* { margin: 0; padding: 0; box-sizing: border-box; }

body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif; line-height: 1.6; color: #333; background: #ffffff; min-height: 100vh; }

/* Navigation Styles */
.navbar { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(0, 0, 0, 0.1); position: sticky; top: 0; z-index: 1000; padding: 1rem 0; }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; display: flex; justify-content: space-between; align-items: center; }
@media (min-width: 640px) { .nav-container { padding: 0 2rem; } }
.logo { font-size: 1.5rem; font-weight: 700; color: #2563eb; text-decoration: none; }
.nav-menu { display: flex; list-style: none; gap: 2rem; }
.nav-menu a { text-decoration: none; color: #374151; font-weight: 500; transition: color 0.3s ease; }
.nav-menu a:hover, .nav-menu a.active { color: #2563eb; }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: #374151; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 2rem; }
.hero-section { text-align: center; padding: 4rem 0; background: white; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); margin-bottom: 3rem; }
.hero-section h1 { font-size: 2.5rem; font-weight: 700; color: #1f2937; margin-bottom: 1rem; }
.hero-section p { font-size: 1.1rem; color: #6b7280; max-width: 700px; margin: 0 auto; }

/* Features grid */
.features-grid { display: grid; gap: 2rem; margin-bottom: 3rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .features-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .features-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.feature-card { background: white; padding: 2rem; border-radius: 16px; box-shadow: 0 6px 20px rgba(0,0,0,0.08); transition: transform 0.2s ease, box-shadow 0.2s ease; text-align: center; }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(0,0,0,0.12); }
.feature-icon { font-size: 2rem; display: inline-block; margin-bottom: 0.75rem; }
.feature-card h2 { font-size: 1.4rem; font-weight: 600; color: #1f2937; margin-bottom: 0.5rem; }
.feature-card p { color: #6b7280; }

/* Formats section */
.formats-section { background: white; padding: 3rem; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); margin: 2rem 0; }
.formats-section h2 { text-align: center; font-size: 2rem; font-weight: 700; color: #1f2937; margin-bottom: 1.5rem; }
.format-categories { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.format-category { background: #f8fafc; padding: 1.5rem; border-radius: 16px; }
.format-category h3 { font-size: 1.2rem; font-weight: 600; color: #1f2937; margin-bottom: 0.75rem; }
.format-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.format-tag { display: inline-block; padding: 0.35rem 0.6rem; background: #eef2ff; color: #374151; border-radius: 9999px; font-size: 0.85rem; }

/* CTA */
.cta-section { text-align: center; padding: 3rem 0; }
.cta-section h2 { font-size: 1.8rem; font-weight: 700; color: #1f2937; margin-bottom: 0.75rem; }
.cta-section p { color: #6b7280; margin-bottom: 1rem; }
.cta-button { display: inline-block; background: #2563eb; color: white; padding: 0.75rem 1.25rem; border-radius: 0.75rem; text-decoration: none; transition: background 0.2s ease; }
.cta-button:hover { background: #1d4ed8; }

/* Footer */
.footer { background: #1f2937; color: white; padding: 3rem 0 2rem; margin-top: 3rem; }
.footer-content { max-width: 1200px; margin: 0 auto; padding: 0 2rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.footer-section h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 1rem; color: #f9fafb; }
.footer-section p, .footer-section a { color: #d1d5db; text-decoration: none; line-height: 1.6; }
.footer-section a:hover { color: #60a5fa; }
.footer-bottom { text-align: center; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid #374151; color: #9ca3af; }

/* Responsive */
@media (max-width: 768px) {
  .nav-menu { position: fixed; left: -100%; top: 70px; flex-direction: column; background-color: white; width: 100%; text-align: center; transition: 0.3s; box-shadow: 0 10px 27px rgba(0,0,0,0.05); padding: 2rem 0; }
  .nav-menu.active { left: 0; }
  .mobile-menu-btn { display: block; }
  .hero-section { padding: 2rem 1rem; }
  .hero-section h1 { font-size: 2rem; }
  .container { padding: 1rem; }
}