/* Resource Card (Articles, Books) */
.resource-card {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    backdrop-filter: blur(10px);
}

.resource-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.resource-card .card-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.resource-card .card-thumb.book-mode {
    aspect-ratio: 2/3;
    /* Taller for books */
    background: #1a1a1a;
}

.resource-card .card-thumb.book-mode img {
    object-fit: contain;
    padding: 1rem;
}

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

.resource-card:hover .card-thumb img {
    transform: scale(1.05);
}

.card-type-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 600;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    z-index: 2;
}

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

.card-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.meta-level {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

/* Dots for difficulty */
.level-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

.level-Beginner .level-dot {
    background: #22c55e;
}

/* Green */
.level-Intermediate .level-dot {
    background: #f59e0b;
}

/* Orange */
.level-Advanced .level-dot {
    background: #ef4444;
}

/* Red */
.level-undefined .level-dot {
    background: #a1a1aa;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    /* Multi-line truncation removed */
    display: block;
    line-height: 1.3;
}

/* Actions footer inside card */
.resource-card .card-actions {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    gap: 0.5rem;
}

.action-link {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s;
}

.action-link.primary {
    background: var(--accent-primary);
    color: white;
}

.action-link.primary:hover {
    background: #ff523b;
    transform: translateY(-1px);
}

.action-link:not(.primary) {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

.action-link:not(.primary):hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transform: translateY(-1px);
}

/* Dense Grid Override */
.resource-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)) !important;
    gap: 1.5rem;
}

/* Fallback Thumb */
.fallback-thumb {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #1a1a1a, #2a2a2a);
    display: flex;
    align-items: center;
    justify-content: center;
}