/* blog.css — páginas del blog de Virtual Bit (usa también styles_index.css) */
.blog-page { background: #fff; }
.preview-bar { position: fixed; z-index: 2000; left: 0; right: 0; bottom: 0; background: #8a5300; color: #fff; text-align: center; font-weight: 700; padding: 0.6rem; }

/* Portada del blog */
.blog-hero, .post-hero {
    background: var(--gradient);
    color: #fff;
    padding: calc(var(--header-h) + 3.5rem) 2rem 3.5rem;
    position: relative;
}
.blog-hero::after, .post-hero::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: var(--tech-gradient); }
.blog-hero-inner, .post-hero-inner { max-width: 860px; margin: 0 auto; }
.blog-hero-inner { text-align: center; }
.blog-kicker { font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--vb-turquoise); font-size: 0.85rem; margin-bottom: 0.6rem; }
.blog-hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin-bottom: 1rem; }
.blog-hero p { color: #D7E2F1; font-size: clamp(1rem, 2vw, 1.15rem); max-width: 640px; margin: 0 auto; }

.blog-wrap { max-width: 1200px; margin: 0 auto; padding: 2.5rem 2rem 4rem; }
.blog-cats { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; margin-bottom: 2.5rem; }
.blog-cats a {
    padding: 0.5rem 1rem; border-radius: 999px; border: 1px solid #DDE5EF; background: #fff;
    color: var(--text-muted); font-weight: 600; font-size: 0.92rem; text-decoration: none;
}
.blog-cats a:hover { color: var(--vb-deep); border-color: #b9c6dd; }
.blog-cats a[aria-current="page"] { background: var(--vb-deep); border-color: var(--vb-deep); color: #fff; }
.blog-pages { display: flex; justify-content: center; align-items: center; gap: 1.5rem; margin-top: 2.5rem; color: var(--text-muted); }
.blog-pages a { color: var(--secondary); font-weight: 700; text-decoration: none; }
.blog-empty { text-align: center; padding: calc(var(--header-h) + 2rem) 1rem 3rem; max-width: 620px; margin: 0 auto; }
.blog-wrap .blog-empty { padding-top: 1rem; }
.blog-empty h1, .blog-empty h2 { color: var(--vb-deep); margin-bottom: 0.75rem; }
.blog-empty p { color: var(--text-muted); margin-bottom: 1.25rem; }

/* Artículo */
.breadcrumbs { font-size: 0.88rem; color: #C9D6E8; margin-bottom: 1.25rem; }
.breadcrumbs a { color: #C9D6E8; text-decoration: none; }
.breadcrumbs a:hover { color: #fff; text-decoration: underline; }
.post-hero h1 { font-size: clamp(1.9rem, 4.6vw, 2.9rem); line-height: 1.15; margin-bottom: 1rem; }
.post-lead { font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: #D7E2F1; line-height: 1.55; }
.post-hero .post-meta { display: block; margin-top: 1.25rem; color: #9FB3CF; font-size: 0.92rem; }
.post-cover { max-width: 1000px; margin: -1px auto 0; padding: 2rem 2rem 0; }
.post-cover img { width: 100%; height: auto; border-radius: 18px; display: block; box-shadow: 0 20px 45px rgba(11, 45, 91, 0.15); }

.post-layout {
    max-width: 1100px; margin: 0 auto; padding: 2.5rem 2rem 3rem;
    display: grid; grid-template-columns: 240px minmax(0, 720px); gap: 3rem; justify-content: center;
}
.post-layout:not(:has(.post-toc)) { grid-template-columns: minmax(0, 760px); }
.post-toc { position: sticky; top: calc(var(--header-h) + 1.5rem); align-self: start; font-size: 0.92rem; border-left: 3px solid var(--vb-turquoise); padding-left: 1rem; }
.post-toc strong { display: block; color: var(--vb-deep); margin-bottom: 0.6rem; font-family: var(--font-title); }
.post-toc ol { list-style: none; display: grid; gap: 0.5rem; }
.post-toc a { color: var(--text-muted); text-decoration: none; line-height: 1.4; }
.post-toc a:hover { color: var(--secondary); }

