body,html{padding:0;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;height:100%}*{box-sizing:border-box}a{color:inherit;text-decoration:underline}.container{min-height:100vh;display:flex;flex-direction:column}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid #e5e7eb}.brand{font-weight:700}.center{flex:1 1;display:flex;align-items:center;justify-content:center;padding:20px}.bigBtn{width:min(520px,92vw);height:min(220px,40vh);border-radius:18px;border:1px solid #111827;font-size:28px;font-weight:700}.bigBtn,.smallBtn{background:#111827;color:#fff;cursor:pointer}.smallBtn{padding:10px 14px;border-radius:12px;border:1px solid #111827}.smallBtn.secondary{background:#fff;color:#111827}.card{max-width:920px;margin:0 auto;padding:18px;width:100%}.panel{border:1px solid #e5e7eb;border-radius:16px;padding:16px;margin-top:16px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}input,select,textarea{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:12px;font-size:14px}label{display:block;font-size:12px;color:#6b7280;margin-bottom:6px}.kbd{background:#f3f4f6;padding:2px 6px;border-radius:8px}.muted{color:#6b7280;font-size:13px}.backdrop{position:fixed;inset:0;background:rgba(0,0,0,.35);display:flex;align-items:center;justify-content:center;padding:20px}.dialog{width:min(760px,94vw);background:#fff;border-radius:18px;border:1px solid #e5e7eb;padding:16px}.dialogHeader{display:flex;align-items:center;justify-content:space-between;gap:12px}.list{margin-top:10px;border:1px solid #e5e7eb;border-radius:14px;overflow:hidden;max-height:260px;overflow-y:auto}.item{padding:10px 12px;border-bottom:1px solid #f3f4f6;display:flex;align-items:center;justify-content:space-between;gap:10px}.item:last-child{border-bottom:none}