@import url("https://fonts.googleapis.com/css2?family=Anek+Bangla:wght@300..800&display=swap");.ob{--p:#4F46E5;--pt:#EEEDFE;--ink:#17171C;--muted:#6B7280;--border:#E6E6EF;min-height:100vh;background:#F6F7FB;font-family:Anek Bangla,sans-serif;color:var(--ink);flex-direction:column;padding:28px 16px}.ob,.ob-head{display:flex;align-items:center}.ob-head{width:100%;max-width:460px;justify-content:space-between;margin-bottom:22px}.ob-head img{height:30px}.ob-card{width:100%;max-width:460px;background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px 24px;box-shadow:0 10px 30px rgba(20,20,40,.06)}.ob-card h1{font-family:Anek Bangla,system-ui,sans-serif;font-weight:700;font-size:25px;margin:0 0 6px}.ob-sub{font-size:16px;margin:0 0 20px;word-break:break-word}.ob-note,.ob-sub{color:var(--muted)}.ob-note{font-size:15px;margin:4px 0 14px}.ob-in{width:100%;border:1px solid var(--border);border-radius:12px;padding:13px 15px;font-family:inherit;font-size:17px;margin-bottom:12px;background:#FBFBFD;box-sizing:border-box}.ob-in:focus{outline:none;border-color:var(--p)}.ob-code{text-align:center;font-size:30px;letter-spacing:12px;font-family:monospace}.ob-primary{display:block;width:100%;text-align:center;border:none;background:var(--p);color:#fff;font-family:Anek Bangla,system-ui,sans-serif;font-weight:600;font-size:18px;padding:14px;border-radius:12px;cursor:pointer;text-decoration:none;margin-top:6px}.ob-primary:disabled{opacity:.5}.ob-back{display:block;width:100%;text-align:center;border:none;background:none;color:var(--muted);font-family:Anek Bangla,system-ui,sans-serif;font-size:16px;padding:12px;cursor:pointer;text-decoration:none;margin-top:4px}.ob-err{background:#FDECEC;color:#C0392B;border-radius:10px;padding:10px 13px;font-size:15.5px;margin-bottom:12px}.ob-toggle{display:flex;gap:4px;background:#F1F1F6;border-radius:12px;padding:4px;margin-bottom:16px}.ob-toggle button{flex:1 1;border:none;background:none;font-family:Anek Bangla,system-ui,sans-serif;font-weight:600;font-size:16px;padding:10px;border-radius:9px;cursor:pointer;color:var(--muted)}.ob-toggle button.on{background:#fff;color:var(--p);box-shadow:0 1px 4px rgba(0,0,0,.08)}.ob-plans{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px;margin-bottom:18px}.ob-plan{text-align:left;border:1.5px solid var(--border);border-radius:14px;padding:16px;cursor:pointer;background:#fff}.ob-plan.on{border-color:var(--p);box-shadow:0 0 0 3px var(--pt)}.ob-plan b{display:block;font-family:Anek Bangla,system-ui,sans-serif;font-size:18px;margin-bottom:4px}.ob-price{display:block;font-weight:700;font-size:20px;color:var(--p)}.ob-price i{font-style:normal;font-weight:400}.ob-price i,.ob-tag{font-size:14px;color:var(--muted)}.ob-tag{display:block;margin-top:6px}.ob-sub-field{display:flex;align-items:center;gap:8px;margin-bottom:4px}.ob-sub-field .ob-in{margin-bottom:0}.ob-domain{color:var(--muted);font-size:16px;white-space:nowrap}.ob-subhint{font-size:15px;min-height:20px;margin-bottom:12px}.ob-subhint .ok{color:#10B981}.ob-subhint .bad{color:#C0392B}.ob-subhint .muted{color:var(--muted)}.ob-done{text-align:center}.ob-check{width:64px;height:64px;border-radius:50%;background:#10B981;color:#fff;font-size:36px;display:grid;place-items:center;margin:0 auto 16px}.ob-niches{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px;margin-bottom:18px}.ob-niche{display:flex;align-items:center;gap:10px;text-align:left;border:1.5px solid var(--border);border-radius:12px;padding:14px;cursor:pointer;background:#fff;font-family:Anek Bangla,system-ui,sans-serif;font-weight:600;font-size:16px;color:var(--ink)}.ob-niche.on{border-color:var(--p);box-shadow:0 0 0 3px var(--pt)}.ob-niche-em{font-size:22px}@media(max-width:420px){.ob-niches{grid-template-columns:1fr}}.ob button,.ob input,.ob select,.ob textarea{font-family:inherit}.ob-head a{display:flex}.ob-lang{font-size:15px;font-weight:600;color:var(--p);border:1px solid var(--border);background:#fff;border-radius:9px;padding:5px 12px;text-decoration:none}.ob-primary{box-sizing:border-box}