:root {
  --tinta: #1d232b;
  --suave: #4f5964;
  --linea: #d9dde2;
  --fondo: #ffffff;
  --papel: #f5f3ef;
  --acento: #a8461f;
  --acento-osc: #863616;
  --critico: #a8461f;
  --normal: #5f7d95;
  --reserva: #c9cfd6;
  --max: 1080px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--fondo); color: var(--tinta); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--acento); text-underline-offset: 2px; }
a:hover { color: var(--acento-osc); }
:focus-visible { outline: 3px solid var(--acento); outline-offset: 2px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(30px, 6vw, 46px); margin: 0 0 16px; }
h2 { font-size: clamp(23px, 4vw, 30px); margin: 0 0 14px; }
h3 { font-size: 19px; margin: 24px 0 8px; }
p, ul, ol { margin: 0 0 14px; }
ul, ol { padding-left: 22px; }
li { margin-bottom: 6px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

header.top { border-bottom: 1px solid var(--linea); background: var(--fondo); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 12px; }
.marca { font-weight: 700; font-size: 19px; color: var(--tinta); text-decoration: none; white-space: nowrap; }
.marca span { color: var(--acento); }
nav.top a { color: var(--tinta); font-size: 15px; text-decoration: none; margin-left: 16px; }
nav.top a:hover { color: var(--acento); }

.hero { padding: 44px 0 36px; }
.hero p.lead { font-size: 19px; color: var(--suave); max-width: 720px; }
.acciones { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 12px; }
.boton { display: inline-block; background: var(--acento); color: #fff; font-weight: 600; text-decoration: none; padding: 13px 22px; border-radius: 6px; border: 2px solid var(--acento); transition: background-color 180ms ease; }
.boton:hover { background: var(--acento-osc); border-color: var(--acento-osc); color: #fff; }
.boton.sec { background: transparent; color: var(--acento); }
.boton.sec:hover { background: var(--papel); color: var(--acento-osc); }
.nota { font-size: 15px; color: var(--suave); }

.bloque { padding: 40px 0; border-top: 1px solid var(--linea); }
.bloque.papel { background: var(--papel); }
.dos { display: grid; gap: 28px; }
.card { background: var(--fondo); border: 1px solid var(--linea); border-radius: 8px; padding: 22px; }
.precio { font-size: 34px; font-weight: 700; margin: 0; }
.precio small { font-size: 15px; font-weight: 400; color: var(--suave); display: block; }
ul.check { list-style: none; padding: 0; }
ul.check li { padding-left: 26px; position: relative; }
ul.check li::before { content: ""; position: absolute; left: 2px; top: 0.55em; width: 12px; height: 7px; border-left: 2px solid var(--acento); border-bottom: 2px solid var(--acento); transform: rotate(-45deg); }
ul.no { list-style: none; padding: 0; }
ul.no li { padding-left: 26px; position: relative; }
ul.no li::before { content: "–"; position: absolute; left: 4px; color: var(--suave); }
ol.pasos { counter-reset: paso; list-style: none; padding: 0; display: grid; gap: 14px; }
ol.pasos li { counter-increment: paso; padding-left: 46px; position: relative; margin: 0; }
ol.pasos li::before { content: counter(paso); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--tinta); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 15px; }
.ejemplos { display: grid; gap: 16px; }
.ejemplos .card h3 { margin-top: 0; }
details { border-bottom: 1px solid var(--linea); padding: 12px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; }

footer { border-top: 1px solid var(--linea); padding: 28px 0 40px; font-size: 14px; color: var(--suave); }

/* Legal pages */
main.doc { max-width: 760px; margin: 0 auto; padding: 32px 16px 48px; }
main.doc dl, .portada dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
main.doc dt, .portada dt { font-weight: 600; }
main.doc dd, .portada dd { margin: 0; }

