.top-row{max-width:1200px;margin:0 auto 18px;display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
.info-card,.upload-card,.toolbar-card,.summary-card,.file-card,.merge-output-card{border:1px solid var(--border);background:var(--card-glass);border-radius:24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 16px 38px rgba(2,6,23,.06)}
.info-card{padding:22px;display:flex;flex-direction:column;justify-content:center}
.info-title{margin:0 0 10px;font-size:1.2rem;color:var(--text)}
.info-text{margin:0;color:var(--soft);line-height:1.75}
.info-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.info-tags span{padding:8px 12px;border-radius:999px;border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text);font-size:.8rem;font-weight:700}
.upload-card{padding:18px}
.upload-inner{min-height:240px;border:1.5px dashed rgba(99,102,241,.35);border-radius:22px;display:flex;align-items:center;justify-content:center;text-align:center;padding:28px 18px;flex-direction:column;gap:10px;background:radial-gradient(circle at top left, rgba(37,99,235,.14), transparent 36%),
    radial-gradient(circle at bottom right, rgba(124,58,237,.12), transparent 40%),
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.015));transition:border-color .25s ease, transform .18s ease, box-shadow .25s ease}
.upload-inner.dragover{border-color:rgba(99,102,241,.7);box-shadow:0 0 0 4px rgba(99,102,241,.12), 0 20px 40px rgba(37,99,235,.12);transform:translateY(-2px)}
.upload-icon{width:74px;height:74px;display:grid;place-items:center;border-radius:22px;font-size:2rem;border:1px solid var(--border);background:linear-gradient(135deg, rgba(37,99,235,.16), rgba(124,58,237,.16));box-shadow:0 16px 30px rgba(37,99,235,.12)}
.upload-inner h2{margin:2px 0 0;font-size:1.3rem;color:var(--text)}
.upload-inner p{margin:0;color:var(--soft)}
.upload-note{display:inline-flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:6px;color:var(--soft);font-size:.82rem}
.toolbar-wrap{max-width:1200px;margin:0 auto 18px}
.toolbar-card{padding:16px;position:sticky;top:72px;z-index:40}
.toolbar-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr .9fr .9fr;gap:10px}
.toolbar-field{display:flex;flex-direction:column;gap:6px}
.toolbar-field label{font-size:.78rem;font-weight:800;color:var(--text)}
.toolbar-field input,.toolbar-field select{width:100%;min-height:44px;border-radius:14px;border:1px solid var(--border);background:var(--input-bg);color:var(--text);padding:11px 12px;font-size:.9rem;outline:none}
.toolbar-field input:focus,.toolbar-field select:focus{border-color:var(--accent1);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.toolbar-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}
.toolbar-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}
.toolbar-badges{display:flex;flex-wrap:wrap;gap:8px}
.toolbar-badges span{padding:5px 10px;border-radius:999px;border:1px solid var(--border);background:rgba(255,255,255,.03);font-size:.73rem;color:var(--text)}
.toolbar-note{color:var(--soft);font-size:.76rem;line-height:1.55;flex:1;min-width:220px}
.progress-row{width:100%;display:flex;align-items:center;gap:12px;margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}
.progress-bar{flex:1;height:7px;border-radius:999px;overflow:hidden;background:rgba(148,163,184,.2)}
.progress-bar > div{width:0%;height:100%;background:linear-gradient(90deg,var(--accent1),var(--accent2));transition:width .22s ease}
#progressText{min-width:160px;text-align:right;color:var(--soft);font-size:.78rem}
.summary-wrap{max-width:1200px;margin:0 auto 18px;display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.summary-card{padding:16px}
.summary-card small{display:block;margin-bottom:6px;color:var(--soft);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}
.summary-card strong{display:block;color:var(--text);font-size:1.08rem}
.workspace{max-width:1200px;margin:0 auto 42px;display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
.files-panel,.output-panel{display:flex;flex-direction:column;gap:16px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;color:var(--soft);font-size:.86rem;margin-bottom:2px}
.files-list{display:grid;gap:14px}
.empty-state{text-align:center;padding:52px 22px;border:1px dashed var(--border);border-radius:20px;color:var(--soft);background:rgba(255,255,255,.02)}
.file-card{overflow:hidden;display:grid;grid-template-columns:190px 1fr;min-height:220px}
.file-preview{position:relative;border-right:1px solid var(--border);display:flex;align-items:center;justify-content:center;padding:14px;background:radial-gradient(circle at top left, rgba(37,99,235,.12), transparent 40%),
    radial-gradient(circle at bottom right, rgba(124,58,237,.12), transparent 40%),
