:root{
  --bg:#EDF0F4; --surface:#FFFFFF; --surface-2:#F5F7FA; --ink:#15203A; --muted:#566079; --line:#D3D9E3;
  --accent:#2F5BEA; --accent-ink:#FFFFFF; --accent-soft:#E3EAFE; --mark:#FFD84D;
  --pdf:#D8453B; --doc:#2F5BEA; --img:#17936A; --png:#6B4FD8; --err:#B3261E; --ok:#17804F;
  --display:'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --body:'Atkinson Hyperlegible', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0F1522; --surface:#172033; --surface-2:#1C263B; --ink:#E7EBF3; --muted:#9BA5BA; --line:#2B3650;
    --accent:#7C98FF; --accent-ink:#0F1522; --accent-soft:#223056; --mark:#E9C53A;
    --pdf:#F0675C; --doc:#7C98FF; --img:#3CC08D; --png:#9D86F5; --err:#FF8A80; --ok:#5ED39A;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0F1522; --surface:#172033; --surface-2:#1C263B; --ink:#E7EBF3; --muted:#9BA5BA; --line:#2B3650;
  --accent:#7C98FF; --accent-ink:#0F1522; --accent-soft:#223056; --mark:#E9C53A;
  --pdf:#F0675C; --doc:#7C98FF; --img:#3CC08D; --png:#9D86F5; --err:#FF8A80; --ok:#5ED39A;
  color-scheme:dark;
}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
img,canvas{max-width:100%}
a{color:var(--accent)}
:focus-visible{outline:3px solid var(--mark);outline-offset:2px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
[hidden]{display:none !important}

/* header */
.top{border-bottom:1px solid var(--line);background:var(--surface)}
.top .wrap{display:flex;align-items:center;gap:24px;min-height:62px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:800 1.25rem/1 var(--display);letter-spacing:-.01em}
.brand .sheet{width:26px;height:32px;font-size:8px;padding-bottom:4px}
.top nav{display:flex;gap:18px;margin-left:auto;flex-wrap:wrap}
.top nav a{color:var(--muted);text-decoration:none;font-weight:700;font-size:.95rem}
.top nav a:hover{color:var(--ink)}

/* file sheets: the recurring motif */
.sheet{--c:var(--pdf);position:relative;flex:none;width:38px;height:48px;background:var(--c);border-radius:4px;
  clip-path:polygon(0 0,calc(100% - 11px) 0,100% 11px,100% 100%,0 100%);
  display:flex;align-items:flex-end;justify-content:center;padding-bottom:6px;color:#fff;font:800 10px/1 var(--display);letter-spacing:.02em}
.sheet::after{content:"";position:absolute;top:0;right:0;width:11px;height:11px;background:rgba(255,255,255,.5);clip-path:polygon(0 0,0 100%,100% 100%)}
.sheet.sm{width:30px;height:38px;font-size:8px;padding-bottom:5px}
.c-pdf{--c:var(--pdf)} .c-doc{--c:var(--doc)} .c-img{--c:var(--img)} .c-png{--c:var(--png)}
.pair{display:flex;align-items:center;gap:6px;color:var(--muted);font-weight:700}

/* hero */
.hero{padding:56px 0 36px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:32px;align-items:center}
.hero h1{font:800 clamp(2.1rem,5.2vw,3.7rem)/1.02 var(--display);letter-spacing:-.025em;margin:0 0 18px;max-width:14ch}
.hero p.lead{color:var(--muted);font-size:1.12rem;max-width:52ch;margin:0 0 26px}
.search{position:relative;max-width:560px}
.search input{width:100%;font:inherit;font-size:1.08rem;padding:16px 18px;border:2px solid var(--ink);border-radius:10px;background:var(--surface);color:var(--ink)}
.search input::placeholder{color:var(--muted)}
.search input:focus{outline:none;box-shadow:0 0 0 4px var(--mark)}
.fan{position:relative;height:260px}
.fan .sheet{position:absolute;left:50%;top:50%;width:132px;height:170px;margin:-85px 0 0 -66px;font-size:21px;padding:16px 14px;align-items:flex-start;justify-content:flex-start;
  clip-path:polygon(0 0,calc(100% - 34px) 0,100% 34px,100% 100%,0 100%);border-radius:10px;
  animation:fan .9s cubic-bezier(.2,.8,.2,1) both}
.fan .sheet::after{width:34px;height:34px}
.fan .sheet:nth-child(1){--r:-14deg;--x:-150px;--y:20px}
.fan .sheet:nth-child(2){--r:-5deg;--x:-52px;--y:-4px;animation-delay:.06s}
.fan .sheet:nth-child(3){--r:5deg;--x:46px;--y:-2px;animation-delay:.12s}
.fan .sheet:nth-child(4){--r:14deg;--x:142px;--y:20px;animation-delay:.18s}
.fan .sheet{transform:translate(var(--x),var(--y)) rotate(var(--r))}
@keyframes fan{from{transform:translate(0,30px) rotate(0)}to{transform:translate(var(--x),var(--y)) rotate(var(--r))}}
@media (prefers-reduced-motion:reduce){.fan .sheet{animation:none}}

