/* ===========================================================
   Alitter 2026 — Blog
   Usa los tokens de site.css (tema oscuro, rojo #D81E2D, glows)
   =========================================================== */

/* ─────────── migas de pan ─────────── */
.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .45rem;
    font-family: var(--mono);
    font-size: .75rem;
    letter-spacing: .04em;
    color: var(--text-soft);
    margin-bottom: 2rem;
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: #fff; }
.breadcrumbs i { font-size: .65rem; opacity: .6; }
.breadcrumbs [aria-current] { color: var(--text-2); }

/* ─────────── cabecera del listado ─────────── */
.blog-hero {
    padding: 150px 0 40px;
}
.blog-hero::before {
    top: -30%; left: -10%;
    width: 70%; height: 120%;
    background: radial-gradient(ellipse at center, rgba(216, 30, 45, 0.26), transparent 60%);
}
.blog-hero::after {
    top: -10%; right: -15%;
    width: 50%; height: 90%;
    background: radial-gradient(ellipse at center, rgba(234, 88, 12, 0.14), transparent 60%);
}
.blog-hero-head { max-width: 780px; margin-bottom: 2.5rem; }
.blog-title {
    font-size: clamp(2.2rem, 4.6vw, 3.6rem);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.05;
    margin-bottom: 1.25rem;
}
.blog-title .accent,
.post-title .accent {
    background: linear-gradient(100deg, #ff2d3d 0%, #ff6a2b 55%, #f59e0b 100%);
    -webkit-background-clip: text;
            background-clip: text;
    color: transparent;
}
.blog-title-icon {
    color: var(--red-bright);
    font-size: .8em;
    vertical-align: .05em;
    margin-right: .25rem;
}

/* filtros por categoría */
.cat-filter {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}
.cat-pill {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .5rem .95rem;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-2);
    font-size: .88rem;
    font-weight: 500;
    transition: background .15s, border-color .15s, color .15s;
}
.cat-pill i { opacity: .7; }
.cat-pill:hover { background: rgba(255, 255, 255, 0.07); color: #fff; border-color: rgba(255, 255, 255, 0.3); }
.cat-pill.active {
    background: rgba(216, 30, 45, 0.16);
    border-color: rgba(216, 30, 45, 0.55);
    color: #fff;
}
.cat-pill.active i { color: var(--red-bright); opacity: 1; }
.cat-count {
    font-family: var(--mono);
    font-size: .7rem;
    color: var(--text-soft);
    background: rgba(255, 255, 255, 0.06);
    border-radius: 999px;
    padding: .05rem .45rem;
}

.blog-list-section { padding-top: 30px; }

/* ─────────── tarjetas de artículo ─────────── */
.post-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}
.post-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--r-xl);
    overflow: hidden;
    backdrop-filter: blur(8px);
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.post-card:hover {
    transform: translateY(-4px);
    border-color: rgba(216, 30, 45, 0.45);
    background: var(--bg-card-hover);
    box-shadow: 0 20px 40px -18px rgba(216, 30, 45, 0.45);
}
/* el enlace cubre toda la tarjeta; el chip de categoría queda por encima */
.post-card-link { position: absolute; inset: 0; z-index: 1; }
.post-card .post-chip { position: relative; z-index: 2; }

.post-card-visual {
    position: relative;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(circle at 25% 30%, var(--tone-a), transparent 55%),
        radial-gradient(circle at 80% 85%, var(--tone-b), transparent 55%),
        #0f0e16;
}
.post-card-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 26px 26px;
    -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
            mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}
.post-card-visual i {
    position: relative;
    z-index: 1;
    font-size: 2.6rem;
    color: #fff;
    filter: drop-shadow(0 6px 22px var(--tone-a));
    transition: transform .3s ease;
}
.post-card:hover .post-card-visual i { transform: scale(1.1) rotate(-4deg); }

