:root{--text:#64748b;--text-h:#0f172a;--bg:#f8fafc;--surface:#fff;--surface-2:#f1f5f9;--border:#e2e8f0;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-soft:#2563eb14;--warn:#b45309;--warn-bg:#f59e0b1a;--warn-border:#f59e0b47;--error:#dc2626;--error-bg:#dc262614;--error-border:#dc262640;--radius:12px;--radius-sm:8px;--shadow:0 1px 2px #0f172a0f, 0 8px 24px #0f172a0a;--sans:"Segoe UI", system-ui, -apple-system, sans-serif;--mono:"Cascadia Code", "SF Mono", ui-monospace, monospace;font:15px/1.5 var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased}@media (prefers-color-scheme:dark){:root{--text:#94a3b8;--text-h:#f1f5f9;--bg:#0b1120;--surface:#131c31;--surface-2:#1a2540;--border:#243049;--accent:#60a5fa;--accent-hover:#93c5fd;--accent-soft:#60a5fa1a;--warn:#fbbf24;--warn-bg:#f59e0b1a;--warn-border:#f59e0b38;--error:#f87171;--error-bg:#f871711a;--error-border:#f8717138;--shadow:0 1px 2px #0003, 0 8px 24px #0000002e;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}#root{box-sizing:border-box;width:720px;max-width:100%;min-height:100svh;margin:0 auto}body{margin:0}h1,h2,h3{color:var(--text-h);letter-spacing:-.02em;font-weight:600}p{margin:0}.app{-webkit-user-select:none;user-select:none;flex-direction:column;gap:28px;padding:48px 24px 64px;display:flex}.app input{-webkit-user-select:text;user-select:text}.top{text-align:center}.top .eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 10px;font-size:12px;font-weight:500}.top h1{margin:0 0 8px;font-size:28px;line-height:1.2}.top .desc{color:var(--text);margin:0;font-size:14px}.toast{border-radius:var(--radius-sm);align-items:center;gap:10px;padding:10px 14px;font-size:14px;display:flex}.toast.loading{background:var(--accent-soft);color:var(--text-h);border:1px solid var(--border)}.toast.error{background:var(--error-bg);color:var(--error);border:1px solid var(--error-border)}.toast.warn{background:var(--warn-bg);color:var(--warn);border:1px solid var(--warn-border);font-size:13px;line-height:1.5}.spinner{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;flex-shrink:0;width:14px;height:14px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.upload{cursor:pointer;caret-color:#0000;padding:14px 16px;transition:background .15s}.upload:hover,.upload.drag{background:var(--surface-2)}.upload.filled .upload-action{color:var(--accent)}.upload-inner{justify-content:space-between;align-items:center;gap:12px;min-width:0;display:flex}.upload-inner.empty{gap:8px}.upload-main{flex:1;align-items:baseline;gap:10px;min-width:0;display:flex}.upload-label{color:var(--text);flex-shrink:0;font-size:12px}.upload-name{color:var(--text-h);text-overflow:ellipsis;white-space:nowrap;font-size:14px;overflow:hidden}.upload-action{flex-shrink:0;font-size:13px;font-weight:500}.upload-prompt{color:var(--text-h);font-size:14px}.upload-types{color:var(--text);font-size:12px;font-family:var(--mono)}.upload-meta{color:var(--text);flex-direction:column;gap:10px;padding:0 16px 14px;font-size:13px;display:flex}.meta-chips{flex-wrap:wrap;gap:6px;display:flex}.chip{background:var(--surface-2);border:1px solid var(--border);font-family:var(--mono);color:var(--text-h);white-space:nowrap;border-radius:6px;padding:3px 8px;font-size:12px}.warn{border-radius:var(--radius-sm);color:var(--warn);background:var(--warn-bg);border:1px solid var(--warn-border);margin:0;padding:8px 10px;font-size:12px;line-height:1.5}.settings{border-top:1px solid var(--border);flex-direction:column;gap:14px;padding:16px;display:flex}.setting-block{flex-direction:column;gap:8px;display:flex}.setting-label{color:var(--text);font-size:12px}.format-tabs{grid-template-columns:1fr 1fr;gap:8px;display:grid}.format-tab{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text-h);cursor:pointer;flex-direction:column;align-items:flex-start;gap:2px;padding:10px 12px;transition:border-color .15s,background .15s;display:flex}.format-tab:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}.format-tab.active{border-color:var(--accent);background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}.format-tab:disabled{opacity:.5;cursor:not-allowed}.format-name{font-size:14px;font-weight:600}.format-ext{font-size:11px;font-family:var(--mono);color:var(--text)}.setting-row{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}@media (width<=520px){.setting-row{grid-template-columns:1fr 1fr}}.field{color:var(--text);flex-direction:column;gap:5px;font-size:12px;display:flex}.field input,.field select{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text-h);font-size:14px;font-family:var(--mono);box-sizing:border-box;width:100%;padding:8px 10px}:is(.field input,.field select)::placeholder{color:var(--text);opacity:.6}:is(.field input,.field select):focus-visible{outline:2px solid var(--accent);outline-offset:1px}:is(.field input,.field select):disabled{opacity:.5}.field select{cursor:pointer}.field select:disabled{cursor:not-allowed}.field-hint{color:var(--text);margin:-6px 0 0;font-size:11px}.footer{gap:8px;padding:0 16px 16px;display:flex}.btn{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text-h);cursor:pointer;padding:9px 18px;font-size:14px;font-weight:500;transition:background .15s,border-color .15s}.btn:hover:not(:disabled){background:var(--surface-2)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.progress{padding:0 16px 14px}.progress-track{background:var(--surface-2);border-radius:2px;height:3px;overflow:hidden}.progress-bar{background:var(--accent);border-radius:2px;height:100%;transition:width .12s linear}.result-stats{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex-wrap:wrap;align-items:center;gap:12px;padding:12px 16px;display:flex}.result-stats-label{color:var(--text);flex-shrink:0;font-size:12px;font-weight:500}.preview{grid-template-columns:1fr 1fr;gap:12px;display:grid}@media (width<=560px){.preview{grid-template-columns:1fr}}.preview-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin:0;overflow:hidden}.preview-item figcaption{color:var(--text);border-bottom:1px solid var(--border);padding:10px 14px;font-size:12px;font-weight:500}.preview-item .preview-caption{justify-content:space-between;align-items:center;gap:8px;display:flex}.preview-item .preview-replay{color:var(--accent);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:2px 6px;font-size:12px;font-weight:500}.preview-item .preview-replay:hover{color:var(--accent-hover);background:var(--surface-2)}.preview-item img,.preview-item video{object-fit:contain;background:var(--surface-2);width:100%;max-height:280px;display:block}.debug-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.debug-header{border-bottom:1px solid var(--border);background:var(--surface-2);justify-content:space-between;align-items:center;padding:8px 12px;display:flex}.debug-toggle,.debug-clear{color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px 6px;font-size:12px}:is(.debug-toggle,.debug-clear):hover{color:var(--text-h);background:var(--surface)}.debug-log{max-height:220px;font-family:var(--mono);color:var(--text-h);white-space:pre-wrap;word-break:break-all;-webkit-user-select:text;user-select:text;margin:0;padding:12px 14px;font-size:11px;line-height:1.55;overflow:auto}