:root{
  --bg:#F3F5F4;--panel:#FFFFFF;--ink:#1B2A2E;--muted:#5C6B70;--line:#D8DEDC;--line-strong:#B9C2BF;
  --accent:#F2C230;--accent-hover:#E5B420;--accent-ink:#7A5A00;--accent-soft:#FBEDB8;
  --ctl:#7A8886; /* control borders: at least 3:1 against both backgrounds */
  --danger:#B3261E;--ok:#1F7A4D;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 "Trebuchet MS","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:inherit}
h1,h2{line-height:1.15;letter-spacing:-.015em;margin:0}
.muted{color:var(--muted)}
.hidden{display:none!important}
.err{color:var(--danger)}
.ok{color:var(--ok)}

/* header + footer */
.top{display:flex;justify-content:space-between;align-items:center;max-width:960px;margin:0 auto;padding:22px 24px 8px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;text-decoration:none}
.mark{width:28px;height:15px;background:var(--accent);border-left:5px solid var(--ink);border-radius:0 3px 3px 0}
.top nav a{font-size:15px;color:var(--muted);text-decoration:none}
.top nav a:hover{color:var(--ink);text-decoration:underline}
.foot{max-width:960px;margin:0 auto;padding:22px 24px 40px;border-top:1px solid var(--line);color:var(--muted);font-size:14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px}

/* layout */
.wrap{max-width:960px;margin:0 auto;padding:24px 24px 72px}
.wrap.narrow{max-width:760px}
.hero h1{font-size:clamp(30px,5vw,42px);max-width:14ch}
.lead{font-size:18px;color:var(--muted);max-width:52ch;margin:14px 0 0}
.search{display:block;width:100%;max-width:360px;margin:34px 0 0}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:14px}
.tile{position:relative;display:block;background:var(--panel);padding:20px 70px 24px 22px;text-decoration:none;border-left:5px solid transparent;transition:border-color .12s}
.tile:hover,.tile:focus-visible{border-left-color:var(--accent);outline:none}
.ico{display:flex;align-items:center;justify-content:center;flex:none;width:34px;height:34px;border-radius:8px;background:var(--accent-soft);color:var(--ink);transition:background .12s}
.ico svg{display:block;width:20px;height:20px}
.tile .ico{position:absolute;top:16px;right:16px;display:flex;font-size:0;line-height:0}
.tile:hover .ico,.tile:focus-visible .ico{background:var(--accent)}
.toolhead{display:flex;align-items:center;gap:12px;margin-top:16px}
.toolhead .ico{width:42px;height:42px;border-radius:10px}
.toolhead .ico svg{width:24px;height:24px}
.toolhead h1{margin:0}
.tile strong{display:block;font-size:19px;margin-bottom:6px}
.tile .blurb{display:block;color:var(--muted);font-size:15px;line-height:1.45}
.tiles .empty{grid-column:1/-1;background:var(--panel);margin:0;padding:22px;color:var(--muted)}
.back{font-size:15px;color:var(--muted);text-decoration:none}
.back:hover{color:var(--ink);text-decoration:underline}
.wrap.narrow h1{font-size:clamp(26px,4vw,34px)}
.tool{margin-top:26px}

/* drop zone: the one loud element on each tool page */
.drop{position:relative;border:2px dashed var(--ctl);background:var(--panel);padding:44px 24px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.drop:hover{border-color:var(--ink)}
.drop:focus-visible{outline:3px solid var(--accent-ink);outline-offset:2px}
.drop.over{border-color:var(--accent-ink);background:var(--accent-soft)}
.drop strong{display:block;font-size:19px}
.drop span{color:var(--muted)}
.drop::before,.drop::after{content:"";position:absolute;width:20px;height:20px;border:4px solid var(--accent)}
.drop::before{top:-2px;left:-2px;border-right:0;border-bottom:0}
.drop::after{bottom:-2px;right:-2px;border-left:0;border-top:0}

