:root{--bg:#0f0f13;--sf:#1a1a24;--bd:#2a2a3a;--tx:#e4e4ef;--dm:#888899;--ac:#6c5ce7;--a2:#00cec9;--dn:#ff6b6b;--rd:10px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--tx);min-height:100vh}
.ctn{max-width:1150px;margin:0 auto;padding:24px 20px}
.hdr{display:flex;align-items:baseline;gap:12px;margin-bottom:6px;flex-wrap:wrap}
h1{font-size:1.6rem;font-weight:700} h1 span{color:var(--ac)}
.ver{font-size:.75rem;color:var(--dm);background:var(--sf);border:1px solid var(--bd);padding:2px 10px;border-radius:20px}
.sub{color:var(--dm);font-size:.9rem;margin-bottom:28px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
@media(max-width:768px){.grid{grid-template-columns:1fr}}

/* Right Panel Sticky */
.right-panel{position:sticky;top:24px;height:fit-content;}

.card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--rd);padding:20px}
.card+.card{margin-top:18px}
.card h2{font-size:1rem;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.card h2 .badge{font-size:.7rem;background:var(--ac);color:#fff;padding:2px 8px;border-radius:20px}
label{display:block;font-size:.82rem;color:var(--dm);margin-bottom:5px;font-weight:500}
textarea{width:100%;min-height:120px;background:var(--bg);color:var(--tx);border:1px solid var(--bd);border-radius:8px;padding:12px;font-size:.92rem;resize:vertical;font-family:inherit}
textarea:focus,select:focus,input:focus{outline:none;border-color:var(--ac)}
select,input[type=text],input[type=number]{width:100%;background:var(--bg);color:var(--tx);border:1px solid var(--bd);border-radius:8px;padding:9px 12px;font-size:.88rem}
.row{display:flex;gap:12px;margin-top:12px} .row>div{flex:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border:none;border-radius:8px;font-size:.92rem;font-weight:600;cursor:pointer;transition:all .15s}
.btn-p{background:var(--ac);color:#fff;width:100%;margin-top:18px} .btn-p:hover{opacity:.88} .btn-p:disabled{opacity:.4;cursor:not-allowed}
.btn-e{background:var(--a2);color:#000;width:100%;margin-top:12px} .btn-e:hover{opacity:.88} .btn-e:disabled{opacity:.4;cursor:not-allowed}
.btn-d{background:0 0;border:1px solid var(--bd);color:var(--tx);padding:8px 16px;font-size:.82rem;border-radius:6px;text-decoration:none} .btn-d:hover{border-color:var(--ac)}
.preview-wrap{position:relative;background:#000;border-radius:8px;overflow:hidden}
.preview-wrap canvas{width:100%;display:block}
.progress-bar{width:100%;height:6px;background:var(--bg);border-radius:3px;margin-top:12px;overflow:hidden}
.progress-bar .fill{height:100%;background:linear-gradient(90deg,var(--ac),var(--a2));width:0%;transition:width .3s;border-radius:3px}
.status{font-size:.82rem;color:var(--dm);margin-top:8px;min-height:1.2em} .status.error{color:var(--dn)}
.downloads{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.sgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.color-row{display:flex;align-items:center;gap:8px}
.color-row input[type=color]{width:36px;height:36px;border:none;border-radius:6px;cursor:pointer;background:0 0;padding:0}
.color-row input[type=text]{flex:1}
.srt-pre{margin-top:14px;max-height:140px;overflow-y:auto;background:var(--bg);border:1px solid var(--bd);border-radius:8px;padding:10px 14px;font-family:'Cascadia Code','Fira Code',monospace;font-size:.78rem;color:var(--dm);white-space:pre-wrap;line-height:1.5}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{padding:5px 12px;border-radius:6px;font-size:.78rem;cursor:pointer;border:1px solid var(--bd);background:0 0;color:var(--dm);transition:all .15s;white-space:nowrap}
.chip:hover{border-color:var(--ac);color:var(--tx)} .chip.active{background:var(--ac);border-color:var(--ac);color:#fff}
.format-note{font-size:.75rem;color:var(--dm);margin-top:6px;font-style:italic}

/* opacity slider */
.opacity-row{display:flex;align-items:center;gap:8px;margin-top:6px}
.opacity-row input[type=range]{flex:1;accent-color:var(--ac);height:4px;cursor:pointer}
.opacity-row .ov{font-size:.78rem;color:var(--dm);min-width:36px;text-align:right}

