:root{
  --paper:#f6f1e7; --paper-2:#fbf8f1; --ink:#1d1b17; --muted:#6f685c; --line:#ddd4c2;
  --signal:#c2410c; --ok:#2f7d4f; --ok-bg:#e4f1e8; --refuse:#a15c00; --refuse-bg:#fbefd6; --bad:#a1262b; --bad-bg:#f8e1e1;
  --code:#16140f; --code-ink:#e9e2d0;
}
@media (prefers-color-scheme: dark){
  :root{ --paper:#16140f; --paper-2:#1d1a14; --ink:#efe8d6; --muted:#a89f8b; --line:#332e24;
    --signal:#f08a4b; --ok:#6cc58d; --ok-bg:#16301f; --refuse:#f0b255; --refuse-bg:#35290f; --bad:#f08a8d; --bad-bg:#3a1a1c; --code:#0e0d09; }
}
*{box-sizing:border-box;margin:0}
html,body{height:100%}
body{background:var(--paper);color:var(--ink);font:15px/1.55 Inter,system-ui,sans-serif;display:flex;flex-direction:column;min-height:100vh}
.top{display:flex;gap:20px;align-items:center;flex-wrap:wrap;padding:14px 24px;border-bottom:1px solid var(--line);background:var(--paper-2)}
.brand{font:600 26px Newsreader,Georgia,serif;letter-spacing:-.01em}
.brand .mark{color:var(--signal);font-size:14px;vertical-align:middle;margin-right:4px}
.brand small{display:block;font:400 12px Inter;color:var(--muted);letter-spacing:.04em;margin-top:-4px}
.pick{display:flex;gap:16px;flex-wrap:wrap;margin-left:auto}
.pick label{font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:2px;text-transform:uppercase;letter-spacing:.06em}
select{font:500 15px Inter;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:7px 28px 7px 10px;min-width:180px}
.mode{font:500 11px 'IBM Plex Mono',monospace;border:1px solid var(--line);border-radius:99px;padding:3px 10px;color:var(--muted)}
.split{flex:1;display:grid;grid-template-columns:1fr 1fr;min-height:0}
.pane{padding:24px 28px;overflow:auto}
.left{border-right:1px solid var(--line)}
.right{background:var(--paper-2)}
.intro h1{font:600 30px/1.15 Newsreader,Georgia,serif;margin-bottom:6px}
.intro p{color:var(--muted);max-width:52ch}
.steps{list-style:none;padding:0;margin:22px 0;display:flex;flex-direction:column;gap:10px;counter-reset:s}
.step{counter-increment:s;border:1px solid var(--line);border-radius:12px;padding:12px 14px 12px 48px;position:relative;background:var(--paper-2);cursor:pointer;transition:border-color .15s}
.step:hover{border-color:var(--signal)}
.step::before{content:counter(s);position:absolute;left:14px;top:12px;width:24px;height:24px;border-radius:50%;background:var(--ink);color:var(--paper);font:600 12px/24px Inter;text-align:center}
.step.done::before{background:var(--ok)} .step.refused::before{background:var(--refuse)} .step.fail::before{background:var(--bad)}
.step h3{font:600 16px Inter}
.step .say{color:var(--muted);font-size:14px}
.tag{display:inline-block;font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.08em;text-transform:uppercase;padding:1px 7px;border-radius:99px;border:1px solid var(--line);color:var(--muted);margin-left:8px;vertical-align:2px}
.actions{display:flex;gap:10px}
button{font:600 14px Inter;border-radius:8px;padding:9px 16px;border:1px solid var(--ink);cursor:pointer}
.primary{background:var(--ink);color:var(--paper)} .ghost{background:transparent;color:var(--ink)}
button:disabled{opacity:.5;cursor:wait}
.empty{color:var(--muted);padding:40px 0}.empty .big{font:600 22px Newsreader,serif;color:var(--ink);margin-bottom:6px}
.res{border:1px solid var(--line);border-radius:12px;margin-bottom:14px;background:var(--paper);overflow:hidden;animation:in .25s ease}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.res header{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.res header b{font-weight:600}
.chip{font:600 12px Inter;padding:2px 10px;border-radius:99px}
.chip.ok{background:var(--ok-bg);color:var(--ok)} .chip.refuse{background:var(--refuse-bg);color:var(--refuse)} .chip.bad{background:var(--bad-bg);color:var(--bad)}
.res .meta{margin-left:auto;font:400 12px 'IBM Plex Mono',monospace;color:var(--muted)}
.res .body{padding:12px 14px}
.res .why{font:400 17px/1.45 Newsreader,Georgia,serif;margin-bottom:10px}
.res .note{font-size:13px;color:var(--muted);margin-bottom:8px}
details summary{cursor:pointer;font-size:12px;color:var(--muted);margin:6px 0}
pre{background:var(--code);color:var(--code-ink);padding:12px;border-radius:8px;overflow:auto;font:400 12.5px/1.5 'IBM Plex Mono',monospace}
footer{padding:10px 24px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);text-align:center}
@media (max-width:820px){
  .split{grid-template-columns:1fr}.left{border-right:0;border-bottom:1px solid var(--line)}
  .pick{margin-left:0;width:100%}.pick label,select{width:100%}
  .top,.pane{padding-left:16px;padding-right:16px}
}
.notready{margin-top:12px;padding:12px 14px;border:1px dashed var(--refuse);background:var(--refuse-bg);color:var(--refuse);border-radius:10px;max-width:52ch}