:root {
  color-scheme: light;
  --bg: #f4f6f8; --panel: #ffffff; --panel-2: #f0f3f5; --border: #d8dee3;
  --text: #10171d; --muted: #5b6b78;
  --accent: #0e7c86; --accent-strong: #0b5f67; --accent-soft: #e2f2f3;
  --danger: #b4232a; --danger-soft: #fbe7e7;
  --warn: #8a5a00; --warn-soft: #fbf0dc;
  --ok: #1a7f4b; --ok-soft: #e3f4ea;
  --radius: 16px; --shadow: 0 10px 30px rgba(16, 23, 29, .08);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0d1418; --panel: #141d23; --panel-2: #101a1f; --border: #243139;
    --text: #e7eef2; --muted: #93a3ae;
    --accent: #34b3bd; --accent-strong: #4cc4cd; --accent-soft: #123036;
    --danger: #f0888c; --danger-soft: #2a1416;
    --warn: #e0b46b; --warn-soft: #2a2213;
    --ok: #5fd191; --ok-soft: #10261a;
    --shadow: 0 10px 30px rgba(0, 0, 0, .4);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1418; --panel: #141d23; --panel-2: #101a1f; --border: #243139;
  --text: #e7eef2; --muted: #93a3ae;
  --accent: #34b3bd; --accent-strong: #4cc4cd; --accent-soft: #123036;
  --danger: #f0888c; --danger-soft: #2a1416;
  --warn: #e0b46b; --warn-soft: #2a2213;
  --ok: #5fd191; --ok-soft: #10261a;
  --shadow: 0 10px 30px rgba(0, 0, 0, .4);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.5; min-height: 100dvh;
  display: flex; flex-direction: column; align-items: center; padding: 16px 16px 40px;
}
body.dragging::after { content: ""; position: fixed; inset: 0; border: 3px dashed var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); pointer-events: none; z-index: 50; }
main { width: 100%; max-width: 640px; }
a { color: var(--accent-strong); }

/* Barra superior: marca + tema + idioma */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand .logo { width: 40px; height: 40px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); border-radius: 12px; }
.brand .bname { font-size: 1.35rem; font-weight: 700; letter-spacing: -.01em; }
.topbtns { display: flex; gap: 6px; }
.topbtns a, .topbtns button { display: inline-flex; align-items: center; gap: 6px; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 7px 10px; color: var(--text); text-decoration: none; font-size: .85rem; font-weight: 600; cursor: pointer; }
.topbtns a:hover, .topbtns button:hover { border-color: var(--accent); }

/* Titular de la página */
.hero { text-align: center; margin: 4px 0 14px; }
.hero h1 { font-size: 1.7rem; line-height: 1.2; margin: 0 0 8px; letter-spacing: -.015em; }
.hero .lead { color: var(--muted); margin: 0 auto; max-width: 560px; font-size: 1rem; }
.by { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font-size: .78rem; color: var(--muted); text-decoration: none; }
.by b { color: var(--accent-strong); font-weight: 600; }
.by:hover b { text-decoration: underline; }

/* Contador de bytes: la prueba de que nada se sube */
.meter { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 6px 10px; margin: 0 auto 12px; font-size: .84rem; color: var(--ok); background: var(--ok-soft); border: 1px solid color-mix(in srgb, var(--ok) 30%, transparent); border-radius: 999px; padding: 7px 14px; width: fit-content; max-width: 100%; }
.meter .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 25%, transparent); }
.meter b { font-weight: 700; }
.meter .sep { color: color-mix(in srgb, var(--ok) 50%, transparent); }
.meter button { background: none; border: none; color: inherit; text-decoration: underline; cursor: pointer; font-size: inherit; padding: 0; }
.meter-detail { display: none; margin: -4px auto 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px; font-size: .82rem; color: var(--muted); }
.meter-detail.show { display: block; }
.meter-detail b { color: var(--text); }
.meter-detail ul { margin: 6px 0; padding: 0; list-style: none; }
.meter-detail li { display: flex; justify-content: space-between; gap: 10px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .76rem; }
.meter-detail li span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.offline { display: none; margin: 0 0 12px; padding: 10px 14px; border-radius: 12px; background: var(--warn-soft); color: var(--warn); font-size: .86rem; text-align: center; }
.offline.show { display: block; }