/* tool grid */
.cat{padding:22px 0 10px}
.cat-head{display:flex;align-items:baseline;gap:12px;margin:0 0 14px}
.cat h2{font:800 1.55rem/1.1 var(--display);letter-spacing:-.015em;margin:0}
.cat-head span{color:var(--muted);font-size:.95rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.card{display:flex;gap:14px;align-items:flex-start;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink)}
.card:hover{border-color:var(--ink)}
.card h3{font:700 1.08rem/1.2 var(--display);margin:2px 0 4px}
.card p{margin:0;color:var(--muted);font-size:.93rem;line-height:1.45}
.card .pair .sheet{width:30px;height:38px;font-size:8px;padding-bottom:5px}
mark{background:var(--mark);color:#15203A;border-radius:2px;padding:0 1px}
.empty-search{color:var(--muted);padding:18px 0}

/* info + faq */
.info{padding:40px 0 20px}
.info .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px}
.info h2{font:800 1.45rem/1.15 var(--display);margin:0 0 10px;letter-spacing:-.01em}
.info p{color:var(--muted);margin:0 0 12px;max-width:62ch}
.faq{padding:20px 0 40px}
.faq h2{font:800 1.45rem/1.15 var(--display);margin:0 0 12px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-bottom:8px;padding:0 16px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0}
.faq details p{margin:0 0 14px;color:var(--muted);max-width:70ch}
footer{border-top:1px solid var(--line);padding:26px 0 36px;color:var(--muted);font-size:.93rem}
footer .links{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:12px}
footer a{color:var(--muted)}

/* tool view */
.tool{padding:24px 0 48px}
.crumb{display:inline-block;margin-bottom:18px;font-weight:700;text-decoration:none}
.crumb::before{content:"‹ "}
.tool-head{display:flex;gap:18px;align-items:flex-start;margin-bottom:20px}
.tool-head h1{font:800 clamp(1.8rem,4vw,2.6rem)/1.05 var(--display);letter-spacing:-.02em;margin:0 0 8px}
.tool-head p{margin:0;color:var(--muted);max-width:62ch}
.tool-head .pair .sheet{width:44px;height:56px;font-size:11px;padding-bottom:7px}
.work{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px}
.drop{border:2px dashed var(--line);border-radius:12px;padding:30px 18px;text-align:center;cursor:pointer;background:var(--surface-2);transition:border-color .15s, background .15s}
.drop:hover,.drop.over{border-color:var(--accent);background:var(--accent-soft)}
.drop p{margin:10px 0 0;color:var(--muted);font-size:.95rem}
.btn{font:700 1rem/1 var(--body);border-radius:9px;padding:13px 20px;cursor:pointer;border:2px solid transparent;min-height:46px}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--ink)}
.btn:disabled{opacity:.45;cursor:not-allowed;filter:none}
.is-busy .btn,.is-busy .drop{pointer-events:none;opacity:.55}
.list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.list:empty{display:none}
.row{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2)}
.row .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700}
.row .sz{color:var(--muted);font-size:.9rem;white-space:nowrap}
.row canvas{width:42px;height:42px;border-radius:6px;object-fit:cover;background:var(--line);flex:none}
.row-btns{display:flex;gap:4px}
.row-btns button{width:34px;height:34px;border-radius:7px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-size:.95rem}
.row-btns button:hover{border-color:var(--ink)}
.opts{margin-top:18px;display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px 18px}
.opts:empty{display:none}
.field{display:flex;flex-direction:column;gap:6px;border:0;padding:0;margin:0;min-width:0}
.field label,.field legend{font-weight:700;font-size:.95rem;padding:0}
.field small{color:var(--muted);font-size:.85rem;line-height:1.35}
.field.wide{grid-column:1/-1}
input[type=text],input[type=number],select{font:inherit;font-size:1rem;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);width:100%}
input[type=range]{width:100%;accent-color:var(--accent)}
input[type=color]{width:46px;height:40px;padding:2px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.radio,.check{display:flex;gap:9px;align-items:center;font-weight:400 !important;cursor:pointer}
.radio input,.check input{accent-color:var(--accent);width:18px;height:18px}
.inline{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chips button{font:700 .88rem var(--body);padding:7px 11px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.chips button:hover{border-color:var(--ink)}
.actions{margin-top:18px;display:flex;gap:10px;flex-wrap:wrap}
.actions:empty{display:none}
.status{margin:14px 0 0;min-height:1.4em;color:var(--muted);font-size:.95rem}
.status:empty{margin:0;min-height:0}
.status[data-kind=error]{color:var(--err);font-weight:700}
.status[data-kind=ok]{color:var(--ok);font-weight:700}
.status[data-kind=busy]::before{content:"";display:inline-block;width:14px;height:14px;margin-right:8px;vertical-align:-2px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.result:empty{display:none}
.result{margin-top:16px}
.done{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:14px;border-radius:12px;border:2px solid var(--ok);background:var(--surface-2)}
.done .meta{display:flex;align-items:center;gap:12px;flex:1;min-width:200px}
.done strong{display:block;word-break:break-all}
.done span.info{color:var(--muted);font-size:.92rem}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;margin-bottom:14px}
.thumbs canvas{width:100%;height:auto;border:1px solid var(--line);border-radius:6px;background:#fff}
.table-wrap{overflow-x:auto;margin-bottom:14px}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
td.nm{white-space:normal;word-break:break-all}
.good{color:var(--ok);font-weight:700}
.howto{margin-top:30px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.howto h2{font:800 1.3rem/1.15 var(--display);margin:0 0 10px}
.howto ol{margin:0;padding-left:1.3em}
.howto li{margin-bottom:6px}
.howto p{color:var(--muted);margin:0 0 10px;max-width:62ch}
.related{margin-top:30px}
.related h2{font:800 1.3rem/1.15 var(--display);margin:0 0 12px}

