/* Estilos comunes para las tarjetas de cursos */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.course-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.course-image {
    position: relative;
    height: 160px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--border-color);
}

.course-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    background: white;
}

.course-content h3 {
    margin: 0 0 10px 0;
    color: var(--text-color);
    font-size: 1.2rem;
    line-height: 1.3;
}

.course-description {
    color: #6C757D;
    line-height: 1.4;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.course-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #6C757D;
    font-size: 0.85rem;
}

.meta-item i {
    width: 14px;
    color: var(--primary-color);
}

.course-status {
    position: absolute;
    top: 12px;
    right: 12px;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.status-badge.completed {
    background: var(--success-color);
    color: white;
}

.status-badge.in-progress {
    background: var(--primary-color);
    color: white;
}

.course-actions {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-top: auto;
}

@media (max-width: 768px) {
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .course-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .course-actions .btn {
        width: 100%;
    }
}