/* Franja de privacidad: el diferenciador */
.trust {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 0 0 16px;
  background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-radius: 14px; padding: 12px 14px;
}
.trust > div { display: flex; gap: 8px; align-items: flex-start; font-size: .82rem; color: var(--accent-strong); }
.trust > div > div { min-width: 0; }
.trust svg { flex: 0 0 auto; margin-top: 2px; }
.trust b { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 1px; }
@media (max-width: 520px) { .trust { grid-template-columns: 1fr; } }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.drop { border: 2px dashed var(--border); border-radius: 14px; background: var(--panel-2); padding: 34px 20px; text-align: center; cursor: pointer; transition: border-color .15s, background .15s; }
.drop:hover, .drop.drag { border-color: var(--accent); background: var(--accent-soft); }
.drop svg { color: var(--muted); margin-bottom: 8px; }
.drop strong { display: block; font-size: 1.05rem; }
.drop span { color: var(--muted); font-size: .88rem; }
.drop small { display: block; color: var(--muted); font-size: .76rem; margin-top: 8px; }
.file-row { display: flex; align-items: center; gap: 12px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.file-row .ic { color: var(--accent); flex: 0 0 auto; }
.file-row .meta { min-width: 0; flex: 1; }
.file-row .name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-row .size { color: var(--muted); font-size: .82rem; }
.file-row button.link { background: none; border: none; color: var(--muted); cursor: pointer; font-size: .85rem; padding: 4px; text-decoration: underline; }

label.field { display: block; margin: 16px 0 6px; font-weight: 600; font-size: .9rem; }
.pw-wrap { position: relative; display: flex; }
input[type=password], input[type=text].pw { width: 100%; padding: 12px 44px 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text); font-size: 1rem; }
.pw-toggle { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--muted); cursor: pointer; padding: 8px; display: grid; place-items: center; }
.num-wrap { display: flex; align-items: center; gap: 10px; }
input[type=number].num { width: 130px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text); font-size: 1rem; }
.num-wrap .unit { color: var(--muted); font-size: .9rem; }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
button.primary { width: 100%; margin-top: 16px; background: var(--accent); color: #fff; border: none; border-radius: 12px; padding: 14px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: background .15s; }
button.primary:hover:not(:disabled) { background: var(--accent-strong); }
button.primary:disabled { opacity: .55; cursor: default; }
button.secondary { width: 100%; margin-top: 10px; background: var(--panel-2); color: var(--text); border: 1px solid var(--border); border-radius: 12px; padding: 12px; font-size: .95rem; font-weight: 600; cursor: pointer; }

/* Elección de acción, agrupada por tipo */
.choose-title { margin: 18px 0 4px; font-weight: 600; font-size: .9rem; }
.glabel { margin: 10px 0 6px; font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.actions { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.action {
  text-align: left; background: var(--panel-2); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 14px 12px; cursor: pointer; color: var(--text); transition: border-color .15s, background .15s;
  display: flex; flex-direction: column; gap: 6px; font: inherit;
}
.action:hover:not(:disabled) { border-color: var(--accent); }
.action[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.action:disabled { opacity: .5; cursor: default; }
.action .ai { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: var(--panel); color: var(--accent); border: 1px solid var(--border); }
.action[aria-pressed="true"] .ai { background: var(--accent); color: #fff; border-color: var(--accent); }
.action b { font-size: .95rem; }
.action span { color: var(--muted); font-size: .8rem; line-height: 1.35; }

