:root{--bg: #f4f4f4;--panel: #ffffff;--panel-2: #ececec;--line: #cfcfcf;--line-strong: #111111;--text: #111111;--muted: #6b6b6b;--ink: #111111;--warn: #7a7a7a;--mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;--sans: "Helvetica Neue", Arial, system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.5;background-image:radial-gradient(var(--line) 1px,transparent 1px);background-size:22px 22px}.app{max-width:1000px;margin:0 auto;padding:28px 20px 40px;position:relative}.help{position:fixed;top:28px;right:max(20px,calc((100vw - 1000px)/2 + 20px));z-index:20}.helpBtn{width:32px;height:32px;min-width:0;padding:0;border-radius:0;background:#000;color:#fff;border-color:#000;display:grid;place-items:center;font-family:var(--mono);font-size:15px;line-height:1}.helpBtn:hover:not(:disabled){background:#222}.helpPop{position:absolute;top:0;left:calc(100% + 10px);width:min(330px,calc(100vw - 36px));background:#000;color:#fff;border:1px solid #000;padding:14px;box-shadow:0 10px 24px #0000002e;text-align:left}.helpPop h3{margin:0 0 8px;font-size:13px;text-transform:uppercase;letter-spacing:.06em}.helpPop p{margin:0 0 9px;font-size:12px;line-height:1.45;color:#e7e7e7}.helpPop p:last-child{margin-bottom:0}@media(max-width:1380px){.helpPop{top:calc(100% + 8px);left:auto;right:0}}@media(max-width:560px){.help{top:14px;right:12px}}.brand{display:flex;align-items:center;gap:12px;margin-bottom:6px}.brand h1{font-size:24px;margin:0;letter-spacing:-.02em;text-transform:uppercase;font-weight:800}.brand .v{font-family:var(--mono);font-size:11px;color:var(--bg);background:var(--ink);padding:2px 7px;letter-spacing:.05em}.tagline{color:var(--muted);font-size:13px;margin:0 0 22px;max-width:60ch}.stepper{display:flex;flex-wrap:wrap;gap:0;margin-bottom:26px;border:1px solid var(--line-strong)}.step{flex:1 1 160px;min-width:0;display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--panel);border:0;border-right:1px solid var(--line);cursor:pointer;color:var(--muted);text-align:left;transition:background .12s,color .12s}.step:last-child{border-right:0}.step:hover{background:var(--panel-2)}.step.active{color:#fff;background:var(--ink)}.step.active .lbl{color:#fff}.step.active .sub{color:#bdbdbd}.step .num{font-family:var(--mono);font-size:12px;width:24px;height:24px;display:grid;place-items:center;border:1px solid currentColor;flex-shrink:0}.step.active .num{color:#fff}.step.done .num{background:var(--ink);color:#fff;border-color:var(--ink)}.step.active.done 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var(--ink);outline-offset:-1px}button{font-family:var(--sans);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;border-radius:0;border:1px solid var(--line-strong);background:var(--panel);color:var(--text);padding:10px 16px;cursor:pointer;transition:background .1s,color .1s,transform .04s}button:hover:not(:disabled){background:var(--panel-2)}button:active:not(:disabled){transform:translateY(1px)}button:disabled{opacity:.4;cursor:not-allowed}button.primary{background:var(--ink);color:#fff;border-color:var(--ink)}button.primary:hover:not(:disabled){background:#333}button.ghost{background:transparent}a{color:inherit}.reveal{animation:reveal .34s cubic-bezier(.2,.7,.2,1) both}@keyframes reveal{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.reveal{animation:none}}.toggle{display:inline-flex;border:1px solid var(--line-strong)}.toggle button{border:0;border-right:1px solid var(--line-strong);background:var(--panel)}.toggle button:last-child{border-right:0}.toggle button.on{background:var(--ink);color:#fff}.drop{border:1.5px dashed var(--line-strong);padding:34px;text-align:center;color:var(--muted);cursor:pointer;transition:background .12s;background:var(--panel)}.drop:hover,.drop.over{background:var(--panel-2);color:var(--text)}.drop strong{color:var(--text);text-transform:uppercase;letter-spacing:.03em;font-size:13px}.progress{height:8px;background:var(--panel-2);overflow:hidden;border:1px solid var(--line-strong)}.progress>i{display:block;height:100%;width:0;transition:width .2s;background-image:repeating-linear-gradient(45deg,#111 0,#111 8px,#555 8px,#555 16px);background-size:22px 22px;animation:barber .6s linear infinite}@keyframes barber{0%{background-position:0 0}to{background-position:22px 0}}.statusline{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:8px}.spin{width:14px;height:14px;border:2px solid 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