/* === Page Hero === */
.page-hero {
    background: linear-gradient(135deg, #0f0e24 0%, #1b1650 40%, #0e2448 75%, #0c1a30 100%);
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background:
        radial-gradient(ellipse at 28% 48%, rgba(167, 139, 250, 0.26) 0%, transparent 52%),
        radial-gradient(ellipse at 72% 22%, rgba(96, 165, 250, 0.2) 0%, transparent 48%),
        radial-gradient(ellipse at 50% 85%, rgba(99, 102, 241, 0.12) 0%, transparent 42%);
}
.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 140px;
    background: linear-gradient(to bottom, transparent 0%, rgba(12, 18, 32, 0.5) 100%);
    z-index: 0;
    pointer-events: none;
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1 {
    color: #ffffff;
    font-size: 3.8rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 20px;
    line-height: 1.1;
}
.page-hero p {
    color: rgba(255,255,255,0.72);
    font-size: 1.2rem;
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.7;
}

/* === Blog Section === */
.blog-section { padding: 80px 0 140px; background: var(--color-bg-light); }

/* === Filter Tabs === */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 56px;
    flex-wrap: wrap;
    gap: 20px;
}
.filter-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.filter-tab {
    padding: 8px 20px;
    border-radius: 50px;
    border: 1.5px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-grey-dark);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.filter-tab:hover {
    border-color: var(--color-brand);
    color: var(--color-brand);
}
.filter-tab.active {
    background: linear-gradient(135deg, var(--color-brand-dark) 0%, var(--color-brand) 100%);
    color: var(--color-white);
    border-color: var(--color-brand);
}
.article-count {
    font-size: 0.9rem;
    color: var(--color-grey-light);
    font-family: var(--font-en);
    font-weight: 500;
}

/* === Featured Article === */
.featured-article {
    position: relative;
    background: linear-gradient(135deg, #0f0e24 0%, #1b1650 60%, #0e2448 100%);
    border-radius: 28px;
    overflow: hidden;
    margin-bottom: 48px;
    display: grid;
    grid-template-columns: 1fr 420px;
    min-height: 400px;
    transition: var(--transition);
    border: 1.5px solid rgba(255,255,255,0.04);
}
.featured-stretched-link {
    position: absolute;
    inset: 0;
    z-index: 2;
    border-radius: 28px;
}
.featured-stretched-link:focus-visible {
    outline: 2px solid rgba(167, 139, 250, 0.9);
    outline-offset: 3px;
}
.featured-article:hover {
    transform: translateY(-4px);
    box-shadow: 0 40px 80px -20px rgba(0,0,0,0.3);
}
.featured-content {
    padding: 56px 60px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.featured-tags { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.tag {
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.tag-featured { background: rgba(99, 102, 241, 0.2); color: #a5b4fc; border: 1px solid rgba(99,102,241,0.3); }
.tag-tutorial { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; border: 1px solid rgba(16,185,129,0.25); }
.tag-update { background: rgba(245, 158, 11, 0.15); color: #fcd34d; border: 1px solid rgba(245,158,11,0.25); }
.tag-guide { background: rgba(59, 130, 246, 0.15); color: #93c5fd; border: 1px solid rgba(59,130,246,0.25); }
.tag-tips { background: rgba(236, 72, 153, 0.15); color: #f9a8d4; border: 1px solid rgba(236,72,153,0.25); }
.tag-compare { background: rgba(168, 85, 247, 0.15); color: #d8b4fe; border: 1px solid rgba(168,85,247,0.25); }

.featured-content h2 {
    color: var(--color-white);
    font-size: 2rem;
    letter-spacing: -0.03em;
    line-height: 1.25;
    margin-bottom: 20px;
}
.featured-content p {
    color: rgba(255,255,255,0.55);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 36px;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.35);
}
.article-meta i { margin-right: 5px; }
.read-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50px;
    color: var(--color-white);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}
.featured-article:hover .read-more {
    background: var(--color-white);
    color: var(--color-black);
    transform: translateX(4px);
}
.featured-image {
    background: url('../images/blog-hero-bg.jpg') center/cover;
    position: relative;
}
.featured-image::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, #0f0e24 0%, transparent 30%);
}

