/* ================================================================
   TECHAVEN — blog.css
   Blog listing page styles
   Deep black / electric blue — editorial cyber aesthetic
   ================================================================ */

/* ── Page hero ─────────────────────────────────────────────── */
.blog-hero {
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
    background: var(--ta-bg);
    border-bottom: 1px solid var(--ta-border);
}
.blog-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 65% at 70% 20%, rgba(10,132,255,0.09) 0%, transparent 65%),
        radial-gradient(ellipse 30% 40% at 5% 80%,  rgba(10,132,255,0.06) 0%, transparent 60%);
    pointer-events: none;
}
.blog-hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--ta-blue) 50%, transparent 100%);
}

.bl-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--ta-blue);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 1.2rem;
    opacity: 0;
    animation: blFadeUp 0.6s 0.1s ease forwards;
}
.bl-eyebrow::before {
    content: '';
    width: 28px; height: 1px;
    background: linear-gradient(to right, var(--ta-blue), rgba(10,132,255,0.2));
}

.bl-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: clamp(2.6rem, 6vw, 4.4rem);
    font-weight: 700;
    color: #fff;
    line-height: 1;
    letter-spacing: -0.01em;
    margin-bottom: 1rem;
    opacity: 0;
    animation: blFadeUp 0.6s 0.2s ease forwards;
}
.bl-title-accent {
    background: linear-gradient(135deg, var(--ta-blue) 0%, #5cc8ff 50%, var(--ta-blue) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: blGradShift 4s linear infinite;
}
@keyframes blGradShift { 0%{background-position:0% center} 100%{background-position:200% center} }

.bl-sub {
    color: var(--ta-muted);
    font-size: 1rem;
    max-width: 500px;
    line-height: 1.78;
    margin-bottom: 0;
    opacity: 0;
    animation: blFadeUp 0.6s 0.3s ease forwards;
}

/* ── Filter / category bar ───────────────────────────────────── */
.blog-filter-bar {
    background: #07070f;
    border-bottom: 1px solid var(--ta-border);
    position: sticky;
    top: 62px;
    z-index: 100;
    backdrop-filter: blur(12px);
}
.blog-filter-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0;
}
.blog-filter-tabs {
    display: flex;
    overflow-x: auto;
    scrollbar-width: none;
}
.blog-filter-tabs::-webkit-scrollbar { display: none; }

.bl-tab {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 1rem 1.1rem;
    font-family: 'Rajdhani', sans-serif;
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--ta-muted);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.22s, border-color 0.22s;
    white-space: nowrap;
}
.bl-tab:hover { color: #fff; }
.bl-tab.active { color: var(--ta-blue); border-bottom-color: var(--ta-blue); }

.bl-tab-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}
.bl-tab-count {
    background: var(--ta-blue-dim);
    color: var(--ta-blue);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    width: 17px; height: 17px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.bl-tab.active .bl-tab-count { background: var(--ta-blue); color: #fff; }

/* Search box in filter bar */
.blog-search {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.6rem 0;
}
.blog-search-input {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--ta-border);
    border-radius: 7px;
    padding: 0.45rem 0.85rem;
    color: #fff;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    outline: none;
    width: 200px;
    transition: border-color 0.22s, width 0.3s;
}
.blog-search-input::placeholder { color: var(--ta-muted); }
.blog-search-input:focus { border-color: rgba(10,132,255,0.45); width: 240px; }
@media(max-width: 576px) { .blog-search { display: none; } }

/* ── Featured post (large hero card) ─────────────────────────── */
.blog-featured {
    padding: 3.5rem 0 0;
    background: var(--ta-bg);
}

.blog-featured-card {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    border: 1px solid var(--ta-border);
    border-radius: 18px;
    overflow: hidden;
    background: var(--ta-bg-card);
    transition: border-color 0.28s, box-shadow 0.28s;
    text-decoration: none;
    opacity: 0;
    animation: blFadeUp 0.7s 0.2s ease forwards;
}
.blog-featured-card:hover {
    border-color: rgba(10,132,255,0.4);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(10,132,255,0.18);
}
@media(max-width: 768px) { .blog-featured-card { grid-template-columns: 1fr; } }

/* Featured card visual side */
.bfc-visual {
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.bfc-visual--cyber { background: radial-gradient(ellipse at 35% 55%, rgba(10,132,255,0.32), transparent 60%), linear-gradient(160deg,#060c18,#04060f); }
.bfc-visual--dev   { background: radial-gradient(ellipse at 35% 55%, rgba(48,209,88,0.26),  transparent 60%), linear-gradient(160deg,#060f08,#04060a); }
.bfc-visual--audit { background: radial-gradient(ellipse at 35% 55%, rgba(255,159,10,0.26), transparent 60%), linear-gradient(160deg,#110c04,#04060a); }