.tone-red    { --tone-a: rgba(216, 30, 45, 0.55);  --tone-b: rgba(234, 88, 12, 0.30); }
.tone-amber  { --tone-a: rgba(245, 158, 11, 0.45); --tone-b: rgba(216, 30, 45, 0.30); }
.tone-teal   { --tone-a: rgba(13, 148, 136, 0.45); --tone-b: rgba(216, 30, 45, 0.25); }
.tone-orange { --tone-a: rgba(234, 88, 12, 0.50);  --tone-b: rgba(245, 158, 11, 0.25); }

.post-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.4rem 1.5rem 1.5rem;
}
.post-chip {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-family: var(--mono);
    font-size: .68rem;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: #ffb3ba;
    background: rgba(216, 30, 45, 0.12);
    border: 1px solid rgba(216, 30, 45, 0.35);
    border-radius: 999px;
    padding: .28rem .65rem;
    margin-bottom: .9rem;
}
.post-chip:hover { color: #fff; background: rgba(216, 30, 45, 0.25); }
.post-card-title {
    overflow-wrap: anywhere;
    font-size: 1.15rem;
    line-height: 1.3;
    letter-spacing: -0.015em;
    margin-bottom: .6rem;
}
.post-card-excerpt {
    color: var(--text-muted);
    font-size: .93rem;
    line-height: 1.55;
    margin-bottom: 1.1rem;
    flex: 1;
}
.post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .45rem;
    font-family: var(--mono);
    font-size: .72rem;
    color: var(--text-soft);
}
.post-meta .sep { opacity: .5; }
.post-meta i { margin-right: .2rem; }

/* estado vacío */
.blog-empty {
    text-align: center;
    padding: 4rem 1.5rem;
    border: 1px dashed var(--line-strong);
    border-radius: var(--r-xl);
    background: rgba(255, 255, 255, 0.02);
}
.blog-empty i { font-size: 2.8rem; color: var(--red-bright); display: block; margin-bottom: 1rem; }
.blog-empty h2 { font-size: 1.6rem; }
.blog-empty p { color: var(--text-muted); margin-bottom: 1.5rem; }

/* paginación */
.pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
}
.pager-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .6rem 1.1rem;
    border-radius: var(--r-md);
    border: 1px solid var(--line-strong);
    color: var(--text-2);
    font-weight: 500;
    font-size: .9rem;
}
.pager-btn:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
.pager-info { font-family: var(--mono); font-size: .78rem; color: var(--text-soft); }

/* ─────────── bloque CTA ─────────── */
.blog-cta {
    position: relative;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 2rem;
    align-items: center;
    margin-top: 4.5rem;
    padding: 2.75rem;
    border-radius: 24px;
    border: 1px solid rgba(216, 30, 45, 0.35);
    background:
        radial-gradient(ellipse at 0% 0%, rgba(216, 30, 45, 0.30), transparent 55%),
        radial-gradient(ellipse at 100% 100%, rgba(245, 158, 11, 0.16), transparent 55%),
        rgba(255, 255, 255, 0.03);
    overflow: hidden;
}
.blog-cta h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); margin-bottom: .75rem; }
.blog-cta p { color: var(--text-2); margin: 0; line-height: 1.6; }
.blog-cta-actions { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: flex-end; }

/* ─────────── artículo ─────────── */
.preview-banner {
    position: relative;
    z-index: 5;
    margin-top: 76px;
    padding: .8rem 0;
    background: rgba(245, 158, 11, 0.14);
    border-bottom: 1px solid rgba(245, 158, 11, 0.4);
    color: #fde68a;
    font-size: .9rem;
}
.preview-banner + .post .post-hero { padding-top: 70px; }