/* === Articles Grid === */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 48px;
}
.article-card {
    position: relative;
    background: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: 24px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.article-card-stretched-link {
    position: absolute;
    inset: 0;
    z-index: 2;
    border-radius: 24px;
}
.article-card-stretched-link:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 3px;
}
.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
    border-color: rgba(0,0,0,0.1);
}
.article-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--color-bg-light);
}
.article-card-img-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #0f0e24 0%, #1b1650 60%, #0e2448 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: rgba(167, 139, 250, 0.35);
    position: relative;
    overflow: hidden;
}
.article-card-img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(167, 139, 250, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 30%, rgba(96, 165, 250, 0.1) 0%, transparent 55%);
}
.article-card-body {
    padding: 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.card-tags { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }

/* Dark tags for light card backgrounds */
.tag-dark-tutorial { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; font-size: 0.73rem; font-weight: 600; padding: 3px 12px; border-radius: 20px; letter-spacing: 0.3px; }
.tag-dark-update { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; font-size: 0.73rem; font-weight: 600; padding: 3px 12px; border-radius: 20px; letter-spacing: 0.3px; }
.tag-dark-guide { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; font-size: 0.73rem; font-weight: 600; padding: 3px 12px; border-radius: 20px; letter-spacing: 0.3px; }
.tag-dark-tips { background: #fce7f3; color: #9d174d; border: 1px solid #fbcfe8; font-size: 0.73rem; font-weight: 600; padding: 3px 12px; border-radius: 20px; letter-spacing: 0.3px; }
.tag-dark-compare { background: #ede9fe; color: #5b21b6; border: 1px solid #ddd6fe; font-size: 0.73rem; font-weight: 600; padding: 3px 12px; border-radius: 20px; letter-spacing: 0.3px; }
.tag-dark-security { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; font-size: 0.73rem; font-weight: 600; padding: 3px 12px; border-radius: 20px; letter-spacing: 0.3px; }

.article-card-body h3 {
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    line-height: 1.4;
    flex: 1;
    color: var(--color-black);
    transition: var(--transition);
}
.article-card:hover .article-card-body h3 { color: var(--color-brand); }
.article-card-body p {
    font-size: 0.9rem;
    color: var(--color-grey-dark);
    line-height: 1.6;
    margin-bottom: 24px;
}
.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}
.card-meta {
    font-size: 0.82rem;
    color: var(--color-grey-light);
}
.card-meta i { margin-right: 5px; }
.card-read-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-brand);
    transition: var(--transition);
}
.article-card:hover .card-read-link { gap: 10px; }

/* === Newsletter / CTA === */
.blog-cta {
    background: linear-gradient(135deg, #0f0e24 0%, #1b1650 60%, #0e2448 100%);
    border-radius: 28px;
    padding: 60px;
    text-align: center;
    margin-top: 20px;
}
.blog-cta h2 {
    color: var(--color-white);
    font-size: 2.2rem;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}
.blog-cta p {
    color: rgba(255,255,255,0.5);
    font-size: 1.05rem;
    margin-bottom: 36px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-cta-white {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: var(--color-white);
    color: var(--color-black);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}
.btn-cta-white:hover {
    background: rgba(255,255,255,0.9);
    transform: translateY(-2px);
    color: var(--color-black);
}
.btn-cta-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    color: rgba(255,255,255,0.7);
    border: 1.5px solid rgba(255,255,255,0.15);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}
.btn-cta-outline:hover {
    border-color: rgba(255,255,255,0.5);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .featured-article { grid-template-columns: 1fr; min-height: auto; }
    .featured-image { height: 260px; }
    .featured-image::before { background: linear-gradient(to bottom, transparent 50%, #0f0e24 100%); }
}
@media (max-width: 768px) {
    .page-hero h1 { font-size: 2.2rem; }
    .page-hero { padding: 140px 0 80px; }
    .articles-grid { grid-template-columns: 1fr; }
    .featured-content { padding: 36px 28px; }
    .featured-content h2 { font-size: 1.6rem; }
    .filter-bar { flex-direction: column; align-items: flex-start; }
    .blog-cta { padding: 40px 28px; }
    .blog-cta h2 { font-size: 1.7rem; }
}