/* form controls */
.controls{display:flex;flex-wrap:wrap;gap:16px 26px;margin:22px 0;align-items:flex-end}
.f{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--muted)}
.f.full{width:100%;margin-top:4px}
input[type=text],input[type=number],input[type=date],input[type=search],select,textarea{font:inherit;color:var(--ink);border:1px solid var(--ctl);background:var(--panel);padding:8px 10px;border-radius:4px;min-width:0;max-width:100%}
textarea{width:100%;resize:vertical}
.code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px}
input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid var(--accent-ink);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:8px;top:-60px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:4px;z-index:10;text-decoration:none}
.skip:focus{top:8px}
h1[tabindex="-1"]:focus{outline:none}
input[type=range]{width:220px;max-width:100%;accent-color:var(--accent-ink)}
.qv{font-weight:700;color:var(--ink)}
.btn{font:inherit;font-weight:700;border:1px solid var(--ink);background:var(--panel);color:var(--ink);padding:10px 16px;border-radius:4px;cursor:pointer}
.btn:hover{background:#EEF1F0}
.btn.primary{background:var(--accent);border-color:var(--accent)}
.btn.primary:hover{background:var(--accent-hover)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.small{font-weight:400;padding:4px 10px;font-size:14px}
.status{min-height:1.5em;font-size:15px;color:var(--muted);margin:8px 0 0}
.status.err{color:var(--danger)}
.status.ok{color:var(--ok)}

/* image compressor */
.result{background:var(--panel);border:1px solid var(--line);padding:20px;display:grid;grid-template-columns:170px 1fr;gap:22px;align-items:center}
.result img{width:100%;height:auto;border:1px solid var(--line);background:#fff}
.stats{font-size:17px}
.stats strong{font-size:24px}
.stats .saved{display:block;font-size:15px}
.dims{margin:6px 0 14px;font-size:14px}
@media (max-width:560px){.result{grid-template-columns:1fr}}

/* pdf merge */
.flist{list-style:none;padding:0;margin:18px 0 0;border:1px solid var(--line);background:var(--panel)}
.flist li{display:flex;align-items:center;gap:12px;padding:10px 14px;border-top:1px solid var(--line)}
.flist li:first-child{border-top:0}
.flist .n{width:22px;color:var(--muted);font-variant-numeric:tabular-nums}
.fname{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fsize{color:var(--muted);font-size:14px;white-space:nowrap}
.rowbtns{display:flex;gap:6px}
@media (max-width:560px){.flist li{flex-wrap:wrap}.rowbtns{width:100%;justify-content:flex-end}}

/* qr */
.qr-out img{display:none!important}
.qr-out canvas{display:block;width:min(100%,280px);height:auto;border:1px solid var(--line);background:#fff;padding:12px}

/* invoice */
.inv{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:28px;align-items:start}
@media (max-width:820px){.inv{grid-template-columns:1fr}}
.form{display:flex;flex-direction:column;gap:14px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.items{border:1px solid var(--line);background:var(--panel)}
.it{display:grid;grid-template-columns:minmax(0,1fr) 62px 96px 34px;gap:8px;padding:8px;border-top:1px solid var(--line);align-items:center}
.it:first-child{border-top:0}
.it.head{font-size:13px;color:var(--muted);padding:8px 8px 4px}
.it.foot{display:block}
.it input{width:100%;padding:6px 8px}
.paper{background:#fff;border:1px solid var(--line);padding:32px;font-size:14px;line-height:1.45}
.paper h2{font-size:28px;margin-bottom:2px}
.ph{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.pdates{text-align:right}
.pparties{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px}
.plabel{font-size:12px;color:var(--muted);margin-bottom:2px}
.paper table{width:100%;border-collapse:collapse;margin-top:22px}
.paper th,.paper td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.paper th{font-size:12px;color:var(--muted);font-weight:400}
.paper th:not(:first-child),.paper td:not(:first-child){text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.tot{display:flex;justify-content:flex-end;margin-top:8px}
.tot table{width:auto;min-width:260px;margin-top:0}
.tot td{border-bottom:0;padding:5px 6px}
.tot tr.grand td{font-weight:700;font-size:16px;border-top:2px solid var(--ink);padding-top:9px}
.pnotes{margin-top:26px;color:var(--muted)}