/* image preview */
.preview{margin-top:16px;display:flex;justify-content:center;border-radius:10px;overflow:auto;padding:12px;background:var(--surface-2);border:1px solid var(--line)}
.checker{background-color:#fff;background-image:conic-gradient(#d9dde5 25%,#fff 0 50%,#d9dde5 0 75%,#fff 0);background-size:20px 20px}
.preview canvas{display:block;max-height:65vh;width:auto;cursor:crosshair}

/* word paper */
.paper-wrap{margin-top:16px;overflow-x:auto;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:16px;max-height:70vh;overflow-y:auto}
.paper{width:703px;margin:0 auto;background:#fff;color:#111;padding:0;font:15px/1.5 Calibri, Carlito, Arial, sans-serif}
.paper img{max-width:100%}
.paper table{border-collapse:collapse;width:100%}
.paper td,.paper th{border:1px solid #999;padding:4px 6px;white-space:normal}
.paper p{margin:0 0 10px}

/* pdf editor */
.edit-bar{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px 18px;align-items:flex-end}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;flex-wrap:wrap}
.seg button{font:700 .95rem var(--body);padding:10px 14px;border:0;background:var(--surface);color:var(--ink);cursor:pointer;border-right:1px solid var(--line)}
.seg button:last-child{border-right:0}
.seg button[aria-pressed=true]{background:var(--ink);color:var(--surface)}
.edit-bar .mini{display:flex;flex-direction:column;gap:4px;font-weight:700;font-size:.88rem}
.edit-bar .mini input[type=number]{width:84px}
.hint{flex-basis:100%;margin:0;color:var(--muted);font-size:.93rem}
.editor{grid-column:1/-1;margin-top:4px;overflow:auto;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:14px;display:flex;flex-direction:column;align-items:center;gap:14px;max-height:78vh}
.pg{position:relative;flex:none;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.pg canvas{display:block;max-width:none}
.ov{position:absolute;inset:0}
.tx{position:absolute;white-space:pre;line-height:1;color:transparent;caret-color:#000;outline:none;cursor:text;border-radius:1px}
.tx:hover{box-shadow:0 0 0 1px var(--accent)}
.tx:focus,.tx.changed{color:#000;background:#fff;box-shadow:0 0 0 2px var(--mark)}
.nt{position:absolute;white-space:pre;line-height:1.2;min-width:14px;outline:1px dashed var(--accent);cursor:text;font-family:Helvetica,Arial,sans-serif}
.nt:focus{outline:2px solid var(--mark)}
.wo{position:absolute;background:#fff;outline:1px dashed #8a93a6}
.editor[data-mode=add] .ov,.editor[data-mode=erase] .ov{cursor:crosshair}
.editor[data-mode=add] .tx:not(.changed),.editor[data-mode=erase] .tx,.editor[data-mode=erase] .nt{pointer-events:none}
.editor[data-mode=erase] .ov{touch-action:none}
.editor:empty{display:none}