.post-body { font-size: 1.08rem; line-height: 1.8; color: #1d2f4a; }
.post-body > * + * { margin-top: 1.15rem; }
.post-body h2 { font-size: clamp(1.45rem, 3vw, 1.8rem); line-height: 1.25; color: var(--vb-deep); margin-top: 2.5rem; scroll-margin-top: calc(var(--header-h) + 1rem); }
.post-body h3 { font-size: 1.25rem; line-height: 1.3; color: var(--vb-deep); margin-top: 1.75rem; scroll-margin-top: calc(var(--header-h) + 1rem); }
.post-body a { color: var(--secondary); font-weight: 600; }
.post-body ul, .post-body ol { padding-left: 1.4rem; }
.post-body li + li { margin-top: 0.4rem; }
.post-body li::marker { color: #00A57C; font-weight: 700; }
.post-body blockquote { border-left: 4px solid var(--vb-turquoise); background: var(--light); padding: 1rem 1.25rem; border-radius: 0 12px 12px 0; color: var(--vb-deep); font-weight: 500; }
.post-body img { max-width: 100%; height: auto; border-radius: 14px; display: block; margin: 1.5rem auto; }
.post-body code { background: #eef2f8; padding: 0.1em 0.35em; border-radius: 5px; font-size: 0.92em; }
.post-body pre { background: #0B2D5B; color: #e6eefa; padding: 1rem 1.25rem; border-radius: 12px; overflow-x: auto; font-size: 0.92rem; line-height: 1.6; }
.post-body pre code { background: none; padding: 0; color: inherit; }
.post-body hr { border: 0; height: 1px; background: #DDE5EF; margin: 2rem 0; }
.post-table { overflow-x: auto; }
.post-body table { width: 100%; border-collapse: collapse; font-size: 0.97rem; }
.post-body th, .post-body td { border: 1px solid #DDE5EF; padding: 0.6rem 0.8rem; text-align: left; vertical-align: top; }
.post-body th { background: var(--light); color: var(--vb-deep); }

.post-cta {
    display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap;
    margin-top: 2.75rem !important; padding: 1.75rem 2rem; border-radius: 20px;
    background: var(--gradient); color: #fff; position: relative; overflow: hidden;
}
.post-cta h2 { color: #fff; font-size: 1.35rem; margin: 0 0 0.4rem; }
.post-cta p { color: #D7E2F1; margin: 0; font-size: 1rem; line-height: 1.55; }
.post-cta-actions { display: flex; flex-direction: column; gap: 0.6rem; align-items: center; }
.post-cta .cta-button { animation: none; padding: 0.85rem 1.6rem; font-size: 1rem; white-space: nowrap; }
.post-cta .post-cta-link { color: #fff; font-weight: 600; font-size: 0.95rem; }
.blog-wrap .post-cta { margin-top: 3rem; }
.post-share { font-size: 0.95rem; color: var(--text-muted); border-top: 1px solid #DDE5EF; padding-top: 1.25rem; margin-top: 2rem !important; }
.post-share a { font-weight: 700; }

.post-related { max-width: 1200px; margin: 0 auto; padding: 1rem 2rem 4rem; }
.post-related h2 { text-align: center; color: var(--vb-deep); font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: 2rem; }

@media (max-width: 1024px) {
    .post-layout { grid-template-columns: minmax(0, 760px); }
    .post-toc { position: static; background: var(--light); border-radius: 0 12px 12px 0; padding: 1rem 1.25rem; }
}
@media (max-width: 768px) {
    .blog-hero, .post-hero { padding: calc(var(--header-h) + 2rem) 1rem 2.5rem; }
    .blog-wrap { padding: 2rem 1rem 3rem; }
    .post-cover { padding: 1.25rem 1rem 0; }
    .post-layout { padding: 2rem 1rem 2.5rem; }
    .post-body { font-size: 1.03rem; }
    .post-cta { padding: 1.5rem; }
    .post-cta-actions { width: 100%; align-items: stretch; }
    .post-related { padding: 0.5rem 1rem 3rem; }
}

/* styles_index.css da estilos generales a <nav> (menú superior): aquí se anulan para la navegación del blog */
nav.breadcrumbs, nav.post-toc, nav.blog-cats, nav.blog-pages { padding: 0; max-width: none; position: static; }
nav.breadcrumbs, nav.post-toc { display: block; }
nav.blog-cats { display: flex; justify-content: center; margin: 0 auto 2.5rem; }
nav.blog-pages { display: flex; justify-content: center; margin: 2.5rem auto 0; }
@media (max-width: 1024px) { nav.post-toc { padding: 1rem 1.25rem; } }