:root{--bg: #0f1115;--bg-elev: #171a21;--bg-elev-2: #1e222b;--border: #2a2f3a;--text: #e6e8ec;--text-dim: #9aa2b1;--accent: #4f8cff;--accent-hover: #6d9fff;--danger: #ff5c5c;--danger-hover: #ff7676;--ok: #3ecf8e;--warn: #f5b83d;--radius: 10px;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text);line-height:1.5}.topbar{padding:28px 20px 16px;text-align:center;border-bottom:1px solid var(--border)}.topbar h1{margin:0 0 6px;font-size:1.7rem}.topbar__subtitle{margin:0;color:var(--text-dim);font-size:.95rem}.app{max-width:760px;margin:0 auto;padding:20px 16px 60px;display:flex;flex-direction:column;gap:20px}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card h2{margin:0 0 14px;font-size:1.05rem;color:var(--text)}.hint{color:var(--text-dim);font-size:.85rem;margin:6px 0 0}.field-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.field-row label{min-width:150px;color:var(--text-dim);font-size:.9rem}.field-row select,.field-row input[type=text]{flex:1;background:var(--bg-elev-2);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:8px 10px;font-size:.9rem}.checkbox-row{display:flex;align-items:center;gap:8px;color:var(--text-dim);font-size:.88rem;margin:10px 0;cursor:pointer}.button-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.btn{background:var(--bg-elev-2);border:1px solid var(--border);color:var(--text);padding:10px 16px;border-radius:8px;font-size:.9rem;cursor:pointer;transition:background .15s,border-color .15s}.btn:hover:not(:disabled){border-color:var(--accent)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--accent);border-color:var(--accent);color:#0b0d11;font-weight:600}.btn--primary:hover:not(:disabled){background:var(--accent-hover)}.btn--danger{background:transparent;border-color:var(--danger);color:var(--danger)}.btn--danger:hover:not(:disabled){background:var(--danger);color:#0b0d11}.btn--ghost{background:transparent;border-color:transparent;color:var(--text-dim)}.btn--ghost:hover:not(:disabled){color:var(--text)}.btn--small{padding:6px 10px;font-size:.82rem}.btn--large{padding:14px 22px;font-size:1rem;width:100%}.status-line{margin-top:14px}.status{display:inline-block;padding:6px 12px;border-radius:999px;background:var(--bg-elev-2);border:1px solid var(--border);color:var(--text-dim);font-size:.85rem}.status--ok{color:var(--ok);border-color:var(--ok)}.banner{padding:12px 14px;border-radius:8px;font-size:.88rem;margin:20px auto;max-width:760px}.banner--error{background:#ff5c5c1a;border:1px solid var(--danger);color:#ffb3b3}.banner--warning{background:#f5b83d1a;border:1px solid var(--warn);color:#ffd98f;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:12px 0 0;max-width:none}.file-rows{display:flex;flex-direction:column;gap:12px;margin-bottom:4px}.file-row{display:grid;grid-template-columns:170px 1fr 110px auto;align-items:center;gap:10px;padding:10px;background:var(--bg-elev-2);border:1px solid var(--border);border-radius:8px}.file-row__label{font-size:.85rem;color:var(--text-dim)}.file-row__drop{position:relative;border:1px dashed var(--border);border-radius:6px;padding:8px 10px;min-height:20px;display:flex;align-items:center;overflow:hidden}.file-row__drop--active{border-color:var(--accent);background:#4f8cff14}.file-row__input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.file-row__filename{font-size:.82rem;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-row__filename--set{color:var(--text)}.file-row__offset{background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:8px 10px;font-family:Cascadia Code,Consolas,monospace;font-size:.85rem;text-align:center}.file-row__progress{grid-column:1 / -1;width:100%;height:6px}.file-row__remove{white-space:nowrap}.advanced{margin-top:14px;border-top:1px solid var(--border);padding-top:12px}.advanced summary{cursor:pointer;color:var(--text-dim);font-size:.88rem;margin-bottom:10px}.overall-progress{display:flex;align-items:center;gap:10px;margin-top:14px}.overall-progress progress{flex:1;height:8px}.log{background:#08090c;border:1px solid var(--border);border-radius:8px;padding:12px;height:240px;overflow-y:auto;font-family:Cascadia Code,Consolas,monospace;font-size:.8rem;color:#b8c4d8;white-space:pre-wrap;word-break:break-word;margin-top:12px}.footer{text-align:center;color:var(--text-dim);font-size:.8rem;padding:20px;border-top:1px solid var(--border)}.footer a{color:var(--accent)}progress{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;border-radius:999px;overflow:hidden;background:var(--bg-elev-2)}progress::-webkit-progress-bar{background:var(--bg-elev-2);border-radius:999px}progress::-webkit-progress-value{background:var(--accent);border-radius:999px}@media (max-width: 640px){.file-row{grid-template-columns:1fr}.field-row{flex-direction:column;align-items:flex-start}.field-row label{min-width:0}.field-row select,.field-row input[type=text]{width:100%}}