:root{
  --paper:#fbfbf8; --desk:#e9ece6; --ink:#1d2621; --muted:#5d6a62; --line:#cfd5cc;
  --word:#2b5fb4; --excel:#1e7a46; --img:#c2541b; --txt:#55605a; --merge:#7a3fa0;
  --cad:#0e7487; --tool:var(--word); --ok:#1e7a46; --err:#b3261e; --on-tool:#fff;
  color-scheme:light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#1f2522; --desk:#151917; --ink:#e8ece8; --muted:#a3ada7; --line:#38413c;
    --word:#7aa6f0; --excel:#5ec48a; --img:#f0915c; --txt:#b4bdb7; --merge:#c39be0; --cad:#5cc6d8;
    --ok:#5ec48a; --err:#f2857d; --on-tool:#101412; color-scheme:dark;
  }
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{
  margin:0; background:var(--desk); color:var(--ink);
  font-family:"Bricolage Grotesque",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:1.0625rem; line-height:1.6;
}
a{color:inherit}
:focus-visible{outline:3px solid var(--tool); outline-offset:2px}
.wrap{max-width:1040px; margin:0 auto; padding:0 1.25rem}

/* Cabeçalho */
.site-header{padding:1.25rem 0; border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:.75rem 1.5rem}
.brand{display:flex; align-items:center; gap:.6rem; text-decoration:none}
.brand img{display:block; height:auto}
.brand-mark{width:54px}
.brand-name{width:112px}
@media (max-width:560px){ .brand-mark{width:45px} .brand-name{width:96px} }
.site-nav{display:flex; gap:.25rem 1.25rem; font-size:.97rem}
.menu{position:relative}
.menu summary{list-style:none; cursor:pointer; color:var(--muted); padding:.35rem 0; border-bottom:2px solid transparent; display:flex; align-items:center; gap:.4rem; user-select:none}
.menu summary::-webkit-details-marker{display:none}
.menu summary::after{content:""; width:.42rem; height:.42rem; border-right:2px solid currentColor; border-bottom:2px solid currentColor; transform:translateY(-.15rem) rotate(45deg); transition:transform .15s}
.menu[open] summary::after{transform:translateY(.1rem) rotate(-135deg)}
.menu summary:hover,.menu[open] summary{color:var(--ink)}
.menu.current summary{color:var(--ink); border-bottom-color:var(--tool)}
.menu-panel{position:absolute; right:0; top:calc(100% + .5rem); z-index:20; min-width:14rem; display:grid; padding:.4rem;
  background:var(--paper); border:1px solid var(--line); border-radius:10px; box-shadow:0 10px 30px -12px rgb(0 0 0 / .35)}
.menu-panel a{text-decoration:none; color:var(--ink); padding:.5rem .7rem; border-radius:6px}
.menu-panel a:hover{background:var(--desk)}
.menu-panel a[aria-current="page"]{font-weight:700; background:var(--desk)}

/* Topo da página */
.hero{padding:2.5rem 0 1.75rem}
h1{font-size:clamp(2rem,5.5vw,3.3rem); line-height:1.05; letter-spacing:-.02em; font-weight:800; margin:0 0 .75rem; max-width:20ch}
.lede{color:var(--muted); max-width:58ch; margin:0}

/* Folha de papel com a ferramenta */
.sheet{
  background:var(--paper); border:2px solid var(--line); border-top:8px solid var(--tool); border-radius:6px 6px 14px 14px;
  padding:clamp(1.25rem,4vw,2.5rem);
}
.drop{
  position:relative; display:grid; place-items:center; align-content:center; text-align:center; gap:.5rem;
  min-height:220px; padding:2rem 1rem; border:2px dashed var(--line); border-radius:6px 28px 6px 6px;
  cursor:pointer; transition:border-color .15s, background .15s;
}
.drop::after{
  content:""; position:absolute; top:-2px; right:-2px; width:28px; height:28px;
  background:linear-gradient(225deg,var(--paper) 50%,var(--line) 50%); border-radius:0 26px 0 6px;
}
.drop.over,.drop:hover{border-color:var(--tool); background:color-mix(in srgb,var(--tool) 6%,transparent)}
.drop strong{font-size:1.2rem}
.drop span{color:var(--muted); font-size:.95rem}
.drop input{position:absolute; width:1px; height:1px; opacity:0; pointer-events:none}

.files{list-style:none; padding:0; margin:1.25rem 0 0; display:grid; gap:.5rem}
.files li{display:flex; align-items:center; gap:.75rem; padding:.6rem .8rem; border:1px solid var(--line); border-radius:8px}
.files .name{flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.files .size{color:var(--muted); font-size:.9rem; white-space:nowrap}
.mini{appearance:none; border:1px solid var(--line); background:transparent; color:var(--ink); border-radius:6px; width:2rem; height:2rem; cursor:pointer; font:inherit; line-height:1}
.mini:disabled{opacity:.35; cursor:default}