/* word counter */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:18px}
.stat{background:var(--panel);padding:14px 16px}
.stat b{display:block;font-size:26px;font-variant-numeric:tabular-nums}
.stat span{color:var(--muted);font-size:14px}

/* home sections + related links */
.cat{margin-top:36px}
.cat h2{font-size:20px;margin:0 0 10px}
.cat .tiles{margin-top:0}
.cats .empty{margin:24px 0 0;color:var(--muted)}
.related{margin:34px 0 0;font-size:15px;color:var(--muted);line-height:1.9}
.related a{margin-right:14px;white-space:nowrap}

/* pdf tools */
.fileinfo{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;margin:14px 0 0;font-size:15px}
.fileinfo strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.hint{font-size:14px;color:var(--muted);margin:14px 0 0}
.f.chk{flex-direction:row;align-items:center;gap:8px;padding-bottom:9px}
.f.chk input{width:18px;height:18px;margin:0}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:10px;margin-top:16px}
.thumb{position:relative;background:var(--panel);border:2px solid var(--ctl);padding:6px;cursor:pointer;text-align:center;font-size:12px;color:var(--muted);user-select:none}
.thumb.sel{border-color:var(--accent-ink);background:var(--accent-soft)}
.thumb .pg{aspect-ratio:1;display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);margin-bottom:4px;overflow:hidden}
.thumb .pg canvas{display:block;max-width:100%;max-height:100%;width:auto;height:auto;transition:transform .15s}
.thumb .ph{width:78%;height:100%;background:#fff}
.thumb .tb{display:flex;gap:4px;justify-content:center;margin-top:4px}
.thumb .tb .btn.small{padding:2px 8px;line-height:1.3}
.thumb.dragging{opacity:.35}
.thumb[draggable=true]{cursor:grab}
.thumb:hover{border-color:var(--ink)}
.thumb:focus-visible{outline:3px solid var(--accent-ink);outline-offset:2px}
.thumb.del{border-color:var(--danger);background:#FBE9E7}
.thumb.del .pg{opacity:.3}
.thumb.del::after{content:"Deleted";position:absolute;top:10px;left:10px;right:10px;background:var(--danger);color:#fff;font-size:11px;padding:2px 0}

/* password generator */
.pw-out{background:var(--panel);border:1px solid var(--line);padding:18px 20px;margin-top:4px;overflow-wrap:anywhere}
.pw{display:block;font-size:22px;line-height:1.4}
.strength{font-size:14px;color:var(--muted);align-self:center}
.strength b.ok{color:var(--ok)}.strength b.err{color:var(--danger)}

/* unit converter */
.conv{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:end;margin-top:4px}
.conv .f input,.conv .f select,.conv .res{width:100%}
.conv .res{display:block;font-size:22px;line-height:1.3;padding:6px 10px;background:var(--panel);border:1px solid var(--line);border-radius:4px;min-height:44px;color:var(--ink);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.conv .swap{align-self:end;margin-bottom:46px}
@media (max-width:560px){.conv{grid-template-columns:1fr}.conv .swap{margin:0;justify-self:start}}
.formula{margin:14px 0 0;font-size:15px}
.all{list-style:none;padding:0;margin:12px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:6px 18px;font-size:14px;color:var(--muted)}
.all b{color:var(--ink);font-variant-numeric:tabular-nums}

/* sign */
.sigpad{display:block;width:100%;max-width:600px;aspect-ratio:3/1;height:auto;background:#fff;border:2px dashed var(--ctl);touch-action:none;cursor:crosshair;margin-top:4px}
.sig-stage{position:relative;display:inline-block;max-width:100%;border:1px solid var(--line);background:#fff;line-height:0}
.sig-stage .preview{display:block;max-width:100%;height:auto}
.sig-overlay{position:absolute;top:0;left:0;cursor:move;touch-action:none;user-select:none;outline:1px dashed var(--accent-ink);outline-offset:2px;background:rgba(255,255,255,.01)}
.sig-date{position:absolute;pointer-events:none;color:#1a1a1a;line-height:1.2;font-family:Helvetica,Arial,sans-serif}

