* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: #1a202c; line-height: 1.6; background: #ffffff; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
header { border-bottom: 1px solid #e2e8f0; background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; }
header .container { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; }
.logo { font-size: 22px; font-weight: 700; color: #1a202c; text-decoration: none; }
.logo span { color: #3182ce; }
nav { display: flex; gap: 28px; }
nav a { color: #4a5568; text-decoration: none; font-size: 15px; }
nav a:hover { color: #3182ce; }
.btn { display: inline-block; padding: 10px 24px; background: #3182ce; color: white; border-radius: 6px; text-decoration: none; font-weight: 500; border: none; cursor: pointer; }
.btn:hover { background: #2c5282; }
.btn-outline { background: transparent; color: #3182ce; border: 1px solid #3182ce; }
.btn-outline:hover { background: #ebf8ff; }
.hero { padding: 80px 0; text-align: center; }
.hero h1 { font-size: 48px; margin-bottom: 20px; letter-spacing: -1px; }
.hero p { font-size: 20px; color: #718096; max-width: 700px; margin: 0 auto 30px; }
.hero .actions { display: flex; gap: 16px; justify-content: center; }
.section { padding: 60px 0; }
.section h2 { font-size: 32px; text-align: center; margin-bottom: 50px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.feature { background: #f7fafc; padding: 30px; border-radius: 12px; border: 1px solid #e2e8f0; }
.feature h3 { font-size: 18px; margin-bottom: 12px; }
.feature p { color: #718096; font-size: 15px; }
.feature .icon { width: 40px; height: 40px; background: #ebf8ff; border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; font-size: 20px; }
.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.tier { background: white; padding: 40px 30px; border-radius: 12px; border: 1px solid #e2e8f0; text-align: center; }
.tier.featured { border: 2px solid #3182ce; box-shadow: 0 10px 25px rgba(49,130,206,0.15); }
.tier h3 { font-size: 22px; margin-bottom: 8px; }
.tier .price { font-size: 36px; font-weight: 700; margin: 20px 0; }
.tier .price small { font-size: 14px; color: #a0aec0; font-weight: 400; }
.tier ul { list-style: none; text-align: left; margin: 20px 0; }
.tier li { padding: 8px 0; color: #4a5568; font-size: 15px; }
.tier li::before { content: "✓ "; color: #38a169; font-weight: 700; }
.tier .btn { width: 100%; }
.doc { max-width: 800px; margin: 0 auto; padding: 60px 0; }
.doc h1 { font-size: 36px; margin-bottom: 30px; }
.doc h2 { font-size: 24px; margin-top: 40px; margin-bottom: 16px; }
.doc h3 { font-size: 18px; margin-top: 28px; margin-bottom: 10px; }
.doc p { margin-bottom: 16px; color: #2d3748; }
.doc code { background: #edf2f7; padding: 2px 6px; border-radius: 4px; font-family: monospace; font-size: 14px; color: #d53f8c; }
.doc pre { background: #1a202c; color: #e2e8f0; padding: 20px; border-radius: 8px; overflow-x: auto; margin: 16px 0; }
.doc pre code { background: transparent; color: inherit; padding: 0; }
.doc ul, .doc ol { margin-left: 24px; margin-bottom: 16px; }
.doc li { margin-bottom: 8px; }
.doc a { color: #3182ce; }
footer { border-top: 1px solid #e2e8f0; padding: 40px 0; margin-top: 60px; background: #f7fafc; }
footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
footer h4 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px; color: #718096; margin-bottom: 16px; }
footer ul { list-style: none; }
footer li { margin-bottom: 8px; }
footer a { color: #4a5568; text-decoration: none; font-size: 14px; }
footer a:hover { color: #3182ce; }
.footer-bottom { border-top: 1px solid #e2e8f0; padding-top: 20px; margin-top: 40px; text-align: center; color: #a0aec0; font-size: 13px; }
.field { margin-bottom: 20px; }
.field label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 14px; }
.field input, .field textarea { width: 100%; padding: 12px; border: 1px solid #e2e8f0; border-radius: 6px; font-size: 15px; font-family: inherit; }
@media (max-width: 768px) { nav { display: none; } .hero h1 { font-size: 36px; } footer .container { grid-template-columns: 1fr; } }