.actions{display:flex; flex-wrap:wrap; align-items:center; gap:1rem; margin-top:1.5rem}
.btn{
  appearance:none; border:none; background:var(--tool); color:var(--on-tool); font:inherit; font-weight:700;
  padding:.85rem 1.5rem; border-radius:10px; cursor:pointer; font-size:1.05rem;
}
.btn:disabled{opacity:.4; cursor:not-allowed}
.btn.ghost{background:transparent; color:var(--ink); border:2px solid var(--line)}
.status{font-size:.98rem; color:var(--muted)}
.status.ok{color:var(--ok)} .status.err{color:var(--err)}
progress{width:100%; height:8px; margin-top:1rem; accent-color:var(--tool)}
progress[hidden]{display:none}
.privacy{margin:1.5rem 0 0; padding-top:1rem; border-top:1px solid var(--line); color:var(--muted); font-size:.92rem}

/* Espaço para anúncios: invisível enquanto estiver vazio */
.ad-slot{margin:2rem 0}
.ad-slot:empty{display:none}

/* Texto de ajuda */
.content{max-width:68ch; padding:2.5rem 0 1rem}
.content h2{font-size:1.5rem; letter-spacing:-.01em; line-height:1.2; margin:2.25rem 0 .75rem}
.content h2:first-child{margin-top:0}
.content p,.content li{color:var(--ink)}
.content ol{padding-left:1.4rem}
.content li{margin:.35rem 0}

.faq details{border-bottom:1px solid var(--line); padding:.85rem 0}
.faq summary{cursor:pointer; font-weight:600; list-style-position:inside}
.faq details p{margin:.5rem 0 0; color:var(--muted)}

.related{padding:1rem 0 3rem}
.related h2{font-size:1.25rem; margin:0 0 .75rem}

/* Lista de ferramentas (página inicial e «outras ferramentas») */
.tool-list{list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:.75rem}
.tool-list a{
  display:block; height:100%; text-decoration:none; background:var(--paper);
  border:1px solid var(--line); border-left:6px solid var(--c); border-radius:4px 10px 10px 4px; padding:1rem 1.1rem;
}
.tool-list a:hover{border-color:var(--c)}
.tool-list strong{display:block; font-size:1.1rem}
.tool-list span{color:var(--muted); font-size:.95rem}

.info{display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:2rem; padding:3rem 0 1rem}
.info h2{margin:0 0 .35rem; font-size:1.1rem}
.info p{margin:0; color:var(--muted); font-size:.98rem}

.site-footer{border-top:1px solid var(--line); padding:2rem 0 2.5rem; color:var(--muted); font-size:.92rem; margin-top:2rem}
.site-footer .wrap{display:flex; flex-wrap:wrap; gap:1rem 2.5rem; justify-content:space-between}
.site-footer ul{list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:.25rem 1.25rem}
.site-footer a{text-decoration:none}
.site-footer a:hover{text-decoration:underline}

@media (max-width:560px){
  .drop{min-height:180px}
  .site-nav{font-size:.93rem}
  .menu-panel{position:fixed; left:1rem; right:1rem; top:auto; margin-top:.5rem; min-width:0}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* Opções das ferramentas */
.options{display:flex; flex-wrap:wrap; gap:1rem 1.5rem; align-items:flex-end; margin-top:1.25rem}
.options label{display:grid; gap:.35rem; font-size:.95rem; color:var(--muted)}
.options label.check{display:flex; align-items:center; gap:.5rem; color:var(--ink)}
.options select,.options input[type="text"]{font:inherit; color:var(--ink); background:var(--paper); border:1px solid var(--line); border-radius:8px; padding:.55rem .7rem; min-width:15rem; max-width:100%}
.options input[type="checkbox"],.options input[type="radio"]{width:1.1rem; height:1.1rem; accent-color:var(--tool); margin:0}
.options fieldset{border:none; padding:0; margin:0; display:grid; gap:.45rem}
.options legend{font-size:.95rem; color:var(--muted); padding:0; margin-bottom:.35rem}

/* Página inicial por grupos */
.tool-group{margin-bottom:2rem}
.tool-group h2{font-size:1.15rem; margin:0 0 .75rem; color:var(--muted); font-weight:600}

/* Rodapé por grupos */
.foot-cols{display:flex; flex-wrap:wrap; gap:1.25rem 3rem}
.foot-h{margin:0 0 .4rem; color:var(--ink); font-weight:600}
.site-footer .foot-cols ul{flex-direction:column; gap:.25rem}
.options input:disabled{opacity:.45}

/* Controlo deslizante e pré-visualização */
.options input[type="range"]{width:15rem; max-width:100%; accent-color:var(--tool)}
.preview{margin-top:1.25rem; border:1px solid var(--line); border-radius:10px; padding:1rem; text-align:center;
  background:repeating-conic-gradient(#d9ddd6 0 25%, #f4f5f2 0 50%) 0 0 / 20px 20px}
.preview canvas{display:block; margin:0 auto; max-width:100%; max-height:420px; width:auto; height:auto}
.preview-info{margin:.75rem 0 0; font-size:.9rem; color:#3c4741; background:rgb(255 255 255 / .85); display:inline-block; padding:.3rem .6rem; border-radius:6px}
.menu summary{white-space:nowrap}
.lab-short{display:none}
@media (max-width:560px){ .lab-long{display:none} .lab-short{display:inline} }