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

:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --secondary: #10B981;
  --dark: #111827;
  --gray-900: #1F2937;
  --gray-700: #374151;
  --gray-500: #6B7280;
  --gray-300: #D1D5DB;
  --gray-100: #F3F4F6;
  --white: #FFFFFF;
  --max-width: 1200px;
  --header-height: 70px;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--gray-900);
  background: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-100);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
}

.logo svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  font-weight: 500;
  color: var(--gray-700);
  transition: color 0.2s;
  padding: 0.5rem 0;
  position: relative;
}

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

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.2s;
}

.nav a:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

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

/* Main Content */
.main {
  padding-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764BA2 100%);
  color: var(--white);
  padding: 6rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto 2.5rem;
  opacity: 0.95;
}

/* CTA Button */
.cta-btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  background: var(--secondary);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 20px -5px rgba(0, 0, 0, 0.15);
  color: var(--white);
}

.cta-floating {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  border-radius: 50px;
  box-shadow: var(--shadow-lg);
  animation: pulse 2s infinite;
}

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

/* Sections */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--gray-100);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--dark);
}

.section-subtitle {
  text-align: center;
  color: var(--gray-500);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}

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

.feature-card {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.feature-card h3 svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.feature-card p {
  color: var(--gray-500);
}

/* How It Works */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

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

.step-number {
  width: 60px;
  height: 60px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
}

.step h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.step p {
  color: var(--gray-500);
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

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

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

.blog-card-content {
  padding: 1.5rem;
}

.blog-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.blog-card p {
  color: var(--gray-500);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.blog-card .read-more {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* FAQ Accordion */
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  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: 20px;
  height: 20px;
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-question[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.faq-answer.active {
  padding: 0 1.5rem 1.5rem;
  max-height: 1000px;
}

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

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--gray-700);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

/* Footer */
.footer {
  background: var(--dark);
  color: var(--gray-300);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer h4 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: 1.25rem;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.75rem;
}

.footer ul a {
  color: var(--gray-300);
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-700);
  color: var(--gray-500);
  font-size: 0.875rem;
}

/* Page Headers */
.page-header {
  background: linear-gradient(135deg, #667eea 0%, #764BA2 100%);
  color: var(--white);
  padding: 4rem 0;
  text-align: center;
  margin-bottom: 3rem;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
}

/* Content Sections */
.content-section {
  padding: 2rem 0;
}

.content-section p {
  margin-bottom: 1.5rem;
  font-size: 1.0625rem;
  line-height: 1.8;
}

.content-section h2 {
  font-size: 2rem;
  margin: 2.5rem 0 1.25rem;
  color: var(--dark);
}

.content-section h3 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: var(--gray-900);
}

.content-section ul {
  margin: 1rem 0 1.5rem 1.5rem;
}

.content-section li {
  margin-bottom: 0.5rem;
}

/* Blog Article */
.article-meta {
  color: var(--gray-500);
  font-size: 0.875rem;
  margin-bottom: 2rem;
  display: flex;
  gap: 1.5rem;
}

.article-content {
  font-size: 1.0625rem;
  line-height: 1.85;
}

.article-content p {
  margin-bottom: 1.5rem;
}

.article-content h2 {
  font-size: 1.75rem;
  margin: 2.5rem 0 1rem;
}

.article-content h3 {
  font-size: 1.375rem;
  margin: 2rem 0 1rem;
}

.article-content ul {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-weight: 500;
}

/* Mobile Menu */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--white);
  padding: 1rem;
  box-shadow: var(--shadow-lg);
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  padding: 1rem;
  border-radius: var(--radius);
  transition: background 0.2s;
}

.mobile-nav a:hover {
  background: var(--gray-100);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.25rem;
  }

  .hero p {
    font-size: 1.125rem;
  }

  .nav {
    display: none;
  }

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

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

  .cta-floating {
    bottom: 1rem;
    right: 1rem;
    padding: 0.875rem 1.25rem;
    font-size: 0.9375rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.875rem;
  }

  .container {
    padding: 0 1rem;
  }

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

/* Utility classes for layout */
.text-center { text-align: center; }
.my-3 { margin: 3rem 0; }
.mt-3 { margin-top: 3rem; }
.mt-4 { margin-top: 4rem; }
.mt-2 { margin-top: 2rem; }
.mt-15 { margin-top: 1.5rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.text-gray-300 { color: var(--gray-300); }
.text-gray-500 { color: var(--gray-500); }
.text-muted { color: var(--gray-500); }
.fs-sm { font-size: 0.9375rem; }
.fs-xl { font-size: 1.5rem; }
.leading-relaxed { line-height: 1.7; }
.w-full { width: 100%; }
.d-inline-flex { display: inline-flex; }
.align-center { align-items: center; }
.gap-05 { gap: 0.5rem; }
.list-none { list-style: none; }
.border-top-gray { border-top: 1px solid var(--gray-300); }
.pt-2 { padding-top: 2rem; }
.max-w-700 { max-width: 700px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.text-gold { color: #FBBF24; }
.lead { font-size: 1.25rem; line-height: 1.7; color: var(--gray-700); }