/* ============================================
   BLOG LISTADO — usa las variables de :root
   definidas en styles.css (--blue, --ink, --radius, etc.)
   Cárgalo DESPUÉS de styles.css
   ============================================ */

.blog-header {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #17385f 0%, #285f98 55%, #4273c2 100%);
    color: #fff;
    padding: 72px 0 64px;
    text-align: center;
}

.blog-header:before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 50%;
    right: -140px;
    top: -160px;
}

.blog-header .eyebrow {
    justify-content: center;
}

.blog-header h1 {
    margin-bottom: 14px;
}

.blog-header p {
    color: rgba(255, 255, 255, .85);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* ---------- Grid ---------- */
.blog-listado {
    padding: 56px 0 90px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
}

/* ---------- Card ---------- */
.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.blog-card:hover,
.blog-card:focus-within {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: #cfe0f2;
}

.blog-card-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    /* ~40% de la proporción visual del recuadro */
    overflow: hidden;
    background: var(--surface-2);
}

.blog-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .5s ease;
}

.blog-card:hover .blog-card-media img,
.blog-card:focus-within .blog-card-media img {
    transform: scale(1.07);
}

.blog-card-media:after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(23, 56, 95, 0) 60%, rgba(23, 56, 95, .28) 100%);
    opacity: 0;
    transition: opacity .28s ease;
}

.blog-card:hover .blog-card-media:after,
.blog-card:focus-within .blog-card-media:after {
    opacity: 1;
}

.blog-card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(255, 255, 255, .92);
    color: var(--blue-dark);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 999px;
}

.blog-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 22px 24px 24px;
    gap: 8px;
}

.blog-card-meta {
    font-size: .78rem;
    color: var(--muted);
    font-weight: 600;
}

.blog-card-body h3 {
    margin: 0;
    font-size: 1.18rem;
    line-height: 1.32;
    color: var(--ink);
}

.blog-card-body h3 a {
    text-decoration: none;
    color: inherit;
}

.blog-card-body p {
    margin: 0;
    color: var(--muted);
    font-size: .92rem;
    line-height: 1.6;
    flex: 1;
}

.blog-card-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 16px;
}

.blog-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--blue);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: .85rem;
    padding: 10px 18px;
    border-radius: 999px;
    transition: background .2s ease, transform .2s ease;
}

.blog-card-cta svg {
    width: 14px;
    height: 14px;
    transition: transform .2s ease;
}

.blog-card-cta:hover,
.blog-card-cta:focus-visible {
    background: var(--blue-dark);
}

.blog-card-cta:hover svg,
.blog-card-cta:focus-visible svg {
    transform: translateX(3px);
}

.blog-card-cta:focus-visible {
    outline: 3px solid #9ed0ff;
    outline-offset: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 780px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .blog-header {
        padding: 52px 0 44px;
    }
}

@media (max-width: 700px) {
    .blog-listado {
        padding: 40px 0 60px;
    }
}