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.015))}
.preview-box{width:100%;height:180px;border-radius:14px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#fff;box-shadow:0 10px 24px rgba(2,6,23,.12)}
.preview-box img{max-width:100%;max-height:100%;display:block;border-radius:12px}
.preview-fallback{width:100%;height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;color:#4b6365;font-weight:700;text-align:center;padding:14px}
.preview-fallback small{font-size:.75rem;color:#8aa19f;font-weight:600}
.file-badge{position:absolute;top:12px;left:12px;padding:6px 10px;border-radius:999px;font-size:.7rem;font-weight:800;color:#fff;letter-spacing:.02em;border:1px solid rgba(255,255,255,.14);box-shadow:0 10px 24px rgba(2,6,23,.14);background:linear-gradient(90deg,#0b6e75,#0e7c86)}
.file-order{position:absolute;bottom:12px;left:12px;min-width:34px;height:34px;border-radius:999px;display:grid;place-items:center;font-size:.8rem;font-weight:800;color:var(--text);background:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.65);box-shadow:0 10px 20px rgba(2,6,23,.1)}
.file-body{padding:16px;display:flex;flex-direction:column}
.file-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:12px}
.file-name{color:var(--text);font-weight:800;font-size:1rem;line-height:1.35;word-break:break-word}
.file-size{color:var(--soft);font-size:.78rem;white-space:nowrap}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}
.quick-chip{border:1px solid var(--border);background:rgba(255,255,255,.03);border-radius:14px;padding:10px}
.quick-chip small{display:block;font-size:.7rem;color:var(--soft);margin-bottom:4px}
.quick-chip strong{display:block;font-size:.83rem;color:var(--text);word-break:break-word}
.file-controls{display:grid;grid-template-columns:1.3fr .8fr .8fr;gap:10px;margin-top:auto}
.control-field{display:flex;flex-direction:column;gap:6px}
.control-field label{color:var(--soft);font-size:.75rem;font-weight:700}
.control-field input,.control-field select{min-height:42px;border-radius:12px;border:1px solid var(--border);background:var(--input-bg);color:var(--text);padding:10px 12px;outline:none;font-size:.88rem}
.control-field input:focus,.control-field select:focus{border-color:var(--accent1);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.file-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.drag-handle{cursor:grab}
.drag-handle:active{cursor:grabbing}
.sortable-ghost{opacity:.5}
.sortable-chosen{transform:scale(.995)}
.merge-output-card{padding:18px;position:sticky;top:72px}
.output-title{margin:0 0 10px;color:var(--text);font-size:1.15rem}
.output-text{margin:0 0 14px;color:var(--soft);line-height:1.7}
.output-grid{display:grid;gap:10px}
.output-line{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border-radius:16px;border:1px solid var(--border);background:rgba(255,255,255,.03)}
.output-line span{color:var(--soft);font-size:.84rem}
.output-line strong{color:var(--text);font-size:.92rem;text-align:right}
.output-actions{display:grid;gap:10px;margin-top:14px}
.output-tip{margin-top:14px;padding:14px;border-radius:16px;border:1px solid rgba(99,102,241,.18);background:linear-gradient(135deg, rgba(37,99,235,.08), rgba(124,58,237,.08));color:var(--soft);font-size:.82rem;line-height:1.65}
.status-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;border:1px solid var(--border);background:rgba(255,255,255,.03);color:var(--text);font-size:.78rem;font-weight:700}
.btn-chip.mini{min-height:38px;padding:8px 12px;font-size:.78rem}
.btn-chip.mini.danger{border-color:rgba(239,68,68,.26);background:rgba(239,68,68,.08);color:#ef4444}
@media (max-width:1180px){
.toolbar-grid{grid-template-columns:repeat(3,minmax(150px,1fr))}
.summary-wrap{grid-template-columns:repeat(3,1fr)}
.workspace{grid-template-columns:1fr}
.merge-output-card{position:relative;top:auto}
}
@media (max-width:920px){
.top-row{grid-template-columns:1fr}
.toolbar-card{top:64px}
.file-card{grid-template-columns:1fr}
.file-preview{min-height:240px;border-right:none;border-bottom:1px solid var(--border)}
.preview-box{height:210px}
.quick-grid{grid-template-columns:repeat(2,1fr)}
.file-controls{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
.toolbar-card{position:relative !important;top:auto !important}
.toolbar-grid{grid-template-columns:1fr}
.toolbar-actions{display:grid;grid-template-columns:1fr}
.toolbar-actions button{width:100%}
.toolbar-meta{flex-direction:column;align-items:flex-start}
.progress-row{flex-direction:column;align-items:stretch}
#progressText{min-width:auto;text-align:left}
.summary-wrap{grid-template-columns:1fr 1fr}
.quick-grid{grid-template-columns:1fr}
.file-controls{grid-template-columns:1fr}
