/* ============================================================
   Tutoriales — documentación técnica, no entrada de blog
   Contenido propio migrado desde el WordPress que va a desaparecer.
   Usa los tokens de propuesta.css; aquí se resuelve la lectura larga:
   índice lateral fijo, pasos numerados y bloques de código utilizables.
   ============================================================ */

/* ---- barra de progreso de lectura ---- */
.read-progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 90; pointer-events: none; }
.read-progress i { display: block; height: 100%; background: var(--brand); transform: scaleX(0); transform-origin: 0 50%; }

/* ---- cabecera del artículo: banda navy, como el resto del sistema ---- */
.art-hero {
  background: linear-gradient(158deg, #0b3b8e 0%, var(--brand) 52%, #011f58 100%);
  color: #fff; padding: clamp(38px, 5.5vw, 74px) 0 clamp(40px, 5.5vw, 66px);
}
.art-hero .wrap { max-width: 1180px; }
.crumbs { font: 12px var(--mono); letter-spacing: .1em; color: var(--muted); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--brand); }
.art-hero .crumbs { color: #9fb8e2; margin-bottom: clamp(22px, 3vw, 34px); }
.art-hero .crumbs a { color: #9fb8e2; }
.art-hero .crumbs a:hover { color: #fff; }

.art-kicker { font: 12px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: #7fb0f2; }
.art-hero h1 {
  font-size: clamp(30px, 4vw, 50px); letter-spacing: -.035em; line-height: 1.06;
  margin: 14px 0 0; max-width: 22ch; color: #fff;
}
.art-lede { margin-top: 20px; max-width: 60ch; font-size: clamp(16.5px, 1.5vw, 19px); line-height: 1.6; color: #c2d3ee; }
.art-facts {
  list-style: none; margin: clamp(26px, 3.4vw, 36px) 0 0; padding: 20px 0 0;
  border-top: 1px solid #1e4c9c; display: flex; flex-wrap: wrap; gap: 10px 34px;
  font: 12px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: #9fb8e2;
}
.art-facts b { font-family: var(--font); font-size: 17px; font-weight: 700; letter-spacing: -.02em; color: #fff; margin-right: 5px; }

/* ---- disposición: índice + cuerpo ---- */
.article { padding: clamp(34px, 5vw, 64px) 0 clamp(56px, 8vw, 100px); }
.article .wrap { max-width: 1180px; }
.art-layout { display: grid; gap: clamp(30px, 4vw, 64px); grid-template-columns: 1fr; }
@media (min-width: 1080px) {
  .art-layout { grid-template-columns: 244px minmax(0, 1fr); align-items: start; }
}

/* ---- índice lateral ---- */
.art-toc { min-width: 0; }
@media (min-width: 1080px) { .toc-inner { position: sticky; top: 96px; } }
.toc-title { font: 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.toc-list { list-style: none; margin: 14px 0 0; padding: 0; border-left: 1px solid var(--line); }
.toc-list a {
  display: grid; grid-template-columns: 26px 1fr; gap: 8px; align-items: baseline;
  padding: 9px 0 9px 14px; margin-left: -1px; border-left: 2px solid transparent;
  text-decoration: none; color: var(--muted); font-size: 14px; line-height: 1.4;
  transition: color .18s, border-color .18s;
}
.toc-list a:hover { color: var(--ink); }
.toc-list a[aria-current="true"] { color: var(--brand); border-left-color: var(--brand); font-weight: 600; }
.toc-n { font: 11px var(--mono); letter-spacing: .06em; color: var(--muted); }
.toc-list a[aria-current="true"] .toc-n { color: var(--brand); }
.toc-back {
  display: inline-block; margin-top: 22px; font-size: 13.5px; font-weight: 600;
  color: var(--brand); text-decoration: none; border-bottom: 1px solid var(--line); padding-bottom: 3px;
}
.toc-back:hover { border-bottom-color: var(--brand); }

/* en pantallas angostas el índice va arriba, en su propia tarjeta */
@media (max-width: 1079px) {
  .art-toc { background: #fff; border: 1px solid var(--line); border-radius: 6px 22px 22px 6px; padding: 18px 20px; }
  .toc-list { max-height: 232px; overflow-y: auto; }
}

/* ---- cuerpo ---- */
.art-main { min-width: 0; }
.art-body { max-width: 68ch; font-size: 17.5px; line-height: 1.72; color: var(--ink); }
.art-body > * + * { margin-top: 22px; }

/* los pasos: el número es estructura, no adorno */
.art-body h2 {
  display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: baseline;
  font-size: clamp(22px, 2.2vw, 29px); letter-spacing: -.03em; line-height: 1.18;
  margin-top: clamp(46px, 5vw, 66px); padding-top: 24px; border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}
.art-body h2 .stepn {
  font: 600 13px var(--mono); letter-spacing: .04em; color: var(--brand);
  background: #e7edf8; border-radius: 6px; padding: 5px 9px; align-self: start;
  position: relative; top: -2px;
}
.art-body h2.art-done .stepn { background: #e4f4ec; color: #186b4d; }
.art-body h3 { font-size: clamp(17.5px, 1.7vw, 20px); letter-spacing: -.02em; margin-top: 32px; }
.art-body h2 + *, .art-body h3 + * { margin-top: 14px; }