/* Sample documents (free review and technical memory) */
main.muestra { max-width: 860px; margin: 0 auto; padding: 24px 16px 48px; }
.aviso-muestra { background: var(--papel); border-left: 4px solid var(--acento); padding: 14px 16px; border-radius: 4px; margin-bottom: 24px; font-size: 15px; }
.aviso-muestra p { margin: 0; }
.portada { border-bottom: 2px solid var(--tinta); padding-bottom: 18px; margin-bottom: 26px; }
.portada .sobre { text-transform: uppercase; letter-spacing: 0.06em; font-size: 13px; color: var(--acento); font-weight: 700; margin-bottom: 6px; }
.portada h1 { font-size: clamp(26px, 5vw, 36px); }
.portada .obra { font-size: 19px; color: var(--suave); }
.portada dl { font-size: 15px; }
.inventado { color: var(--acento); font-size: 0.9em; }
.inventado-bloque { font-size: 15px; color: var(--acento); }
main.muestra h2 { margin-top: 34px; padding-top: 6px; }
main.muestra table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 8px 0 18px; }
main.muestra th, main.muestra td { border: 1px solid var(--linea); padding: 8px 10px; text-align: left; vertical-align: top; }
main.muestra thead th { background: var(--papel); }
.tabla-wrap { overflow-x: auto; }
blockquote.consulta { margin: 10px 0 18px; padding: 14px 16px; background: var(--papel); border-radius: 4px; font-size: 15px; }
.fin { margin-top: 40px; font-size: 15px; color: var(--suave); }
.cta-muestra { margin-top: 40px; }

/* Gantt */
.gantt-wrap { overflow-x: auto; margin: 10px 0 6px; border: 1px solid var(--linea); border-radius: 6px; }
main.muestra table.gantt { margin: 0; font-size: 13px; table-layout: fixed; min-width: 760px; }
table.gantt th, table.gantt td { border: 1px solid var(--linea); padding: 0; height: 30px; text-align: center; }
table.gantt td { position: relative; }
table.gantt th.act { width: 260px; text-align: left; padding: 6px 8px; font-weight: 500; background: var(--fondo); position: sticky; left: 0; z-index: 1; }
table.gantt thead th { background: var(--papel); font-weight: 600; }
table.gantt thead th.act { background: var(--papel); }
table.gantt .rango { display: block; font-size: 12px; color: var(--suave); }
table.gantt td.c { background: var(--critico); }
table.gantt td.n { background: var(--normal); }
table.gantt td.h { background: repeating-linear-gradient(45deg, var(--reserva), var(--reserva) 4px, #e8ebee 4px, #e8ebee 8px); }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.leyenda { font-size: 14px; color: var(--suave); }
.leyenda .m { display: inline-block; width: 14px; height: 14px; vertical-align: -2px; margin: 0 4px 0 10px; border-radius: 2px; }
.leyenda .m:first-child { margin-left: 0; }
.leyenda .m.c { background: var(--critico); }
.leyenda .m.n { background: var(--normal); }
.leyenda .m.h { background: var(--reserva); }

@media (min-width: 760px) {
  .dos { grid-template-columns: 1.4fr 1fr; align-items: start; }
  .ejemplos { grid-template-columns: 1fr 1fr; }
  .hero { padding: 64px 0 48px; }
}
.desliza { display: none; font-size: 14px; color: var(--suave); margin: 0 0 6px; }
@media (max-width: 620px) {
  .desliza { display: block; }
  table.gantt th.act { width: 150px; font-size: 12px; }
  main.muestra table.gantt { min-width: 540px; }
}
@media (max-width: 420px) {
  nav.top a { margin-left: 10px; font-size: 14px; }
  main.doc dl, .portada dl { grid-template-columns: 1fr; gap: 2px; }
  main.doc dd, .portada dd { margin-bottom: 8px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

@media print {
  @page { size: A4; margin: 16mm 14mm; }
  body { font-size: 10.5pt; line-height: 1.45; }
  header.top, footer, .cta-muestra, .solo-web, .desliza { display: none !important; }
  main.muestra { max-width: none; padding: 0; }
  main.muestra h2 { break-after: avoid; margin-top: 18pt; }
  main.muestra table:not(.gantt) { break-inside: avoid; }
  .salto { break-before: page; }
  .gantt-wrap { overflow: visible; border: 0; }
  main.muestra table.gantt { min-width: 0; font-size: 7pt; line-height: 1.2; }
  table.gantt th.act { width: 72mm; position: static; padding: 2pt 4pt; }
  table.gantt .rango { display: inline; font-size: 6.5pt; margin-left: 4pt; }
  table.gantt th, table.gantt td { height: 15pt; }
  table.gantt tr { break-inside: avoid; }
  table.gantt td.c, table.gantt td.n, table.gantt td.h, .leyenda .m { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  a { color: inherit; text-decoration: none; }
}
.sin-margen { margin-top: 0; }