/* ============================================
   BLOG — Blog Page Styles
   ============================================ */

/* Blog Hero */
.blog-hero {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, var(--night) 0%, var(--night-soft) 50%, var(--charcoal) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 50%, rgba(212, 168, 83, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.blog-hero .section-tag {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 1.1rem;
    color: var(--gold);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.blog-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.2rem);
    color: var(--cream);
    line-height: 1.3;
    margin-bottom: 20px;
    font-weight: 700;
}

.blog-hero-title em {
    font-style: italic;
    color: var(--gold);
}

.blog-hero-desc {
    font-family: var(--font-body);
    font-size: 1.1rem;
    color: var(--smoke);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Blog Section */
.blog-section {
    padding: 80px 0 100px;
    background: var(--cream);
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

/* Blog Card */
.blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-medium);
}

/* Featured Card — Full Width */
.blog-card.blog-featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.blog-card.blog-featured .blog-card-img {
    min-height: 400px;
}

/* Card Image */
.blog-card-img {
    position: relative;
    overflow: hidden;
    min-height: 240px;
}

.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

.blog-card:hover .blog-card-img img {
    transform: scale(1.06);
}

.blog-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: linear-gradient(135deg, var(--gold), var(--gold-dark));
    color: var(--night);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: var(--font-body);
}

/* Card Content */
.blog-card-content {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card.blog-featured .blog-card-content {
    padding: 36px;
    justify-content: center;
}

/* Meta (date + category) */
.blog-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.82rem;
    font-family: var(--font-body);
    color: var(--smoke);
}

.blog-meta time {
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-meta time::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238B7D6B' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='18' rx='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") no-repeat center / contain;
}

.blog-category {
    background: var(--linen);
    color: var(--wood);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.78rem;
}

/* Card Title */
.blog-card-content h2 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    line-height: 1.4;
    margin-bottom: 12px;
    color: var(--night);
}

.blog-card.blog-featured .blog-card-content h2 {
    font-size: 1.6rem;
}

.blog-card-content h2 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s var(--ease);
}

.blog-card-content h2 a:hover {
    color: var(--gold-dark);
}

/* Card Excerpt */
.blog-card-content > p {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--charcoal);
    margin-bottom: 16px;
    flex: 1;
}

/* Full Content (hidden by default) */
.blog-full-content {
    display: none;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    margin-top: 8px;
}

.blog-card.expanded .blog-full-content {
    display: block;
    animation: blogFadeIn 0.4s var(--ease);
}

@keyframes blogFadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.blog-full-content h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--night);
    margin: 20px 0 10px;
}

.blog-full-content h3:first-child {
    margin-top: 8px;
}

.blog-full-content p {
    font-family: var(--font-body);
    font-size: 0.92rem;
    line-height: 1.75;
    color: var(--charcoal);
    margin-bottom: 10px;
}

.blog-full-content a {
    color: var(--gold-dark);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.3s;
}

.blog-full-content a:hover {
    color: var(--sunset);
}

/* Read More Button */
.blog-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gold-dark);
    text-decoration: none;
    padding: 8px 0;
    transition: color 0.3s, gap 0.3s;
    cursor: pointer;
    margin-top: auto;
}

.blog-read-more:hover {
    color: var(--sunset);
    gap: 10px;
}

.blog-card.expanded .blog-read-more::after {
    content: ' ← Thu gọn';
}

.blog-card.expanded .blog-read-more {
    font-size: 0;
}

.blog-card.expanded .blog-read-more::after {
    font-size: 0.88rem;
}

/* Blog CTA */
.blog-cta {
    text-align: center;
    padding: 60px 40px;
    background: linear-gradient(135deg, var(--night), var(--night-soft));
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.blog-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(212, 168, 83, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.blog-cta h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--cream);
    margin-bottom: 12px;
    position: relative;
}

.blog-cta p {
    font-family: var(--font-body);
    font-size: 1.05rem;
    color: var(--smoke);
    margin-bottom: 28px;
    position: relative;
}

.blog-cta .btn-golden {
    position: relative;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .blog-card.blog-featured {
        grid-template-columns: 1fr;
    }

    .blog-card.blog-featured .blog-card-img {
        min-height: 280px;
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 130px 0 60px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .blog-card-content {
        padding: 22px;
    }

    .blog-card-content h2 {
        font-size: 1.2rem;
    }

    .blog-card.blog-featured .blog-card-content h2 {
        font-size: 1.3rem;
    }

    .blog-card-img {
        min-height: 200px;
    }

    .blog-cta {
        padding: 40px 24px;
    }

    .blog-cta h3 {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: 120px 0 50px;
    }

    .blog-hero-title {
        font-size: 1.6rem;
    }

    .blog-hero-desc {
        font-size: 0.95rem;
    }

    .blog-card-content {
        padding: 18px;
    }

    .blog-card-content h2 {
        font-size: 1.1rem;
    }

    .blog-cta h3 {
        font-size: 1.25rem;
    }
}