/* Recursos: blog en preparación + guía. Usa tokens y componentes de styles.css. */
.rh { position: relative; isolation: isolate; padding: clamp(48px, 7vw, 88px) 0 clamp(56px, 7vw, 88px); }
.rh__bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; background:
  radial-gradient(55% 80% at 90% 10%, rgba(0,104,232,.14), transparent 70%),
  linear-gradient(180deg, #fff 0%, var(--sky) 100%); }
.rh h1 { font-size: clamp(2.3rem, 5vw, 4rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.02; margin-bottom: 20px; }
.rh .lead { max-width: 680px; margin-bottom: clamp(32px, 5vw, 48px); }

/* próximamente: tarjeta sobre una vista previa de artículos */
.soon { position: relative; }
.soon__grid { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; opacity: .7; -webkit-mask-image: linear-gradient(180deg, #000 40%, transparent); mask-image: linear-gradient(180deg, #000 40%, transparent); }
.sk { display: grid; gap: 10px; padding: 14px 14px 22px; border-radius: 18px; background: #fff; border: 1px solid var(--line); }
.sk__img { display: block; aspect-ratio: 16 / 10; border-radius: 12px; background: #E8EFF8; }
.sk__l { display: block; height: 10px; border-radius: 6px; background: #E8EFF8; }
.sk__l--s { width: 35%; } .sk__l--m { width: 70%; }
.sk__img, .sk__l { background: linear-gradient(100deg, #E8EFF8 30%, #F5F9FE 50%, #E8EFF8 70%) 0 0 / 300% 100%; animation: sk-shine 2.2s ease-in-out infinite; }
@keyframes sk-shine { from { background-position: 100% 0; } to { background-position: 0 0; } }
.soon__card { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -46%); width: min(560px, calc(100% - 32px)); padding: clamp(24px, 3.5vw, 36px); text-align: center;
  background: rgba(255,255,255,.96); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-lift); }
.soon__badge { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 14px; padding: 6px 14px; border-radius: 999px; background: #FFF3D6; color: #8A5A00; font-weight: 700; font-size: .9rem; }
.soon__badge svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.soon__card h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 12px; }
.soon__card p:not(.soon__badge) { margin: 0 auto 22px; max-width: 440px; }
.soon__ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }

/* último artículo */
.posts__title { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 22px; }
.post { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(22px, 4vw, 48px); align-items: center; padding: 18px; border-radius: 26px; background: #fff; border: 1px solid var(--line); transition: border-color .2s, box-shadow .3s var(--ease); }
.post:hover { border-color: #B9CCE6; box-shadow: 0 30px 60px -40px rgba(7,27,72,.55); }
.post__media { display: block; overflow: hidden; border-radius: 18px; }
.post__media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform .6s var(--ease); }
.post:hover .post__media img { transform: scale(1.04); }
.post__cat { margin: 0 0 8px; font-weight: 700; color: var(--blue-700); }
.post h3 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); letter-spacing: -.02em; line-height: 1.15; margin-bottom: 12px; }
.post h3 a { color: var(--navy); text-decoration: none; }
.post h3 a:hover { color: var(--blue-700); }
.post__body > p:not(.post__cat):not(.post__meta) { color: var(--ink-2); }
.post__meta { display: flex; align-items: center; gap: 10px; margin: 0 0 16px; font-size: .9rem; color: var(--ink-2); }
.post__meta strong { color: var(--navy); }