/* images/video */
.img-upload{margin-top:12px;border:2px dashed var(--bd);border-radius:8px;padding:14px;text-align:center;cursor:pointer;transition:border-color .15s;position:relative}
.img-upload:hover{border-color:var(--ac)}
.img-upload input{position:absolute;inset:0;opacity:0;cursor:pointer}
.img-upload .lbl{font-size:.82rem;color:var(--dm)} .img-upload .lbl b{color:var(--ac)}
.img-list{margin-top:10px;display:flex;flex-direction:column;gap:6px}
.img-item{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--bd);border-radius:8px;padding:8px 10px;transition:border-color .15s,opacity .2s}
.img-item:hover{border-color:var(--ac)} .img-item.dragging{opacity:.4;border-style:dashed} .img-item.drag-over{border-color:var(--a2);border-width:2px}
.img-item .handle{cursor:grab;color:var(--dm);font-size:1.1rem;user-select:none;padding:0 4px} .img-item .handle:active{cursor:grabbing}
.sort-btns{display:flex;flex-direction:column;gap:3px;flex-shrink:0}
.sort-btns button{background:var(--sf);border:1px solid var(--bd);color:var(--dm);border-radius:4px;font-size:.65rem;padding:3px 6px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.sort-btns button:hover{background:var(--ac);color:#fff;border-color:var(--ac)}
.img-item img{width:48px;height:36px;object-fit:cover;border-radius:4px;flex-shrink:0;cursor:pointer}
.img-item .info{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.img-item .name{font-size:.78rem;color:var(--dm);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.img-item .dur-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.img-item .dur-row input[type=number]{width:64px;padding:4px 6px;font-size:.8rem;text-align:center;border-radius:4px}
.img-item .dur-row input[type=range]{width:70px; height:24px; cursor:pointer; accent-color:var(--a2);}
.img-item .dur-row span{font-size:.75rem;color:var(--dm)}
.img-item .btn-icon{background:var(--sf); color:var(--tx); border:1px solid var(--bd); padding:4px 8px; font-size:0.75rem; border-radius:4px; cursor:pointer;}
.img-item .btn-icon:hover{background:var(--ac); border-color:var(--ac);}
.img-item .rm{color:var(--dn);cursor:pointer;border:none;background:0 0;font-size:1rem;padding:6px 10px;flex-shrink:0;border-radius:6px} .img-item .rm:hover{background:rgba(255,107,107,0.1)}
.timeline-bar{display:flex;height:24px;border-radius:6px;overflow:hidden;margin-top:8px;background:var(--bg);border:1px solid var(--bd);cursor:pointer;}
.timeline-bar .seg{display:flex;align-items:center;justify-content:center;font-size:.68rem;color:#fff;overflow:hidden;white-space:nowrap;transition:width .3s;pointer-events:none;}
.img-count{font-size:.78rem;color:var(--dm);margin-top:6px}

/* New Toggles */
.chk-row{display:flex;align-items:center;gap:8px;margin-top:10px}
.chk-row input{accent-color:var(--ac);width:16px;height:16px;cursor:pointer}
.chk-row label{margin:0;cursor:pointer;font-size:.82rem;color:var(--tx)}

/* Adv Settings Collapsible */
details.adv-set { margin-top: 18px; background: var(--bg); border: 1px solid var(--bd); border-radius: 8px; }
details.adv-set summary { padding: 12px 14px; font-weight: 600; font-size: 0.9rem; cursor: pointer; user-select: none; color: var(--tx); outline: none;}
details.adv-set summary:hover { color: var(--ac); }
.adv-content { padding: 14px; border-top: 1px solid var(--bd); display: flex; flex-direction: column; gap: 14px; }
.adv-section { border-bottom: 1px dashed var(--bd); padding-bottom: 14px; }
.adv-section:last-child { border-bottom: none; padding-bottom: 0; }

.inline-btn { background: var(--sf); color: var(--tx); border: 1px solid var(--bd); padding: 4px 10px; border-radius: 4px; cursor: pointer; font-size: 0.75rem; font-weight: bold;}
.inline-btn:hover { background: var(--ac); border-color: var(--ac); color: white;}
.inline-remove-btn { background: var(--dn); color: white; border: none; padding: 4px 10px; border-radius: 4px; cursor: pointer; font-size: 0.75rem; font-weight: bold;}
.inline-remove-btn:hover { opacity: 0.8; }
.thumb-preview { display: flex; align-items: center; gap: 10px; margin-top: 8px; flex-wrap:wrap;}
.thumb-preview img { height: 36px; border-radius: 4px; border: 1px solid var(--bd); object-fit: contain; cursor:pointer;}

/* Modal Preview */
.modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.85); z-index: 1000; align-items: center; justify-content: center; flex-direction: column; backdrop-filter: blur(5px);}
.modal.active { display: flex; }
.modal-content { max-width: 90%; max-height: 80vh; position:relative; }
.modal-content img, .modal-content video { max-width: 100%; max-height: 80vh; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
.modal-close { margin-top: 20px; background: var(--dn); color: #fff; border: none; padding: 10px 24px; border-radius: 8px; cursor: pointer; font-weight:bold; font-size:1rem;}
.modal-close:hover { opacity: 0.8; }