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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #7c3aed;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius: 12px;
  --radius-sm: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-white);
  overflow-x: hidden;
}

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

/* Header */
header {
  background: var(--bg-white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--primary);
  font-weight: 700;
  font-size: 1.5rem;
}

.logo svg {
  width: 40px;
  height: 40px;
  color: var(--primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.2s;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-dark);
}

.mobile-menu-btn svg {
  width: 28px;
  height: 28px;
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--bg-white);
  box-shadow: var(--shadow-lg);
  padding: 20px;
  z-index: 99;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 12px 0;
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}

/* Hero section */
.hero {
  background: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 100%);
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto 40px;
}

/* Sections */
section {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-light);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto 60px;
}

/* Features grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  margin-top: 60px;
}

.feature-card {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card svg {
  width: 48px;
  height: 48px;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  font-weight: 600;
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.7;
}

/* CTA Buttons */
.cta-btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  box-shadow: var(--shadow);
}

.cta-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.cta-btn:active {
  transform: translateY(0);
}

.cta-floating {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 16px 32px;
  font-size: 1.125rem;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Content sections */
.content-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.content-section p {
  margin-bottom: 20px;
  font-size: 1.0625rem;
  line-height: 1.8;
}

.content-section h2 {
  font-size: 2rem;
  margin-bottom: 24px;
  margin-top: 40px;
  color: var(--text-dark);
}

.content-section h2:first-of-type {
  margin-top: 0;
}

/* Two column layout */
.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (max-width: 768px) {
  .two-column {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Blog grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.blog-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.blog-card-image {
  height: 200px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-card-image svg {
  width: 64px;
  height: 64px;
  color: white;
  opacity: 0.9;
}

.blog-card-content {
  padding: 24px;
}

.blog-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  font-weight: 600;
}

.blog-card p {
  color: var(--text-light);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.blog-card-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.blog-card-link:hover {
  text-decoration: underline;
}

/* Article */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.article-content p {
  margin-bottom: 20px;
  line-height: 1.8;
  font-size: 1.0625rem;
}

.article-content h2 {
  font-size: 1.75rem;
  margin: 40px 0 20px;
  color: var(--text-dark);
}

.article-content ul, .article-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  margin-bottom: 32px;
}

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

.faq-answer {
  display: none;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background: var(--text-dark);
  color: white;
  padding: 60px 0 32px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: #9ca3af;
  margin-top: 16px;
  line-height: 1.7;
}

.footer-links h4 {
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 32px;
  text-align: center;
  color: #9ca3af;
  font-size: 0.875rem;
}

.footer-bottom a {
  color: #9ca3af;
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

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

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

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.0625rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta-floating {
    bottom: 16px;
    right: 16px;
    padding: 14px 24px;
    font-size: 1rem;
  }
}

/* Utility classes */
.text-center { text-align: center; }
.mt-4 { margin-top: 32px; }
.mb-4 { margin-bottom: 32px; }

/* Additional utility classes to replace inline styles */
.footer-brand .logo {
  color: white;
}

.footer-brand .logo svg {
  width: 40px;
  height: 40px;
}

.section-separator {
  margin: 40px 0;
  border: none;
  border-top: 1px solid var(--border);
}

.cta-btn + .cta-btn {
  margin-left: 10px;
}

.hero-image {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  display: block;
}

.blog-intro {
  max-width: 700px;
  margin: 0 auto 40px;
  text-align: center;
}

.contact-form-section {
  margin-top: 80px;
}

.comparison-table {
  width: 100%;
  margin: 20px 0;
  border-collapse: collapse;
}

.comparison-table th {
  background: var(--bg-light);
  padding: 12px;
  text-align: left;
  font-weight: 600;
}

.comparison-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

/* FAQ styles */
.faq-item {
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
}

.faq-question[aria-expanded="true"]::after {
  content: '−';
}

.faq-answer {
  padding-top: 12px;
  color: var(--text-light);
  line-height: 1.7;
}

/* Contact form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

/* Blockquote */
blockquote {
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  margin: 24px 0;
  font-style: italic;
  color: var(--text-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}