/* unir PDF: tarjetas con vista previa */
.pdf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin-top:16px}
.pdf-card{position:relative;display:flex;flex-direction:column;gap:6px;padding:10px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;cursor:grab;min-width:0}
.pdf-card.dragging{opacity:.4}
.pdf-card.over{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.pdf-thumb{display:flex;align-items:center;justify-content:center;aspect-ratio:3/4;width:100%;padding:0;background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;cursor:zoom-in}
.pdf-thumb canvas{display:block;max-width:100%;max-height:100%;width:auto;height:auto}
.pdf-thumb:hover{border-color:var(--ink)}
.pdf-num{position:absolute;top:4px;left:4px;z-index:1;min-width:26px;height:26px;padding:0 6px;border-radius:13px;background:var(--ink);color:var(--surface);font:800 .85rem/26px var(--display);text-align:center}
.pdf-name{font-weight:700;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pdf-meta{color:var(--muted);font-size:.8rem;line-height:1.3}
.pdf-card .row-btns{justify-content:space-between;margin-top:auto}
.pdf-add{display:flex;align-items:center;justify-content:center;min-height:180px;border:2px dashed var(--line);border-radius:12px;background:transparent;color:var(--muted);font:700 .95rem var(--body);cursor:pointer;padding:10px}
.pdf-add:hover{border-color:var(--accent);color:var(--accent)}
.merged-prev{width:100%;margin-bottom:12px}
.merged-prev .thumbs{grid-template-columns:repeat(auto-fill,minmax(90px,1fr))}
dialog.viewer{width:min(860px,96vw);height:92vh;max-height:92vh;max-width:96vw;padding:0;border:0;border-radius:14px;background:var(--surface);color:var(--ink);overflow:hidden}
dialog.viewer[open]{display:flex;flex-direction:column}
dialog.viewer::backdrop{background:rgba(15,21,34,.62)}
.viewer-head{display:flex;align-items:center;gap:12px;padding:10px 12px 10px 18px;border-bottom:1px solid var(--line)}
.viewer-head strong{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.viewer-head span{color:var(--muted);font-size:.9rem;white-space:nowrap}
.viewer-head .btn{min-height:40px;padding:9px 14px}
.viewer-body{flex:1;overflow:auto;background:var(--surface-2);padding:16px;display:flex;flex-direction:column;align-items:center;gap:6px}
.viewer-page{margin:0 0 12px;max-width:100%}
.viewer-canvas{max-width:100%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.viewer-canvas canvas{display:block;width:100%;height:auto}
.viewer-page figcaption{text-align:center;color:var(--muted);font-size:.85rem;margin-top:6px}
@media (max-width:760px){
  body{font-size:16px}
  .hero{padding:34px 0 20px}
  .hero .wrap{grid-template-columns:1fr}
  .fan{height:150px;order:-1}
  .fan .sheet{width:74px;height:96px;margin:-48px 0 0 -37px;font-size:12px;padding:9px 8px;clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,0 100%)}
  .fan .sheet::after{width:20px;height:20px}
  .fan .sheet:nth-child(1){--x:-96px}.fan .sheet:nth-child(2){--x:-33px}.fan .sheet:nth-child(3){--x:30px}.fan .sheet:nth-child(4){--x:93px}
  .top nav{display:none}
  .tool-head .pair{display:none}
  .work{padding:14px}
}

.crumbs{font-size:.93rem;color:var(--muted);margin-bottom:16px}
.crumbs a{font-weight:700;text-decoration:none}
.crumbs span[aria-hidden]{margin:0 6px}
.tool .faq{padding:30px 0 0}
.card[hidden],.cat[hidden]{display:none !important}
noscript p{margin:14px 0 0;color:var(--err);font-weight:700}

/* colores extra de hojas */
.c-lnk{--c:#0E8A9A} .c-wa{--c:#1C9E4F}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .c-lnk{--c:#2FB3C4}:root:not([data-theme="light"]) .c-wa{--c:#34C26B}}
textarea{font:inherit;font-size:1rem;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);width:100%;resize:vertical}
input[type=email],input[type=url],input[type=tel]{font:inherit;font-size:1rem;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);width:100%}
input[type=file]{font:inherit;font-size:.92rem;max-width:100%}

