/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #ffffff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e7eb;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: #1f2937;
}

.logo {
  font-size: 1.5rem;
}

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

.nav-link {
  text-decoration: none;
  color: #6b7280;
  font-weight: 500;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link:hover {
  color: #1f2937;
}

.github-link {
  background: #1f2937;
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.github-link:hover {
  background: #374151;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 20px;
  height: 2px;
  background: #1f2937;
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.title-accent {
  display: block;
  background: linear-gradient(45deg, #48d1cc, #40e0d0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn {
  padding: 0.75rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: #48d1cc;
  color: #1f2937;
}

.btn-primary:hover {
  background: #40e0d0;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(72, 209, 204, 0.3);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.version-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  opacity: 0.8;
}

.divider {
  opacity: 0.5;
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.captcha-mockup {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
  width: 300px;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

.mockup-header {
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mockup-dots {
  display: flex;
  gap: 0.5rem;
}

.mockup-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

.mockup-content {
  padding: 2rem;
  text-align: center;
}

.mockup-captcha {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.mockup-icon {
  font-size: 2rem;
  animation: pulse 2s infinite;
}

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

.mockup-text {
  font-weight: 500;
}

.mockup-progress {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: #48d1cc;
  border-radius: 2px;
  animation: progress 3s ease-in-out infinite;
}

@keyframes progress {
  0% {
    width: 0%;
  }
  50% {
    width: 70%;
  }
  100% {
    width: 100%;
  }
}

/* Sections */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: #1f2937;
}

.section-description {
  font-size: 1.125rem;
  text-align: center;
  color: #6b7280;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

section {
  padding: 5rem 0;
}

/* Features Section */
.features {
  background: #f8fafc;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  transition: all 0.3s ease;
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
  border-color: #48d1cc;
}

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

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #1f2937;
}

.feature-card p {
  color: #6b7280;
}

/* Demo Section */
.demo {
  background: white;
}

.demo-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.demo-stats {
  background: #f8fafc;
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}

.demo-stats h3 {
  margin-bottom: 1.5rem;
  color: #1f2937;
  font-size: 1.25rem;
}

.stats-grid {
  display: grid;
  gap: 1rem;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: white;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.stat-label {
  color: #6b7280;
  font-size: 0.875rem;
}

.stat-value {
  font-weight: 600;
  color: #1f2937;
}

.captcha-placeholder {
  background: #f8fafc;
  border: 2px dashed #d1d5db;
  border-radius: 12px;
  padding: 3rem 2rem;
  text-align: center;
  margin-bottom: 2rem;
}

.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.placeholder-icon {
  font-size: 3rem;
  opacity: 0.5;
}

.placeholder-content h3 {
  color: #1f2937;
  margin: 0;
}

.placeholder-content p {
  color: #6b7280;
  margin: 0;
}

.demo-results {
  background: #f8fafc;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}

.demo-results h4 {
  margin-bottom: 1rem;
  color: #1f2937;
}

.demo-log {
  max-height: 200px;
  overflow-y: auto;
  background: white;
  border-radius: 8px;
  padding: 1rem;
  border: 1px solid #e5e7eb;
}

.log-item {
  margin: 0.5rem 0;
  font-size: 0.875rem;
  color: #6b7280;
  padding: 0.5rem;
  border-left: 3px solid #48d1cc;
  background: #f0fdfc;
  border-radius: 4px;
}

/* Installation Section */
.installation {
  background: #f8fafc;
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 3rem;
}

.step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.step-number {
  width: 40px;
  height: 40px;
  background: #48d1cc;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  margin-bottom: 1rem;
  color: #1f2937;
}

.install-note {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: #dbeafe;
  border: 1px solid #93c5fd;
  border-radius: 8px;
  padding: 1rem;
}

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

.note-content {
  color: #1e40af;
}

/* API Documentation */
.api-docs {
  background: white;
}

.api-section {
  margin-bottom: 3rem;
}

.api-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #1f2937;
}

.api-table {
  overflow-x: auto;
  background: #f8fafc;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.api-table table {
  width: 100%;
  border-collapse: collapse;
}

.api-table th,
.api-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.api-table th {
  background: #f1f5f9;
  font-weight: 600;
  color: #1f2937;
}

.api-table td code {
  background: #e2e8f0;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.875rem;
}

/* Examples Section */
.examples {
  background: #f8fafc;
}

.example-card {
  background: white;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  margin-bottom: 2rem;
  overflow: hidden;
}

.example-card h3 {
  padding: 1.5rem 2rem;
  margin: 0;
  background: #f1f5f9;
  border-bottom: 1px solid #e5e7eb;
  color: #1f2937;
}

.example-card pre {
  margin: 0;
  padding: 2rem;
  background: #1e293b;
  overflow-x: auto;
}

/* Code Blocks */
pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1rem 0;
}

code {
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.875rem;
}

/* Footer */
.footer {
  background: #1f2937;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.footer-left p {
  color: #9ca3af;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  gap: 3rem;
}

.link-group h4 {
  margin-bottom: 1rem;
  color: white;
}

.link-group a {
  display: block;
  color: #9ca3af;
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: color 0.2s ease;
}

.link-group a:hover {
  color: #48d1cc;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #374151;
  text-align: center;
  color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .demo-container {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-direction: column;
    gap: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 200px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero {
    padding: 6rem 0 3rem;
  }

  .hero-title {
    font-size: 2rem;
  }

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

  .step {
    flex-direction: column;
    gap: 1rem;
  }
}

/* Smooth scrolling enhancements */
@media (prefers-reduced-motion: no-preference) {
  .feature-card,
  .btn,
  .nav-link {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
  }
}

/* Print styles */
@media print {
  .navbar,
  .hero,
  .demo,
  .footer {
    display: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.4;
  }

  .section-title {
    page-break-after: avoid;
  }
}