/* ============================================
   TARJETAS DE IA - Estilos de las cards del ranking
   ============================================ */

.ai-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ai-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.5s ease-out;
    animation-fill-mode: both;
}

.ai-card:nth-child(1) { animation-delay: 0.05s; }
.ai-card:nth-child(2) { animation-delay: 0.1s; }
.ai-card:nth-child(3) { animation-delay: 0.15s; }
.ai-card:nth-child(4) { animation-delay: 0.2s; }
.ai-card:nth-child(5) { animation-delay: 0.25s; }
.ai-card:nth-child(6) { animation-delay: 0.3s; }
.ai-card:nth-child(7) { animation-delay: 0.35s; }
.ai-card:nth-child(8) { animation-delay: 0.4s; }
.ai-card:nth-child(9) { animation-delay: 0.45s; }
.ai-card:nth-child(10) { animation-delay: 0.5s; }

.ai-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
    border-radius: inherit;
}

.ai-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.ai-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--glass-border-hover);
}

.ai-card:hover::before {
    opacity: 0.05;
}

.ai-card:hover::after {
    opacity: 1;
}

/* Cabecera de la tarjeta */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.card-rank {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-display);
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 50px;
    text-align: center;
    line-height: 1;
}

.ai-card:nth-child(1) .card-rank {
    background: linear-gradient(135deg, #f59e0b, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.5rem;
}

.ai-card:nth-child(2) .card-rank {
    background: linear-gradient(135deg, #a0a0b8, #6a6a8a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-card:nth-child(3) .card-rank {
    background: linear-gradient(135deg, #cd7f32, #a0522d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-info {
    flex: 1;
    min-width: 0;
}

.card-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    font-family: var(--font-display);
    margin-bottom: 0.3rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.card-category {
    display: inline-block;
    padding: 0.2rem 0.8rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    font-size: 0.75rem;
    color: var(--accent-1);
    font-weight: 500;
}

.trending-badge {
    display: inline-block;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    background: var(--gradient-5);
    border-radius: 10px;
    color: white;
    font-weight: 600;
    animation: pulse 2s infinite;
}

.card-rating {
    text-align: center;
    min-width: 60px;
}

.rating-score {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--warning);
    display: block;
    font-family: var(--font-display);
}

.rating-stars {
    color: var(--warning);
    font-size: 0.7rem;
    letter-spacing: 1px;
}

.rating-count {
    display: block;
    font-size: 0.65rem;
    color: var(--text-tertiary);
    margin-top: 0.1rem;
}

/* Descripción */
.card-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Estadísticas rápidas */
.card-stats {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.card-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.card-stat i {
    color: var(--accent-1);
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

/* Botón expandir */
.expand-btn {
    width: 100%;
    padding: 0.7rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-top: 1rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.expand-btn:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
    border-color: var(--glass-border-hover);
}

.expand-btn i {
    transition: transform var(--transition-normal);
}

.expand-btn.expanded i {
    transform: rotate(180deg);
}

/* Detalles expandibles */
.card-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out, margin 0.5s ease-out;
    opacity: 0;
}

.card-details.expanded {
    max-height: 2000px;
    margin-top: 1rem;
    opacity: 1;
}

.detail-section {
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    margin-bottom: 0.8rem;
    border: 1px solid var(--glass-border);
}

.detail-section h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
    color: var(--accent-1);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.features-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.5rem;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.3rem 0;
}

.features-list i {
    color: var(--success);
    font-size: 0.7rem;
    flex-shrink: 0;
}

.detail-info {
    display: grid;
    gap: 0.5rem;
}

.detail-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-info i {
    width: 16px;
    text-align: center;
    color: var(--accent-1);
}

.detail-info a {
    color: var(--accent-4);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.detail-info a:hover {
    color: var(--accent-1);
    text-decoration: underline;
}

/* Estado de carga para tarjetas */
.ai-card.skeleton {
    animation: shimmer 1.5s infinite;
    pointer-events: none;
}

.ai-card.skeleton .card-rank,
.ai-card.skeleton .card-info h3,
.ai-card.skeleton .card-category,
.ai-card.skeleton .card-description,
.ai-card.skeleton .card-stat span {
    background: linear-gradient(90deg, 
        var(--glass-bg) 25%, 
        var(--glass-bg-hover) 50%, 
        var(--glass-bg) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
    color: transparent !important;
    -webkit-text-fill-color: transparent !important;
}

/* Responsive para tarjetas */
@media (max-width: 768px) {
    .ai-card {
        padding: 1.2rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .card-rank {
        font-size: 1.8rem;
        min-width: auto;
    }
    
    .card-stats {
        justify-content: center;
    }
    
    .features-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .ai-card {
        padding: 1rem;
        border-radius: var(--radius-lg);
    }
    
    .card-info h3 {
        font-size: 1.1rem;
    }
    
    .rating-score {
        font-size: 1.3rem;
    }
}