.panel { margin-top: 6px; }
.msg { margin-top: 14px; padding: 12px 14px; border-radius: 12px; font-size: .9rem; display: none; }
.msg.show { display: block; }
.msg.err { background: var(--danger-soft); color: var(--danger); }
.msg.ok { background: var(--ok-soft); color: var(--ok); }
.msg.info { background: var(--accent-soft); color: var(--accent-strong); }
.msg.warn { background: var(--warn-soft); color: var(--warn); }
.spinner { width: 16px; height: 16px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; display: inline-block; vertical-align: -3px; margin-right: 8px; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.progress { margin-top: 14px; display: none; }
.progress.show { display: block; }
.progress .track { height: 8px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.progress .bar { height: 100%; width: 0%; background: var(--accent); transition: width .1s linear; }
.progress .label { margin-top: 6px; font-size: .82rem; color: var(--muted); }

.preview { margin-top: 14px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; font-size: .88rem; }
.preview:empty { display: none; }
.preview .ptitle { font-weight: 600; margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.preview .ptitle svg { color: var(--accent); }
.preview ul { list-style: none; margin: 6px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; }
.preview li { display: flex; justify-content: space-between; gap: 8px; }
.preview li span:last-child { color: var(--muted); white-space: nowrap; }
.preview .note { color: var(--muted); font-size: .8rem; margin-top: 8px; }
.preview .kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin-top: 4px; }
.preview .kv b { font-weight: 600; }
@media (max-width: 480px) { .preview ul { grid-template-columns: 1fr; } }

.result { margin-top: 16px; display: none; }
.result.show { display: block; }
.result .summary { font-weight: 600; margin: 0 0 10px; }
a.download, button.download { display: flex; align-items: center; justify-content: center; gap: 8px; background: var(--ok-soft); color: var(--ok); text-decoration: none; font-weight: 600; border: 1px solid color-mix(in srgb, var(--ok) 30%, transparent); border-radius: 12px; padding: 14px; cursor: pointer; width: 100%; font-size: 1rem; }
.parts { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.part { display: flex; align-items: center; gap: 12px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; }
.part .pmeta { min-width: 0; flex: 1; }
.part .ptitle { font-weight: 600; font-size: .92rem; }
.part .psub { color: var(--muted); font-size: .8rem; }
.part a.pdl { flex: 0 0 auto; text-decoration: none; font-weight: 600; font-size: .85rem; color: var(--accent-strong); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); border-radius: 9px; padding: 8px 12px; }

/* Controles de Unir, Rotar y Proteger */
.seg { display: flex; gap: 8px; flex-wrap: wrap; }
.seg button { flex: 1 1 0; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 10px 8px; color: var(--text); cursor: pointer; font-size: .9rem; font-weight: 600; display: flex; align-items: center; justify-content: center; gap: 6px; }
.seg button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-strong); box-shadow: inset 0 0 0 1px var(--accent); }
.opt { display: flex; align-items: center; gap: 8px; margin: 8px 0; font-size: .92rem; cursor: pointer; }
.opt input { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; flex: 0 0 auto; }
.opt span { color: var(--muted); font-size: .82rem; }
input[type=text].rng { width: 100%; margin-top: 4px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text); font-size: 1rem; }
.mlist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.mitem { display: flex; align-items: center; gap: 10px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; flex-wrap: wrap; }
.mitem.locked { border-color: color-mix(in srgb, var(--warn) 50%, transparent); }
.mitem .mpos { flex: 0 0 auto; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 7px; background: var(--accent-soft); color: var(--accent-strong); font-size: .78rem; font-weight: 700; }
.mitem .mn { min-width: 0; flex: 1; }
.mitem .mname { font-weight: 600; font-size: .92rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mitem .msub { color: var(--muted); font-size: .8rem; }
.mitem .mbtns { display: flex; gap: 4px; flex: 0 0 auto; }
.mitem .mbtns button { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; color: var(--text); cursor: pointer; width: 32px; height: 32px; display: grid; place-items: center; padding: 0; }
.mitem .mbtns button:disabled { opacity: .35; cursor: default; }
.mitem .mpw { flex-basis: 100%; display: flex; gap: 8px; }
.mitem .mpw input { flex: 1; min-width: 0; padding: 8px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); color: var(--text); font-size: .95rem; }
.mitem .mpw button { background: var(--accent); color: #fff; border: none; border-radius: 10px; padding: 8px 14px; font-weight: 600; cursor: pointer; }