/* artículo */
.read-progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 200; pointer-events: none; }
.read-progress span { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--blue), #7CC0FF); transform: scaleX(0); transform-origin: left; }
.art__head { position: relative; isolation: isolate; padding: clamp(32px, 5vw, 56px) 0 clamp(120px, 14vw, 180px); }
.art__head-bg { position: absolute; inset: 0; z-index: -1; background: radial-gradient(55% 80% at 90% 0%, rgba(0,104,232,.14), transparent 70%), linear-gradient(180deg, #fff 0%, var(--sky) 100%); }
.art__narrow { max-width: 860px; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 26px; font-size: .9rem; color: var(--ink-3); }
.crumbs li + li::before { content: "›"; margin-right: 6px; color: #9DB0CC; }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--blue-700); text-decoration: underline; }
.art__cat { display: inline-block; margin: 0 0 14px; padding: 5px 12px; border-radius: 999px; background: var(--sky-2); color: var(--blue-700); font-weight: 700; font-size: .9rem; }
.art h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.05; margin-bottom: 16px; }
.art__dek { margin: 0 0 26px; font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.55; color: var(--ink-2); max-width: 680px; }
.art__meta { display: flex; align-items: center; gap: 12px; }
.art__avatar { display: grid; place-items: center; width: 42px; height: 42px; flex: none; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 800; }
.art__by { display: grid; font-size: .92rem; color: var(--ink-2); line-height: 1.35; }
.art__by strong { color: var(--navy); }
.art__cover-wrap { position: relative; z-index: 1; margin-top: clamp(-150px, -12vw, -100px); }
.art__cover { margin: 0 auto; max-width: 860px; }
.art__cover img { width: 100%; aspect-ratio: 21 / 9; object-fit: cover; border-radius: 26px; box-shadow: var(--shadow-lift); }
.art__layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 680px) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); padding-top: clamp(40px, 6vw, 72px); padding-bottom: clamp(56px, 8vw, 96px); }
.art__toc { position: sticky; top: 130px; align-self: start; }
.art__toc summary { list-style: none; cursor: default; margin-bottom: 12px; font-weight: 700; color: var(--navy); font-size: .95rem; }
.art__toc summary::-webkit-details-marker { display: none; }
.art__toc ol { list-style: none; display: grid; gap: 2px; border-left: 2px solid var(--line); counter-reset: toc; }
.art__toc li { counter-increment: toc; }
.art__toc a { display: block; padding: 6px 10px 6px 14px; margin-left: -2px; border-left: 2px solid transparent; font-size: .88rem; line-height: 1.35; color: var(--ink-3); text-decoration: none; transition: color .2s, border-color .2s; }
.art__toc a::before { content: counter(toc, decimal-leading-zero) "  "; font-weight: 800; font-size: .78rem; }
.art__toc a:hover, .art__toc a.is-current { color: var(--blue-700); border-left-color: var(--blue); }
.art__body { grid-column: 2; font-size: 1.12rem; line-height: 1.8; color: #2B3D5A; }
.art__lead { font-size: 1.28rem; line-height: 1.7; color: var(--navy); margin-bottom: 36px; }
.art__lead::first-letter { float: left; font-size: 3.4em; line-height: .9; font-weight: 800; color: var(--blue); margin: .08em .1em 0 0; }
.art__body h2 { display: flex; align-items: baseline; gap: 14px; margin: 48px 0 14px; font-size: clamp(1.45rem, 2.4vw, 1.8rem); letter-spacing: -.02em; line-height: 1.2; scroll-margin-top: 130px; }
.art-n { flex: none; font-size: .85rem; font-weight: 800; color: var(--blue); padding: 4px 9px; border-radius: 8px; background: var(--sky); transform: translateY(-3px); }
.art__body p { margin: 0 0 18px; }
.art__body ul { list-style: none; display: grid; gap: 8px; margin: 0 0 20px; padding: 18px 22px; border-radius: 16px; background: #F7FAFE; border: 1px solid var(--line); }
.art__body ul li { position: relative; padding-left: 24px; color: var(--navy); }
.art__body ul li::before { content: ""; position: absolute; left: 4px; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
.art__sum { margin: 48px 0 36px; padding: 26px 28px; border-left: 4px solid var(--blue); border-radius: 0 18px 18px 0; background: var(--sky); }
.art__sum-t { margin: 0 0 6px !important; font-weight: 800; color: var(--blue-700); font-size: 1rem; }
.art__sum p:last-child { margin: 0; color: var(--navy); font-size: 1.15rem; line-height: 1.7; }
.share { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; padding: 18px 0; margin-bottom: 32px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.share__t { margin: 0 !important; font-weight: 700; color: var(--navy); font-size: 1rem; }
.share__btns { display: flex; align-items: center; gap: 8px; }
.share__b { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: #fff; color: var(--navy); cursor: pointer; transition: background-color .2s, color .2s, border-color .2s, transform .2s var(--ease); }
.share__b svg { width: 18px; height: 18px; fill: currentColor; }
.share__b:hover { background: var(--blue); border-color: var(--blue); color: #fff; transform: translateY(-2px); }
.share__b:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.share__ok { font-size: .85rem; color: var(--green-ink); font-weight: 650; }
.art__cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 24px; padding: 26px 28px; line-height: 1.5; }
.art__cta p { margin: 0; color: #C9D6EE; font-size: 1rem; }
.art__cta .art__cta-t { margin-bottom: 4px; font-size: 1.25rem; font-weight: 750; color: #fff; }
.art__cta-btns { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.art__cta-link { font-weight: 650; font-size: 1rem; }
.art__back { margin: 28px 0 0 !important; font-size: 1rem; }
.art__back a { font-weight: 650; text-decoration: none; }

@media (max-width: 1180px) {
  .art__layout { grid-template-columns: minmax(0, 220px) minmax(0, 1fr); }
  .art__body { grid-column: 2; }
}
@media (max-width: 960px) {
  .post { grid-template-columns: 1fr; }
  .art__layout { grid-template-columns: 1fr; padding-top: 32px; }
  .art__body { grid-column: 1; }
  .art__toc { position: static; padding: 14px 18px; border-radius: 16px; background: #F7FAFE; border: 1px solid var(--line); }
  .art__toc summary { cursor: pointer; margin: 0; display: flex; justify-content: space-between; }
  .art__toc summary::after { content: "+"; font-weight: 700; color: var(--blue); }
  .art__toc details[open] summary { margin-bottom: 10px; }
  .art__toc details[open] summary::after { content: "–"; }
}
@media (max-width: 760px) {
  .soon__grid { grid-template-columns: 1fr; }
  .soon__grid .sk:nth-child(n+2) { display: none; }
  .soon { display: grid; }
  .soon__card { position: relative; left: auto; top: auto; transform: none; width: auto; margin-top: -120px; }
  .art__cover img { aspect-ratio: 16 / 10; border-radius: 18px; }
  .art__body { font-size: 1.05rem; }
  .art__lead { font-size: 1.15rem; }
  .art__body h2 { margin-top: 38px; }
  .post { padding: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .sk__img, .sk__l { animation: none; }
  .post, .post__media img, .share__b, .art__toc a { transition: none; }
  .post:hover .post__media img { transform: none; }
}
.art__cta .btn--light, .art__cta .btn--light:hover { color: var(--navy); text-decoration: none; }