/* QR y WhatsApp */
.qr-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(250px,.75fr);gap:26px;align-items:start}
.qr-fields{display:grid;gap:14px;margin-top:16px}
.phone{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:8px}
.qr-style{margin-top:16px;border:1px solid var(--line);border-radius:10px;padding:0 14px;background:var(--surface-2)}
.qr-style summary{padding:12px 0;font-weight:700;cursor:pointer}
.qr-style .opts2{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;padding-bottom:14px}
.qr-out{position:sticky;top:16px}
.qr-box{position:relative;display:flex;align-items:center;justify-content:center;aspect-ratio:1;background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:18px}
.qr-box canvas{display:none;width:100%;max-width:320px;height:auto;image-rendering:pixelated}
.qr-box.has canvas{display:block}
.qr-box.has .qr-empty{display:none}
.qr-empty{margin:0;color:var(--muted);text-align:center;font-size:.95rem;max-width:22ch}
.qr-caption{margin:8px 0 0;color:var(--muted);font-size:.85rem;word-break:break-all;text-align:center}
.qr-caption:empty{display:none}
.qr-out .actions{justify-content:center}
.linkbox input{font-weight:700;background:var(--surface-2)}
.wa-actions{margin-top:14px}

/* acortador */
.short-form{display:grid;gap:14px;position:relative}
.alias{display:flex;align-items:center;border:1px solid var(--line);border-radius:8px;background:var(--surface);overflow:hidden}
.alias span{padding:10px 0 10px 12px;color:var(--muted);white-space:nowrap;font-size:.95rem}
.alias input{border:0;border-radius:0;padding-left:2px;min-width:0}
.alias:focus-within{outline:3px solid var(--mark);outline-offset:2px}
.alias input:focus-visible{outline:none}
.short-result{margin-top:16px}
.short-result:empty{display:none}
.short-result .done a{color:var(--ink)}
.short-result .inline{gap:8px}
.recent{margin-top:26px}
.recent:empty{display:none}
.recent h2,.sign-panel h2.sub{font:800 1.15rem/1.2 var(--display);margin:0 0 10px}
.recent .note{color:var(--muted);font-size:.85rem}

/* firmar PDF */
.sign-panel{grid-column:1/-1;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.sign-panel h2.sub{margin:6px 0 0}
.sig-mode{display:flex;flex-direction:column;gap:10px;width:100%;max-width:600px}
.pad{display:block;width:100%;height:190px;background:#fff;border:1px solid var(--line);border-radius:10px;touch-action:none;cursor:crosshair}
.sign-panel .mini{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.9rem}
.sign-panel .mini select{width:auto}
.font-pick{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:8px}
.font-pick button{min-height:72px;padding:8px 12px;border:2px solid var(--line);border-radius:10px;background:#fff;color:#0b1f66;font-size:32px;cursor:pointer;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.font-pick button[aria-pressed=true]{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.up-prev{display:flex;justify-content:center;padding:8px;border-radius:10px;border:1px solid var(--line)}
.up-prev:empty{display:none}
.up-prev canvas{max-height:140px;width:auto}
.sig{position:absolute;touch-action:none;cursor:move;outline:1px dashed rgba(47,91,234,.7)}
.sig.sel{outline:2px solid var(--accent)}
.sig img{display:block;width:100%;height:100%;pointer-events:none;user-select:none;-webkit-user-drag:none}
.sig-x{position:absolute;top:-13px;right:-13px;width:26px;height:26px;padding:0;border:0;border-radius:50%;background:var(--err);color:#fff;font-size:12px;line-height:26px;cursor:pointer;display:none}
.sig-h{position:absolute;right:-8px;bottom:-8px;width:16px;height:16px;background:var(--accent);border:2px solid #fff;border-radius:4px;cursor:nwse-resize;display:none}
.sig.sel .sig-x,.sig.sel .sig-h,.sig:hover .sig-x,.sig:hover .sig-h{display:block}
.editor[data-placing="1"] .ov{cursor:copy}

@media (max-width:760px){
  .qr-layout{grid-template-columns:1fr}
  .qr-out{position:static;order:-1}
  .qr-box{max-width:280px;margin:0 auto}
  .sig-x,.sig-h{display:block}
}
.qr-form .seg{display:flex}
.qr-form .seg button{flex:1 1 auto}