/* Contenido de las páginas (SEO): herramientas, cómo funciona, comparación, preguntas */
.sec { margin-top: 34px; }
.sec h2 { font-size: 1.3rem; margin: 0 0 6px; letter-spacing: -.01em; }
.sec > p { color: var(--muted); margin: 0 0 12px; }
.sec p.body { color: var(--text); }
.toolgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; margin-top: 10px; }
.toolgrid a { display: flex; flex-direction: column; gap: 4px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 14px; text-decoration: none; color: var(--text); }
.toolgrid a:hover { border-color: var(--accent); }
.toolgrid a b { font-size: .95rem; }
.toolgrid a span { color: var(--muted); font-size: .8rem; line-height: 1.35; }
.steps { list-style: none; counter-reset: s; margin: 10px 0 0; padding: 0; display: grid; gap: 10px; }
.steps li { display: flex; gap: 12px; align-items: flex-start; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.steps li::before { counter-increment: s; content: counter(s); flex: 0 0 auto; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; background: var(--accent-soft); color: var(--accent-strong); font-weight: 700; font-size: .85rem; }
.steps b { display: block; font-size: .95rem; }
.steps span { color: var(--muted); font-size: .86rem; }
.faq details { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 0 14px; margin-top: 8px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 12px 0; font-size: .95rem; list-style: none; display: flex; justify-content: space-between; gap: 10px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 12px; color: var(--muted); font-size: .9rem; }
.cmp { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: .88rem; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.cmp th, .cmp td { text-align: left; padding: 10px 12px; border-top: 1px solid var(--border); vertical-align: top; }
.cmp thead th { border-top: none; background: var(--panel-2); font-size: .82rem; }
.cmp td:first-child { color: var(--muted); width: 34%; }
.cmp td.us { color: var(--ok); font-weight: 600; }
.cmp td.them { color: var(--muted); }
.cmp-wrap { overflow-x: auto; }
.cmp-note { color: var(--muted); font-size: .78rem; margin-top: 8px; }
.links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.links a { background: var(--panel); border: 1px solid var(--border); border-radius: 999px; padding: 6px 12px; text-decoration: none; color: var(--text); font-size: .86rem; font-weight: 600; }
.links a:hover { border-color: var(--accent); }
.uses { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 8px; }
.uses a { display: block; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; text-decoration: none; color: var(--text); }
.uses a b { display: block; font-size: .95rem; }
.uses a span { color: var(--muted); font-size: .84rem; }
.uses a:hover { border-color: var(--accent); }
.cta { display: inline-flex; margin-top: 12px; background: var(--accent); color: #fff; border-radius: 12px; padding: 12px 18px; text-decoration: none; font-weight: 600; }

footer { margin-top: 30px; text-align: center; color: var(--muted); font-size: .8rem; line-height: 1.6; }
footer nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 14px; margin: 8px 0; }
footer nav a { color: var(--muted); }
footer .by { margin-top: 4px; }
.hidden { display: none !important; }