.post-hero {
    padding: 150px 0 40px;
}
.post-hero::before {
    top: -35%; left: -10%;
    width: 75%; height: 130%;
    background: radial-gradient(ellipse at center, var(--tone-a), transparent 62%);
    opacity: .55;
}
.post-hero::after {
    top: 0; right: -20%;
    width: 55%; height: 100%;
    background: radial-gradient(ellipse at center, var(--tone-b), transparent 62%);
    opacity: .5;
}
.post-hero-inner { max-width: 860px; }
.post-title {
    font-size: clamp(2rem, 4.2vw, 3.3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.08;
    margin-bottom: 1.25rem;
    overflow-wrap: anywhere;
}
.post-lead {
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    color: var(--text-2);
    line-height: 1.6;
    max-width: 70ch;
    margin-bottom: 1.5rem;
}
.post-meta-lg { font-size: .78rem; gap: .6rem; }

.post-body-section { padding-top: 30px; }
.post-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 4rem;
    align-items: start;
}
.post-main { min-width: 0; max-width: 760px; }

.post-aside-sticky {
    position: sticky;
    top: 110px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.toc {
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    background: rgba(255, 255, 255, 0.025);
    padding: 1.25rem 1.25rem 1rem;
}
.toc-title {
    font-family: var(--mono);
    font-size: .7rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--text-soft);
    margin-bottom: .75rem;
}
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li { counter-increment: toc; margin-bottom: .2rem; }
.toc a {
    display: flex;
    gap: .6rem;
    padding: .35rem .5rem;
    border-radius: 6px;
    font-size: .87rem;
    line-height: 1.35;
    color: var(--text-muted);
    border-left: 2px solid transparent;
}
.toc a::before {
    content: counter(toc, decimal-leading-zero);
    font-family: var(--mono);
    font-size: .7rem;
    color: var(--text-soft);
    padding-top: .12rem;
}
.toc a:hover { color: #fff; background: rgba(255, 255, 255, 0.04); }
.toc a.active { color: #fff; border-left-color: var(--red); background: rgba(216, 30, 45, 0.08); }

.aside-cta {
    border-radius: var(--r-lg);
    padding: 1.4rem;
    border: 1px solid rgba(216, 30, 45, 0.4);
    background:
        radial-gradient(ellipse at 0% 0%, rgba(216, 30, 45, 0.28), transparent 65%),
        rgba(255, 255, 255, 0.03);
}
.aside-cta-icon {
    width: 40px; height: 40px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(216, 30, 45, 0.2);
    color: #ff8a93;
    font-size: 1.2rem;
    margin-bottom: .9rem;
}
.aside-cta h3 { font-size: 1.05rem; margin-bottom: .4rem; }
.aside-cta p { color: var(--text-muted); font-size: .88rem; line-height: 1.5; margin-bottom: 1rem; }

/* ─────────── tipografía del cuerpo ─────────── */
.prose {
    color: var(--text-2);
    font-size: 1.075rem;
    line-height: 1.8;
}
.prose > *:first-child { margin-top: 0; }
.prose p { margin: 0 0 1.35rem; }
.prose h2 {
    font-size: clamp(1.5rem, 2.4vw, 1.95rem);
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin: 3rem 0 1.1rem;
    scroll-margin-top: 100px;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
}
.prose h3 {
    font-size: 1.28rem;
    margin: 2.2rem 0 .8rem;
    scroll-margin-top: 100px;
}
.prose h4 {
    font-size: 1.05rem;
    margin: 1.8rem 0 .6rem;
    color: var(--text);
}
.prose strong { color: #fff; font-weight: 600; }
.prose em { color: var(--text); }
.prose a {
    color: #ff8a93;
    text-decoration: underline;
    text-decoration-color: rgba(255, 138, 147, 0.4);
    text-underline-offset: 3px;
}
.prose a:hover { color: #fff; text-decoration-color: var(--red); }
.prose ul, .prose ol { margin: 0 0 1.5rem; padding-left: 1.4rem; }
.prose li { margin-bottom: .55rem; padding-left: .25rem; }
.prose ul li::marker { color: var(--red-bright); }
.prose ol li::marker { color: var(--red-bright); font-family: var(--mono); font-size: .9em; }
.prose li > ul, .prose li > ol { margin: .5rem 0 0; }
.prose blockquote {
    margin: 2rem 0;
    padding: 1.25rem 1.5rem;
    border-left: 3px solid var(--red);
    border-radius: 0 var(--r-md) var(--r-md) 0;
    background: rgba(216, 30, 45, 0.07);
    color: var(--text);
    font-size: 1.05rem;
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose hr { border: 0; border-top: 1px solid var(--line-strong); margin: 2.5rem 0; opacity: 1; }
.prose hr + h2 { border-top: 0; padding-top: 0; margin-top: 0; }
.prose code {
    font-family: var(--mono);
    font-size: .86em;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: .1rem .38rem;
    color: #ffd0d4;
}
.prose pre {
    background: #07070b;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    padding: 1.1rem 1.25rem;
    overflow-x: auto;
    margin: 0 0 1.5rem;
    font-size: .88rem;
    line-height: 1.6;
}
.prose pre code { background: none; border: 0; padding: 0; color: var(--text-2); font-size: 1em; }
.prose img { border-radius: var(--r-md); margin: 2rem auto; border: 1px solid var(--line); }

