:root{--bg:#111010;--surface:#43434342;--surface-raised:#1f2223;--surface-focus:#161616;--border:#2f2e2e80;--border-solid:#585858;--text:#fbfbfb;--text-muted:#9a9a9a;--placeholder:#585858;--accent:#55c3ec;--accent-start:#26c4ff;--accent-end:#016074;--accent-hover-start:#72d9ff;--accent-hover-end:#26657e;--gold:#ffc700;--ok:#049b3d;--ok-bright:#28c76f;--err:#dc3545;--err-dim:#791a13;--mono:ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;--sans:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:var(--sans);min-height:100vh;margin:0;padding:3rem 1.5rem 5rem;line-height:1.5}.wrap{max-width:640px;margin:0 auto}.eyebrow{font-family:var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 .6rem;font-size:.78rem;font-weight:700}.logo{width:290px;max-width:100%;height:auto;margin:0 0 1.5rem;display:block}h1{font-family:var(--sans);color:var(--text);margin:0 0 .5rem;font-size:1.7rem;font-weight:600;line-height:1.2}.subtitle{color:var(--text-muted);margin:0 0 2rem;font-size:.95rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1.75rem;box-shadow:0 2px 4px #0000001a}.pair-card+.pair-card{margin-top:1rem}form{display:block}.duo{border-bottom:1px solid var(--border);margin-bottom:1.25rem;padding-bottom:1.25rem;position:relative}.duo:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.remove-duo{border:1px solid var(--border-solid);width:1.5rem;height:1.5rem;color:var(--text-muted);cursor:pointer;z-index:1;background:#2d2d2d;border-radius:50%;font-size:1rem;line-height:1;transition:background .2s,color .2s;position:absolute;top:-.4rem;right:-.4rem}.duo:first-child .remove-duo{display:none}.remove-duo:hover{background:var(--err-dim);color:var(--text)}.add-duo{border:1px solid var(--border-solid);width:100%;color:var(--text);cursor:pointer;background:0 0;border-radius:30px;padding:.6rem 1rem;font-size:.85rem;transition:background .2s;display:block}.add-duo:hover{background:#2d2d2d}.checkbox-row{color:var(--text-muted);cursor:pointer;align-items:center;gap:.5rem;margin:1rem 0;font-size:.85rem;display:flex}.checkbox-row input{cursor:pointer;accent-color:var(--accent)}.dropzones{grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.25rem;display:grid}@media (width<=520px){.dropzones{grid-template-columns:1fr}}.dropzone{border:1px dashed var(--border-solid);text-align:center;background:var(--surface-raised);border-radius:8px;padding:1.25rem 1rem;transition:border-color .15s,background .15s;position:relative}.dropzone:hover{background:#2d2d2d}.dropzone:has(input:focus-visible){border-color:var(--accent);background:var(--surface-focus)}.dropzone.has-file{border-style:solid;border-color:var(--accent)}.dropzone .tag{font-family:var(--sans);letter-spacing:.05em;text-transform:uppercase;color:var(--accent);margin-bottom:.5rem;font-size:.72rem;font-weight:600;display:block}.dropzone .hint{color:var(--text-muted);font-size:.8rem}.dropzone .filename{font-family:var(--mono);color:var(--text);word-break:break-all;margin-top:.35rem;font-size:.8rem;display:none}.dropzone input[type=file]{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}button.run{background:linear-gradient(135deg, var(--accent-start), var(--accent-end));color:#fff;cursor:pointer;border:none;border-radius:30px;width:100%;margin-top:1.5rem;padding:.8rem 1rem;font-size:.95rem;font-weight:700;transition:background .2s;box-shadow:0 4px 16px #26c4ff26}button.run:hover{background:linear-gradient(135deg, var(--accent-hover-start), var(--accent-hover-end))}button.run:focus-visible{outline:2px solid var(--text);outline-offset:2px}.error-banner{color:#f28b95;background:#dc35451f;border:1px solid #dc354566;border-radius:8px;margin-bottom:1.25rem;padding:.7rem .9rem;font-size:.85rem}.status{font-family:var(--sans);letter-spacing:.02em;border-radius:30px;align-items:center;gap:.5rem;margin-bottom:1.25rem;padding:.35rem .9rem;font-size:.8rem;font-weight:700;display:inline-flex}.status.ok{color:var(--ok-bright);background:#049b3d29}.status.err{color:#f28b95;background:#dc354524}.warning-banner{color:var(--gold);background:#ffc7001a;border:1px solid #ffc70059;border-radius:8px;margin-bottom:1.25rem;padding:.7rem .9rem;font-size:.85rem}pre.log{border:1px solid var(--border);font-family:var(--mono);color:#c7c7c7;white-space:pre-wrap;word-break:break-word;background:#0a0a0a;border-radius:8px;max-height:360px;padding:1rem;font-size:.76rem;overflow:auto}.actions{flex-wrap:wrap;gap:.75rem;margin-top:1.25rem;display:flex}.btn-download,.btn-secondary{border-radius:30px;padding:.65rem 1.3rem;font-size:.88rem;font-weight:700;text-decoration:none;display:inline-block}.btn-download{background:linear-gradient(135deg, var(--accent-start), var(--accent-end));color:#fff}.btn-download:hover{background:linear-gradient(135deg, var(--accent-hover-start), var(--accent-hover-end))}.btn-secondary{color:var(--text);border:1px solid var(--border-solid);background:0 0}.btn-secondary:hover{background:#2d2d2d}.footnote{color:var(--text-muted);margin-top:2rem;font-size:.78rem;line-height:1.6}.footnote code{font-family:var(--mono);background:var(--surface-raised);color:var(--accent);border-radius:4px;padding:.1rem .35rem}.version{color:var(--text-muted);font-family:var(--mono);opacity:.6;margin-top:.75rem;font-size:.7rem}.repo-links{gap:1rem;margin-top:.6rem;display:flex}.repo-links a{color:var(--text-muted);align-items:center;gap:.4rem;font-size:.75rem;text-decoration:none;transition:color .15s;display:flex}.repo-links a:hover{color:var(--text)}.repo-links .icon{width:14px;height:14px;display:flex}.repo-links .icon img{width:100%;height:100%}