:root{color-scheme:dark;--bg:#0c0a09;--bg-warm:#1c1917;--card:rgba(28,25,23,0.92);--card-hover:rgba(41,37,36,0.95);--text:#fafaf9;--text-sub:#a8a29e;--accent:#f59e0b;--accent-soft:rgba(245,158,11,0.15);--accent-glow:rgba(245,158,11,0.08);--success:#34d399;--danger:#fb7185;--border:rgba(168,162,158,0.12);--border-focus:rgba(245,158,11,0.4);--radius:14px}*{box-sizing:border-box;margin:0;padding:0}body,html{min-height:100dvh;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.page{max-width:860px;margin:0 auto;padding:40px 20px 60px}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:32px}.header h1{font-size:clamp(1.35rem,2.4vw,1.8rem);font-weight:800;letter-spacing:-.02em;background:linear-gradient(135deg,var(--accent),#fbbf24);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-actions{display:flex;align-items:center;gap:8px}.mode-toggle{flex-shrink:0;border:1px solid var(--border);background:var(--bg-warm);color:var(--text-sub);font-size:.8rem;font-weight:600;padding:8px 14px;border-radius:10px;cursor:pointer;transition:border-color .15s,color .15s}.mode-toggle:hover{border-color:var(--border-focus);color:var(--text)}.restart-btn{flex-shrink:0;border:1px solid rgba(251,113,133,.3);background:rgba(251,113,133,.08);color:#fda4af;font-size:.8rem;font-weight:600;padding:8px 14px;border-radius:10px;cursor:pointer;transition:border-color .15s,background .15s}.restart-btn:hover{border-color:rgba(251,113,133,.5);background:rgba(251,113,133,.15)}.drop-zone{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:44px 24px;border:2px dashed rgba(168,162,158,.2);border-radius:var(--radius);background:var(--accent-glow);cursor:pointer;transition:border-color .15s,background .15s;margin-bottom:28px;text-align:center}.drop-zone:hover{border-color:var(--accent);background:var(--accent-soft)}.drop-zone h2{font-size:1.15rem;font-weight:700}.drop-zone p{color:var(--text-sub);font-size:.88rem}.drop-zone.has-file{border-style:solid;border-color:var(--accent);background:var(--accent-soft);padding:20px 24px}.step-label{display:flex;align-items:baseline;gap:10px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:10px}.bulk-hint{font-weight:500;text-transform:none;letter-spacing:0;font-size:.75rem;color:var(--text-sub)}.search{width:100%;border:1px solid var(--border);background:var(--bg-warm);color:var(--text);border-radius:10px;padding:10px 14px;font-size:.9rem;margin-bottom:14px;outline:none;transition:border-color .15s}.search:focus{border-color:var(--border-focus)}.grouped-formats{display:flex;flex-direction:column;gap:20px}.category-label{display:flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}.category-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.format-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));grid-gap:8px;gap:8px}.grouped-formats>.category-section:last-child .format-grid{margin-bottom:0}.format-card{--cat-color:var(--accent);display:flex;align-items:center;gap:10px;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:12px;padding:10px 12px;text-align:left;cursor:pointer;transition:border-color .12s,background .12s;font-size:.82rem;line-height:1.35}.format-card:hover{border-color:rgba(168,162,158,.3);background:var(--card-hover)}.format-card.selected{border-color:var(--cat-color);background:color-mix(in srgb,var(--cat-color) 14%,transparent)}.format-card .ext{flex-shrink:0;display:grid;place-items:center;width:40px;height:40px;border-radius:8px;background:var(--bg);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em}.format-card .label{overflow:hidden;min-width:0}.format-card .label .name{font-weight:600}.format-card .label .mime,.format-card .label .name{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.format-card .label .mime{color:var(--text-sub);font-size:.72rem}.summary{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--accent);border-radius:var(--radius);background:var(--accent-soft);margin-bottom:4px;flex-wrap:wrap}.summary .arrow{color:var(--accent);font-size:1.2rem;flex-shrink:0}.summary .tag-group{display:flex;flex-wrap:wrap;gap:6px}.summary .tag{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:8px;background:var(--bg);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.82rem;font-weight:700;text-transform:uppercase}.tag-remove{border:none;background:none;color:var(--text-sub);font-size:1rem;cursor:pointer;padding:0 0 0 2px;line-height:1}.tag-remove:hover{color:var(--danger)}.summary-meta{display:flex;align-items:center;gap:12px;margin-top:4px;margin-bottom:4px}.summary-meta p{color:var(--text-sub);font-size:.85rem}.collapsible-toggle{display:inline-flex;align-items:center;gap:6px;border:none;background:none;color:var(--text-sub);font-size:.82rem;font-weight:600;cursor:pointer;padding:10px 0;transition:color .12s}.collapsible-toggle:hover{color:var(--text)}.collapsible-toggle .chevron{display:inline-block;transition:transform .2s;font-size:.7rem}.collapsible-toggle .chevron.open{transform:rotate(90deg)}.convert-btn{display:block;width:100%;max-width:380px;margin:24px auto 0;border:0;border-radius:var(--radius);padding:16px 28px;font-size:1.1rem;font-weight:800;letter-spacing:-.01em;color:var(--bg);background:linear-gradient(135deg,#f59e0b,#fbbf24);cursor:pointer;transition:opacity .12s,transform 80ms;box-shadow:0 0 40px