.bfc-bg-icon {
    font-size: 9rem;
    opacity: 0.08;
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
}
.blog-featured-card:hover .bfc-bg-icon { opacity: 0.14; transform: scale(1.05); }

.bfc-badge {
    position: absolute;
    top: 16px; left: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 4px 10px;
    border-radius: 5px;
}
.bfc-badge--cyber { background: rgba(10,132,255,0.2); color: var(--ta-cyber); border: 1px solid rgba(10,132,255,0.3); }
.bfc-badge--dev   { background: rgba(48,209,88,0.15);  color: var(--ta-dev);   border: 1px solid rgba(48,209,88,0.3); }
.bfc-badge--audit { background: rgba(255,159,10,0.15); color: var(--ta-audit); border: 1px solid rgba(255,159,10,0.3); }

.bfc-featured-label {
    position: absolute;
    top: 16px; right: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    padding: 3px 9px;
    border-radius: 4px;
    background: var(--ta-blue);
    color: #fff;
}

/* Featured card content side */
.bfc-content {
    padding: 2.25rem;
    display: flex;
    flex-direction: column;
}
.bfc-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 0.9rem;
    transition: color 0.22s;
}
.blog-featured-card:hover .bfc-title { color: var(--ta-blue-light); }
.bfc-excerpt {
    color: var(--ta-muted);
    font-size: 0.875rem;
    line-height: 1.72;
    margin-bottom: 1.5rem;
    flex: 1;
}
.bfc-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 1.5rem;
}
.bfc-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    color: var(--ta-muted);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--ta-border);
    border-radius: 4px;
    padding: 3px 8px;
}
.bfc-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 1.25rem;
    border-top: 1px solid var(--ta-border);
}
.bfc-avatar {
    width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
    background: var(--ta-blue-dim);
    border: 1px solid rgba(10,132,255,0.25);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--ta-blue);
}
.bfc-author { font-size: 0.78rem; color: var(--ta-text); font-weight: 500; }
.bfc-date   { font-family: 'JetBrains Mono', monospace; font-size: 0.64rem; color: var(--ta-muted); }
.bfc-read-time { margin-left: auto; font-family: 'JetBrains Mono', monospace; font-size: 0.64rem; color: var(--ta-muted); }
.bfc-read-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ta-blue);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 1.25rem;
    transition: gap 0.2s, color 0.2s;
    text-decoration: none;
}
.bfc-read-link:hover { color: var(--ta-blue-light); gap: 10px; }

/* ── Blog grid ─────────────────────────────────────────────── */
.blog-grid-section {
    padding: 3.5rem 0 5rem;
    background: var(--ta-bg);
}

/* Grid post card */
.bl-post-card {
    background: var(--ta-bg-card);
    border: 1px solid var(--ta-border);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: border-color 0.26s, transform 0.26s, box-shadow 0.26s;
    opacity: 0;
    transform: translateY(22px);
}
.bl-post-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.26s, box-shadow 0.26s;
}
.bl-post-card:hover {
    border-color: rgba(10,132,255,0.35);
    transform: translateY(-5px);
    box-shadow: 0 14px 40px rgba(0,0,0,0.45), 0 0 0 1px rgba(10,132,255,0.12);
}
/* Category-coloured hover border */
.bl-post-card[data-cat="cyber"]:hover  { border-color: rgba(10,132,255,0.4); }
.bl-post-card[data-cat="dev"]:hover    { border-color: rgba(48,209,88,0.35); }
.bl-post-card[data-cat="audit"]:hover  { border-color: rgba(255,159,10,0.35); }

/* Card image strip */
.bl-post-img {
    height: 140px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-image {
    height: 200px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.featured-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255,159,10,0.9);
    color: #fff;
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 0.65rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.bl-post-img--cyber { background: radial-gradient(ellipse at 40% 60%, rgba(10,132,255,0.26), transparent 65%), linear-gradient(160deg,#060c18,#04060f); }
.bl-post-img--dev   { background: radial-gradient(ellipse at 40% 60%, rgba(48,209,88,0.20),  transparent 65%), linear-gradient(160deg,#060f08,#04060a); }
.bl-post-img--audit { background: radial-gradient(ellipse at 40% 60%, rgba(255,159,10,0.20), transparent 65%), linear-gradient(160deg,#110c04,#04060a); }

.bl-post-img-icon { font-size: 4rem; opacity: 0.09; transition: opacity 0.3s, transform 0.3s; pointer-events: none; }
.bl-post-card:hover .bl-post-img-icon { opacity: 0.16; transform: scale(1.05); }

