/*=====================================================================
  [1] Trending Articles - Global Variables
=====================================================================*/
:root {
    /* Light Mode */
    --ta-light-bg: #f8f9fa;         /* Section background */
    --ta-light-surface: #ffffff;    /* Card background */
    --ta-light-border: #e5e7eb;     /* Card border */
    --ta-light-heading: #111827;    /* Title color */
    --ta-light-text-body: #4b5563;  /* Excerpt color */
    --ta-light-text-meta: #6b7280;  /* Meta color (date, category) */
    --ta-accent-link: #2563eb;      /* Read More link color */
    --ta-accent-hover: #1e40af;     /* Link hover color */
}

/* Dark Mode Overrides */
[data-theme="dark"] {
    --ta-light-bg: #1e293b;
    --ta-light-surface: #334155;
    --ta-light-border: #475569;
    --ta-light-heading: #f1f5f9;
    --ta-light-text-body: #94a3b8;
    --ta-light-text-meta: #a0aec0;
    --ta-accent-link: #60a5fa;
    --ta-accent-hover: #3b82f6;
}

/*=====================================================================
  [2] Trending Articles - Section Layout
=====================================================================*/
.trending-articles {
    max-width: 1200px;
    margin: 0 auto 2.5rem; /* Increased bottom margin for separation */
    padding: 1.5rem 1rem 2rem;
    background-color: var(--ta-light-bg);
    transition: background-color 0.3s ease;
}

/* Section Header */
.trending-articles .section-header {
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--ta-light-border);
}

.trending-articles .section-header h2 {
    margin: 0;
    font-size: 1.75rem; /* Slightly larger heading */
    color: var(--ta-light-heading);
    font-weight: 800;
    transition: color 0.3s ease;
}

/* Articles Grid Container */
.trending-articles .articles-container {
    display: grid;
    /* Flexible grid to fit 260px cards */
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); 
    gap: 1.5rem; /* Slightly larger gap */
}

/*=====================================================================
  [3] Trending Articles - Card Styling
=====================================================================*/
.trending-articles .article-card {
    background: var(--ta-light-surface);
    border-radius: 12px; /* Slightly more rounded corners */
    border: 1px solid var(--ta-light-border);
    padding: 1rem; /* Increased padding */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    
    /* Smooth transitions and hover effect */
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1); 
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.trending-articles .article-card:hover {
    transform: translateY(-5px); /* Lift effect */
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: var(--ta-accent-link); /* Subtle accent border */
}

/* 3.1 Image */
.trending-articles .article-image {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
}

.trending-articles .article-image img {
    width: 100%;
    height: 180px; /* Slightly taller image */
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.trending-articles .article-card:hover .article-image img {
    transform: scale(1.05); /* Zoom effect on hover */
}

/* 3.2 Metadata */
.trending-articles .article-badge {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ta-accent-link); /* Use accent color for badge */
}

.trending-articles .article-category {
    font-size: 0.75rem;
    color: var(--ta-light-text-meta);
    font-weight: 500;
}

/* 3.3 Title & Excerpt */
.trending-articles .article-title {
    font-size: 1.1rem; /* Slightly larger title */
    font-weight: 700;
    color: var(--ta-light-heading);
    margin: 0;
    line-height: 1.4;
}

.trending-articles .article-excerpt {
    font-size: 0.9rem;
    color: var(--ta-light-text-body);
    margin: 0;
    /* Limit excerpt to 2 lines */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 3.4 Footer Meta */
.trending-articles .article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--ta-light-text-meta);
    padding-top: 0.5rem;
    border-top: 1px dashed var(--ta-light-border);
}

.trending-articles .article-read-more {
    color: var(--ta-accent-link);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.trending-articles .article-read-more:hover {
    color: var(--ta-accent-hover);
    text-decoration: underline;
}

/*=====================================================================
  [4] Responsive Design (Mobile)
=====================================================================*/
@media (max-width: 768px) {
    .trending-articles .articles-container {
        /* On tablets and smaller, allow smaller cards */
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }

    .trending-articles .article-image img {
        height: 140px;
    }
    
    .trending-articles .article-card {
        padding: 0.75rem;
    }
}

@media (max-width: 576px) {
    .trending-articles .articles-container {
        /* On small phones, use a single column */
        grid-template-columns: 1fr;
    }
    
    .trending-articles .article-image img {
        height: 160px;
    }
}