:root{--bg:#f7f8fa;--fg:#14171c;--mut:#5b6472;--card:#fff;--line:#e2e6ec;--acc:#2563eb;--ok:#15803d;--warn:#b45309;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f1115;--fg:#e8eaee;--mut:#9aa3b2;--card:#171a21;--line:#2a2f3a;--acc:#60a5fa;--ok:#4ade80;--warn:#fbbf24}}
:root[data-theme=dark]{--bg:#0f1115;--fg:#e8eaee;--mut:#9aa3b2;--card:#171a21;--line:#2a2f3a;--acc:#60a5fa;--ok:#4ade80;--warn:#fbbf24}
*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg)}
header,main,footer{max-width:860px;margin:0 auto;padding:12px 16px}
header{display:flex;align-items:center;justify-content:space-between;gap:8px}header a{color:var(--fg);text-decoration:none;font-weight:700}
h1{font-size:1.45rem;margin:.2em 0 .1em;line-height:1.25}.sub{color:var(--mut);margin:0 0 12px}
a{color:var(--acc)}button,select,input{font:inherit;color:inherit}
.tool{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
#fk-drop{border:2px dashed var(--line);border-radius:12px;padding:26px 12px;text-align:center;cursor:pointer}#fk-drop.over,#fk-drop:focus{border-color:var(--acc);outline:none}
#fk-picked{color:var(--mut);font-size:.9rem;word-break:break-word}
.ctrl{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin-top:12px}.ctrl label{display:flex;flex-direction:column;font-size:.85rem;color:var(--mut)}
select,input[type=number],input[type=text]{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:9px;min-width:0}select{max-width:100%}
input[type=number]{width:96px}
.fk-btn,#fk-go{display:inline-block;background:var(--acc);color:#fff;border:0;border-radius:9px;padding:10px 16px;font-weight:600;cursor:pointer;text-decoration:none}
#fk-go:disabled{opacity:.45;cursor:default}
.ghost{background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;cursor:pointer}
#fk-note,#fk-status,#fk-free{font-size:.85rem;color:var(--mut);margin:.4em 0 0}
.fk-card{border:1px solid var(--line);border-radius:12px;padding:12px;margin-top:12px}
.fk-row{display:flex;justify-content:space-between;gap:8px;align-items:center}.fk-name{word-break:break-all}
.fk-badge{font-size:.75rem;padding:2px 8px;border-radius:99px;border:1px solid}.ok{color:var(--ok)}.warn{color:var(--warn)}
.fk-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:10px 0}.fk-stats div{display:flex;flex-direction:column}.fk-stats span,.fk-stats small{color:var(--mut);font-size:.78rem}
.fk-cmp{display:grid;grid-template-columns:1fr 1fr;gap:8px}.fk-cmp figure{margin:0;overflow:hidden;border-radius:8px;background:#0002;aspect-ratio:1}
.fk-cmp img{width:100%;height:100%;object-fit:contain;display:block}.fk-cmp.zoom img{object-fit:none}
.fk-cmp figcaption{font-size:.75rem;color:var(--mut);text-align:center}.fk-meta{font-size:.85rem;color:var(--ok)}.fk-err{color:var(--warn)}
#fk-wall{border:1px solid var(--acc);border-radius:12px;padding:14px;margin-top:12px}#fk-wall h2{margin:.1em 0;font-size:1.1rem}#fk-wall ul{padding-left:1.2em;margin:.4em 0}
.article{margin-top:22px}.article h2{font-size:1.15rem}footer{color:var(--mut);font-size:.85rem}nav.links a{margin-right:10px;display:inline-block}
@media (max-width:520px){.fk-stats{grid-template-columns:1fr 1fr}h1{font-size:1.25rem}}