}
@media (max-width:460px){
.summary-wrap{grid-template-columns:1fr}
.file-preview{min-height:200px}
.preview-box{height:170px}
}

/* page overrides */
/* Soft & clear */
.tool-app .top-row{margin-bottom:16px}
.tool-app .upload-inner{min-height:200px}
.tool-app .upload-inner p{color:var(--zl-muted)}
.tool-app .toolbar-card{position:static;padding:18px}
.tool-app .toolbar-field label,.tool-app .control-field label{font:500 14px var(--zl-font-head);color:var(--zl-ink)}
.tool-app .toolbar-field input,.tool-app .toolbar-field select,.tool-app .control-field input,.tool-app .control-field select{min-height:46px;border-radius:12px}
.tool-app .control-field input[aria-invalid="true"]{border-color:var(--zl-danger);box-shadow:0 0 0 3px color-mix(in srgb,var(--zl-danger) 18%,transparent)}
.tool-app .toolbar-actions,.tool-app .progress-row{border-top-color:var(--zl-line)}
.tool-app .toolbar-actions button{min-height:46px}
.tool-app .toolbar-note{margin:12px 0 0;color:var(--zl-muted);font-size:14px}
.tool-app #progressText{color:var(--zl-muted);font-size:14px}
.tool-app .summary-wrap{display:none}
.tool-app .workspace{margin-bottom:0}
.tool-app .panel-head{color:var(--zl-muted);font-size:14px}
.tool-app .file-card,.tool-app .merge-output-card{background:var(--zl-surface);border:1px solid var(--zl-line);border-radius:var(--zl-r);box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
.tool-app .file-card{grid-template-columns:170px 1fr;min-height:0}
.tool-app .file-preview{background:var(--zl-surface-2);border-right-color:var(--zl-line)}
.tool-app .preview-box{background:#fff;box-shadow:none;border:1px solid var(--zl-line);border-radius:8px;height:170px}
.tool-app .preview-box img{border-radius:0;transition:transform .2s ease}
.tool-app .preview-fallback{color:#4b6365}
.tool-app .file-order{background:var(--zl-surface);border:1px solid var(--zl-line);box-shadow:none;color:var(--zl-ink);font-family:var(--zl-font-head);font-weight:600;top:10px;bottom:auto;left:10px}
.tool-app .file-name{font:600 15px/1.35 var(--zl-font-head);color:var(--zl-ink)}
.tool-app .file-size{color:var(--zl-muted);font-size:14px}
.tool-app .quick-chip{background:var(--zl-surface-2);border-color:var(--zl-line);border-radius:12px;padding:8px 10px}
.tool-app .quick-chip small{color:var(--zl-muted);font-size:12.5px}
.tool-app .quick-chip strong{color:var(--zl-ink);font-size:15px}
.tool-app .btn-chip.mini{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:999px;border:1.5px solid var(--zl-line-2);background:var(--zl-surface);color:var(--zl-ink);font:500 14px var(--zl-font-head);cursor:pointer}
.tool-app .btn-chip.mini:hover:not(:disabled){border-color:var(--zl-accent)}
.tool-app .btn-chip.mini.danger{border-color:color-mix(in srgb,var(--zl-danger) 45%,transparent);background:var(--zl-surface);color:var(--zl-danger)}
.tool-app .merge-output-card{position:sticky;top:84px}
.tool-app .output-text{color:var(--zl-muted)}
.tool-app .output-line{background:var(--zl-surface-2);border-color:var(--zl-line);border-radius:12px}
.tool-app .output-line span{color:var(--zl-muted);font-size:14px}
.tool-app .output-line strong{color:var(--zl-ink);word-break:break-all}
.tool-app .output-actions button{width:100%}
.tool-app .status-pill{background:var(--zl-surface-2);border-color:var(--zl-line);color:var(--zl-ink);font-weight:500;font-size:14px}
.tool-app .empty-state{padding:40px 20px}
@media (max-width:1180px){.tool-app .merge-output-card{position:static}}
@media (max-width:920px){
  .tool-app .file-card{grid-template-columns:1fr}
  .tool-app .file-preview{min-height:0;border-right:0;border-bottom:1px solid var(--zl-line)}
  .tool-app .preview-box{height:160px;max-width:220px}
}
@media (max-width:680px){
  .tool-app .toolbar-actions{grid-template-columns:1fr 1fr}
  .tool-app .toolbar-actions #mergeBtn{grid-column:1/-1}
  .tool-app .quick-grid{grid-template-columns:1fr 1fr}
  .tool-app .file-actions{display:grid;grid-template-columns:1fr 1fr}
}
.tool-app .upload-icon{box-shadow:none;border:0}
.tool-app .file-actions{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.tool-app .file-actions .btn-chip.mini{padding:0 8px;width:100%}
@media (max-width:680px){.tool-app .file-actions{grid-template-columns:1fr 1fr}}
@media (max-width:680px) and (min-width:340px){
  .tool-app .toolbar-grid,.tool-app .toolbar-extra{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .tool-app .toolbar-field{min-width:0}
  .tool-app .toolbar-field select{text-overflow:ellipsis}
  .tool-app .color-row code{display:none}
  .tool-app .toolbar-grid > .toolbar-field:first-child{grid-column:1/-1}
}
@media (max-width:680px){.tool-app .quick-chip:nth-child(n+3){display:none}}