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

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #e2e8f0;
  --success: #10b981;
  --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);
  --radius: 12px;
  --radius-sm: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: underline;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.logo img {
  width: 40px;
  height: 40px;
}

.logo span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  padding: 100px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text);
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 40px;
  font-size: 1.125rem;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
  text-decoration: none;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: white;
}

.cta-floating {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 14px 28px;
  font-size: 1rem;
  z-index: 1000;
  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: 80px 0;
}

section:nth-child(even) {
  background: var(--bg-alt);
}

.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(300px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon img {
  width: 28px;
  height: 28px;
  filter: brightness(0) invert(1);
}

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

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

/* How It Works */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-top: 60px;
}

.step {
  text-align: center;
}

.step-number {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.step h3 {
  margin-bottom: 12px;
}

.step p {
  color: var(--text-light);
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-top: 60px;
}

.blog-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

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

.blog-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  line-height: 1.4;
}

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

.blog-card .read-more {
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border);
  max-width: 800px;
  margin: 0 auto;
}

.faq-question {
  width: 100%;
  padding: 24px 0;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  text-align: left;
}

.faq-question img {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

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

.faq-answer p {
  padding-bottom: 24px;
  color: var(--text-light);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: border-color 0.2s;
}

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

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

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

/* Footer */
footer {
  background: var(--text);
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-size: 1.125rem;
  margin-bottom: 20px;
}

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

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

.footer-section a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #334155;
  color: #94a3b8;
  font-size: 0.875rem;
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  padding: 80px 0;
  text-align: center;
}

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

.page-header p {
  color: var(--text-light);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Blog Article */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

.article-content h2 {
  font-size: 2rem;
  margin: 48px 0 24px;
}

.article-content h3 {
  font-size: 1.5rem;
  margin: 40px 0 20px;
}

.article-content p {
  margin-bottom: 24px;
  color: var(--text-light);
}

.article-content ul,
.article-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
  color: var(--text-light);
}

.article-content li {
  margin-bottom: 12px;
}

.article-content a {
  color: var(--primary);
}

.article-meta {
  color: var(--text-light);
  font-size: 0.875rem;
  margin-bottom: 32px;
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  color: var(--primary);
  font-weight: 500;
}

/* Mobile */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  nav.open {
    display: flex;
  }

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

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

/* Utility */
.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;
}



/* Background sections */
.bg-alt {
  background: var(--bg-alt);
}

.bg-gradient-light {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.section-padding-lg {
  padding: 80px 0;
}

/* Text alignment */
.text-center {
  text-align: center;
}

.centered-column {
  max-width: 600px;
  margin: 0 auto;
}

/* Footer note */
.footer-note {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: 48px;
}

.text-light-mt {
  color: var(--text-light);
  margin-top: 16px;
}

/* Margin utilities */
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 32px; }
.mt-4 { margin-top: 48px; }
.mt-5 { margin-top: 60px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 32px; }
.mb-4 { margin-bottom: 48px; }

/* Inline style replacements */
.cta-container {
  text-align: center;
  margin: 32px 0;
}

.related-section {
  background: var(--bg-alt);
  padding: 24px;
  border-radius: var(--radius);
  margin-top: 48px;
}

.related-section h3 {
  margin-top: 0;
}

.related-section ul {
  margin-bottom: 0;
}

.footer-text {
  color: #94a3b8;
  line-height: 1.7;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  color: var(--primary);
  font-weight: 500;
}