rgba(245,158,11,.18)}.convert-btn:hover{transform:translateY(-1px)}.convert-btn:active{transform:translateY(0)}.convert-btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}.change-link{border:none;background:none;color:var(--text-sub);font-size:.82rem;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:0}.change-link:hover{color:var(--text)}.change-format-link{border:none;background:none;color:var(--accent);font-size:.82rem;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:0;font-weight:600}.change-format-link:hover{color:#fbbf24}.results-section{text-align:center}.results-title{font-size:1.4rem;font-weight:800;margin-bottom:6px;background:linear-gradient(135deg,var(--success),#6ee7b7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.results-path{color:var(--text-sub);font-size:.82rem;margin-bottom:20px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.results-list{gap:14px;max-width:600px;margin:0 auto}.result-card,.results-list{display:flex;flex-direction:column}.result-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;text-align:left}.result-preview{width:100%;background:var(--bg);display:flex;justify-content:center;align-items:center;overflow:hidden;border-bottom:1px solid var(--border)}.result-preview img{object-fit:contain}.result-preview img,.result-preview video{max-width:100%;max-height:360px;display:block}.result-preview audio{width:100%;padding:16px}.result-preview iframe{width:100%;height:360px;border:none;background:#fff}.text-preview-loading{padding:20px;color:var(--text-sub);font-size:.85rem}.text-preview-content{width:100%;max-height:300px;overflow:auto;margin:0;padding:14px 16px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.78rem;line-height:1.5;color:var(--text-sub);white-space:pre-wrap;word-break:break-word}.result-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px}.result-info{display:flex;flex-direction:column;min-width:0}.result-name{font-weight:600;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.result-size{font-size:.78rem;color:var(--text-sub)}.download-btn{flex-shrink:0;border:1px solid rgba(52,211,153,.35);background:rgba(52,211,153,.1);color:var(--success);font-size:.82rem;font-weight:700;padding:8px 16px;border-radius:10px;cursor:pointer;transition:background .12s,border-color .12s}.download-btn:hover{background:rgba(52,211,153,.2);border-color:rgba(52,211,153,.55)}.download-all-btn{display:block;margin:16px auto 0;border:0;border-radius:var(--radius);padding:12px 24px;font-size:.95rem;font-weight:700;color:var(--bg);background:linear-gradient(135deg,var(--success),#6ee7b7);cursor:pointer;transition:transform 80ms}.download-all-btn:hover{transform:translateY(-1px)}.restart-btn-large{display:block;margin:20px auto 0;border:1px solid var(--border);background:var(--bg-warm);color:var(--text-sub);font-size:.9rem;font-weight:600;padding:12px 28px;border-radius:var(--radius);cursor:pointer;transition:color .15s,border-color .15s}.restart-btn-large:hover{color:var(--text);border-color:var(--border-focus)}.footer{margin-top:40px;padding-top:20px;border-top:1px solid var(--border);color:var(--text-sub);text-align:center;font-size:.85rem;line-height:1.6}.footer a{color:var(--accent);text-decoration:none}.footer a:hover{text-decoration:underline}.popup-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.6);display:grid;place-items:center;z-index:100}.popup{width:min(92vw,480px);background:var(--bg-warm);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center}.popup h4{margin:0 0 10px;font-size:1.05rem}.popup p{margin:0;color:var(--text-sub);font-size:.9rem}.popup .popup-btn{margin-top:16px;border:0;border-radius:10px;background:var(--accent);color:var(--bg);font-weight:700;padding:10px 20px;cursor:pointer;font-size:.9rem}.route-pipeline{margin:14px 0 4px}.route-steps{display:flex;align-items:flex-start;justify-content:center;flex-wrap:wrap;gap:4px 0}.route-step-wrapper{display:flex;align-items:center;gap:6px}.route-arrow{color:var(--text-sub);font-size:.9rem;flex-shrink:0;opacity:.45}.route-arrow--done{color:var(--success);opacity:1}.route-node{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 12px;border-radius:8px;border:1.5px solid var(--border);background:var(--bg);min-width:52px;transition:border-color .2s,background .2s}.route-node--pending{opacity:.45}.route-node--active{border-color:var(--accent);background:var(--accent-soft);animation:pulse-glow 1.2s ease-in-out infinite}.route-node--done{border-color:var(--success);background:rgba(52,211,153,.1)}.route-node--failed{border-color:var(--danger);background:rgba(251,113,133,.1)}@keyframes pulse-glow{0%,to{box-shadow:0 0 0 0 rgba(245,158,11,.15)}50%{box-shadow:0 0 12px 2px rgba(245,158,11,.3)}}.route-node-format{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em}.route-node--active .route-node-format{color:var(--accent)}.route-node--done .route-node-format{color:var(--success)}.route-node--failed .route-node-format{color:var(--danger)}.route-node-handler{font-size:.62rem;color:var(--text-sub);max-width:80px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.route-message{margin-top:12px;font-size:.78rem;color:var(--text-sub)}.route-stats{margin-top:4px;font-size:.72rem;opacity:.7}.empty,.route-stats{color:var(--text-sub)}.empty{text-align:center;padding:32px 16px;font-size:.9rem}@media (max-width:600px){.header{flex-direction:column;align-items:flex-start}.header-actions{width:100%;justify-content:flex-end}.format-grid{grid-template-columns:1fr}.summary,.summary-meta{flex-direction:column;align-items:flex-start}.result-row{flex-direction:column;align-items:stretch}}