better contrast */
.light .feature-card {
  background: var(--bg-primary);
  border: 1px solid rgba(37, 99, 235, 0.15);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.light .feature-card:hover {
  border-color: var(--brand-primary);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.15);
  background: var(--bg-primary);
}

.light .feature-title {
  color: var(--text-primary);
  font-weight: 700;
}

.light .feature-description {
  color: #4a5568;
  font-weight: 400;
}

.light .feature-icon {
  color: var(--brand-primary);
}

/* Header adjustments for light mode */
.light .header {
  background-color: rgba(255, 255, 255, 0.95);
  border-bottom-color: var(--border-primary);
}

/* Hero section improvements for light mode */
.light .hero {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 50%, #e2e8f0 100%);
}

.light .hero-title {
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 50%, var(--brand-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: brightness(0.9);
}

.light .hero-subtitle {
  color: #2d3748;
  font-weight: 500;
}

.light h3 {
  color: var(--brand-primary);
}

.light p {
  color: #4a5568;
}

/* Upload area text in light mode */
.light .upload-text {
  color: var(--text-primary);
  font-weight: 600;
}

.light .upload-hint {
  color: #718096;
}

.light .upload-icon {
  color: var(--brand-primary);
  opacity: 0.8;
}

/* Footer adjustments for light mode */
.light .footer {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* Analysis results adjustments for light mode */
.light .analysis-card {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
}

.light .code-block {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Light mode scrollbar */
.light ::-webkit-scrollbar {
  background-color: var(--bg-secondary);
}

.light ::-webkit-scrollbar-thumb {
  background-color: var(--border-secondary);
}

.light ::-webkit-scrollbar-thumb:hover {
  background-color: var(--border-primary);
}

/* Navigation improvements for light mode */
.light .nav-link {
  color: #4a5568;
  font-weight: 500;
}

.light .nav-link:hover {
  color: var(--brand-primary);
}

.light .nav-link.active {
  color: var(--brand-primary);
  font-weight: 600;
}

.light .logo-text {
  background: linear-gradient(to right, var(--brand-primary), var(--brand-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Section backgrounds in light mode */
.light .comparison-section {
  background: #f7fafc;
}

.light .features-section,
.light .info-section {
  background: var(--bg-primary);
}

/* Ensure theme toggle is always visible */
.theme-toggle {
  z-index: 100;
}

/* ============================================
   Analysis Progress Component Styles
   ============================================ */

.analysis-progress-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  min-height: 400px;
}

.analysis-progress-card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  max-width: 500px;
  width: 100%;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Animated background gradient */
.progress-bg-animation {
  position: absolute;
  top: -50%;
  left: -50%;
  right: -50%;
  bottom: -50%;
  background: conic-gradient(
    from 0deg,
    transparent,
    var(--brand-primary) 10%,
    transparent 20%
  );
  animation: rotate-bg 8s linear infinite;
  opacity: 0.1;
  z-index: 0;
}

@keyframes rotate-bg {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Icon with pulse animation */
.progress-icon-container {
  position: relative;
  display: inline-block;
  margin-bottom: 1.5rem;
  z-index: 1;
}

.progress-icon {
  font-size: 4rem;
  display: block;
  animation: bounce-icon 2s ease-in-out infinite;
}

@keyframes bounce-icon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.progress-icon-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--brand-primary);
  transform: translate(-50%, -50%);
  animation: pulse-ring 2s ease-out infinite;
  opacity: 0;
}

.progress-icon-pulse.delay-1 {
  animation-delay: 0.5s;
}

.progress-icon-pulse.delay-2 {
  animation-delay: 1s;
}

@keyframes pulse-ring {
  0% {
    transform: translate(-50%, -50%) scale(0.5);
    opacity: 0.5;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

/* Title and description */
.progress-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.progress-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

/* Progress stages indicator */
.progress-stages {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.progress-stage-item {
  display: flex;
  align-items: center;
}

.progress-stage-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.progress-stage-dot.completed {
  background: var(--status-success);
  border-color: var(--status-success);
}

.progress-stage-dot.active {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
  animation: stage-pulse 1.5s ease-in-out infinite;
  box-shadow: 0 0 20px var(--brand-primary);
}

@keyframes stage-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.progress-stage-line {
  width: 40px;
  height: 3px;
  background: var(--border-secondary);
  margin: 0 4px;
  transition: background 0.3s ease;
}

.progress-stage-line.completed {
  background: var(--status-success);
}

.progress-stage-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
  padding: 0 0.5rem;
  position: relative;
  z-index: 1;
}

/* Elapsed time */
.progress-time {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.time-icon {
  animation: tick 1s steps(1) infinite;
}

@keyframes tick {
  50% { opacity: 0.5; }
}

/* Progress bar */
.progress-bar-container {
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.progress-bar-track {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 30%;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
  border-radius: 3px;
  animation: progress-wave 2s ease-in-out infinite;
}

@keyframes progress-wave {
  0% { left: -30%; }
  100% { left: 100%; }
}

.progress-bar-shimmer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  animation: shimmer 2s linear infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Fun fact box */
.progress-fun-fact {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-tertiary);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  text-align: left;
  position: relative;
  z-index: 1;
  animation: fade-in-up 0.5s ease;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fun-fact-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.fun-fact-content {
  flex: 1;
}

.fun-fact-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.fun-fact-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  line-height: 1.5;
}

/* Floating particles */
.floating-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--brand-primary);
  border-radius: 50%;
  opacity: 0.3;
}

.particle-1 {
  top: 20%;
  left: 10%;
  animation: float-particle 6s ease-in-out infinite;
}

.particle-2 {
  top: 60%;
  left: 85%;
  animation: float-particle 8s ease-in-out infinite reverse;
  animation-delay: -2s;
}

.particle-3 {
  top: 80%;
  left: 20%;
  animation: float-particle 7s ease-in-out infinite;
  animation-delay: -4s;
}

.particle-4 {
  top: 30%;
  left: 90%;
  animation: float-particle 5s ease-in-out infinite reverse;
  animation-delay: -1s;
}

.particle-5 {
  top: 70%;
  left: 50%;
  animation: float-particle 9s ease-in-out infinite;
  animation-delay: -3s;
}

.particle-6 {
  top: 10%;
  left: 60%;
  animation: float-particle 6s ease-in-out infinite reverse;
  animation-delay: -5s;
}

@keyframes float-particle {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.3;
  }
  25% {
    transform: translate(20px, -30px) scale(1.2);
    opacity: 0.5;
  }
  50% {
    transform: translate(-10px, -50px) scale(0.8);
    opacity: 0.2;
  }
  75% {
    transform: translate(30px, -20px) scale(1.1);
    opacity: 0.4;
  }
}

/* Light theme adjustments */
.light .analysis-progress-card {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

.light .progress-bg-animation {
  opacity: 0.05;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .analysis-progress-card {
    padding: 2rem 1.5rem;
    border-radius: 16px;
  }

  .progress-icon {
    font-size: 3rem;
  }

  .progress-title {
    font-size: 1.25rem;
  }

  .progress-stage-line {
    width: 24px;
  }

  .progress-stage-dot {
    width: 24px;
    height: 24px;
    font-size: 0.65rem;
  }

  .progress-stage-labels {
    font-size: 0.6rem;
  }
}