/* Tool-only layout: shared Template Party shell is left unchanged. */
.pdf-merge-page{--tool-radius:8px;--tool-border:#dce4e7;--tool-muted:#64757c;--tool-surface:#f5f7f8;--tool-shadow:0 2px 8px rgb(20 55 65 / .045);--tool-transition:150ms ease;--tool-accent:#9a5047;--tool-accent-soft:#fcf5f3}
.pdf-merge-page .tool-shell{padding:1.75rem var(--content-space) 3rem;color:var(--primary-color)}
.pdf-merge-page .tool-heading{margin-bottom:1.5rem}
.pdf-merge-page .tool-eyebrow{color:#9a5047;font-size:.85rem;font-weight:700}
.pdf-merge-page h1{font-size:2.25rem;line-height:1.5;margin:.25rem 0 .6rem}
.pdf-merge-page .tool-heading p{margin:0;font-size:1rem;line-height:1.9}
.pdf-merge-page .tool-layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,1fr);gap:2rem;align-items:start}
.pdf-merge-page .merge-workspace{min-width:0;padding:0;margin:0}
.pdf-merge-page .tool-copy{grid-column:1;grid-row:2}
.pdf-merge-page .tool-sidebar{grid-column:2;grid-row:1/span 2;min-width:0}
.pdf-merge-page .drop-zone{border:1.5px dashed #caa69f;background:var(--tool-accent-soft);border-radius:var(--tool-radius);padding:2.5rem 1.5rem;text-align:center;transition:border-color var(--tool-transition),background var(--tool-transition)}
.pdf-merge-page .drop-zone:hover{border-color:var(--tool-accent);background:#fcf1ee}
.pdf-merge-page .drop-zone.is-over{border-color:#9a5047;background:#faeeec}
.pdf-merge-page .drop-zone h2{display:block;font-size:1.2rem;font-weight:700;line-height:1.6;margin:1rem 0 .35rem}
.pdf-merge-page .drop-zone p{margin:.5rem 0}
.pdf-merge-page .drop-mark{display:inline-flex;padding:1rem;color:#9a5047;background:#f5e5e1;border-radius:var(--tool-radius)}
.pdf-merge-page .drop-mark svg{width:40px;height:40px}
.pdf-merge-page svg{display:block;width:22px;height:22px;flex:none}
.pdf-merge-page .drop-hint{font-size:.85rem;color:var(--tool-muted)}
.pdf-merge-page .tool-button,.pdf-merge-page .icon-button{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;min-height:44px;border:1px solid var(--tool-border);border-radius:var(--tool-radius);padding:.75rem 1.1rem;background:#fff;color:var(--primary-color);font:inherit;font-size:.9rem;font-weight:600;text-decoration:none;cursor:pointer;transition:background var(--tool-transition),border-color var(--tool-transition),box-shadow var(--tool-transition),color var(--tool-transition)}
.pdf-merge-page .primary{background:#216f6b;border-color:#216f6b;color:#fff;box-shadow:0 2px 4px rgb(33 111 107 / .12);min-height:48px}
.pdf-merge-page .tool-button:hover:not(:disabled){border-color:#216f6b;background:#edf6f3}
.pdf-merge-page .primary:hover:not(:disabled){background:#185b58;color:#fff}
.pdf-merge-page :is(button,a):focus-visible{outline:3px solid #9a5047;outline-offset:3px}
.pdf-merge-page button:disabled{opacity:.5;cursor:not-allowed}
.pdf-merge-page .icon-button{width:44px;height:44px;padding:0}
.pdf-merge-page .icon-button:hover:not(:disabled){background:#edf6f3;border-color:#bdd6d2;color:#216f6b}
.pdf-merge-page .danger:hover:not(:disabled),.pdf-merge-page .danger:focus-visible{color:#9c3f36;border-color:#e4beb8;background:#fcf0ee}
.pdf-merge-page #reset-pdfs{border-color:transparent;background:transparent;color:var(--tool-muted);font-weight:400}
.pdf-merge-page .editor-toolbar{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-bottom:1.25rem}
.pdf-merge-page .editor-toolbar p{flex:1 1 140px;margin:0;font-size:.9rem}
.pdf-merge-page .pdf-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.1rem;min-height:80px}
.pdf-merge-page .pdf-file{min-width:0;border:1px solid var(--tool-border);border-radius:var(--tool-radius);padding:.85rem;background:#fff;box-shadow:var(--tool-shadow);transition:border-color var(--tool-transition),box-shadow var(--tool-transition),background var(--tool-transition)}
.pdf-merge-page .pdf-file:hover,.pdf-merge-page .pdf-file:focus-within{border-color:#c9b4ae;box-shadow:0 3px 12px rgb(20 55 65 / .07)}
