*{box-sizing:border-box}
body{font-family:system-ui,Arial,sans-serif;margin:0;background:#f8fafc;color:#0f172a}
.container{max-width:820px;margin:24px auto;padding:16px}
.step{display:none;background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:16px;margin-top:12px}
.step.active{display:block}
input,select{width:100%;padding:10px;border:1px solid #cbd5e1;border-radius:10px;margin-top:6px}
.check,.radio{display:flex;gap:8px;align-items:center;margin:8px 0}
.nav{display:flex;justify-content:space-between;margin-top:12px}
button{padding:10px 14px;border-radius:10px;border:1px solid #0f172a;background:#0f172a;color:#fff}
.hidden{display:none}
.debug{background:#0b1020;color:#a5b4fc;padding:12px;border-radius:8px;margin-top:12px;white-space:pre-wrap}