:root{--ink:#16181d;--ink-soft:#4a5160;--paper:#ffffff;--ground:#f4f5f7;--line:#d5d9e0;--accent:#1b4dd8;--accent-ink:#ffffff;--warn-bg:#fff4e0;--warn-line:#e0a23a;--warn-ink:#6b4708;--stop-bg:#fdecec;--stop-line:#cf4040;--stop-ink:#7d1d1d;--ok-bg:#e9f6ed;--ok-line:#3f9a5c;--radius:8px;--gap:16px}@media (prefers-color-scheme:dark){:root{--ink:#eceef2;--ink-soft:#a7aebd;--paper:#1b1e24;--ground:#111318;--line:#343a45;--accent:#7ea2ff;--accent-ink:#0d1017;--warn-bg:#362a12;--warn-line:#b58432;--warn-ink:#f0d5a3;--stop-bg:#3a1c1c;--stop-line:#c4605f;--stop-ink:#f2c4c3;--ok-bg:#17301f;--ok-line:#4d9a68}}*{box-sizing:border-box}body{margin:0;background:var(--ground);color:var(--ink);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--accent)}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.shell{max-width:1180px;margin:0 auto;padding:var(--gap)}.masthead{display:flex;flex-wrap:wrap;gap:var(--gap);align-items:baseline;justify-content:space-between;padding-bottom:var(--gap);border-bottom:1px solid var(--line)}.masthead h1{font-size:1.25rem;margin:0}.masthead nav{display:flex;gap:var(--gap);flex-wrap:wrap}.banner{margin:var(--gap) 0;padding:12px 14px;border-radius:var(--radius);border:1px solid var(--warn-line);background:var(--warn-bg);color:var(--warn-ink)}.banner strong{display:block}.columns{display:grid;gap:var(--gap);grid-template-columns:1fr;align-items:start}@media (min-width:900px){.columns{grid-template-columns:minmax(0,1fr) 340px}}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:var(--gap);margin-bottom:var(--gap)}.card h2{font-size:1rem;letter-spacing:.06em;text-transform:uppercase;margin:0 0 12px;color:var(--ink-soft)}.specs{width:100%;border-collapse:collapse;font-size:.94rem}.specs td,.specs th{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}.specs th{font-weight:600;color:var(--ink-soft);width:46%}.scroll-x{overflow-x:auto}.grid-list{list-style:none;margin:0;padding:0;display:grid;gap:var(--gap);grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.field{display:block;margin-bottom:12px}.field span{display:block;font-size:.86rem;color:var(--ink-soft);margin-bottom:4px}.field input,.field select{width:100%;padding:8px 10px;font:inherit;color:inherit;background:var(--ground);border:1px solid var(--line);border-radius:6px}button{font:inherit;padding:9px 16px;border-radius:6px;border:1px solid var(--accent);background:var(--accent);color:var(--accent-ink);cursor:pointer}button.secondary{background:transparent;color:var(--accent)}button[disabled]{opacity:.55;cursor:not-allowed}.stage{border:1px solid var(--line);border-radius:var(--radius);background:var(--ground);position:relative;width:100%;aspect-ratio:3/2;overflow:hidden}.stage-jig{position:absolute;background:var(--paper);border:1px solid var(--line)}.stage-slot{position:absolute;border:1px dashed var(--ink-soft)}.stage-art{position:absolute;background:color-mix(in srgb,var(--accent) 26%,transparent);border:1px solid var(--accent)}.readiness{border-radius:var(--radius);padding:12px 14px;border:1px solid var(--stop-line);background:var(--stop-bg);color:var(--stop-ink)}.readiness ul{margin:8px 0 0;padding-left:20px}.readiness code{font-size:.86rem}.hint{color:var(--ink-soft);font-size:.88rem}.errors{border:1px solid var(--stop-line);background:var(--stop-bg);color:var(--stop-ink);border-radius:var(--radius);padding:10px 12px;margin-bottom:var(--gap)}.visually-hidden{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}.artwork-preview{display:block;max-width:100%;height:auto;max-height:12rem;margin:0 auto .5rem;image-rendering:pixelated;background:repeating-conic-gradient(#e9e9e9 0 25%,#ffffff 0 50%) 50% /16px 16px}