.table-wrap {
    overflow-x: auto;
    margin: 0 0 1.75rem;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
}
.prose table {
    width: 100%;
    border-collapse: collapse;
    font-size: .93rem;
    line-height: 1.5;
}
.prose th, .prose td {
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}
.prose th {
    background: rgba(216, 30, 45, 0.1);
    color: #fff;
    font-weight: 600;
    font-size: .85rem;
    white-space: nowrap;
}
.prose tbody tr:last-child td { border-bottom: 0; }
.prose tbody tr:nth-child(even) td { background: rgba(255, 255, 255, 0.02); }

/* FAQ del artículo (reutiliza .faq-item de site.css) */
.post-faq { margin-top: 3.5rem; }
.post-faq h2 {
    font-size: clamp(1.5rem, 2.4vw, 1.95rem);
    margin-bottom: 1.25rem;
}

.post-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 2.5rem; }
.post-tag {
    font-family: var(--mono);
    font-size: .74rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: .25rem .55rem;
}

.post-share {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
    font-family: var(--mono);
    font-size: .75rem;
    color: var(--text-soft);
    text-transform: uppercase;
    letter-spacing: .08em;
}
.post-share a {
    width: 36px; height: 36px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 8px;
    border: 1px solid var(--line-strong);
    color: var(--text-2);
    font-size: 1rem;
}
.post-share a:hover { background: rgba(216, 30, 45, 0.18); border-color: rgba(216, 30, 45, 0.5); color: #fff; }

.related { margin-top: 4.5rem; }
.related-title { font-size: clamp(1.6rem, 2.6vw, 2.1rem); margin-bottom: 1.75rem; }

/* ─────────── responsive ─────────── */
@media (max-width: 1100px) {
    .post-layout { grid-template-columns: minmax(0, 1fr) 260px; gap: 2.5rem; }
}
@media (max-width: 991.98px) {
    .post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .post-layout { grid-template-columns: minmax(0, 1fr); }
    .post-main { max-width: none; }
    .post-aside { order: -1; }
    .post-aside-sticky { position: static; }
    .post-aside .aside-cta { display: none; } /* en móvil ya está el CTA grande al final */
    .blog-cta { grid-template-columns: 1fr; }
    .blog-cta-actions { justify-content: flex-start; }
}
@media (max-width: 640px) {
    .blog-hero, .post-hero { padding-top: 120px; }
    .post-grid { grid-template-columns: minmax(0, 1fr); }
    .blog-cta { padding: 1.75rem 1.4rem; margin-top: 3rem; }
    .prose { font-size: 1.02rem; line-height: 1.75; }
    .prose th, .prose td { padding: .6rem .7rem; }
}