:root{--ink:#16181d;--soft:#5b616e;--line:#e3e5ea;--bg:#f6f7f9;--card:#fff;--accent:#2f5bea;--accent-soft:#e9eefe;--warn:#a15c00;--warn-bg:#fff4e0;--err:#c0262d;--err-bg:#fdecec;--ok:#14804a}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink)}
body{font:15px/1.6 Pretendard,-apple-system,BlinkMacSystemFont,'Noto Sans KR',sans-serif;word-break:keep-all;overflow-wrap:anywhere}
button,input,select{font:inherit;color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.top{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.top a{color:var(--ink);text-decoration:none;font-weight:800;letter-spacing:-.02em}
.top a span{color:var(--accent)}
.top .lang{font-weight:500;font-size:13px;color:var(--soft)}
h1{font-size:clamp(28px,4.4vw,40px);line-height:1.2;letter-spacing:-.035em;margin:18px 0 10px}
.lead{margin:0 0 26px;color:var(--soft);font-size:16px}
.lead b{color:var(--ink);font-weight:600}

.drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:220px;border:2px dashed #c4c9d4;border-radius:16px;background:var(--card);cursor:pointer;text-align:center;padding:28px 20px;transition:border-color .15s,background .15s}
.drop:hover,.drop.over{border-color:var(--accent);background:var(--accent-soft)}
.drop:focus-within{outline:3px solid var(--accent);outline-offset:3px}
.drop input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.drop .icon{width:52px;height:52px;border-radius:14px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px;letter-spacing:.04em}
.drop strong{font-size:18px}
.drop small{color:var(--soft)}
.app.loaded .drop{min-height:0;flex-direction:row;padding:14px 18px;justify-content:flex-start;text-align:left}
.app.loaded .drop .icon{width:40px;height:40px;font-size:11px}
.app.loaded .drop small{display:none}

.msg{margin:14px 0 0;padding:12px 14px;border-radius:10px;font-size:14px}
.msg:empty{display:none}
.msg.info{background:var(--accent-soft);color:#1d3a9c}
.msg.warn{background:var(--warn-bg);color:var(--warn)}
.msg.error{background:var(--err-bg);color:var(--err)}
.msg.ok{background:#e7f6ee;color:var(--ok)}

.pw{margin-top:14px;padding:16px;border-radius:12px;background:var(--card);border:1px solid var(--line)}
.pw form{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.pw input{flex:1 1 200px;padding:10px 12px;border:1px solid #c4c9d4;border-radius:8px}

.panel{margin-top:18px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px}
.fileinfo{display:flex;flex-wrap:wrap;gap:4px 14px;align-items:baseline;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.fileinfo b{font-size:17px;word-break:break-all}
.fileinfo span{color:var(--soft);font-size:14px}
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px 22px}
.opt>label,.opt>.olabel{display:block;font-size:13px;font-weight:700;color:var(--soft);margin-bottom:8px}
.seg{display:inline-flex;border:1px solid #c4c9d4;border-radius:10px;overflow:hidden}
.seg button{border:0;background:#fff;padding:9px 16px;cursor:pointer;min-width:64px}
.seg button+button{border-left:1px solid #c4c9d4}
.seg button[aria-pressed=true]{background:var(--ink);color:#fff}
.opt .hint{display:block;margin-top:6px;font-size:12.5px;color:var(--soft)}
input[type=range]{width:100%;accent-color:var(--accent)}
.range-in{width:100%;padding:9px 12px;border:1px solid #c4c9d4;border-radius:10px}
.range-in[aria-invalid=true]{border-color:var(--err);background:var(--err-bg)}
.selbtns{display:flex;gap:12px;margin-top:6px}
.linkbtn{border:0;background:none;padding:0;color:var(--accent);cursor:pointer;font-size:13px;text-decoration:underline;text-underline-offset:2px}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.btn{border:0;border-radius:12px;padding:13px 22px;font-weight:700;cursor:pointer;background:var(--accent);color:#fff;font-size:16px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.ghost{background:#eef0f4;color:var(--ink);font-weight:600;font-size:14px;padding:10px 16px}
.actions .count{color:var(--soft);font-size:14px}
.prog{margin-top:14px}
.prog[hidden]{display:none}
.bar{height:8px;border-radius:99px;background:#e6e8ee;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
.prog p{margin:6px 0 0;font-size:13px;color:var(--soft)}

.grid{list-style:none;margin:22px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.page{position:relative;background:var(--card);border:2px solid transparent;border-radius:12px;padding:8px;box-shadow:0 1px 3px rgba(20,24,33,.08);transition:border-color .12s}
.page.on{border-color:var(--accent)}
.page .thumb{display:block;width:100%;aspect-ratio:var(--ar,0.707);background:#eceef2;border-radius:6px;overflow:hidden;cursor:pointer}
.page .thumb canvas{display:block;width:100%;height:100%}
.page .row{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:8px;font-size:13px}
.page label{display:flex;align-items:center;gap:6px;cursor:pointer}
.page input[type=checkbox]{width:17px;height:17px;accent-color:var(--accent)}
.page .one{border:1px solid #c4c9d4;background:#fff;border-radius:7px;padding:3px 8px;font-size:12px;cursor:pointer}
.page .one:disabled{opacity:.4;cursor:not-allowed}

.note{margin:34px 0 10px;font-size:13px;color:var(--soft)}
@media(max-width:560px){
  .wrap{padding:0 16px}
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .panel{padding:16px}
  .btn{width:100%}
  .actions .count{width:100%;text-align:center}
}