/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --primary: #4F46E5; --primary-dark: #4338CA; --secondary: #1E293B; --accent: #10B981; --bg-light: #F8FAFC; --bg-white: #FFFFFF; --text-dark: #1E293B; --text-light: #64748B; --border: #E2E8F0; --radius: 8px; --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1); }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; line-height: 1.6; color: var(--text-dark); background: var(--bg-light); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3, h4 { font-weight: 600; line-height: 1.2; }
h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }
.btn { display: inline-block; padding: 12px 24px; border-radius: var(--radius); font-weight: 500; text-decoration: none; cursor: pointer; border: none; transition: all 0.2s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: white; color: var(--primary); border: 2px solid var(--primary); }
.btn-secondary:hover { background: var(--bg-light); }
.btn-large { padding: 16px 32px; font-size: 1.1rem; }
.btn-block { display: block; width: 100%; text-align: center; }
.navbar { background: white; box-shadow: var(--shadow); padding: 1rem 0; position: sticky; top: 0; z-index: 100; }
.nav-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary); text-decoration: none; }
.nav-links { display: flex; list-style: none; gap: 2rem; }
.nav-links a { color: var(--text-dark); text-decoration: none; font-weight: 500; }
.nav-links a:hover { color: var(--primary); }
.footer { background: var(--secondary); color: white; padding: 2rem 0; text-align: center; margin-top: 4rem; }
.footer p { margin: 0.5rem 0; color: #94A3B8; }
.hero { text-align: center; padding: 5rem 0; background: linear-gradient(135deg, #EEF2FF 0%, #F8FAFC 100%); }
.hero h1 { font-size: 3rem; color: var(--secondary); }
.hero-subtitle { font-size: 1.25rem; color: var(--text-light); margin-bottom: 2rem; }
.hero-buttons { display: flex; gap: 1rem; justify-content: center; }
.features { padding: 4rem 0; }
.features h2 { text-align: center; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.feature-card { background: white; padding: 2rem; border-radius: var(--radius); box-shadow: var(--shadow); text-align: center; }
.feature-icon { font-size: 3rem; margin-bottom: 1rem; }
.models { padding: 4rem 0; background: white; }
.model-card { background: var(--bg-light); border-radius: var(--radius); padding: 2rem; display: flex; justify-content: space-between; align-items: center; max-width: 800px; margin: 2rem auto 0; }
.model-info ul { list-style: none; margin-top: 1rem; }
.model-info li { margin: 0.5rem 0; color: var(--text-light); }
.model-price { text-align: right; }
.price-label { font-size: 0.875rem; color: var(--text-light); }
.price-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.price-unit { font-size: 0.875rem; color: var(--text-light); }
.cta { text-align: center; padding: 4rem 0; background: var(--primary); color: white; }
.cta h2 { color: white; }
.cta p { margin-bottom: 2rem; opacity: 0.9; }
.pricing-hero { text-align: center; padding: 4rem 0; background: linear-gradient(135deg, #EEF2FF 0%, #F8FAFC 100%); }
.pricing-section { padding: 4rem 0; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; max-width: 1000px; margin: 0 auto; }
.pricing-card { background: white; border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow); text-align: center; border: 2px solid transparent; }
.pricing-card:hover { border-color: var(--primary); }
.plan-name { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; }
.plan-tokens { font-size: 0.875rem; color: var(--text-light); margin-bottom: 1rem; }
.plan-price { margin: 1.5rem 0; }
.currency { font-size: 1.5rem; vertical-align: top; }
.amount { font-size: 3rem; font-weight: 700; color: var(--primary); }
.plan-desc { color: var(--text-light); margin-bottom: 1.5rem; }
.pricing-note { text-align: center; margin-top: 3rem; color: var(--text-light); }
.pricing-note a { color: var(--primary); }
.pricing-faq { padding: 4rem 0; background: white; }
.faq-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.faq-item h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.faq-item p { color: var(--text-light); font-size: 0.9rem; }
.docs-hero { text-align: center; padding: 4rem 0; background: linear-gradient(135deg, #EEF2FF 0%, #F8FAFC 100%); }
.docs-content { padding: 3rem 0; }
.docs-content .container { display: grid; grid-template-columns: 200px 1fr; gap: 3rem; }
.docs-nav { position: sticky; top: 100px; height: fit-content; }
.docs-nav ul { list-style: none; }
.docs-nav li { margin: 0.75rem 0; }
.docs-nav a { color: var(--text-light); text-decoration: none; }
.docs-nav a:hover { color: var(--primary); }
.doc-section { margin-bottom: 3rem; padding-bottom: 2rem; border-bottom: 1px solid var(--border); }
.code-block { background: #1E293B; color: #E2E8F0; padding: 1.5rem; border-radius: var(--radius); overflow-x: auto; margin: 1rem 0; font-family: 'Monaco', 'Consolas', monospace; font-size: 0.875rem; }
.endpoint { background: var(--bg-light); padding: 1.5rem; border-radius: var(--radius); margin: 1rem 0; }
.error-table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.error-table th, .error-table td { padding: 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
.error-table th { background: var(--bg-light); font-weight: 600; }
.contact-hero { text-align: center; padding: 4rem 0; background: linear-gradient(135deg, #EEF2FF 0%, #F8FAFC 100%); }
.contact-section { padding: 3rem 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; max-width: 900px; margin: 0 auto; }
.contact-form-wrapper { background: white; padding: 2rem; border-radius: var(--radius); box-shadow: var(--shadow); }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.75rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 1rem; }
.form-group textarea { resize: vertical; }
.success-section { padding: 4rem 0; }
.success-card { max-width: 600px; margin: 0 auto; background: white; padding: 3rem; border-radius: var(--radius); box-shadow: var(--shadow); text-align: center; }
.success-icon { font-size: 4rem; margin-bottom: 1rem; }
.success-message { color: var(--text-light); margin-bottom: 2rem; }
.order-details { background: var(--bg-light); padding: 1.5rem; border-radius: var(--radius); margin: 2rem 0; text-align: left; }
.steps-list { text-align: left; margin: 1rem 0 2rem 2rem; }
.steps-list li { margin: 0.5rem 0; }
.success-buttons { display: flex; gap: 1rem; justify-content: center; }
.pricing-card:hover { border-color: var(--primary); }
.nav-btn { padding: 6px 16px; border-radius: 6px; font-size: 0.875rem; font-weight: 500; text-decoration: none; }
.nav-btn-primary { background: #4F46E5; color: white; }
.nav-btn-primary:hover { background: #4338CA; }
.nav-btn-outline { border: 1.5px solid #4F46E5; color: #4F46E5; }
.nav-btn-outline:hover { background: #4F46E5; color: white; }
@media (max-width: 768px) { .nav-links { display: none; } .hero h1 { font-size: 2rem; } .model-card { flex-direction: column; text-align: center; } .model-price { text-align: center; margin-top: 1rem; } .contact-grid { grid-template-columns: 1fr; } .docs-content .container { grid-template-columns: 1fr; } .pricing-grid { grid-template-columns: 1fr; } }