/* Research Section - Redesigned */

.research-section {
    padding: 4rem 0;
    background-color: var(--bg);
}

.research-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.research-header h2 {
    font-size: 2rem;
    color: var(--text);
    margin: 0;
}

.research-filters {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.filter-group label {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
}

.filter-select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg);
    color: var(--text);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-select:hover {
    border-color: var(--accent);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.2);
}

/* Research Grid */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Research Card */
.research-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: var(--accent);
}

/* Featured Card */
.research-card.featured {
    border-left: 4px solid var(--accent);
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 100%;
}

.research-card.featured .card-image {
    height: 100%;
    min-height: 300px;
}

.research-card.featured .card-content {
    padding: 2rem;
}

/* Card Image */
.card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background-color: var(--bg);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.card-tag {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Card Content */
.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-light);
    align-items: center;
}

.date, .author {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.date::before {
    content: '\f133';
    font-family: 'Font Awesome 5 Free';
    font-weight: 400;
    font-size: 0.9em;
}

.author::before {
    content: '\f007';
    font-family: 'Font Awesome 5 Free';
    font-weight: 400;
    font-size: 0.9em;
}

.rating {
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rating.strong-buy {
    background-color: rgba(0, 200, 83, 0.15);
    color: #00c853;
}

.rating.buy {
    background-color: rgba(41, 121, 255, 0.15);
    color: #2979ff;
}

.rating.hold {
    background-color: rgba(255, 171, 0, 0.15);
    color: #ffab00;
}

.rating.sell {
    background-color: rgba(255, 82, 82, 0.15);
    color: #ff5252;
}

.card-content h3 {
    font-size: 1.35rem;
    margin: 0 0 0.75rem;
    color: var(--text);
    line-height: 1.4;
}

.card-content p {
    color: var(--text-light);
    margin: 0 0 1.25rem;
    line-height: 1.6;
    flex-grow: 1;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-weight: 500;
    font-size: 0.95rem;
    margin-top: auto;
    transition: color 0.2s ease;
}

.research-card:hover .card-link {
    color: var(--primary);
}

.card-link i {
    font-size: 0.8em;
    transition: transform 0.2s ease;
}

.research-card:hover .card-link i {
    transform: translateX(3px);
}

/* Responsive Adjustments */
@media (max-width: 992px) {
    .research-card.featured {
        grid-template-columns: 1fr;
    }
    
    .research-card.featured .card-image {
        height: 250px;
    }
}

@media (max-width: 768px) {
    .research-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .research-filters {
        width: 100%;
        flex-direction: column;
        gap: 1rem;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
    }
}

/* Dark Mode Adjustments */
[data-theme="dark"] .research-card {
    background: var(--bg-secondary);
    border-color: var(--border);
}

[data-theme="dark"] .card-image {
    background-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .filter-select {
    background-color: var(--bg);
    border-color: var(--border);
    color: var(--text);
}