:root{--bg:#faf8f4;--card:#fff;--fg:#26211d;--muted:#6f655d;--line:#e4ddd3;--accent:#9a4f36;--accent-fg:#fff;--ok:#2f6f4f;--err:#a1281f;--warn-bg:#fbf1e0;--radius:14px}
:root[data-theme=dark]{--bg:#17130f;--card:#211c17;--fg:#f1ebe3;--muted:#a89d92;--line:#3a322a;--accent:#d98b6c;--accent-fg:#1a120d;--ok:#6fc297;--err:#ff8f86;--warn-bg:#35291a}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#17130f;--card:#211c17;--fg:#f1ebe3;--muted:#a89d92;--line:#3a322a;--accent:#d98b6c;--accent-fg:#1a120d;--ok:#6fc297;--err:#ff8f86;--warn-bg:#35291a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.5 "Manrope",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
header,main,footer{max-width:760px;margin:0 auto;padding:0 16px}
header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:18px;padding-bottom:8px}
.brand{font:600 1.35rem/1 Georgia,"Times New Roman",serif;color:var(--fg);text-decoration:none;letter-spacing:.01em}
.brand b{color:var(--accent)}
.tools{display:flex;gap:8px}
select,button,input{font:inherit;color:inherit}
select,.icon{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:6px 10px;min-height:38px}
h1{font:600 1.7rem/1.2 Georgia,"Times New Roman",serif;margin:18px 0 6px}
.lead{color:var(--muted);margin:0 0 18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:0 0 16px}
.card h2{font-size:1.05rem;margin:0 0 10px}
.drop{border:2px dashed var(--line);border-radius:var(--radius);padding:26px 14px;text-align:center;cursor:pointer;color:var(--muted)}
.drop.over,.drop:focus-visible{border-color:var(--accent);color:var(--fg);outline:none}
.btn{background:var(--accent);color:var(--accent-fg);border:0;border-radius:10px;padding:11px 18px;font-weight:600;cursor:pointer;min-height:44px}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.row.sp{justify-content:space-between}
ul.files{list-style:none;margin:12px 0;padding:0}
ul.files li{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);word-break:break-all}
ul.files .sz{color:var(--muted);white-space:nowrap}
.x{background:none;border:0;color:var(--err);cursor:pointer;padding:0 6px;font-size:1.1rem}
.notice{background:var(--warn-bg);border-radius:10px;padding:10px 12px;font-size:.92rem;margin:12px 0}
.bar{height:10px;background:var(--line);border-radius:6px;overflow:hidden;margin:12px 0}
.bar>i{display:block;height:100%;width:0;background:var(--accent);transition:width .15s}
.err{color:var(--err);margin:8px 0}
.codebox{font:700 clamp(1.9rem,9vw,3rem)/1.1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;text-align:center;padding:14px 4px;word-break:break-all}
.timer{text-align:center;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums}
.muted{color:var(--muted);font-size:.92rem}
input[type=text],input[type=password],textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 12px;min-height:44px}
input.code{font:600 1.3rem ui-monospace,Menlo,monospace;letter-spacing:.15em}
textarea{min-height:110px}
footer{padding-top:8px;padding-bottom:30px;color:var(--muted);font-size:.9rem}
footer a,.card a{color:var(--accent)}
.hidden{display:none!important}
table{width:100%;border-collapse:collapse;font-size:.88rem}
th,td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.scroll{overflow-x:auto}
.tag{display:inline-block;border-radius:6px;padding:1px 7px;font-size:.78rem;border:1px solid var(--line)}
article[data-lang]{display:none}
article[data-lang].on{display:block}
article h2{font-size:1.1rem;margin:18px 0 6px}
.grow{flex:1;min-width:120px}
.center{justify-content:center;text-align:center}
.mt{margin-top:18px}