/**
 * Cloud SMS BD - Blog & Knowledge Base Styles
 * Path: public/css/blog.css
 */

:root {
    --dark-navy: #0B1F3A;
    --slate-navy: #1E293B;
    --primary-blue: #087CF0;
    --primary-green: #16C83C;
    --card-border: #E2E8F0;
    --box-shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.04);
    --box-shadow-hover: 0 14px 35px rgba(8, 124, 240, 0.12);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #F8FAFC;
    color: #334155;
}

/* Blog Hero Section */
.blog-index-hero {
    background: radial-gradient(100% 70% at 50% 10%, rgba(8, 124, 240, 0.08) 0%, rgba(22, 200, 60, 0.03) 60%, #FFFFFF 100%), #FFFFFF;
    padding: 70px 0 45px;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    text-align: center;
}

.blog-hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--dark-navy);
    letter-spacing: -0.5px;
}

/* Cards Styling */
.featured-blog-card, .standard-blog-card, .trending-card, .author-card, .lead-magnet-card, .blog-faq-section {
    background: #FFFFFF;
    border: 1px solid var(--card-border);
    box-shadow: var(--box-shadow-subtle);
    transition: all 0.35s ease;
    position: relative;
}

.featured-blog-card {
    border-radius: 24px;
    overflow: hidden;
    margin-bottom: 35px;
    position: relative;
}
.featured-blog-card:hover {
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(8, 124, 240, 0.3);
    transform: translateY(-3px);
}
.featured-blog-card img {
    width: 100%;
    height: 100%;
    min-height: 320px;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.featured-blog-card:hover img {
    transform: scale(1.02);
}

.standard-blog-card {
    border-radius: 20px;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    position: relative;
}
.standard-blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(8, 124, 240, 0.3);
}
.standard-blog-card img {
    height: 220px;
    object-fit: cover;
    width: 100%;
    transition: transform 0.5s ease;
}
.standard-blog-card:hover img {
    transform: scale(1.04);
}

.blog-title-link {
    color: var(--dark-navy);
    text-decoration: none;
    transition: color 0.2s ease;
}
.blog-title-link:hover {
    color: var(--primary-blue) !important;
}

/* Category Filter Pills */
.category-filter-bar {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 35px;
}

.cat-pill {
    padding: 9px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--card-border);
    background: #FFFFFF;
    color: #64748B;
    transition: all 0.25s ease;
    cursor: pointer;
}

.cat-pill:hover, .cat-pill.active {
    background: var(--primary-blue);
    color: #FFFFFF;
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(8, 124, 240, 0.25);
}

/* Trending Posts Sidebar */
.trending-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark-navy);
    border-left: 4px solid var(--primary-blue);
    padding-left: 12px;
    margin-bottom: 20px;
}
.trending-item {
    display: flex;
    gap: 15px;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--card-border);
    transition: transform 0.2s ease;
}
.trending-item:last-child {
    border-bottom: none;
}
.trending-item:hover {
    transform: translateX(4px);
}
.trending-number {
    font-size: 1.4rem;
    font-weight: 800;
    color: #94A3B8;
    min-width: 32px;
}

/* Author Bio Section */
.author-card {
    border-radius: 20px;
    padding: 28px;
    background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 100%);
    border: 1px solid #BFDBFE;
}

/* Lead Magnet Section */
.lead-magnet-card {
    border-radius: 24px;
    background: linear-gradient(135deg, #0B1F3A 0%, #1E293B 100%);
    color: #FFFFFF;
    padding: 40px;
}

/* FAQ Section */
.blog-faq-section {
    border-radius: 24px;
    padding: 40px;
}
.accordion-button:not(.collapsed) {
    background-color: rgba(8, 124, 240, 0.05);
    color: var(--primary-blue);
}
.accordion-button:focus {
    box-shadow: none;
    border-color: var(--card-border);
}

.btn-brand-primary {
    background-color: var(--primary-blue);
    color: #fff;
    font-weight: 600;
    transition: all 0.2s ease;
}
.btn-brand-primary:hover {
    background-color: #0665c3;
    color: #fff;
    box-shadow: 0 4px 12px rgba(8, 124, 240, 0.3);
}