.art-body ul, .art-body ol { padding-left: 22px; }
.art-body li + li { margin-top: 9px; }
.art-body li::marker { color: var(--brand); }
.art-body a { color: var(--brand); text-underline-offset: 3px; }
.art-body strong { color: var(--ink); }

/* citas: notas destacadas del autor */
.art-body blockquote {
  margin: 30px 0; padding: 20px 24px;
  background: #eef2f9; border-left: 3px solid var(--brand); border-radius: 3px 14px 14px 3px;
}
.art-body blockquote p { margin: 0; font-size: 17.5px; font-weight: 600; color: var(--brand); line-height: 1.5; }
.art-body figure { margin: 0; }
.art-body figure blockquote { margin: 0; }

/* ---- código, con botón de copiar ---- */
.pre-wrap { position: relative; margin: 26px 0; }
.art-body pre {
  margin: 0; padding: 20px 22px; overflow-x: auto;
  background: #08172e; color: #dbe6f8; border-radius: 4px 16px 16px 4px;
  font: 13.5px/1.7 var(--mono); tab-size: 2;
}
.art-body pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
.art-body :not(pre) > code {
  background: #eef2f9; color: var(--brand); padding: 2px 6px; border-radius: 4px;
  font: 14px var(--mono); word-break: break-word;
}
.copy-btn {
  position: absolute; top: 10px; right: 10px;
  background: rgba(255,255,255,.1); color: #dbe6f8; border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px; padding: 5px 12px; cursor: pointer;
  font: 600 11.5px var(--font); letter-spacing: .02em;
  opacity: 0; transition: opacity .18s, background-color .18s;
}
.pre-wrap:hover .copy-btn, .copy-btn:focus-visible { opacity: 1; }
.copy-btn:hover { background: rgba(255,255,255,.2); }
.copy-btn.done { background: #186b4d; border-color: #186b4d; color: #fff; opacity: 1; }

/* ---- tablas: se desplazan solas, nunca rompen la página ---- */
.art-body table { width: 100%; border-collapse: collapse; margin: 26px 0; font-size: 15.5px; display: block; overflow-x: auto; }
.art-body th, .art-body td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.art-body th { font-weight: 600; color: var(--ink); background: #eef2f9; white-space: nowrap; }
.art-body td { color: var(--muted); }

/* ---- cierre ---- */
.art-cta {
  margin-top: clamp(46px, 6vw, 70px); padding: clamp(24px, 3vw, 34px);
  background: var(--paper); border: 1px solid var(--line); border-radius: 6px 26px 26px 6px;
  display: flex; flex-wrap: wrap; gap: 18px 30px; align-items: center; justify-content: space-between;
}
.art-cta p { margin: 0; max-width: 46ch; font-size: 16px; color: var(--muted); }
.art-cta b { color: var(--ink); }
.btn-dark { background: var(--brand); color: #fff; border-color: var(--brand); }
.btn-dark:hover { background: var(--night); border-color: var(--night); }

.art-nav { margin-top: 26px; display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .art-nav { grid-template-columns: 1fr 1fr; } }
.art-nav a {
  border: 1px solid var(--line); border-radius: 4px 20px 20px 4px; padding: 18px 22px;
  text-decoration: none; background: #fff; transition: border-color .2s, transform .2s;
}
.art-nav a:hover { border-color: var(--brand); transform: translateY(-2px); }
.art-nav small { display: block; font: 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.art-nav b { display: block; margin-top: 7px; font-size: 16.5px; letter-spacing: -.015em; color: var(--ink); }
.art-nav-next { text-align: right; }

/* ---- índice de tutoriales ---- */
.art-index { padding: clamp(34px, 5vw, 64px) 0 clamp(56px, 8vw, 100px); }
.art-index .wrap { max-width: 1180px; }
.art-index .art-kicker { color: var(--brand); }
.art-index h1 { font-size: clamp(31px, 4.4vw, 55px); letter-spacing: -.035em; line-height: 1.06; margin: 14px 0 0; max-width: 16ch; }
.art-index .art-lede { color: var(--muted); }
.resource-grid { margin-top: clamp(34px, 5vw, 52px); display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .resource-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1080px) { .resource-grid { grid-template-columns: repeat(3, 1fr); } }
.art-index .resource-card {
  display: block; background: #fff; border: 1px solid var(--line);
  border-radius: 6px 26px 26px 6px; padding: 24px 24px 26px; text-decoration: none;
  transition: border-color .2s, transform .2s;
}
.art-index .resource-card:hover { border-color: var(--brand); transform: translateY(-3px); }
.art-index .resource-top { display: flex; justify-content: space-between; gap: 12px; font: 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.art-index .resource-card h2 { margin-top: 16px; font-size: 20px; letter-spacing: -.024em; line-height: 1.28; color: var(--ink); }
.art-index .resource-card p { margin-top: 10px; font-size: 15px; line-height: 1.55; color: var(--muted); }
.art-index .resource-card .text-link { margin-top: 20px; display: inline-block; }

/* usado en la home, junto al enlace del canal */
.resource-actions { display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center; }

@media (prefers-reduced-motion: reduce) {
  .art-nav a:hover, .art-index .resource-card:hover { transform: none; }
  .read-progress i { transition: none; }
}