/* ============================================================
   BLOG INDEX — Listado de artículos del blog
   ============================================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* ── Header ──────────────────────────────────────────────── */
header {
    text-align: center;
    padding: 4rem 0 2rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin: 0 0 0.75rem;
}

.post-count {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0;
}

/* ── Filter bar ─────────────────────────────────────────── */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    border-bottom: 1px solid var(--card-border);
    margin: 2rem 0 0;
}

.filter-btn {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.65rem 1.1rem;
    margin-bottom: -1px;
    transition: color 0.2s, border-color 0.2s;
}

.filter-btn:hover {
    color: var(--text-main);
}

.filter-btn.active {
    color: var(--text-main);
    border-bottom-color: var(--accent);
    font-weight: 700;
}

/* ── Grid ───────────────────────────────────────────────── */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 3rem;
}

@media (max-width: 960px) {
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .blog-grid { grid-template-columns: 1fr; }
}

/* ── Post card ──────────────────────────────────────────── */
.post-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.post-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    background-color: var(--input-bg);
    flex-shrink: 0;
}

.post-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.post-date {
    font-size: 0.72rem;
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.07em;
}

.post-category-badge {
    font-size: 0.63rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    padding: 0.1rem 0.45rem;
}

.post-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.65rem;
    line-height: 1.35;
    color: var(--text-main);
}

.post-summary {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.55;
    flex-grow: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
}

.read-more {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    transition: gap 0.2s;
}

.post-card:hover .read-more { letter-spacing: 0.03em; }

/* ── Empty state ─────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 5rem 0;
    color: var(--text-muted);
    grid-column: 1 / -1;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.empty-state p { margin: 0 0 0.4rem; font-size: 1rem; }

.empty-sub {
    font-size: 0.85rem !important;
    color: var(--text-muted) !important;
    opacity: 0.7;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
    h1 { font-size: 2.4rem; }
    header { padding: 2.5rem 0 1.5rem; }
}

/* ============================================================
   HERO — Post fijado destacado
   ============================================================ */

.hero-post {
    display: grid;
    grid-template-columns: 3fr 2fr;
    min-height: 400px;
    border-radius: 1.2rem;
    overflow: hidden;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
    text-decoration: none;
    color: inherit;
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    transition: box-shadow 0.3s, border-color 0.3s;
    position: relative;
}

.hero-post:hover {
    border-color: var(--accent);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.hero-image {
    background-size: cover;
    background-position: center;
    background-color: var(--input-bg);
    min-height: 400px;
    position: relative;
}

.hero-content {
    padding: 2.5rem 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.8rem;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.hero-pin-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--accent);
    opacity: 0.75;
}

.hero-title {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-main);
    margin: 0;
}

.hero-summary {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}

.hero-read-more {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.hero-post:hover .hero-read-more { letter-spacing: 0.04em; }

@media (max-width: 768px) {
    .hero-post {
        grid-template-columns: 1fr;
    }
    .hero-image {
        min-height: 220px;
    }
    .hero-content {
        padding: 1.5rem;
    }
    .hero-title {
        font-size: 1.35rem;
    }
}