:root{--fg:#1a1a1a;--bg:#fff;--muted:#444;--line:#666;--soft:#f3f6f5;--accent:#0f5c4d;--focus:#c2410c}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.65 -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--fg);background:var(--bg);word-break:keep-all;overflow-wrap:break-word}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
a{color:var(--accent)}
a:focus-visible,button:focus-visible,select:focus-visible,textarea:focus-visible,.file:focus-visible+label{outline:3px solid var(--focus);outline-offset:2px}
.site-head{border-bottom:1px solid #d0d4da}
.brand{display:inline-flex;align-items:center;min-height:44px;font-weight:700;color:var(--fg);text-decoration:none}
h1{font-size:1.6rem;line-height:1.3;margin:14px 0 8px}
h2{font-size:1.2rem;line-height:1.4;margin:28px 0 8px}
h3{font-size:1rem;line-height:1.5;margin:16px 0 4px}
p,ul,ol{margin:0 0 12px}
li{margin-bottom:4px}
.answer{margin:0 0 16px}
.note{font-size:.9rem;color:var(--muted)}

.tool{margin:0 0 8px;padding:12px;border:2px solid var(--line);border-radius:8px;background:var(--soft)}
.pick{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;margin:0 0 8px}
.file{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
.limit{font-size:.9rem;color:var(--muted)}
.fname{flex:1 1 100%;margin:0;font-size:.9rem;overflow-wrap:anywhere}
.fname:empty{display:none}
.field{display:flex;flex-direction:column;gap:4px;margin:0 0 8px}
.field label{font-weight:700}
select,textarea{font:inherit;color:var(--fg);background:#fff;border:2px solid var(--line);border-radius:6px}
select{min-height:44px;padding:6px 8px;width:100%}
textarea{width:100%;min-height:180px;padding:8px;resize:vertical}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding:8px 18px;font:inherit;font-weight:700;color:#fff;background:var(--accent);border:2px solid var(--accent);border-radius:6px;cursor:pointer;touch-action:manipulation}
.btn.ghost{color:var(--accent);background:#fff}
.btn:disabled{color:#4a4f57;background:#e6e8eb;border:2px dashed #6b7280;cursor:not-allowed}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 8px}
progress{display:block;width:100%;height:10px;margin:0 0 8px}
progress[hidden]{display:none}
#status{margin:0 0 8px;padding:6px 8px;border-left:4px solid var(--line);background:#fff;font-weight:700}
#status:empty{margin:0;padding:0;border:0}
#status[data-state="done"]{border-left-color:var(--accent)}
#status[data-state="done"]::before{content:"\2713  "}
#status[data-state="warn"],#status[data-state="error"]{border-left-color:var(--focus)}
#status[data-state="warn"]::before,#status[data-state="error"]::before{content:"\26A0  "}
#status[data-state="loading"]::before,#status[data-state="running"]::before{content:"\25CF  "}
#status[data-state="cancelled"]::before{content:"\2715  "}
#previewbox{margin:0 0 8px}
#previewbox[hidden]{display:none}
#preview{display:block;max-width:100%;max-height:180px;border:1px solid var(--line);border-radius:4px;background:#fff}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.site-foot{margin-top:40px;border-top:1px solid #d0d4da;padding:8px 0 24px;font-size:.9rem;color:var(--muted)}
.site-foot ul{list-style:none;padding:0;margin:0 0 8px;display:flex;flex-wrap:wrap;gap:0 16px}
.site-foot li{margin:0}
.site-foot a{display:inline-flex;align-items:center;min-height:44px}

@media (max-width:639px){
  h1{margin:8px 0 6px}
  .answer{margin:0 0 8px;font-size:.95rem;line-height:1.55}
  .tool{padding:8px}
}
@media (min-width:640px){
  h1{font-size:2rem}
  select{width:auto;min-width:200px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}