/* ============================================
   BLOG STYLES — Xpert-iA
   ============================================ */

.blog-header {
    padding: 56px 0 8px;
    background: linear-gradient(135deg, #13132B 0%, #1A1A3D 100%);
    text-align: center;
}

.blog-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    margin: 4px 0;
    line-height: 1.2;
}

.blog-header-sub {
    font-size: 1.1rem;
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Blog listing grid */
.blog-listing {
    padding: 30px 0;
    background: var(--dark-900);
    min-height: 50vh;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

.blog-card {
    display: block;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: 16px;
    padding: 32px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--violet), var(--cyan, #00d4ff));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.blog-card:hover {
    border-color: var(--violet);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(124, 92, 252, 0.15);
}

.blog-card:hover::before {
    opacity: 1;
}

.blog-card-tag {
    font-size: 0.8rem;
    color: var(--violet-light, #9B82FD);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.blog-card h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.35;
}

.blog-card p {
    font-size: 0.95rem;
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-card-meta {
    display: flex;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* Blog CTA (newsletter) */
.blog-cta {
    padding: 60px 0;
    background: var(--dark-800);
}

.blog-cta-box {
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
    padding: 48px;
    background: linear-gradient(135deg, var(--dark-700) 0%, var(--dark-900) 100%);
    border: 1px solid var(--dark-600);
    border-radius: 20px;
}

.blog-cta-box h2 {
    font-size: 1.6rem;
    color: var(--white);
    margin-bottom: 12px;
}

.blog-cta-box > p {
    color: var(--gray-400);
    margin-bottom: 24px;
    line-height: 1.6;
}

.blog-cta-form {
    display: flex;
    gap: 10px;
    max-width: 440px;
    margin: 0 auto 12px;
}

.blog-cta-form input[type="email"] {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--dark-600);
    border-radius: 10px;
    background: var(--dark-800);
    color: var(--white);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.blog-cta-form input[type="email"]:focus {
    border-color: var(--violet);
}

.blog-cta-form button {
    white-space: nowrap;
}

.blog-cta-note {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 8px;
}

/* Blog footer */
.blog-footer {
    padding: 40px 0;
    background: var(--black);
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray-500);
}

.blog-footer a {
    color: var(--violet-light, #9B82FD);
    text-decoration: none;
}

/* Blog article page */
.blog-article {
    padding: 76px 0 30px;
    background: var(--dark-900);
}

.blog-article-content {
    max-width: 740px;
    margin: 0 auto;
    color: var(--gray-300);
    font-size: 1.05rem;
    line-height: 1.75;
}

.blog-article-content h1 {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.2;
}

.blog-article-meta {
    display: flex;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--dark-600);
}

.blog-article-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin: 40px 0 16px;
}

.blog-article-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--violet-light, #9B82FD);
    margin: 32px 0 12px;
}

.blog-article-content p {
    margin-bottom: 18px;
}

.blog-article-content ul, .blog-article-content ol {
    margin: 16px 0 24px 24px;
}

.blog-article-content li {
    margin-bottom: 8px;
}

.blog-article-content strong {
    color: var(--white);
}

.blog-article-content blockquote {
    border-left: 4px solid var(--violet);
    padding: 16px 24px;
    margin: 24px 0;
    background: var(--dark-800);
    border-radius: 0 12px 12px 0;
    font-style: italic;
    color: var(--gray-300);
}

.blog-article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.9rem;
}

.blog-article-content th {
    background: var(--dark-700);
    color: var(--white);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
}

.blog-article-content td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--dark-600);
}

.blog-article-content tr:nth-child(even) {
    background: var(--dark-800);
}

.blog-article-cta {
    max-width: 740px;
    margin: 40px auto 0;
    padding: 32px;
    background: linear-gradient(135deg, var(--dark-700), var(--dark-800));
    border: 1px solid var(--violet);
    border-radius: 16px;
    text-align: center;
}

.blog-article-cta h3 {
    color: var(--white) !important;
    font-size: 1.3rem;
    margin-bottom: 12px !important;
    margin-top: 0 !important;
}

.blog-article-cta p {
    color: var(--gray-400);
    margin-bottom: 20px;
}

.blog-back {
    max-width: 740px;
    margin: 30px auto;
}

.blog-back a {
    color: var(--violet-light, #9B82FD);
    text-decoration: none;
    font-size: 0.9rem;
}

.blog-back a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .blog-header h1 { font-size: 2rem; }
    .blog-grid { grid-template-columns: 1fr; }
    .blog-card { padding: 24px; }
    .blog-cta-form { flex-direction: column; }
    .blog-article-content h1 { font-size: 1.8rem; }
    .blog-article-content { padding: 0 16px; }
}

/* Blog card visuals */
.blog-card-visual {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px 12px 0 0;
    overflow: hidden;
    margin-bottom: 16px;
    position: relative;
}
.blog-card-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease, filter 0.4s ease;
    filter: brightness(0.85);
}
.blog-card:hover .blog-card-visual img {
    transform: scale(1.05);
    filter: brightness(1);
}