/* === VCF Blogger — Dark Two-Column Theme === */

:root {
    --bg-primary: #0f0f0f;
    --bg-card: #1a1a2e;
    --bg-surface: #16162a;
    --bg-nav: #12121f;
    --text-primary: #e4e4e7;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent: #818cf8;
    --accent-hover: #a5b4fc;
    --border: #2d2d44;
    --card-shadow: rgba(0, 0, 0, .4);
}

*, *::before, *::after { box-sizing: border-box; }

body {
    background: var(--bg-primary);
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    margin: 0;
}

a { color: var(--accent); transition: color .2s; }
a:hover { color: var(--accent-hover); }

/* Site header */
.site-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
}
.site-header h1 a,
.site-header .display-5 { color: #fff !important; }
.site-header p { color: var(--text-secondary) !important; }

/* Nav */
.navbar {
    background: var(--bg-nav) !important;
    border-bottom: 1px solid var(--border) !important;
}
.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: .9rem;
    letter-spacing: .02em;
    padding: .6rem 1rem !important;
    border-radius: 6px;
    transition: color .2s, background .2s;
}
.nav-link:hover {
    color: #fff !important;
    background: rgba(129, 140, 248, .1);
}
.nav-link.active {
    color: #fff !important;
    background: var(--accent) !important;
}

/* Post grid — 2 columns */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* Post cards */
.post-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    display: flex;
    flex-direction: column;
}
.post-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px var(--card-shadow);
    border-color: var(--accent);
}
.post-card .card-img-top {
    height: 220px;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
}
.post-card .card-body {
    background: var(--bg-card);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.post-card .card-title {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.4;
}
.post-card .card-title a {
    color: var(--text-primary) !important;
    text-decoration: none;
}
.post-card .card-title a:hover {
    color: var(--accent) !important;
}
.post-card .card-text {
    color: var(--text-secondary) !important;
    font-size: .92rem;
    line-height: 1.6;
}
.post-card .text-muted,
.text-muted {
    color: var(--text-muted) !important;
}

/* Badges */
.badge.rounded-pill {
    font-weight: 600;
    font-size: .75rem;
    letter-spacing: .03em;
}

/* Read more link */
.read-more {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    font-size: .9rem;
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    transition: color .2s, gap .2s;
}
.read-more:hover {
    color: var(--accent-hover);
    gap: .5rem;
}

/* Single article */
.hero-img {
    height: 400px;
    object-fit: cover;
    border-radius: 14px;
}
.article-content p {
    color: var(--text-secondary);
    margin-bottom: 1.3rem;
    font-size: 1.05rem;
    line-height: 1.85;
}
.article-content p strong {
    color: var(--text-primary);
}

/* Buttons */
.btn-outline-primary {
    color: var(--accent);
    border-color: var(--accent);
}
.btn-outline-primary:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

/* Footer */
footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border) !important;
}
footer p {
    color: var(--text-muted) !important;
}

/* 404 */
.display-1 { color: var(--accent) !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Responsive */
@media (max-width: 768px) {
    .posts-grid {
        grid-template-columns: 1fr;
    }
    .post-card .card-img-top {
        height: 180px;
    }
    .hero-img {
        height: 220px;
    }
}
@media (min-width: 769px) and (max-width: 992px) {
    .post-card .card-img-top {
        height: 190px;
    }
}