.bl-post-cat {
    position: absolute;
    top: 10px; 
    left: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 3px 8px;
    border-radius: 4px;
}
.bl-post-cat--cyber { background: rgba(10,132,255,0.18); color: var(--ta-cyber); border: 1px solid rgba(10,132,255,0.28); }
.bl-post-cat--dev   { background: rgba(48,209,88,0.14);  color: var(--ta-dev);   border: 1px solid rgba(48,209,88,0.28); }
.bl-post-cat--audit { background: rgba(255,159,10,0.14); color: var(--ta-audit); border: 1px solid rgba(255,159,10,0.28); }

.bl-post-read-time {
    position: absolute;
    bottom: 10px; right: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    color: rgba(255,255,255,0.4);
    background: rgba(0,0,0,0.4);
    border-radius: 20px;
    padding: 2px 8px;
    backdrop-filter: blur(6px);
}

.bl-post-body { padding: 1.1rem; flex: 1; display: flex; flex-direction: column; }
.bl-post-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
    line-height: 1.25;
    text-decoration: none;
    display: block;
    transition: color 0.22s;
}
.bl-post-card:hover .bl-post-title { color: var(--ta-blue-light); }
.bl-post-excerpt { color: var(--ta-muted); font-size: 0.79rem; line-height: 1.65; margin-bottom: 0.9rem; flex: 1; }
.bl-post-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-top: 0.85rem;
    border-top: 1px solid var(--ta-border);
    margin-top: auto;
}
.bl-post-avatar {
    width: 24px; height: 24px; flex-shrink: 0;
    border-radius: 50%;
    background: var(--ta-blue-dim);
    border: 1px solid rgba(10,132,255,0.22);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--ta-blue);
}
.bl-post-author { font-size: 0.72rem; color: var(--ta-text); }
.bl-post-date   { font-family: 'JetBrains Mono', monospace; font-size: 0.62rem; color: var(--ta-muted); margin-left: auto; }

/* hidden state for filter */
.bl-post-card.filtered-out { display: none; }

/* ── Pagination ──────────────────────────────────────────────── */
.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 3.5rem;
}
.bl-page-btn {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    background: var(--ta-bg-card);
    border: 1px solid var(--ta-border);
    border-radius: 8px;
    font-family: 'Rajdhani', sans-serif;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--ta-muted);
    cursor: pointer;
    transition: all 0.22s;
    text-decoration: none;
}
.bl-page-btn:hover { border-color: rgba(10,132,255,0.35); color: #fff; background: var(--ta-blue-dim); }
.bl-page-btn.active { background: var(--ta-blue); border-color: var(--ta-blue); color: #fff; box-shadow: 0 0 16px var(--ta-blue-glow); }
.bl-page-btn--wide { width: auto; padding: 0 12px; }

/* ── Sidebar newsletter ──────────────────────────────────────── */
.blog-sidebar-subscribe {
    background: var(--ta-bg-card);
    border: 1px solid rgba(10,132,255,0.2);
    border-radius: 14px;
    padding: 1.5rem;
    position: sticky;
    top: 100px;
}
.bss-title { font-family: 'Rajdhani', sans-serif; font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 0.4rem; }
.bss-sub { color: var(--ta-muted); font-size: 0.8rem; line-height: 1.65; margin-bottom: 1rem; }
.bss-input {
    width: 100%;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--ta-border);
    border-radius: 8px;
    padding: 0.6rem 0.9rem;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 0.83rem;
    outline: none;
    margin-bottom: 8px;
    transition: border-color 0.22s;
}
.bss-input::placeholder { color: var(--ta-muted); }
.bss-input:focus { border-color: rgba(10,132,255,0.45); }
.bss-privacy { font-size: 0.7rem; color: var(--ta-muted); margin-top: 8px; }

/* Sidebar recent posts */
.blog-sidebar-recent { margin-top: 1.5rem; }
.bsr-title { font-family: 'Rajdhani', sans-serif; font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ta-muted); margin-bottom: 1rem; }
.bsr-item {
    display: flex;
    gap: 10px;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--ta-border);
    text-decoration: none;
    transition: background 0.2s;
}
.bsr-item:last-child { border-bottom: none; }
.bsr-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; margin-top: 5px; }
.bsr-text {}
.bsr-post-title { font-size: 0.81rem; color: var(--ta-text); line-height: 1.4; margin-bottom: 3px; transition: color 0.2s; }
.bsr-item:hover .bsr-post-title { color: var(--ta-blue-light); }
.bsr-post-date { font-family: 'JetBrains Mono', monospace; font-size: 0.62rem; color: var(--ta-muted); }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes blFadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}