/* collate */
.pair{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:14px}
@media (max-width:600px){.pair{grid-template-columns:1fr}}
.pair h3{font-size:15px;margin:0 0 8px;color:var(--muted);font-weight:400}
.pair .drop{padding:26px 16px}

/* metadata */
.meta{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;margin-top:8px}
@media (max-width:600px){.meta{grid-template-columns:1fr}}
.meta .f input{width:100%}
.dates{margin:12px 0 0;font-size:14px}

/* completion panel, warnings, about page */
.done{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin-top:14px;padding:14px 16px;background:var(--panel);border:1px solid var(--ctl);border-left:5px solid var(--accent)}
.done strong{overflow-wrap:anywhere}
.done .muted{font-size:14px}
.warn{color:var(--danger);font-size:14px}
.fileinfo .warn{width:100%}
.about h2{font-size:20px;margin:28px 0 8px}
.about p,.about li{max-width:68ch}
.about ul{padding-left:20px}

/* crop, extracted images, text */
.crop-stage{position:relative;display:inline-block;max-width:100%;border:1px solid var(--ctl);background:#fff;line-height:0;overflow:hidden;touch-action:none;cursor:crosshair;margin-top:6px}
.crop-stage .preview{display:block;max-width:100%;height:auto}
.crop-box{position:absolute;border:2px solid var(--accent-ink);box-shadow:0 0 0 9999px rgba(27,42,46,.35);pointer-events:none}
.imgs{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-top:14px}
.imgcell{background:var(--panel);border:1px solid var(--line);padding:8px;text-align:center;font-size:12px;color:var(--muted)}
.imgcell img{display:block;width:100%;height:120px;object-fit:contain;background:#fff;margin-bottom:6px}
.imgcell span{display:block;margin-bottom:6px}
.counts{margin:10px 0 0;font-size:14px}
textarea[hidden]{display:none}


@media print{
  @page{margin:18mm}
  body{background:#fff}
  body *{visibility:hidden}
  .paper,.paper *{visibility:visible}
  .paper{position:absolute;left:0;top:0;width:100%;border:0;padding:0;font-size:13px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* static site: page copy under each tool, loading placeholder */
.seo{padding-top:8px}
.seo h2{font-size:20px;margin:30px 0 8px}
.seo p,.seo li,.seo dd{max-width:68ch}
.seo ol{padding-left:22px}
.seo dt{font-weight:700;margin-top:14px}
.seo dd{margin:4px 0 0;color:var(--muted)}
.tool .loading{color:var(--muted);margin:0}
.foot .build{flex-basis:100%;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
/* language switcher in the header */
.top nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
.langs{display:flex;gap:10px;font-size:14px}
.langs a{color:var(--muted);text-decoration:none}
.langs a:hover{color:var(--ink);text-decoration:underline}
.langs span[aria-current]{color:var(--ink);font-weight:700}

/* word to pdf: the rendered document, kept at true size so its layout can be measured */
.docx-wrap{margin-top:14px;max-height:520px;overflow:auto;border:1px solid var(--ctl);background:#DCE0DE;padding:16px}
.docx-stage section.docx{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.2);margin:0 auto 16px}
@media print{
  body.print-docx *{visibility:hidden}
  body.print-docx .docx-stage,body.print-docx .docx-stage *{visibility:visible}
  body.print-docx .docx-wrap{position:absolute;left:0;top:0;max-height:none;overflow:visible;border:0;padding:0;background:#fff}
  body.print-docx .docx-stage section.docx{box-shadow:none;margin:0;page-break-after:always}
}
html[lang="es"] .thumb.del::after{content:"Eliminada"}
html[lang="pt-BR"] .thumb.del::after{content:"Excluída"}