/* Miniaturas: extraer y reordenar */
.thumbs-hint { color: var(--muted); font-size: .82rem; margin: 6px 0 8px; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 8px; max-height: 420px; overflow-y: auto; padding: 4px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); }
.thumbs:empty { display: none; }
.thumb { position: relative; background: var(--panel); border: 2px solid var(--border); border-radius: 10px; padding: 6px 6px 4px; text-align: center; cursor: pointer; user-select: none; -webkit-user-select: none; }
.thumb img, .thumb .ph { display: block; width: 100%; aspect-ratio: 3 / 4; object-fit: contain; background: #fff; border-radius: 4px; }
.thumb .ph { display: grid; place-items: center; color: #9aa; font-size: .8rem; background: color-mix(in srgb, var(--panel-2) 60%, #fff); }
.thumb .pn { display: block; font-size: .74rem; color: var(--muted); margin-top: 4px; }
.thumb .chk { position: absolute; top: 8px; left: 8px; width: 20px; height: 20px; border-radius: 6px; border: 2px solid var(--border); background: var(--panel); display: grid; place-items: center; color: #fff; }
.thumb.selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.thumb.selected .chk { background: var(--accent); border-color: var(--accent); }
.thumb.removing img { opacity: .35; }
.sortable .thumb { cursor: grab; }
.sortable .thumb.dragging { opacity: .4; }
.sortable .thumb.over-before { box-shadow: -4px 0 0 0 var(--accent); }
.sortable .thumb.over-after { box-shadow: 4px 0 0 0 var(--accent); }
.thumb .mv { display: flex; justify-content: space-between; margin-top: 4px; }
.thumb .mv button { background: var(--panel-2); border: 1px solid var(--border); border-radius: 6px; color: var(--text); cursor: pointer; width: 30px; height: 26px; display: grid; place-items: center; padding: 0; }
.thumb .mv button:disabled { opacity: .3; cursor: default; }
.thumb .moved { position: absolute; top: 8px; right: 8px; font-size: .68rem; font-weight: 700; background: var(--accent); color: #fff; border-radius: 6px; padding: 1px 5px; }

/* Metadatos */
.meta-row { display: grid; grid-template-columns: 130px 1fr; align-items: center; gap: 8px; margin: 6px 0; }
.meta-row label { font-size: .88rem; color: var(--muted); }
.meta-row input { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); color: var(--text); font-size: .95rem; }
.meta-ro { display: grid; grid-template-columns: 130px 1fr; gap: 6px 8px; font-size: .88rem; }
.meta-ro span:nth-child(odd) { color: var(--muted); }
.meta-ro span:nth-child(even) { overflow-wrap: anywhere; }
@media (max-width: 480px) { .meta-row, .meta-ro { grid-template-columns: 1fr; } .meta-row { gap: 2px; } }
button.secondary.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }

/* Conversiones */
.part img.pimg { width: 48px; height: 48px; object-fit: contain; background: #fff; border-radius: 6px; border: 1px solid var(--border); flex: 0 0 auto; }
.mitem img.mimg { width: 44px; height: 44px; object-fit: cover; background: #fff; border-radius: 6px; border: 1px solid var(--border); flex: 0 0 auto; }
textarea.textout { width: 100%; margin-top: 12px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); color: var(--text); font: .85rem/1.45 ui-monospace, SFMono-Regular, Menlo, monospace; resize: vertical; }

/* Vista previa de sello (marca de agua / numeración) */
.preview img.sample { display: block; max-width: 220px; max-height: 260px; margin: 8px auto 0; background: #fff; border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 2px 8px rgba(0,0,0,.15); }

/* Firmar */
.sigpad { border: 2px dashed var(--border); border-radius: 12px; background: #fff; overflow: hidden; }
.sigpad canvas { display: block; width: 100%; height: auto; touch-action: none; cursor: crosshair; }
.btnrow { display: flex; gap: 8px; }
.btnrow .secondary { flex: 1; }
.sigstage { position: relative; margin-top: 8px; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fff; user-select: none; -webkit-user-select: none; touch-action: none; cursor: crosshair; }
.sigstage img#k-pageImg { display: block; width: 100%; height: auto; }
.sigstage .sigov { position: absolute; pointer-events: auto; cursor: move; outline: 2px dashed var(--accent); outline-offset: 2px; }
/* Formularios */
.fields { display: grid; gap: 10px; margin-top: 14px; }
.fld { display: grid; grid-template-columns: 1fr; gap: 4px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; }
.fld label { font-size: .86rem; font-weight: 600; }
.fld label span { color: var(--muted); font-weight: 400; font-size: .78rem; }
.fld input[type=text], .fld textarea, .fld select { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); color: var(--text); font: inherit; font-size: .95rem; }
.fld .opts { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.fld .opts label { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; font-size: .9rem; }
.fld input[type=checkbox], .fld input[type=radio] { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }