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

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #8b5cf6;
  --accent: #ec4899;
  --dark: #1e1b4b;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6b7280;
  --gray-300: #d1d5db;
  --gray-100: #f3f4f6;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --shadow: 0 10px 40px rgba(99, 102, 241, 0.15);
  --radius: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--gray-900);
  background: var(--white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

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

/* Centered CTA sections */
.centered-cta {
  text-align: center;
  padding: 60px 20px;
}

.centered-cta--small {
  text-align: center;
  padding: 40px 20px;
}

/* Header */
header {
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  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(--dark);
  font-size: 1.5rem;
  font-weight: 700;
}

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

nav {
  display: flex;
  gap: 32px;
}

nav a {
  text-decoration: none;
  color: var(--gray-700);
  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;
}

.mobile-menu-btn svg {
  width: 28px;
  height: 28px;
  color: var(--gray-700);
}

/* Hero Section */
.hero {
  background: var(--gradient);
  color: var(--white);
  padding: 100px 0 120px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.1;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.95;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* CTA Buttons */
.cta-btn {
  display: inline-block;
  padding: 16px 40px;
  background: var(--white);
  color: var(--primary);
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  background: var(--gray-100);
}

.cta-floating {
  position: fixed;
  bottom: 30px;
  right: 30px;
  padding: 18px 35px;
  background: var(--gradient);
  color: var(--white);
  border-radius: 50px;
  font-weight: 700;
  box-shadow: var(--shadow);
  z-index: 9999;
  animation: pulse 2s infinite;
}

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

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

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: var(--dark);
}

.section-subtitle {
  text-align: center;
  color: var(--gray-700);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 60px;
}

/* Features Grid */
.features {
  background: var(--gray-100);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.feature-card {
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-icon svg {
  width: 32px;
  height: 32px;
  color: var(--white);
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--dark);
}

.feature-card p {
  color: var(--gray-700);
  line-height: 1.7;
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  margin-top: 60px;
}

.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s;
}

.blog-card:hover {
  transform: translateY(-5px);
}

.blog-image {
  height: 220px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-image svg {
  width: 80px;
  height: 80px;
  color: var(--white);
  opacity: 0.8;
}

.blog-content {
  padding: 30px;
}

.blog-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--dark);
}

.blog-card p {
  color: var(--gray-700);
  margin-bottom: 20px;
  line-height: 1.7;
}

.read-more {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.read-more svg {
  width: 20px;
  height: 20px;
  transition: transform 0.2s;
}

.read-more:hover svg {
  transform: translateX(4px);
}

/* Page Header */
.page-header {
  background: var(--gradient);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
  margin-bottom: 60px;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 1.2rem;
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto;
}

/* Content Sections */
.content-section {
  max-width: 800px;
  margin: 0 auto 60px;
  padding: 0 20px;
}

.content-section h2 {
  font-size: 1.75rem;
  margin-bottom: 20px;
  color: var(--dark);
}

.content-section p {
  color: var(--gray-700);
  margin-bottom: 20px;
  line-height: 1.8;
}

.content-section ul {
  margin: 20px 0;
  padding-left: 24px;
}

.content-section li {
  margin-bottom: 12px;
  color: var(--gray-700);
  line-height: 1.7;
}

/* Article meta */
.article-meta {
  color: var(--gray-700);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

/* FAQ */
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
  width: 100%;
  padding: 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--gray-100);
}

.faq-question svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
  transition: transform 0.3s;
}

.faq-question.active svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer.active {
  padding: 0 24px 24px;
  max-height: 500px;
}

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

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.2s;
  font-family: inherit;
}

.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(--dark);
  color: var(--white);
  padding: 60px 0 30px;
  margin-top: 80px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
}

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

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

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--white);
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  z-index: 998;
}

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

.mobile-menu a {
  display: block;
  padding: 12px 20px;
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--gray-100);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

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

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

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .cta-floating {
    bottom: 20px;
    right: 20px;
    padding: 15px 28px;
    font-size: 1rem;
  }

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

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

/* Focus states */
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}