/* Herramientas (herramientas.html) y lector de Markdown (leer.html). Tokens, botones y pie de iso.css (guía de estilo,
   dev-docs/ui-kit.html): fondo Noche, tarjetas en Superficie con borde Muro, títulos en Instrument Serif con el remate
   en itálica ámbar y etiquetas en JetBrains Mono. */
.hr-top { max-width: 1168px; margin: 0 auto; padding: 20px 16px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.hr-marca { font: 400 22px/1 var(--serif); letter-spacing: .3em; color: var(--piedra); text-decoration: none; }
.hr-marca:hover { color: var(--ambar); }
.hr-volver { font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--humo); text-decoration: none; }
.hr-volver:hover { color: var(--ambar); }
.hr-main { max-width: 1168px; margin: 0 auto; padding: 48px 16px 72px; }
.hr-label { margin: 0 0 10px; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ambar); }
.hr-main h1 { margin: 0; font: 400 clamp(38px, 6vw, 60px)/1.05 var(--serif); }
.hr-main h1 em, .hr-main h2 em { color: var(--ambar); }
.hr-intro { margin: 14px 0 36px; max-width: 620px; color: var(--ceniza); text-wrap: pretty; }
.hr-main h2 { margin: 0; font: 400 32px/1.1 var(--serif); }

.hr-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 960px) { .hr-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .hr-grid { grid-template-columns: minmax(0, 1fr); } }
.hr-card { position: relative; display: flex; flex-direction: column; gap: 10px; min-height: 176px; padding: 22px; border-radius: 14px;
  background: var(--superficie); border: 1px solid var(--muro); color: var(--pergamino); text-decoration: none;
  transition: transform .15s, border-color .15s, box-shadow .15s; }
a.hr-card:hover { color: var(--pergamino); border-color: var(--ambar); transform: translateY(-2px); box-shadow: 0 12px 30px -16px rgba(0, 0, 0, .6); }
a.hr-card:focus-visible { outline: none; box-shadow: var(--foco); }
.hr-ico { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 10px; background: var(--muro); color: var(--ambar); font-size: 20px; }
.hr-ico svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.hr-card h3 { margin: 4px 0 0; font: 600 17px var(--sans); }
.hr-card p { margin: 0; font-size: 14px; line-height: 1.5; color: var(--ceniza); text-wrap: pretty; }
.hr-card .hr-file { margin-top: auto; padding-top: 6px; font: 400 12px var(--mono); color: var(--humo); }
.hr-tag { position: absolute; top: 22px; right: 22px; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--muro-claro);
  font: 500 10px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--humo); }
.hr-card.off { opacity: .55; }

/* Zona privada: un enlace abre la contraseña; con la correcta se muestran las tarjetas (solo en esta pestaña) */
.hr-priv { margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--muro); }
.hr-priv-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 12px 24px; margin-bottom: 20px; }
.hr-link { padding: 0; border: 0; background: none; font: 500 14px var(--sans); color: var(--ambar); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.hr-link:hover { color: var(--pergamino); }
.hr-form { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 8px; }
.hr-form input { min-width: 0; width: 240px; max-width: 100%; padding: 11px 14px; border-radius: 10px; border: 1px solid var(--muro-claro);
  background: var(--noche); color: var(--pergamino); font: 400 15px var(--sans); }
.hr-form input:focus-visible { outline: none; border-color: var(--ambar); box-shadow: var(--foco); }
.hr-err { margin: 0 0 8px; min-height: 1.4em; font-size: 13px; color: var(--oxido-claro); }
.hr-cerrada { margin: 0; font-size: 14px; color: var(--ceniza); }

/* ---------- Lector de Markdown (leer.html) ---------- */
.md-wrap { max-width: 1168px; margin: 0 auto; padding: 32px 16px 72px; display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; }
@media (max-width: 860px) { .md-wrap { grid-template-columns: minmax(0, 1fr); gap: 16px; } }
.md-toc { position: sticky; top: 16px; align-self: start; max-height: calc(100vh - 32px); overflow: auto; font-size: 13px; }
.md-toc ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.md-toc a { color: var(--ceniza); text-decoration: none; }
.md-toc a:hover { color: var(--ambar); }
.md-toc .n3 { padding-left: 12px; font-size: 12px; }
@media (max-width: 860px) { .md-toc { position: static; max-height: none; } .md-toc details:not([open]) ul { display: none; } }
.md-toc summary { cursor: pointer; margin-bottom: 10px; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--humo); }
.md { min-width: 0; max-width: 780px; line-height: 1.65; }
.md h1 { margin: 0 0 16px; font: 400 clamp(32px, 5vw, 46px)/1.1 var(--serif); }
.md h2 { margin: 48px 0 12px; padding-top: 16px; border-top: 1px solid var(--muro); font: 400 30px/1.15 var(--serif); }
.md h3 { margin: 28px 0 8px; font: 600 17px var(--sans); color: var(--ambar); }
.md h4, .md h5, .md h6 { margin: 20px 0 6px; font: 600 15px var(--sans); }
.md :is(h1, h2, h3, h4) { scroll-margin-top: 16px; }
.md p, .md ul, .md ol, .md blockquote, .md pre, .md-tabla { margin: 0 0 14px; }
.md ul, .md ol { padding-left: 22px; }
.md li { margin: 4px 0; }
.md li > :is(ul, ol) { margin: 4px 0 0; }
.md a { color: var(--ambar); }
.md strong { color: var(--pergamino); }
.md code { padding: 1px 5px; border-radius: 5px; background: var(--muro); font: 400 .88em var(--mono); }
.md pre { padding: 14px; border-radius: 10px; background: var(--superficie); border: 1px solid var(--muro); overflow: auto; }
.md pre code { padding: 0; background: none; }
.md blockquote { padding: 4px 16px; border-left: 3px solid var(--ambar); color: var(--ceniza); }
.md hr { border: 0; border-top: 1px solid var(--muro); margin: 28px 0; }
.md-tabla { overflow-x: auto; }
.md table { border-collapse: collapse; font-size: 14px; min-width: 100%; }
.md th, .md td { padding: 8px 10px; border-bottom: 1px solid var(--muro); text-align: left; vertical-align: top; }
.md th { font: 500 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--humo); }
.md-error { color: var(--ceniza); }