:root {
  --fondo: #f6f5f1;
  --panel: #ffffff;
  --texto: #1d2230;
  --suave: #5b6272;
  --borde: #dedcd4;
  --acento: #1f4e79;
  --acento-2: #2c6aa3;
  --ok: #2e7d4f;
  --aviso: #9a6200;
  --error: #b3261e;
  --marca: #fff0b3;
  --marca-texto: #5a4300;
  --etq: #e4eefb;
  --etq-texto: #1f4e79;
  --radio: 10px;
  --sombra: 0 1px 2px rgba(20, 25, 40, .06), 0 4px 16px rgba(20, 25, 40, .06);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fondo: #14171d; --panel: #1c2028; --texto: #e6e8ec; --suave: #a3a9b6; --borde: #2f3540;
    --acento: #7fb0e6; --acento-2: #9cc3ee; --ok: #6fcf97; --aviso: #f2c063; --error: #ff8a80;
    --marca: #5c4a00; --marca-texto: #ffe9a8; --etq: #233650; --etq-texto: #bcd6f5;
    --sombra: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--fondo); color: var(--texto);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--acento-2); }
.envoltorio { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header.sitio { border-bottom: 1px solid var(--borde); background: var(--panel); }
header.sitio .envoltorio { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; flex-wrap: wrap; }
.marca-sitio { font-weight: 700; letter-spacing: .2px; color: var(--texto); text-decoration: none; font-size: 1.05rem; }
.marca-sitio span { color: var(--acento-2); }
nav.sitio a { margin-left: 18px; text-decoration: none; color: var(--suave); font-size: .95rem; }
nav.sitio a[aria-current] { color: var(--texto); font-weight: 600; }
h1 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); line-height: 1.2; margin: 32px 0 10px; }
h2 { font-size: 1.25rem; margin: 0 0 12px; }
h3 { font-size: 1.02rem; margin: 18px 0 8px; }
p.intro { color: var(--suave); max-width: 760px; margin: 0 0 18px; }
.sello {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--ok) 14%, transparent); color: var(--ok); font-weight: 600; font-size: .9rem;
}
.panel { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 20px; box-shadow: var(--sombra); margin: 18px 0; }
.pestanas { display: flex; gap: 6px; margin-top: 22px; border-bottom: 1px solid var(--borde); flex-wrap: wrap; }
.pestanas button {
  border: 0; background: none; padding: 10px 14px; font: inherit; color: var(--suave); cursor: pointer;
  border-bottom: 3px solid transparent; margin-bottom: -1px;
}
.pestanas button[aria-selected="true"] { color: var(--texto); border-bottom-color: var(--acento-2); font-weight: 600; }
.rejilla { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
label { display: block; font-weight: 600; font-size: .92rem; margin: 12px 0 6px; }
.ayuda { color: var(--suave); font-size: .86rem; font-weight: 400; margin: 4px 0 0; }
input[type="password"], input[type="text"], textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--borde); border-radius: 8px; background: var(--fondo); color: var(--texto); font: inherit;
}
textarea { min-height: 110px; resize: vertical; font-size: .93rem; }
.soltar {
  border: 2px dashed var(--borde); border-radius: var(--radio); padding: 22px; text-align: center; color: var(--suave);
  cursor: pointer; transition: border-color .15s, background .15s;
}
.soltar.activo, .soltar:hover { border-color: var(--acento-2); background: color-mix(in srgb, var(--acento-2) 6%, transparent); }
.soltar strong { color: var(--texto); }
.soltar input { display: none; }
.boton {
  display: inline-flex; align-items: center; gap: 8px; border: 0; border-radius: 8px; padding: 11px 18px; font: inherit; font-weight: 600;
  background: var(--acento); color: #fff; cursor: pointer; text-decoration: none;
}
@media (prefers-color-scheme: dark) { .boton { color: #10161f; } }
.boton.secundario { background: transparent; color: var(--acento-2); border: 1px solid var(--borde); }
.boton:disabled { opacity: .55; cursor: progress; }
.acciones { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; align-items: center; }
details { margin-top: 12px; }
summary { cursor: pointer; color: var(--acento-2); font-weight: 600; }
.mensaje { padding: 10px 14px; border-radius: 8px; margin: 12px 0 0; font-size: .93rem; }
.mensaje.error { background: color-mix(in srgb, var(--error) 12%, transparent); color: var(--error); }
.mensaje.aviso { background: color-mix(in srgb, var(--aviso) 14%, transparent); color: var(--aviso); }
.mensaje.ok { background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--ok); }
.oculto { display: none !important; }
.cifras { display: flex; gap: 22px; flex-wrap: wrap; margin: 4px 0 6px; }
.cifra b { display: block; font-size: 1.6rem; line-height: 1.1; }
.cifra span { color: var(--suave); font-size: .85rem; }
.tabla-env { overflow-x: auto; max-height: 360px; overflow-y: auto; border: 1px solid var(--borde); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--borde); vertical-align: top; }
th { position: sticky; top: 0; background: var(--panel); font-size: .8rem; text-transform: uppercase; letter-spacing: .4px; color: var(--suave); }
td.dato { word-break: break-word; }
.vista {
  white-space: pre-wrap; word-break: break-word; background: var(--fondo); border: 1px solid var(--borde); border-radius: 8px;
  padding: 14px; max-height: 420px; overflow: auto; font-size: .92rem;
}
.vista mark { background: var(--etq); color: var(--etq-texto); border-radius: 4px; padding: 0 3px; font-weight: 600; }
.vista mark.real { background: var(--marca); color: var(--marca-texto); }
.lista-comparativa { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.lista-comparativa .panel { margin: 0; }
.lista-comparativa ul { padding-left: 20px; margin: 6px 0 0; }
.lista-comparativa li { margin: 4px 0; }
footer.sitio { color: var(--suave); font-size: .85rem; padding: 26px 0 40px; border-top: 1px solid var(--borde); margin-top: 30px; }
.hero { padding: 26px 0 8px; }
.hero p { font-size: 1.08rem; }
.pasos { counter-reset: paso; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.paso { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 16px; }
.paso::before { counter-increment: paso; content: counter(paso); display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--etq); color: var(--etq-texto); font-weight: 700; margin-bottom: 8px; }
code { background: var(--etq); color: var(--etq-texto); padding: 1px 5px; border-radius: 4px; font-size: .88em; }
@media (max-width: 560px) {
  nav.sitio a { margin-left: 12px; }
  .panel { padding: 16px; }
}
.separado { margin-top: 34px; }