.pdf-merge-page .pdf-file.is-target{border-color:#9a5047;background:#fcf1ee;box-shadow:0 0 0 2px #ecd5d0}
.pdf-merge-page .pdf-file.is-dragging{opacity:.65;border-color:#9a5047}
.pdf-merge-page .file-top{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:#52656d;margin-bottom:.5rem}
.pdf-merge-page .drag-handle{cursor:grab;border-color:transparent;background:transparent;color:#7e8b90}
.pdf-merge-page .drag-handle:active{cursor:grabbing}
.pdf-merge-page .thumbnail-button{display:flex;align-items:center;justify-content:center;width:100%;height:200px;border:1px solid #e9edef;border-radius:6px;background:#f2f4f5;cursor:zoom-in;padding:.65rem}
.pdf-merge-page .thumbnail-button img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;box-shadow:0 2px 5px rgb(20 40 50 / .12)}
.pdf-merge-page .pdf-file h3{font-size:1rem;font-weight:700;line-height:1.6;margin:.9rem 0 .25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pdf-merge-page .file-meta{font-size:.75rem;line-height:1.6;margin:0 0 .6rem;color:#52656d}
.pdf-merge-page .file-controls{display:flex;flex-wrap:wrap;gap:4px;border-top:1px solid #edf0f2;padding-top:.65rem}
.pdf-merge-page .file-controls .icon-button{width:40px;min-height:44px;border-color:transparent;background:transparent}
.pdf-merge-page .file-controls [data-move]{color:#84939a}
.pdf-merge-page .file-controls .danger{margin-left:auto}
.pdf-merge-page .merge-controls{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-top:1.5rem;padding:1.25rem;border:1px solid #dce9e6;border-radius:var(--tool-radius);background:#f5f9f8}
.pdf-merge-page #merge-count{font-size:1rem;font-weight:700;margin-bottom:.3rem}
.pdf-merge-page .merge-controls .primary{padding-inline:1.5rem;font-size:1rem}
.pdf-merge-page .merge-controls p{font-size:.85rem;margin:0}
.pdf-merge-page .privacy-line{display:flex;align-items:flex-start;gap:.8rem;font-size:.85rem;line-height:1.9;padding:1rem .25rem;margin:1rem 0 0;color:var(--tool-muted)}
.pdf-merge-page .privacy-line>span{display:flex;padding:.6rem;background:#edf6f3;color:#216f6b;border-radius:var(--tool-radius)}
.pdf-merge-page .privacy-line strong{display:block;font-weight:600;color:var(--primary-color);margin-bottom:.15rem}
.pdf-merge-page .privacy-line p{margin:0}
.pdf-merge-page .tool-status{font-size:.85rem;line-height:1.8;margin:.75rem 0 0}
.pdf-merge-page .tool-errors{border-left:3px solid #9a5047;background:#fcf1ee;padding:1rem;font-size:.9rem;line-height:1.9;margin-top:1rem;overflow-wrap:anywhere}
.pdf-merge-page .tool-errors p{margin:.3rem 0}
.pdf-merge-page .merge-result{padding:1.5rem;border:1px solid #bddbd4;border-radius:var(--tool-radius);background:#f4faf8;margin-top:1rem}
.pdf-merge-page .merge-result h2{display:flex;flex-direction:row;gap:.6rem;align-items:center;font-size:1.2rem;margin:0 0 .5rem}
.pdf-merge-page .merge-result p{font-size:.85rem;margin:.5rem 0 1rem;overflow-wrap:anywhere}
.pdf-merge-page .tool-copy section{margin:0 0 2rem;padding:0}
.pdf-merge-page .tool-copy h2,.pdf-merge-page .related-pdfs h2{font-size:1.25rem;line-height:1.6;margin:0 0 .75rem}
.pdf-merge-page .tool-copy p,.pdf-merge-page .tool-copy li{font-size:.95rem;line-height:1.9}
.pdf-merge-page .tool-copy ol,.pdf-merge-page .tool-copy ul{padding-left:1.5rem}
.pdf-merge-page .tool-copy .usage-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.25rem;list-style:none;padding:0;margin:1.25rem 0 0;counter-reset:usage}
.pdf-merge-page .usage-steps li{counter-increment:usage;border-top:2px solid #dce9e6;padding-top:.85rem;font-size:.85rem;color:var(--tool-muted)}
.pdf-merge-page .usage-steps li:before{content:counter(usage,decimal-leading-zero);display:block;font-size:1.2rem;font-weight:700;color:#216f6b;margin-bottom:.4rem}
.pdf-merge-page .usage-steps strong{display:block;font-size:.9rem;color:var(--primary-color);margin-bottom:.35rem}
.pdf-merge-page .tool-copy .handling-info{padding:1.25rem;background:#f5f9f8;border:1px solid #e1ece8;border-radius:var(--tool-radius)}
.pdf-merge-page .handling-info h2{display:flex;flex-direction:row;align-items:center;gap:.65rem}
.pdf-merge-page .handling-info h2 svg{color:#216f6b}
.pdf-merge-page .handling-info p{margin-bottom:0}
.pdf-merge-page .tool-copy .usage-notes p,.pdf-merge-page .tool-copy .usage-notes li{font-size:.85rem;color:var(--tool-muted)}
.pdf-merge-page .usage-notes h2{font-size:1.1rem;color:#52656d}
.pdf-merge-page .related-pdfs{padding:0;margin:1.75rem 0}
.pdf-merge-page .related-pdfs ul{list-style:none;margin:0;padding:0}
.pdf-merge-page .related-pdfs li{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.3rem;padding:.8rem 0;border-bottom:1px solid #d6e0e5;font-size:.85rem}
.pdf-merge-page .related-pdfs li span{font-size:.75rem;color:#52656d}
.pdf-merge-page .ad-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;border:1px dashed #b8c8cd;background:#f7f8f9;color:#52656d;text-align:center}
.pdf-merge-page .ad-placeholder small{font-size:.7rem}
.pdf-merge-page .sidebar-ad{min-height:250px}
.pdf-merge-page .wide-ad{min-height:200px;margin-top:1rem}
.pdf-merge-page dialog{width:min(960px,calc(100% - 2rem));max-height:calc(100dvh - 2rem);margin:auto;border:1px solid #b8c8cd;border-radius:6px;padding:1rem;color:var(--primary-color);box-sizing:border-box}
.pdf-merge-page dialog::backdrop{background:rgb(20 40 50 / .55)}
.pdf-merge-page .preview-heading{display:flex;gap:1rem;align-items:center;justify-content:space-between}
.pdf-merge-page .preview-heading h2{font-size:1rem;line-height:1.6;margin:0;overflow-wrap:anywhere;min-width:0}
.pdf-merge-page .preview-navigation{display:flex;align-items:center;justify-content:center;gap:1rem;margin:.75rem 0}
.pdf-merge-page .preview-surface{background:#edf1f3;padding:.75rem;text-align:center}
.pdf-merge-page #preview-canvas{display:block;max-width:100%;height:auto;margin:auto}
.pdf-merge-page #preview-status{font-size:.85rem;margin:.4rem}
.pdf-merge-page [hidden]{display:none}
@media(max-width:1100px){.pdf-merge-page .pdf-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1100px){.pdf-merge-page .tool-copy .usage-steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:999px){.pdf-merge-page .tool-layout{grid-template-columns:minmax(0,1fr)}.pdf-merge-page .tool-copy{grid-row:auto}.pdf-merge-page .tool-sidebar{grid-column:1;grid-row:auto}.pdf-merge-page .tool-sidebar{display:flex;flex-direction:column;gap:1.5rem}.pdf-merge-page .related-pdfs{order:-1;margin:0}.pdf-merge-page .sidebar-ad{display:none}.pdf-merge-page .tool-copy{margin-top:1rem}}
@media(max-width:600px){.pdf-merge-page .tool-shell{padding-block:1.25rem 2rem}.pdf-merge-page h1{font-size:1.8rem}.pdf-merge-page .pdf-list{grid-template-columns:1fr}.pdf-merge-page .drop-zone{padding:1.4rem .75rem}.pdf-merge-page .drop-zone h2{font-size:1.05rem}.pdf-merge-page .merge-controls .primary{width:100%}.pdf-merge-page .thumbnail-button{height:200px}.pdf-merge-page .file-controls{gap:.4rem}.pdf-merge-page .file-controls .icon-button{width:44px}.pdf-merge-page dialog{padding:.75rem}.pdf-merge-page .tool-button{white-space:normal}}
@media(max-width:600px){.pdf-merge-page .thumbnail-button{height:240px}.pdf-merge-page .file-controls [data-move]{color:var(--primary-color);background:var(--tool-surface);border-color:var(--tool-border)}.pdf-merge-page .file-controls .icon-button{width:44px}.pdf-merge-page .tool-copy .usage-steps{grid-template-columns:1fr;gap:1rem}.pdf-merge-page .usage-steps li{padding-top:.75rem}.pdf-merge-page .merge-controls{padding:1rem}.pdf-merge-page .privacy-line{font-size:.8rem}.pdf-merge-page .handling-info{padding:1rem}}
@media(prefers-reduced-motion:reduce){.pdf-merge-page .tool-button,.pdf-merge-page .icon-button,.pdf-merge-page .pdf-file,.pdf-merge-page .drop-zone{transition:none}}