:root{color-scheme:light;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f6f8fb;color:#111827}*{box-sizing:border-box}body,html{margin:0;min-height:100%}body{padding:0;line-height:1.5}button,input,select,textarea{font:inherit}button{cursor:pointer}main{max-width:1000px;margin:0 auto;padding:40px 24px}.card{background:#fff;border:1px solid #e5e7eb;border-radius:24px;padding:24px;box-shadow:0 20px 40px rgba(15,23,42,.06)}.heading{margin:0;font-size:clamp(2rem,3vw,2.8rem)}.header-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}.slogan-arrow{font-size:1.8rem;color:#38bdf8}.slogan{font-size:clamp(1.3rem,2vw,1.6rem);font-weight:700}.subheading{margin:0;color:#6b7280}.subheading.slogan{color:#38bdf8}.field{display:grid;grid-gap:8px;gap:8px;margin:16px 0}.label{font-weight:600;color:#111827}.input,.select,.textarea{width:100%;padding:14px 16px;border-radius:14px;border:1px solid #d1d5db;background:#fafafa;color:#111827}.textarea{min-height:140px;resize:vertical}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 18px;border:none;border-radius:14px;font-weight:700;background:#2563eb;color:#fff;transition:background .2s ease}.button:hover{background:#1d4ed8}.button:disabled{opacity:.6;cursor:not-allowed}.section{margin-top:32px}.summary{background:#f8fafc;border-radius:18px;padding:18px;border:1px solid #e2e8f0;color:#111827;white-space:pre-wrap}.site-nav{justify-content:space-between;flex-wrap:wrap;gap:16px;padding:18px 24px;background:#fff;border-bottom:1px solid #e5e7eb}.nav-brand,.site-nav{display:flex;align-items:center}.nav-brand{gap:8px;font-weight:800;color:#111827}.nav-brand-text{font-size:1.1rem}.nav-brand-arrow,.nav-brand-slogan{color:#38bdf8}.nav-links{display:flex;flex-wrap:wrap;gap:16px;align-items:center}.site-nav a{color:#2563eb;font-weight:700;text-decoration:none;padding:10px 14px;border-radius:12px;transition:background .2s ease,color .2s ease}.site-nav a:hover{background:#eff6ff}.tip-panel{margin:32px auto;max-width:720px;background:#fff;border:1px solid #e5e7eb;border-radius:24px;padding:24px}.tip-title{margin:0 0 10px;font-size:1.1rem}.tip-copy{margin:0 0 18px;color:#4b5563;line-height:1.6}.tip-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.tip-button{min-width:220px}.primary-cta{background:#10b981}.primary-cta:hover{background:#059669}.toast{position:fixed;bottom:24px;right:24px;background:#111827;color:#f8fafc;padding:14px 18px;border-radius:16px;box-shadow:0 16px 32px rgba(15,23,42,.2)}.payment-section{margin-top:20px;padding:18px;background:#0f172a;border-radius:18px}.payment-row{margin-top:14px}.grid-two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px;gap:12px}.payment-section .label{color:#e2e8f0}.payment-section .input,.payment-section .select{background:#1f2937;border-color:#374151;color:#f8fafc}.payment-section .input::placeholder{color:#9ca3af}.payment-section .tip-button{width:100%;margin-top:18px}.logo{display:none}.site-header{display:block}@media (max-width:640px){.site-header{gap:10px}.heading{font-size:1.4rem}}