/* ========================================
   Carenox Blog — Styles
   ======================================== */

/* Blog Hero */
.blog-hero {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, var(--teal-50) 0%, var(--white) 100%);
    text-align: center;
}

.blog-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-top: 12px;
    margin-bottom: 16px;
}

.blog-hero-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Filter Tags */
.blog-filters {
    padding: 32px 0 16px;
    border-bottom: 1px solid var(--gray-200);
    background: var(--white);
    position: sticky;
    top: 64px;
    z-index: 90;
}

.filter-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-tag {
    padding: 8px 20px;
    border-radius: 100px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-body);
}

.filter-tag:hover {
    border-color: var(--teal-400);
    color: var(--teal-700);
    background: var(--teal-50);
}

.filter-tag.active {
    background: var(--teal-600);
    color: var(--white);
    border-color: var(--teal-600);
}

/* Featured Post */
.blog-featured {
    padding: 48px 0;
}

.featured-post-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.featured-post-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--teal-200);
}

.featured-post-image {
    position: relative;
    height: 100%;
    min-height: 320px;
    overflow: hidden;
}

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

.post-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--teal-600);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured-post-content {
    padding: 40px 40px 40px 0;
}

.featured-post-content h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    line-height: 1.3;
}

.featured-post-content p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 20px;
}

/* Post Meta */
.post-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.post-category {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--teal-700);
    background: var(--teal-50);
    padding: 3px 10px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.post-date,
.post-read-time {
    font-size: 0.8rem;
    color: var(--gray-400);
}

/* Post Link */
.post-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--teal-600);
    transition: var(--transition-fast);
}

.post-link:hover {
    color: var(--teal-800);
    gap: 10px;
}

.post-link svg {
    transition: var(--transition-fast);
}

/* Blog Grid */
.blog-grid-section {
    padding: 24px 0 80px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-xs);
}

.blog-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--teal-200);
    transform: translateY(-4px);
}

.blog-card-image {
    height: 200px;
    overflow: hidden;
}

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

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.blog-card-content {
    padding: 24px;
}

.blog-card-content h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 10px;
    line-height: 1.4;
}

.blog-card-content p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 16px;
}

/* Newsletter Section */
.blog-newsletter {
    padding: 60px 0 80px;
    background: var(--gray-50);
}

.newsletter-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
}

.newsletter-content h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.newsletter-content p {
    color: var(--gray-600);
    font-size: 0.95rem;
    max-width: 400px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.newsletter-form input[type="email"] {
    padding: 12px 20px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: var(--font-body);
    width: 260px;
    transition: var(--transition-fast);
}

.newsletter-form input[type="email"]:focus {
    outline: none;
    border-color: var(--teal-400);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.newsletter-form .btn {
    white-space: nowrap;
}

/* Active nav link */
.nav-link-active {
    color: var(--teal-600) !important;
    font-weight: 600;
}

/* Post Author */
.post-author {
    font-size: 0.8rem;
    color: var(--gray-400);
    margin-bottom: 12px;
}

/* Empty State */
.blog-empty {
    text-align: center;
    padding: 80px 24px;
}

.blog-empty-icon {
    margin-bottom: 20px;
}

.blog-empty h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 12px;
}

.blog-empty p {
    color: var(--gray-500);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Hidden state for filtered cards */
.blog-card.hidden,
.featured-post-card.hidden {
    display: none;
}

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

@media (max-width: 768px) {
    .blog-hero {
        padding: 120px 0 40px;
    }

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

    .featured-post-image {
        min-height: 220px;
    }

    .featured-post-content {
        padding: 24px;
    }

    .featured-post-content h2 {
        font-size: 1.4rem;
    }

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

    .newsletter-card {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
    }

    .newsletter-content p {
        max-width: 100%;
    }

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

    .newsletter-form input[type="email"] {
        width: 100%;
    }

    .filter-tags {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }

    .filter-tag {
        flex-shrink: 0;
    }
}


/* ========================================
   Blog Post Detail Page
   ======================================== */

.blog-post {
    padding: 140px 0 80px;
}

.back-to-blog {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--teal-600);
    margin-bottom: 32px;
    transition: var(--transition-fast);
}

.back-to-blog:hover {
    color: var(--teal-800);
}

.post-header {
    max-width: 760px;
    margin-bottom: 48px;
}

.post-header .post-category {
    margin-bottom: 16px;
    display: inline-block;
}

.post-header h1 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.25;
    margin-bottom: 20px;
}

.post-meta-detail {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--gray-500);
}

.post-meta-detail .post-author {
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Post Body — Article Content */
.post-body {
    max-width: 760px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--gray-700);
}

.post-body h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: 48px;
    margin-bottom: 16px;
}

.post-body h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-top: 32px;
    margin-bottom: 12px;
}

.post-body p {
    margin-bottom: 20px;
}

.post-body ul,
.post-body ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.post-body li {
    margin-bottom: 8px;
}

.post-body blockquote {
    border-left: 4px solid var(--teal-400);
    padding: 16px 24px;
    margin: 24px 0;
    background: var(--teal-50);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--gray-700);
    font-style: italic;
}

.post-body strong {
    color: var(--gray-900);
    font-weight: 600;
}

.post-body a {
    color: var(--teal-600);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.post-body a:hover {
    color: var(--teal-800);
}

.post-body hr {
    border: none;
    border-top: 1px solid var(--gray-200);
    margin: 48px 0;
}

.post-body code {
    background: var(--gray-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

@media (max-width: 768px) {
    .blog-post {
        padding: 120px 0 60px;
    }

    .post-header h1 {
        font-size: 1.5rem;
    }

    .post-meta-detail {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .post-body {
        font-size: 1rem;
    }
}