:root{--background:#fafafa;--foreground:#171717;--muted:#6b7280;--border:#e5e7eb;--accent:#25d366;--accent-dark:#128c7e;--surface:#fff;--info-bg:#f0fdf4;--info-border:#bbf7d0}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--background);color:var(--foreground);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}.container{max-width:680px;margin:0 auto;padding:64px 24px 80px}.hero{margin-bottom:48px}.badge{letter-spacing:.05em;text-transform:uppercase;color:var(--accent-dark);background:var(--info-bg);border:1px solid var(--info-border);border-radius:999px;margin-bottom:20px;padding:4px 12px;font-size:.75rem;font-weight:600;display:inline-block}h1{color:var(--foreground);margin-bottom:16px;font-size:2rem;font-weight:700;line-height:1.2}.subtitle{color:var(--muted);font-size:1.075rem;line-height:1.7}.steps{flex-direction:column;gap:24px;margin-bottom:48px;display:flex}.step{align-items:flex-start;gap:16px;display:flex}.step-number{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;margin-top:2px;font-size:.9rem;font-weight:700;display:flex}.step-content h3{margin-bottom:4px;font-size:1rem;font-weight:600}.step-content p{color:var(--muted);font-size:.925rem;line-height:1.6}.info-box{background:var(--info-bg);border:1px solid var(--info-border);border-radius:12px;margin-bottom:48px;padding:24px}.info-box h3{margin-bottom:12px;font-size:.95rem;font-weight:600}.info-box ul{flex-direction:column;gap:8px;list-style:none;display:flex}.info-box li{color:var(--muted);padding-left:20px;font-size:.9rem;position:relative}.info-box li:before{content:"✓";color:var(--accent-dark);font-weight:700;position:absolute;left:0}.cta-area{text-align:center}.cta-button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:14px 36px;font-size:1rem;font-weight:600;transition:background .2s;display:inline-block}.cta-button:hover:not(:disabled){background:var(--accent-dark)}.cta-button:disabled{opacity:.5;cursor:not-allowed}.cta-hint{color:var(--muted);margin-top:12px;font-size:.825rem}.cta-success{color:var(--accent-dark);margin-top:12px;font-size:.9rem;font-weight:500}.cta-error{color:#dc2626;min-height:1.4em;margin-top:12px;font-size:.9rem;font-weight:500}.success-page{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:8px;min-height:60vh;display:flex}.success-icon{background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;margin-bottom:16px;font-size:2rem;font-weight:700;display:flex}.overlay{z-index:1000;-webkit-backdrop-filter:blur(6px);background:#0000008c;justify-content:center;align-items:center;animation:.25s ease-out overlayFadeIn;display:flex;position:fixed;inset:0}@keyframes overlayFadeIn{0%{opacity:0}to{opacity:1}}.overlay-content{background:var(--surface);text-align:center;border-radius:16px;width:90%;max-width:480px;padding:48px 40px;animation:.3s ease-out overlaySlideUp;box-shadow:0 24px 64px #0003}@keyframes overlaySlideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.overlay-content h2{color:var(--foreground);margin-bottom:12px;font-size:1.35rem;font-weight:700}.overlay-content p{color:var(--muted);margin-bottom:8px;font-size:.95rem;line-height:1.65}.overlay-spinner{border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:48px;height:48px;margin:0 auto 24px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.overlay-hint{color:var(--muted);background:var(--info-bg);border:1px solid var(--info-border);border-radius:8px;margin-top:20px;padding:12px 16px;font-size:.825rem;line-height:1.5}.loading-state{min-height:60vh;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;font-size:1rem;display:flex}