/* ===== Blog Hero ===== */
.blog-hero {
    padding-top: calc(72px + var(--space-20));
    padding-bottom: var(--space-12);
    background: linear-gradient(135deg, #F0FDF4 0%, #FFFFFF 50%, #F0FDF4 100%);
    text-align: center;
    position: relative;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -15%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.07) 0%, transparent 70%);
    pointer-events: none;
}

.blog-hero-content {
    position: relative;
    z-index: 1;
    margin-bottom: var(--space-10);
}

.blog-hero .section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    margin-bottom: var(--space-4);
}

.blog-hero h1 {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    letter-spacing: -0.03em;
}

.blog-hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-hero p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto;
}

/* ===== Category Filters ===== */
.blog-filters {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.blog-filter {
    padding: var(--space-2) var(--space-5);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.blog-filter:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-50);
}

.blog-filter.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* ===== Featured Post ===== */
.blog-featured-section {
    padding-top: var(--space-8);
    padding-bottom: var(--space-16);
}

.blog-featured {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0;
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.blog-featured:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-200);
    transform: translateY(-2px);
}

.blog-featured-image {
    position: relative;
    min-height: 320px;
    background: linear-gradient(135deg, #F0FDF4, #DCFCE7);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.blog-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-featured-img-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    backdrop-filter: blur(10px);
}

.blog-featured-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.blog-featured-content {
    padding: var(--space-10) var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-featured-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.blog-featured-content p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-6);
}

/* Featured footer: read time left, read more button right */
.blog-featured-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-gray-100);
    margin-top: var(--space-2);
}
.blog-featured-footer .blog-read-time {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ===== Blog Meta ===== */
.blog-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.blog-tag {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.blog-tag-tutorial {
    background: #DBEAFE;
    color: #2563EB;
}

.blog-tag-guide {
    background: #FCE7F3;
    color: #DB2777;
}

.blog-tag-changelog {
    background: #FEF3C7;
    color: #D97706;
}

.blog-tag-news {
    background: #DCFCE7;
    color: #16A34A;
}

.blog-date,
.blog-read-time {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.blog-read-time::before {
    content: '·';
    margin-right: var(--space-3);
}

/* ===== Author ===== */
.blog-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.blog-author-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-primary-100);
    color: var(--color-primary-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
}

.blog-author-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.blog-author-role {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* ===== Blog Grid ===== */
.blog-grid-section {
    padding-top: 0;
    padding-bottom: var(--space-20);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

/* ===== Blog Card ===== */
.blog-card {
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    background: var(--color-white);
    overflow: hidden;
    transition: all var(--transition-base);
}

.blog-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gray-300);
    transform: translateY(-4px);
}

.blog-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.blog-card-image {
    height: 200px;
    overflow: hidden;
    position: relative;
    background: var(--color-gray-100);
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-card-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-content {
    padding: var(--space-6);
}

.blog-card-content .blog-meta {
    margin-bottom: var(--space-3);
}

.blog-card-content h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-5);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-gray-100);
}

.blog-author-small {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.blog-author-avatar-sm {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: var(--color-primary-100);
    color: var(--color-primary-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: var(--font-weight-bold);
}

.blog-card-footer .blog-read-time {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.blog-card-footer .blog-read-time::before {
    display: none;
}

/* Read more button */
.btn-read-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    min-width: 84px;
    background: var(--color-primary);
    color: #fff !important;
    font-size: 13px;
    font-weight: var(--font-weight-semibold);
    border-radius: 8px;
    text-decoration: none;
    line-height: 1;
    transition: background 0.15s ease, transform 0.08s ease, color 0.15s ease;
}
.btn-read-more:hover { background: var(--color-primary-dark); color: #fff !important; transform: translateY(-1px); }
.btn-read-more:active { transform: translateY(0); }

/* ===== Newsletter ===== */
.blog-newsletter-section {
    padding-top: 0;
    padding-bottom: var(--space-24);
}

.blog-newsletter {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-10);
    padding: var(--space-10) var(--space-12);
    background: linear-gradient(135deg, var(--color-gray-900) 0%, #0F172A 100%);
    border-radius: var(--radius-2xl);
    color: var(--color-white);
}

.blog-newsletter h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2);
    color: var(--color-white);
}

.blog-newsletter p {
    font-size: var(--font-size-base);
    color: var(--color-gray-400);
    margin-bottom: 0;
}

.blog-newsletter-form {
    display: flex;
    gap: var(--space-3);
    flex-shrink: 0;
}

.blog-newsletter-input {
    padding: var(--space-3) var(--space-5);
    width: 280px;
    background: var(--color-gray-800);
    border: 1px solid var(--color-gray-700);
    border-radius: var(--radius-lg);
    color: var(--color-white);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-base);
}

.blog-newsletter-input::placeholder {
    color: var(--color-gray-500);
}

.blog-newsletter-input:focus {
    border-color: var(--color-primary);
    outline: none;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .blog-featured {
        grid-template-columns: 1fr;
    }

    .blog-featured-image {
        min-height: 240px;
    }

    .blog-newsletter {
        flex-direction: column;
        text-align: center;
        padding: var(--space-8);
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding-top: calc(72px + var(--space-16));
        padding-bottom: var(--space-8);
    }

    .blog-hero h1 {
        font-size: var(--font-size-3xl);
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .blog-featured-content {
        padding: var(--space-6);
    }

    .blog-featured-content h2 {
        font-size: var(--font-size-xl);
    }

    .blog-filters {
        gap: var(--space-1);
    }

    .blog-filter {
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
    }

    .blog-newsletter-form {
        flex-direction: column;
        width: 100%;
    }

    .blog-newsletter-input {
        width: 100%;
    }

    .blog-card-image {
        height: 160px;
    }
}

@media (max-width: 640px) {
    .blog-hero h1 {
        font-size: var(--font-size-2xl);
    }

    .blog-featured-content h2 {
        font-size: var(--font-size-lg);
    }

    .blog-card-content h3 {
        font-size: var(--font-size-base);
    }
}